TLE8242-2L Infineon Technologies, TLE8242-2L Datasheet

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TLE8242-2L

Manufacturer Part Number
TLE8242-2L
Description
Manufacturer
Infineon Technologies
Datasheet

Specifications of TLE8242-2L

Packages
PG-LQFP-64
Channels
8.0
Output Current
-
Rds (on)
-
Quiescent Current (max.)
0,005 mA
Operating Range
5.5 - 42.0 V

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TLE8242-2L
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
D a t a S h e e t , R e v . 1 . 0 , F e b 2 0 1 0
T L E 8 2 4 2 - 2
8 C h a n n e l F i x e d F r e q u e n c y C o n s t a n t C u r r e n t
C o n t r o l W i t h C u r r e n t P r o f i l e D e t e c t i o n
A u t o m o t i v e P o w e r

Related parts for TLE8242-2L

TLE8242-2L Summary of contents

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... SPI Message #6 - PWM Offset (channel 0- 5.9.2.8 SPI Message #7 - PWM Offset (channel 4- 5.9.2.9 SPI Message #8 - Main Period Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 5.9.2.10 SPI Message #9 - Control Variable Set (KP and KI 5.9.2.11 SPI Message #10 - Current and Dither Amplitude Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54 5.9.2.12 SPI Message #11 - Dither Period Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Data Sheet 2 TLE8242-2 Table of Contents Rev. 1.0, 2010-02-09 ...

Page 3

... SPI Message #16 - Current Profile Detection Setup 5.9.2.18 SPI Message #17 - Current Profile Detection Setup 5.9.2.19 SPI Message #18 - Current Profile Detection Feedback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 5.9.2.20 SPI Message #19 - Read Generic Flag Bits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 6 Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 6.1 Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 7 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75 8 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 Data Sheet 3 TLE8242-2 Table of Contents Rev. 1.0, 2010-02-09 ...

Page 4

... Over current shutdown - monitored at POSx pin – Programmable over current threshold – Programmable over current delay time – Programmable over current retry time – Battery pin (BAT) overvoltage shutdown Type TLE8242-2 Data Sheet Package PG-LQFP-64 4 TLE8242-2 PG-LQFP-64 Marking TLE8242-2L Rev. 1.0, 2010-02-09 ...

Page 5

... Vapor Management Valve – Suspension Control 1.3 General Description The TLE8242G eight channel low-side constant current control predriver IC. Each channel can be configured to function either in direct PWM mode or in constant current mode by setting the appropriate CM bit in SPI message #1. 1.3.1 Direct PWM Mode Operation ...

Page 6

... During constant current operation, the PWM control signal driven at the OUTx pin is controlled by the control loop shown in Figure 3. The PWM Frequency is programmed via the SPI message # 8. In this message the main period Data Sheet Electronic Module 0.2 Ω 10nF Vs Electronic Module 0.2 Ω 10nF 6 TLE8242-2 Overview Vs Vs Rev. 1.0, 2010-02-09 ...

Page 7

... M can be set to 32, 64, or 128. In direct F = CLK F PWM ∗ setpoint (11bit) = Setpoint [mA Rsense [ Ohm ] = ∗ error ∗ ∗ 0. Rsense [ Ohm ] ( ∗ * error k ∗ ∗ 0. 320 [mV] ∗ R [ohm] SENSE ( ) − INT ( − + − INT ( Rev. 1.0, 2010-02-09 TLE8242-2 Overview ...

Page 8

... Cleared Remains Operational Integrator value for first PWM cycle = value from end of last complete PWM cycle. Cleared Cleared Remains Operational Remains Operational 8 Autozero Value “OFF” A/D Amp DUTY CYCLE + PWM + Block CL K DIRECT PWM Rev. 1.0, 2010-02-09 TLE8242-2 Overview POSx NEGx OUTx ...

Page 9

... Auto Zero The TLE8242 includes an autozero feature for each channel. When the setpoint of a channel is set and the autozero is triggered by an SPI command, the offset of the amplifiers and analog to digital converters are measured. The time required for the autozero sequence is calculated according to the formula: The measured offsets can be read via SPI message #14 ...

