ATA6823-PHQW Atmel, ATA6823-PHQW Datasheet
ATA6823-PHQW
Specifications of ATA6823-PHQW
Related parts for ATA6823-PHQW
ATA6823-PHQW Summary of contents
Page 1
... Description ® The Atmel ATA6823 is designed for automotive body and powertrain applications. The IC is used to drive a continuous current motor in a full H-bridge configuration. An external microcontroller controls the driving function of the IC by providing a PWM sig- nal and a direction signal and allows the use of the motor-control application. ...
Page 2
... Figure 1-1. Block Diagram CP CPLO Charge Pump CPIH 12V VG Regulator PBAT Vint 5V Regulator VINT VBAT CP VBATSW VCC 5V Regulator VCC Atmel ATA6823 GATE GATE VRES Driver 2 HS Driver 1 OTP 12 bit Logic Control Oscillator VBG Bandgap EN1 WD DIR VMODE /RESET Microcontroller R R GATE ...
Page 3
... Receive signal from LIN bus for microcontroller Diagnostic output 3 Diagnostic output 2 Diagnostic output 1 Source voltage H-bridge, high-side 1 Gate voltage H-bridge, high-side 1 Source voltage H-bridge, high-side 2 Gate voltage H-bridge, high-side 2 Gate voltage for reverse protection NMOS, blocking capacitor 470nF/25V/X7R Atmel ATA6823 CPLO 22 CPHI 21 VRES ...
Page 4
... VBAT I 31 VBATSW O 32 EN2 I Atmel ATA6823 4 Function Charge pump capacitor 220nF/25V/X7R Blocking capacitor 470nF/25V/X7R Power supply (after reverse protection) for charge pump and H-bridge Gate voltage H-bridge, low-side 2 Gate voltage H-bridge, low-side 1 Power ground for H-bridge and charge pump 5V/100mA supply for microcontroller, blocking capacitor 2.2µF/10V/X7R ...
Page 5
... The LIN interface has a separate thermal shutdown with disabled the low-side driver at typi- cally 165°C. 4856K–AUTO–01/11 Figure 1-1 on page The internal supply voltage V must not be used for any other supply purpose! INT Atmel ATA6823 2). regulator and keeps the whole INT ) and of undervoltage alarm (V THOV regulator and all ...
Page 6
... Go to Sleep A HIGH to LOW transition at pin EN1 and a following permanent LOW for the time t (typically20 µs) switches the IC to Sleep mode. Atmel ATA6823 6 ; for this reason the input voltage level must be positive and not higher than V level will drive the IC into Active mode. EN2 is debounced ...
Page 7
... For the selection of the external FETs this Wake-up by pin LIN Active Mode Sleep Mode EN1 VCC LIN µs gotosleep Atmel ATA6823 regulator starts CC ) before For the selection sc with a maximum of 15µs according to Active Mode µs Regulator Wake-up Time akelin < ...
Page 8
... The watchdog expects a triggering signal (a rising edge) from the microcontroller at the WD input within a period time window switched off during Sleep mode. Figure 3-3. Timing Diagram of the Watchdog Function t res /RESET Atmel ATA6823 8 Correlation between VCC Output Voltage and Reset Threshold 5.15V 4.9V 4.85V 4.1V V CC1-VtHRESH WD WD ...
Page 9
... T . OSC < tHRESx ). RESth Atmel ATA6823 = 33 k ±1% we get the following typical parame 16.88ms ±10% WD regulator is switched on. The CC (typically 68ms), then switches to high. For an res and wait t for the rising edge on WD. res ...
Page 10
... Figure 3-5. Definition of Bus Timing Parameters TX (input to transmitting Node) TH Rec(max Dom(max) (Transceiver supply of transmitting node) TH Rec(min) TH Dom(min) RX (output of receiving Node 1) RX (output of receiving Node 2) Atmel ATA6823 Bit Bit t t Bus_dom(max) Bus_rec(min) LIN Bus Signal t t Bus_dom(min) t rx_pdf(1) t rx_pdr(2) t Bit Thresholds of receiving node 1 ...
Page 11
... This diode prevents the reverse current of VBUS during differential voltage between VSUP and BUS (V No additional termination resistor is necessary to use the ATA6823 in LIN slave nodes. If this IC is used for LIN master nodes necessary that the BUS pin be terminated via an external 1k resistor in series with a diode to VBAT ...
Page 12
... The drivers for the high-side control use the charge pump voltage to supply the gates with a voltage of VG above the battery voltage level. The low-side drivers are supplied by VG directly possible to control the external load (motor) in the forward and reverse direction (see 100% is possible in both directions. Atmel ATA6823 12 Status of the Diagnostic Outputs Device Status OT1 ...
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... (nF) (tolerance: ±5% ±0.15µ must be greater than 5k and should be as close as possible to 10k , the CC Timing of the Drivers 50 LxHL Lxf 80% 20 HxLH Hxr t 80% CC 20% and t include the cross conduction time t HxLH LxLH Atmel ATA6823 t t LxLH Lxr HxHL Hxf . ...
Page 14
... If the voltage at PBAT falls under V > above. Atmel ATA6823 14 (typically 10µs) the signal SC (short circuit) will be set and the drivers will be switched off the drivers will be switched off immediately and DG1 will be set to “H”. It will be cleared (4V with tolerances) for a time SC (5 ...
