TLE7368G Infineon Technologies, TLE7368G Datasheet

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TLE7368G

Manufacturer Part Number
TLE7368G
Description
IC REGULATOR LDO DSO-36
Manufacturer
Infineon Technologies
Datasheet

Specifications of TLE7368G

Applications
Automotive
Voltage - Supply
4.5 V ~ 45 V
Operating Temperature
-40°C ~ 150°C
Mounting Type
Surface Mount
Package / Case
DSO-36
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Other names
SP000104573
TLE7368G
TLE7368GNT
TLE7368GT
TLE7368GTR

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
TLE7368G
Manufacturer:
INFINEON/英飞凌
Quantity:
20 000
T L E 7 3 6 8
Next Generation Micro Controller Supply
D a t a S h e e t
Rev. 2.1, 2010-11-22
A u t o m o t i v e P o w e r
TLE7368G
TLE7368E
TLE7368-2E
TLE7368-3E

Related parts for TLE7368G

TLE7368G Summary of contents

Page 1

... Next Generation Micro Controller Supply TLE7368G TLE7368E TLE7368-2E TLE7368- Rev. 2.1, 2010-11- ...

Page 2

... Table of Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.1 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3.2 Pin Definitions and Functions TLE7368G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1 Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.2 Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.3 Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 4.4 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 5 Detailed Internal Circuits Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 5.1 Buck Regulator ...

Page 3

... LDO2: 3 2.6V 2% (selectable output), 700 mA current limit • Integrated linear regulator control circuit to supply controller cores: – LDO3 control for an external NPN power stage: – 1 TLE7368G and TLE7368E – 1 TLE7368-2E – 1 TLE7368-3E • Post-regulators for off board supply: – 2 Tracking regulators following the main 5 V, 105 mA and 50 mA • ...

Page 4

Description The TLE7368 device is a multifunctional power supply circuit especially designed for Automotive powertrain systems using a standard 12 V battery. The device is intended to supply and monitor next generation 32-bit microcontroller families (13 m lithography) where voltage ...

Page 5

Block Diagram IN EN_µC EN_IGN RO_1 RT RO_2 WDI IN_STBY MON_STBY Figure 1 Block Diagram Data Sheet INT.BIASING, CHARGE PUMP PWM CONTROLLER 5.5V TLE 7368 TEMPERATURE SENSE ENABLE ≥ 1 5.0V RESET (WINDOW COMPARATOR) TIMING 2.6/3.3V RESET 1.5/ (WINDOW ...

Page 6

... Q_LDO2 7 Q_T1 8 Q_T2 9 TLE 7368 G EN_uC 10 EN_IGN 11 SEL_STBY 12 C1- 13 C2- 14 C1+ 15 C2+ 16 CCP 17 GND_P 18 GND Figure 2 Pin Configuration 3.2 Pin Definitions and Functions TLE7368G Pin Pin Symbol (TLE7368G) (TLE7368E GND_A RO_1 4 4 RO_2 5 – N.C. Data Sheet GND_A 1 36 MON_STBY IN_STBY ...

Page 7

... Pin Pin Symbol (TLE7368G) (TLE7368E IN_LDO2 7 6 Q_LDO2 8 7 Q_T1 9 8 Q_T2 10 9 EN_uC 11 10 EN_IGN 12 11 SEL_STBY CCP 18 17 GND_P – 18, 19 GND_A 19, 20 20, 21 – N.C. Data Sheet Function LDO2 input; Connect this pin straight to the Buck converter output or add a dropper in between to reduce power dissipation on the chip. Voltage regulator 2 output ...

Page 8

... Pin Pin Symbol (TLE7368G) (TLE7368E SEL_LDO2 23 24 WDI 24 25 WDO 25 BST 28 29 FB/L_IN 29 30 Q_LDO1 30 31 FB_EXT 31 32 DRV_EXT 32, 33 – N. Q_STBY 35 34 IN_STBY 36 35 MON_STBY Monitoring output for stand-by regulator; power fail active low – 36 GND_A Data Sheet Function Selection input LDO2 ...

Page 9

General Product Characteristics 4.1 Absolute Maximum Ratings 1) Absolute Maximum Ratings +150 C; all voltages with respect to ground. j Pos. Parameter Stand-by Regulator Input IN_STBY 4.1.1 Voltage 4.1.2 Current Selection Input SEL_STBY 4.1.3 ...

Page 10

Absolute Maximum Ratings (cont’ - +150 C; all voltages with respect to ground. j Pos. Parameter Reset Output RO_2 4.1.24 Voltage 4.1.25 Voltage 4.1.26 Current Reset Timing RT 4.1.27 Voltage 4.1.28 Voltage 4.1.29 Current Tracking Regulator ...

Page 11

Absolute Maximum Ratings (cont’ - +150 C; all voltages with respect to ground. j Pos. Parameter Feedback and Post-Regulators Input FB/L_IN 4.1.52 Voltage 4.1.53 Voltage 4.1.54 Current Linear Regulator 2 Input IN_LDO2 4.1.55 Voltage 4.1.56 Voltage ...

Page 12

Note: Stresses above the ones listed here may cause permanent damage to the device. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Note: Integrated protection functions are designed to prevent IC destruction under fault conditions ...

Page 13

Electrical Characteristics Electrical Characteristics 13 - +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter Buck Regulator 4.4.1 ...

Page 14

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter Voltage Regulator Q_LDO1 4.4.16 Output ...

Page 15

... IN_LDO2, ripple I = 250mA; Q_LDO2 C = 4.7 F ceramic Q_LDO2 1) X7R M – 1) kHz; mA TLE7368G, TLE7368E V = 1.2 V FB_EXT mA TLE7368- 0.9V FB_EXT mA TLE7368- 1.0V FB_EXT V TLE7368G, TLE7368E V TLE7368-2E V TLE7368-3E A – V mV/A = 5.4 V; FB/L_IN V = 9.0 V; CCP 100 FB_EXT 1)5) kHz < < 105 mA Q_T1 4.0 V Q_T1 105 mA ...