Page 10

... Autozero, Channel Logic, Current Profile Current Control, Dither, PWM, Autozero, Channel Logic, Current Profile Current Control, Dither, PWM, Autozero, Channel Logic, Current Profile 10 TLE8242-2 Block Diagram POS0 A/D Converter NEG0 OUT0 PWM Diagnostics POS1 A/D Converter NEG1 OUT1 PWM Diagnostics POS2 A/D Converter NEG2 ...

Page 11

... Test Pin; Used for IC test. Must be connected to GND_D for specified operation of the IC Test Pin; Used for IC test. Must be connected to GND_D for specified operation of the IC Ground; ground pin for analog circuits Ground; ground pin for substrate connection near analog circuits 11 TLE8242-2 Pin Configuration CS_B SCK ...

Page 12

... Channel #7 Negative sense pin; Connect to the “FET” side of the external sense resistor Channel #7 Positive sense pin; Connect to the “load” side of the external sense resistor Not Connected; do not connect to external supply, ground, or signal 12 TLE8242-2 Pin Configuration Rev. 1.0, 2010-02-09 ...

Page 13

... Supply Voltage;5V input for analog. An external capacitor connected between this pin and GND_A near this pin. Not Connected; do not connect to external supply, ground, or signal Ground; ground pin for analog circuits Gate driver output for channel #1; Connect to the gate of the external MOSFET 13 TLE8242-2 Pin Configuration Rev. 1.0, 2010-02-09 ...

Page 14

... Not Connected; do not connect to external supply, ground, or signal Channel #1 Positive sense pin; Connect to the “load” side of the external sense resistor Channel #1 Negative sense pin; Connect to the “FET” side of the external sense resistor Not Connected; do not connect to external supply, ground, or signal 14 TLE8242-2 Pin Configuration Rev. 1.0, 2010-02-09 ...

Page 15

... V -0.3 min(V io signal + 0.3; 6) -500 500 I 5 –5 CLAMP T -65 150 stg T -40 150 -500 500 -750 750 15 TLE8242-2 Unit Conditions V – V – V – V – V – V – V – mV – °C – °C – Rev. 1.0, 2010-02-09 ...

Page 16

... V_SIGNAL f 20 CLK f 10 PWM f 10 PWM pos , neg pos , neg Limit Values Min. Typ. – 38 thJA 16 TLE8242-2 General Product Characteristics Unit Conditions Max – 5.25 V – 5.25 V – 40 MHz 4000 Hz 8000 Hz Parameter deviations possible 30 V – Parameter deviations possible ...

Page 17

... V5A1 I – – V5A2 I – – V5A3 I – – V_SIGNAL I – – VBAT I – – VBAT 17 TLE8242-2 Unit Conditions Max. 4.5 V Internal reset occurs if V5A1 V5A2, or V5A3 is below the undervoltage limit 4.5 V Internal reset occurs if V5D is under the undervoltage limit =40MHz CLK ...

Page 18

... No synchronization is required between the clock signal connected to the CLK pin and the SPI clock signal (SCK). All internal clock signals of the TLE8242 (PWM signals, A/D sampling, diagnostics, etc.) are generated from the this clock input. Also, this clock is required for the device to accept and respond to SPI messages. ...

Page 19

... I -50 – - – – 0.4 fault.low I 2.0 – fault,max t 8 – – – – TLE8242-2 Unit Conditions =200µ =-200µA L µA V =V_SIGNAL in µA V =0V (Current in drain from V_SIGNAL) V Active state; I =2mA fault mA Active state; ...

Page 20

... Diagnostics The TLE8242 includes both on-state and off-state diagnostics. On-state diagnostics are active when the OUTx pin is driven high and off-state diagnostics are active when the OUTx pin is driven low. A detected fault can be used to activate the open drain FAULT pin on the IC. This pin can be used to interrupt the microcontroller when a fault is detected ...