Page 15
... TX –0.3 (1) LIN –27 S1, S2 –2 L1 – 0.3 PGND (2) H1 – CPLO –0.3 CPHI –0.3 VRES –0.3 VBATSW –0.3 –40 STORE Symbol Value R thjc R thja Atmel ATA6823 Max. Unit 0 V +0.3 V + 0.3 V VCC V + 0.3 V VCC +5 0.3 V VINT V + 0.3 V VINT V + 0.3 V VCC ...
Page 16
... Static latch-up tested according to AEC-Q100-004 and JESD78. • samples, 0 failures • Electrical post stress testing at room temperature In test, the voltage at the pins VBAT, LIN, CP, VBATSW, Hx, and Sx must not exceed 45V when not able to drive the specified current. Atmel ATA6823 16 Symbol Min. V ...
Page 17
... VBAT 13.5V 31 VBAT < 40V VBAT 29 = 0mA to 100mA 9V VBAT 29 = 0mA to 100mA = 0mA to 100mA 29 = 0mA to 100mA 29 > VBAT 29 Atmel ATA6823 Symbol Min. Typ. I VBAT1 I VBAT2 V 4.8 4.94 INT V 1.225 1.235 1.245 BG V 21.2 THOV_UP V 19.8 THOV_DOWN V 1 TOVhys V 6.8 THUV_UP V 6.5 ...
Page 18
... Tested during characterization only 7. Supplied by charge pump 8. See section “Cross Conduction Time” 9. Voltage between source-drain of external switching transistors in active case 10. The short-circuit message will never be generated for switch-on time < t Atmel ATA6823 and for –40°C ambient 125°C unless stated otherwise. ...
Page 19
... VBAT 8 = 1000 load = 18V VBAT 8 = 1000 load BUS VBAT_max BUS = 12V VBAT < 18V VBAT 8 < 18V BUS = V BUS VBAT Atmel ATA6823 Symbol Min. Typ. 780 t2 T OSC V OLRES PURES IL 2 RXD IH 1 RXD 0.9 V BUSrecdrv V VBAT V _LoSUP V _HiSUP V 0.6 ...
Page 20
... Tested during characterization only 7. Supplied by charge pump 8. See section “Cross Conduction Time” 9. Voltage between source-drain of external switching transistors in active case 10. The short-circuit message will never be generated for switch-on time < t Atmel ATA6823 and for –40°C ambient 125°C unless stated otherwise. ...
Page 21
... Bus_rec(max) Bit < 18V VBAT 13 = max ( rx_pdr rx_pdf < 18V VBAT – t rx_pdr rx_pdf < 18V VBAT LIN 12, 10, 11 12, 10, 11 12, 10, 11 12, 10, 11 12, 10, 11 Atmel ATA6823 Symbol Min. Typ. Max. D3 0.417 D4 0.590 t rx_pd t –2 +2 rx_sym 150 BUS 0 0 VCC HYS 0.3 0.5 0.7 R ...
Page 22
... Tested during characterization only 7. Supplied by charge pump 8. See section “Cross Conduction Time” 9. Voltage between source-drain of external switching transistors in active case 10. The short-circuit message will never be generated for switch-on time < t Atmel ATA6823 and for –40°C ambient 125°C unless stated otherwise. ...
Page 23
... VBAT = 13.5V 26, 27 VBAT = 13.5V VBAT 26 5nF Gx = 13.5V 26, 27 VBAT 18 13.5V VBAT = 13.5V 18, 20 VBAT = 13.5V, VBAT 18 5nF Gx = 13.5V 18, 20 VBAT (8) = 10k , C = 1nF Atmel ATA6823 Symbol Min. Typ. Max. I HxL, 100 HxH, –100 HxL LxL (7) VBAT VBAT V HxHstat1 V – PDHx t LxHL t 0 ...
Page 24
... Tested during characterization only 7. Supplied by charge pump 8. See section “Cross Conduction Time” 9. Voltage between source-drain of external switching transistors in active case 10. The short-circuit message will never be generated for switch-on time < t Atmel ATA6823 and for –40°C ambient 125°C unless stated otherwise. ...
Page 25
... Application 9.1 General Remark This chapter describes the principal application for which the ATA6823 was designed. Because Atmel tion, and environment, no warranties of fitness for a particular purpose are given. Table 9-1. Component C VINT C VCC VRES R RWD R LINex C LINex 10. Errata 10.1 Faulty Pulse at DG1 ...
Page 26
... Ordering Information Extended Type Number ATA6823-PHQW 12. Package Information Package: QFN Exposed pad 4.7 x 4.7 Dimensions in mm Not indicated tolerances ± 0. Drawing-No.: 6.543-5097.01-4 Issue: 1; 24.02.03 Atmel ATA6823 26 Package QFN32 0.9 ±0.1 +0 0.05 -0. 0.65 nom. Remarks Pb-free 7 4 technical drawings according to DIN specifications ...
Page 27
... Section 10 “Errata” on page 24 added Section 11 “ESD and Latch-up Requirements” on page 26 deleted Section 5.4 “5V/3.3V VCC Regulator” on pages changed Section 10 “Electrical Characteristics” number 3.3 on page 18 changed Section 12 “Ordering Information” on page 27 changed Put datasheet in a new template Atmel ATA6823 27 ...
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