TLE 6368G1

Manufacturer Part NumberTLE 6368G1
ManufacturerInfineon Technologies
TLE 6368G1 datasheet
 


Specifications of TLE 6368G1

PackagesP-DSO-36CommentSuccessor: TLE6368G2
Vq (max)5.0 V, 3.3/2.6 V, 3.3/2.6 VIq (max)1,500.0 mA
Iq (typ)30.0 µAOutputLinear (Buck Preregulator)
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Multi-Voltage Processor Power Supply
1
Overview
1.1
Features
• High efficiency regulator system
• Wide input voltage range from 5.5V to 60V
• Stand-by mode with low current consumption
• Suitable for standard 12V/24V and 42V PowerNets
• Step down converter as pre-regulator:
5.5V / 1.5A
• Step down slope control for lowest EME
• Switching loss minimization
• Three high current linear post-regulators with
selectable output voltages:
5V / 800mA
3.3V or 2.6V / 500mA
3.3V or 2.6V / 350mA
• Six independent voltage trackers (followers):
5V / 17mA each
• Stand-by regulator with 1mA current capability
• Three independent undervoltage detection circuits
(e.g. reset, early warning) for each linear post-regulator
• Power on reset functionality
• Tracker control and diagnosis by SPI
• All outputs protected against short-circuit
• Power PG-DSO-36-26 package
• Green (RoHS compliant) version of TLE 6368 G1
• AEC qualified
Type
TLE 6368 G1 / SONIC
SMD = Surface Mounted Device
Data Sheet
TLE 6368 / SONIC
PG-DSO-36-26
Package
PG-DSO-36-26 (RoHS compliant)
1
Rev. 2.2, 2006-12-01

TLE 6368G1 Summary of contents

  • Page 1

    Multi-Voltage Processor Power Supply 1 Overview 1.1 Features • High efficiency regulator system • Wide input voltage range from 5.5V to 60V • Stand-by mode with low current consumption • Suitable for standard 12V/24V and 42V PowerNets • Step down ...

  • Page 2

    Short functional description The TLE 6368 G1 / SONIC is a multi voltage power supply system especially designed for automotive applications using a standard 12V / 24V battery as well as the new 42V powernet. The device is intended ...

  • Page 3

    Pin configuration ...

  • Page 4

    Pin definitions and functions Pin No. Symbol Function 1,18,19, GND Ground; to reduce thermal resistance place cooling areas on 36 PCB close to these pins. The GND pins are connected internally to the heat slug at the bottom. 2 ...

  • Page 5

    Pin definitions and functions (cont’d) Pin No. Symbol Function 11 Q_T4 Voltage Tracker Output T4 tracked to Q_LDO1; bypass with a 1µF ceramic capacitor for stability switched on and off by SPI command. Keep open, if not ...

  • Page 6

    Pin definitions and functions (cont’d) Pin No. Symbol Function 27 Q_LDO1 Voltage Regulator Output 1; 5V output; acts as the reference for the voltage trackers.The SPI and window watchdog logic is supplied from this voltage. For stability a ceramic ...

  • Page 7

    Basic block diagram Boost IN 2* Slew Wake CLK ERR Figure 2 Block Diagram Data Sheet TLE 6368 Standby Regulator BUCK REGULATOR Driver Internal Error- Reference OSZ PWM Amplifier feedback Charge Pump Protection ...

  • Page 8

    Detailed circuit description In the following major buck regulator blocks, the linear voltage regulators and trackers, the undervoltage reset function, the watchdog and the SPI are described in more detail. For applications information e.g. choice of external components, please ...

  • Page 9

    Current mode control scheme The regulation loop is located at the left lower corner in the schematic, there you find ...

  • Page 10

    As soon as the voltage at the SW pin passes zero volts the handover to the main switch occurs and the traditional switching behaviour of the ...

  • Page 11

    Power Sequencing V FB/L_IN V LDO_EN V Q_LDO1 5V V Rth5 3.3V 2.6V V (2.6V Mode) Q_LDO2 0.7V 5V LDO 2.6V V Rth2.6 V (3.3V Mode) Q_LDO3 5V LDO 3.3V V Rth3.3 +/- 50mV Figure 4 Power-up and -down sequencing ...