Page 21

... No Fault - The fault type has been tested and no fault is present 1 0 This combination cannot occur 1 1 Fault - This particular fault type has occurred Data Sheet Functional Description and Electrical Characteristics OUTx High Bit SB-T 21 TLE8242-2 OUTx Low Bit OFF-T Rev. 1.0, 2010-02-09 ...

Page 22

... If the TLE8242 direct PWM mode, Open Load ON detection is disabled (OL-ON-F = 0). If the TLE8242 IC is not in direct PWM mode and the OUTx pin is high for 64 PWM periods, then the open load fault ON mode fault is detected, and the OL-ON-F bit in the diagnostic register is set. This bit will be cleared when SPI message # read ...

Page 23

... PWM_Start OUTx Tested Timer SB-T short LOAD ok Vsb VPOS Fault Filter SB-F Load Current Diagnostic Read via SPI Figure 10 On-State Diagnostic Timing - Short to Vbat Data Sheet Functional Description and Electrical Characteristics Fault Retry Time Short to Vbat 23 TLE8242-2 Tested Timer Fault Filter Rev. 1.0, 2010-02-09 ...

Page 24

... If SG- and OL-OFF- then the OL-F Bit in the FAULT register is set SPI fault read occurs, the OFF-T Bit, the SG-F Bit and the OL-F Bit in the SPI registers are cleared to zero (and the timers are cleared to 0). Data Sheet Functional Description and Electrical Characteristics 64 * PWM period 24 TLE8242-2 Rev. 1.0, 2010-02-09 ...

Page 25

... Data Sheet Functional Description and Electrical Characteristics (Vol+Vsg)/2 + (2.5V) - Tested Timer (OFF) + Digital OL-OFF-FD OL-FA CMP Filter - - Digital SG-FD SG-FA CMP + Filter Tested Timer Fault Filter 25 TLE8242-2 V SUPPLY V5A Ipu(sg) (150ua) POSx OA Ipd(ol) Cpos (150ua) NEGx Vol (3V) Cneg OUTx Vsg (1.7V) Tested Timer Fault Filter Rev. 1.0, 2010-02-09 ...

Page 26

... Filter Unit Conditions Typ. Max. – – V Rising voltage on BAT V5A-1.5 V – µA 150 225 V5A=5V, V POS V5A-2.8 V µA -150 -90 V5A=5V, V POS µA – 10 V5A=5V, V POS µA – 60 V5A=5V, V POS Rev. 1.0, 2010-02-09 TLE8242-2 =V =V5A NEG =V =0V NEG =V =0V NEG =V =V5A NEG ...

Page 27

... T ff ⋅ n predivider fault f CLK T tt ⋅ n predivider fault f CLK 27 TLE8242-2 Unit Conditions V POS voltage required to trigger a short to battery fault: config bits = 00 V POS voltage required to trigger a short to battery fault: config bits = 01 V POS voltage required to trigger a short to battery fault: config bits = ...

Page 28

... I 15 – O_SNK T = -40 °C to +150 °C, all voltages with respect to ground, positive j Symbol Limit Values Min. Typ. 0 – - – 28 TLE8242-2 Unit Conditions Max. 200 kΩ Internal pull down resistor present at each OUTx pin - V5D-2V OUT OUT ...

Page 29

... The channel selection for the Minimum and Maximum Current Over Dither Period message will also select the channel for the Average Dither Current Feedback function. Data Sheet Functional Description and Electrical Characteristics Avg Dither [ ] = Feedback mA ∗ Dither 29 TLE8242-2 Current 320 [mV] ∗ Steps Rsense [Ohm] Rev. 1.0, 2010-02-09 ...

Page 30

... The maximum duty cycle is clipped to 100% Data Sheet Functional Description and Electrical Characteristics = PWM CLK f = CLK f PWM programmed as a 14-bit number via SPI PWM duty cycle ON CLK PWM duty cycle [ ] = Duty Cycle % ∗ TLE8242-2 M ∗ 32 ∗ 100% Rev. 1.0, 2010-02-09 ...