Page 16

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter 4.4.51 Power supply ripple rejection ...

Page 17

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter 4.4.65 Load regulation 4.4.66 Line ...

Page 18

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter 4.4.79 Undervoltage Reset threshold on ...

Page 19

... SEL_LDO2 = GND; V decreasing Q_LDO2 mV SEL_LDO2 = GND; V TLE7368G, TLE7368E V decreasing; FB_EXT FB/L_IN 3.3/2.6 V Q_LDO2 mV TLE7368G, TLE7368E FB/L_IN 3.3/2.6 V; Q_LDO2 FB_EXT FB_EXT mV TLE7368G, TLE7368E V TLE7368G, TLE7368E V increasing FB_EXT V TLE7368G, TLE7368E V decreasing FB_EXT mV TLE7368G, TLE7368E V TLE7368-2E V decreasing; FB_EXT FB/L_IN Q_LDO2 3.3/2.6 V; Rev. 2.1, 2010-11-22 ; ...

Page 20

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter 4.4.112 Undervoltage Reset headroom on ...

Page 21

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter 4.4.128 Overvoltage Reset reaction time ...

Page 22

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter Monitoring Block 4.4.129 MON_STBY, Threshold ...

Page 23

Electrical Characteristics (cont’ +150 C, IN IN_STBY 9.0 V; SEL_STBY = Q_STBY; all voltages with respect to ground. CCP Pos. Parameter Window Watchdog 4.4.136 H-input voltage ...

Page 24

Detailed Internal Circuits Description In the following the main circuit blocks of the TLE7368, namely the Buck converter, the linear regulators, the trackers, the charge pump, the enable and reset circuits and the watchdog are described in more detail. ...

Page 25

Figure 3 Buck Converter Block Diagram 5.1.3 Electromagnetic Emission Reduction The Buck DMOS power stage is implemented as multiple cells. This allows to control the slope of the power stage’s current at turn on/off by sequentially turning on/off the cells, ...

Page 26

Charge Pump The charge pump serves as support circuit for the Buck converter’s high side driver supply, the linear regulators drive circuits for low drop operation and the internal device biasing blocks. In order to guarantee full device operation ...

Page 27

Power Up and Power Down Sequencing In a supply system with multiple outputs the sequence of enabling the individual regulators is important. Especially 32-bit microcontrollers require a defined power up and power down sequencing. the power up and power ...

Page 28

IN CCP V CCP BST FB/L_IN V Q_LDO1 V Q_LDO2 V Q_LDO1 V FB_EXT V Q_LDO2 V Q_T<1,2> V Q_LDO1 Figure 4 Power Sequencing of the TLE7368 Data Sheet V ...

Page 29

Stand-by Regulator The intention of the stand-by or keep alive regulator is to supply e.g. external memory even with the main microcontroller supply being disabled. Therefore the state of the stand-by regulator is not controlled by the enable block, ...

Page 30

V FB/L_IN V ORT Q_LDO1 Q_LDO1 ORT Q_LDO1 RD, RO_1 *) V RO_1 V ORT Q_LDO2 Q_LDO2 ORT Q_LDO2 FB_EXT V ORT FB_EXT ORT FB_EXT RD, ...

Page 31

Monitoring Circuit The monitoring block within the TLE7368 detects an undervoltage at the stand-by regulator output and is able to distinguish between two different undervoltage situations. When the stand-by output gets back into regulation after an undervoltage event, the ...

Page 32

IN_STBY V Q_STBY *) V RO_1 *) t V RR, MON_STBY MON_STBY Power on reset functionality, with RO_1 low during under voltage at Q_STBY *) output pulled to e.g. Q_LDO1 by 10kOhm Figure 7 Stand by Monitor ...

Page 33

Watchdog Circuit Trigger During Closed Window Figure 8 Window Watchdog State Diagram Principle of Operation: A Window Watchdog is integrated in the TLE7368 to monitor a microcontroller. The Window Watchdog duty cycle consists of an "Open window" and a ...

Page 34

WDI. A valid trigger signal is a falling edge from the "Open Window" the watchdog immediately terminates the "Open Window" and enters the "Closed Window" state. The "Closed Window" has a fixed duration applied during the "Closed Window. After ...

Page 35

Application Information Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. Battery ...

Page 36

This section intends to give hints for correct set up of the IC, i.e. to avoid misbehavior caused by the influence of other PCB board circuits and shows also how to calculate external components, power loss, etc. 6.1 Choosing Components ...

Page 37

Setting up the Stand-by Regulator The stand by regulator provides an output current sourced via linear regulation directly from Battery even when the main regulator is disabled. This low quiescent current regulator is commonly used ...

Page 38

Package Outlines 1.1 ±0.1 0. 0.65 = 11.05 36 Index Marking 45˚ 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Stand off Figure 11 Power-P-DSO-36 (Plastic - Dual ...

Page 39

Index Marking Exposed Diepad Dimensions Package PG-DSO-36-24, -41, -42 PG-DSO-36-38 PG-DSO-36-38 PG-DSO-36-50 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Does ...

Page 40

... Page 3, Overview: Updated table: Status Final/Target removed. • Page 12, Thermal resistance table: Inserted values for version TLE7368E. • Page 12, Thermal resistance table: Updated values for version TLE7368G. • 4.4.72/4.4.73: Condition described more precise: Inserted “MON_STBY = H”. • Figure 9: Modified graph for better description of the window watchdog function. ...

Page 41

... 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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