Page 31

... Current Profile Detection The TLE8242 will detect current profiles due to the change in inductance caused by the opening/closing of solenoid valves. Examples of the types of waveforms seen in this instance are shown in Examples of waveforms that fail the Current Profile Detection test are shown in OUTx Voltage Measured Current ...

Page 32

... The full 10-bit result of the A/D converter is used for the CPD function. Using a 200 mOhm sense resistor, this translates into a resolution of 1.56 mA. Data Sheet Functional Description and Electrical Characteristics Zone 1 Zone 2 Timeout for Failure Zone 1 Timeout for Failure 32 TLE8242-2 Rev. 1.0, 2010-02-09 ...

Page 33

... Zone 3 In zone 3, the TLE8242 sample rate for the CPD function can be altered from the sample rate used for zone 1 and zone zone 1 and zone 2, the TLE8242 compares the difference between two A/D samples and calculates ADDIFF. The sample rate can be altered in zone 3 such that ADDIFF is calculated as shown in Table 5.This allows for more noise immunity and also allows the programming of a lower effective slope to be detected ...

Page 34

... Each channel of the Adler 2 is individually configurable for the current profile detection patterns. The thresholds and counts for each zone must not be changed via SPI while a current profile detection sequence is active, otherwise an incorrect detection may occur. Data Sheet Functional Description and Electrical Characteristics Figure 18, the Detection Interrupted SPI Bit is 34 TLE8242-2 Rev. 1.0, 2010-02-09 ...

Page 35

... Bits 23-0: Message Data The message from the microcontroller must be sent MSB first. The data from the SO pin is sent MSB first. The TLE8242 will sample data from the SI pin on the rising edge of SCK and will shift data out of the SO pin on the rising edge of SCK. ...

Page 36

... T – – 50 SO_RISE T – – 50 SO_FALL C – – – – TLE8242-2 Unit Conditions ns CS_B falling (0.8V) to SCK rising (0.8V) ns SCK falling (0.8V) to CS_B rising (0.8V) ns CS_B rise (2.0V) to CS_B fall (2.0V) ns SCK rise to rise ns SCK falling (0.8V) to CS_B fall (2.0V) ns SCK high time (rise 2.0V to fall 2.0V) ns SCK low time (fall ...

Page 37

... Functional Description and Electrical Characteristics clock clock Bit 30 Bit Bit 30 Bit 29 Bit 1 37 TLE8242 clock clock don’t care 31 32 Bit 0 Bit 1 don’t care LSB t 13 high impedance Bit 0 don’t care LSB Rev ...

Page 38

... Description Read / Write Bit 0 = Read 1 = Write Message Identifier 000 0000 = IC Version / Manufacturer IC Manufacturer ID Number 1100 0001= Infineon Technologies Version Number 0000 0010 = B21 38 TLE8242 not used Manuf ...

Page 39

... Fault Mast for ENABLE pin 0 = ENABLE=Low doesn’t trigger FAULT pin (RESET value ENABLE=Low does trigger FAULT pin Diagnostic Timer 00 = divide by 128, nfault = 10 ... 11 (RESET value divide by 192, nfault = 10 ... divide by 128, nfault = 2... divide by 256, nfault = 10 ... 11 39 TLE8242 CM2 CM3 CM4 ...

Page 40

... Fault Mast for ENABLE pin 0 = ENABLE=Low doesn’t trigger FAULT pin (RESET value ENABLE=Low does trigger FAULT pin Diagnostic Timer 00 = divide by 128, nfault = 10 ... 11 (RESET value divide by 192, nfault = 10 ... divide by 128, nfault = 2... divide by 256, nfault = 10 ... 11 40 TLE8242 CM2 CM3 CM4 ...

Page 41

... SB_RETRY0 lsb msb lsb SB3 SB_RETRY3 lsb msb lsb msb SB_RETRY0 lsb msb lsb SB3 SB_RETRY3 lsb msb lsb msb Rev. 1.0, 2010-02-09 TLE8242 SB1 msb lsb 1 0 lsb 17 16 SB1 msb lsb 1 0 lsb ...

Page 42

... Equation: Short to Battery Retry Period Data Sheet Functional Description and Electrical Characteristics Description Short To Battery Threshold 1.3V (RESET value) Short to Battery Retry Time Retry after 16* xxxx periods (RESET Value = 1111b or 240 PWM periods) ∗ 16 SB_Retry = Retry Period f PWM 42 TLE8242-2 x Rev. 1.0, 2010-02-09 (1) ...

Page 43

... SB_RETRY4 lsb msb lsb SB7 SB_RETRY7 lsb msb lsb msb SB_RETRY4 lsb msb lsb SB7 SB_RETRY7 lsb msb lsb msb Rev. 1.0, 2010-02-09 TLE8242 SB5 msb lsb 1 0 lsb 17 16 SB5 msb lsb 1 0 lsb ...

Page 44

... Equation: Short to Battery Retry Period Data Sheet Functional Description and Electrical Characteristics Description Short To Battery Threshold 1.3V (RESET value) Short to Battery Retry Time Retry after 16* xxxx periods (RESET Value = 1111b or 240 PWM periods) ∗ 16 SB_Retry = Retry Period f PWM 44 TLE8242-2 x Rev. 1.0, 2010-02-09 (2) ...

Page 45

... Short to Ground - Fault (RESET value = 0) Short to Ground & Open Ld (Gate Off) - Tested (RESET value = 0) Short to Battery - Fault (RESET value = 0) Short to Battery - Tested (RESET value = 0) Open Load (Gate Off) - Fault (RESET value = 0) Open Load (Gate On) - Fault (RESET value = 0) 45 TLE8242 unused ...

Page 46

... Short to Ground - Fault (RESET value = 0) Short to Ground & Open Load (Gate Off) - Tested (RESET value = 0) Short to Battery - Fault (RESET value = 0) Short to Battery - Tested (RESET value = 0) Open Load (Gate Off) - Fault (RESET value = 0) Open Load (Gate On) - Fault (RESET value = 0) 46 TLE8242 unused 5 ...

Page 47

... OFFSET2 lsb msb Description Message Identifier 000 0110 = PWM Offset (channel 0-3) Channelx Pulse Offset 1/32 of period set by N value (RESET Value = 0) 47 TLE8242 OFFSET0 msb OFFSET3 lsb msb ...

Page 48

... Equation: Phase Sync Offset Data Sheet Functional Description and Electrical Characteristics OFFSET = Phase Synch Offset TLE8242-2 x PWM Rev. 1.0, 2010-02-09 (3) ...

Page 49

... OFFSET6 lsb msb Description Message Identifier 000 0111 = PWM Offset (channel 4-7) Channelx Pulse Offset 1/32 of period set by N value (RESET Value = 0) 49 TLE8242 OFFSET4 msb OFFSET7 lsb msb ...

Page 50

... Equation: Phase Sync Offset Data Sheet Functional Description and Electrical Characteristics OFFSET = Phase Synch Offset 32 50 TLE8242 PWM Rev. 1.0, 2010-02-09 (4) ...

Page 51

... Divider M (Number of A/D samples per PWM period (RESET Value 128 11 = 512 (Direct PWM) = 128 (Current Control) Divider N (Number of main CLK periods between A/D samples) (RESET Value = 271 or 625 N*M*T & T PWM CLK 51 TLE8242 unused N*T ADC CLK Rev ...

Page 52

... PWM) = 128 (Current Control) Divider N (Number of main CLK periods between A/D samples) (RESET Value = 271 or 625 N*M*T & T PWM CLK ∗ PWM Period [ seconds] f CLK 52 TLE8242 N*T ADC CLK Rev. 1.0, 2010-02-09 ...

Page 53

... Control Loop Integral Coefficient (RESET Value = CHAN msb lsb msb Description Message Identifier 0010 =Control Variable Set Channel Number Control Loop Proportional Coefficient (RESET Value = 0) Control Loop Integral Coefficient (RESET Value = 0) 53 TLE8242 ...

Page 54

... Operation during ENABLE deactivation 0 = disable (RESET Value remain in operation at last setpoint including dither Dither Step Size (LSb’s value is 2 (RESET Value = 0) Note: A value of 0 will disable the dither function Current Set Point (RESET Value = 0) 54 TLE8242 Dither Step Size msb 5 ...

Page 55

... Dither Stepsize [ ] = Current Setpoint [ ] = Setting Dither Step Size msb the current setpoint LSb) ∗ Dither Steps 320 [mV] ∗ Rsense [Ohm] 320 [mV] ∗ Rsense [Ohm] Rev. 1.0, 2010-02-09 TLE8242 lsb (6) (7) ...

Page 56

... Description Message Identifier 0100 =Dither Period Set Channel Number Number of Dither Steps in 1/4 waveform (RESET Value = 0) Note: A value of 0 will disable the dither function 56 TLE8242 unused Number of Steps msb ...

Page 57

... Equation: Dither Period Setting Data Sheet Functional Description and Electrical Characteristics ∗ 4 Number = Dither Period f PWM 57 TLE8242-2 of Steps Rev. 1.0, 2010-02-09 (8) ...

Page 58

... Description Message Identifier 0101 =Current Read Channel Number VALID Reset when the register is read or when the channel number is changed (RESET Value = 0) Set when a new data set is available. 58 TLE8242 unused ...

Page 59

... Note: return value will be 2047until the first dither cycle is completed - (RESET Value = 2047) MAX 320 [ ] = ∗ Feedback mA 11 Rsense 2 MIN 320 [ ] = ∗ Feedback Rsense MIN or MAX [ ] = Feedback TLE8242-2 [mV] [Ohm] [mV] [Ohm] 320 [mV] ∗ Rsense [Ohm] Rev. 1.0, 2010-02-09 (9) (10) (11) ...

Page 60

... Note: the channel selection for this message will also be the channel selected for the Max / Min Current Read Command. VALID BIT Reset when register is read or when channel number is changed. Set when new data is available. (RESET Value = 0) 60 TLE8242 unused ...

Page 61

... Feedback mA 2 Avg Dither [ ] = Feedback mA 17 ∗ 2 Dither Avg Dither [ ] = Feedback Current 320 [mV] ∗ Steps Rsense [Ohm] Current 320 [mV] ∗ 13 Rsense [Ohm] Current 320 [mV] ∗ Steps Rsense [Ohm] Current 320 [mV] ∗ Rsense [Ohm] Rev. 1.0, 2010-02-09 TLE8242-2 (12) (13) (14) (15) ...

Page 62

... Description Message Identifier 0111 =Autozero Trigger / Read Channel Number Autozero - Gate on has occurred since last read 0 = not occurred (RESET Value has occurred Autozero - Gate off has occurred since last read 0 = not occurred (RESET Value has occurred 62 TLE8242 unused ...

Page 63

... Otherwise, the calculated autozero values will be incorrect resulting in inaccurate current regulation when a non-zero setpoint is programmed. Autozero Equation: Auto-zero value Data Sheet Functional Description and Electrical Characteristics Description Autozero value - Gate On Autozero value - Gate Off AZ_value [ ] = ∗ offset Rsense 63 TLE8242-2 320 [mV] [Ohm] Rev. 1.0, 2010-02-09 (16) ...

Page 64

... Method and Fault Mask Configuration” message. If this message is written when the Control Mode is set to “Current Control” the PWM data will be stored but not used until the control mode is switched to “Direct PWM”. (RESET Value = 0) 64 TLE8242 ...

Page 65

... See the “Control Method and Fault Mask Configuration” message. (RESET Value = 0) PWM duty [ ] = Duty Cycle % ∗ N PWM duty [ ] = Duty Cycle % ∗ PWM duty cycle cycle ∗ 100% M cycle ∗ 100% 32 Rev. 1.0, 2010-02-09 TLE8242 lsb (17) (18) ...

Page 66

... Profile Setup 1 Channel Number Threshold 3 (Zone 3) (RESET Value = 0) Threshold 2 (Zone 2) (RESET Value = 0) Threshold 1 (Zone 1) (RESET Value = 0) Count 3 (Zone 3) (RESET Value = 0) Count 2 (Zone 2 (RESET Value = 0) Count 1 (Zone 1) (RESET Value = 0) 66 TLE8242 Threshold 2 lsb msb Count 1 lsb msb Rev ...

Page 67

... Profile Setup 1 Channel Number Threshold 3 (Zone 3) (RESET Value = 0) Threshold 2 (Zone 2) (RESET Value = 0) Threshold 1 (Zone 1) (RESET Value = 0) Count 3 (Zone 3) (RESET Value = 0) Count 2 (Zone 2) (RESET Value = 0) Count 1 (Zone 1) (RESET Value = 0) 67 TLE8242 Threshold 2 lsb msb Count 1 lsb msb Rev ...

Page 68

... ADDIFF=A/D - A CHAN 0 0 msb lsb Time out msb Description Message Identifier 1010 =Current Profile Setup 2 Channel Number 68 TLE8242 unused unused ZONE 3 SET lsb ...

Page 69

... Field Bits Type Time out 9:4 DATA Zone 3 Set 1:0 DATA Data Sheet Functional Description and Electrical Characteristics Description Current Profile Time out 1 lsb = 16 ADC sample periods (RESET Value = 0) Zone 3 A/D setup 00: ADDIFF=A/D - A/D m m-1 01: ADDIFF=A/D - A/D m m-2 10: ADDIFF=A/D - A/D m m-3 11: ADDIFF=A/D - A/D m m-4 69 TLE8242-2 Rev. 1.0, 2010-02-09 ...

Page 70

... Description Message Identifier 1011 =Current Profile Detection Feedback Channel Number Detect Interrupt Bit (RESET Value = 0) Reset when this register is read. Set when the gate of the external FET is commanded off before the current profile detection sequence has completed. 70 TLE8242 unused 5 4 ...

Page 71

... TLE8242-2 A current profile sequence has not completed since the last read of this register At least one current profile sequence has completed successfully since the last read of this register At least one time out failure has occurred since the last ...

Page 72

... Phase Synch has occurred since last read 0 = not occurred (RESET Value has occurred Enable Latch bit (RESET Value = 1) Set to 0 when this register is read and ENABLE pin is High Set to 1 when the ENABLE pin is Low 72 TLE8242 unused 5 ...

Page 73

... Field Bits Type RB_L 0 DATA Data Sheet Functional Description and Electrical Characteristics Description RESET_B Latch bit (RESET Value = 1) Set to 0 when this register is read. Set to 1 when the a High to Low transition occurs on the RESET_B pin 73 TLE8242-2 Rev. 1.0, 2010-02-09 ...

Page 74

... GNDA2 GNDA3 GNDSA The GNDA pins must be connected to a low impedance ground plane directly at the pin http://www.infineon.com/ 74 Application Information BAT Low Z paths are required between POSx, NEGx and the sense resistor POS0 NEG0 0.2 Ohm SPD15N06S2L-64 OUT0 TLE 8242 Rev. 1.0, 2010-02-09 TLE8242-2 ...

Page 75

... Green products are RoHS-Compliant (i.e Pb- free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). You can find all of our packages, sorts of packing and others in our Infineon Internet Page “Products”: http://www.infineon.com/products. Data Sheet 75 TLE8242-2 Package Outlines Dimensions in mm Rev. 1.0, 2010-02-09 ...

Page 76

... Data Sheet 76 TLE8242-2 Package Outlines Rev. 1.0, 2010-02-09 ...

Page 77

... Pages 72: corrected the name of the register in the MSG_ID descriptions Page 74, Figure 21 : updated the package outline drawing 1.0 2009-12-09 Changes from TLE8242L Rev 1.0 datasheet 1.0 2009-12-09 Section 1.3.2, equation for duty-cycle: revised equation to include the M variable the # of ADC samples per PWM period. revised equation for calculating the duration of the autozero procedure 1 ...

Page 78

... Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life ...

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