  • Page 12

    Voltage Trackers For off board supplies i.e. sensors six voltage trackers Q_T1 to Q_T6 with 17mA output current capability each are available. The output voltages match Q_LDO1 within +5 / -15mV. They can be individually turned on and off ...

  • Page 13

    Q_LDO1 had decreased below 3.3V (max.), the SPI will reset to the default settings including the 8ms delay time. If the voltage on Q_LDO1 during sleep or power off mode was kept above 3.3V the delay time set by the ...

  • Page 14

    CW CW definition closed window definition t ECW EOW, w. OSC OSCmax worst cases (1+ ) ECW, w.c. CW OSC OSCmin Minimum open window ...

  • Page 15

    P e rfe c t trig g e rin g a fte ...

  • Page 16

    Then three valid watchdog triggers are shown, no effect on the reset line and/or error pin is observed. With the missing watchdog trigger signal the error signal turns low immediately where the reset is asserted ...

  • Page 17

    DI line becomes the new control word. The DO output switches to tristate status at this point, thereby releasing the DO bus circuit for other uses. For details of the SPI timing please refer to ...

  • Page 18

    Write Bit meaning Function Reset timing: Reset delay time t valid at warm start RES Window watchdog timing: Open window time t and OW closed window time t valid at warm start CW Window watchdog function: Enable /disable window watchdog ...

  • Page 19

    Read Bit meaning Function Error indication, explanation see below this table Overtemperature warning Status of Tracker Output Q_T[1:6],only if output is ON Indication of cold start/ warm start, Q_LDO1 Indication of cold start/ warm start, Q_LDO2 Indication for open or ...

  • Page 20

    SPI Timings CS High to Low & rising edge of CLK enabled. Status information is transferred to Output Shift Register CS Low to High: Data from Register are transferred to e.g. Trackers CLK ...

  • Page 21

    Figure 11 SPI-Input Timing CLK DO (low to high) t VADO DO (high to low) Figure 12 DO Valid Data Delay Time and Valid Time Data Sheet t rIN t rDO t fDO 21 TLE 6368 / SONIC t <10ns ...

  • Page 22

    ENDO DO Figure 13 DO Enable and Disable Time Data Sheet t fIN 22 TLE 6368 / SONIC t <10ns rIN 0.7 V Q_LDO1 50% 0.2 V Q_LDO1 10k 50% Pullup to V Q_LDO1 t DISDO 10k ...

  • Page 23

    Characteristics 3.1 Absolute Maximum Ratings Item Parameter Symbol 3.1.1 Supply Voltage Input IN V Voltage IN V Voltage IN I Current IN 3.1.2 Buck-Switch Output SW V Voltage SW I Current SW 3.1.3 Feedback and Linear Voltage Regulator Input ...

  • Page 24

    Charge Pump Capacitor Connector C+ V Voltage CH I Current CH 3.1.9 Charge Pump Storage Capacitor CCP V Voltage CCP I Current CCP 3.1.10 Standby Voltage Regulator output Q_STB V Voltage Q_Stb I Current Q_Stb 3.1.11 Voltage Regulator output ...

  • Page 25

    Voltage Tracker output voltage Q_T5 V Voltage Q_T5 I Current Q_T5 3.1.19 Voltage Tracker output voltage Q_T6 V Voltage Q_T6 I Current Q_T6 3.1.20 Select Input SEL V Voltage SEL I Current SEL 3.1.21 Wake Up Input Wake V ...

  • Page 26

    SPI Chip Select Not Input CS V Voltage CS I Current CS 3.1.29 Error Output Pin V Voltage ERR I Current ERR 3.1.30 Thermal Resistance R Junction- thja ambient R Junction- thja ambient R Junction- thjc case 3.1.31 Temperature ...

  • Page 27

    Functional Range -40°C < T < 150 °C j Item Parameter Symbol Supply V IN, min Voltage Supply V IN, max Voltage Ripple at V FB/L_IN FB/L_IN ripple Note: Within the functional range the IC can be operated . ...

  • Page 28

    Recommended Operation Range -40°C < T < 150 °C j Item Parameter Symbol Buck L B Inductor Buck C B Capacitor Bootstrap C BTP Capacitor SLEW R SLEW resistor Linear C Q_LDO1-3 regulator capacitors Tracker C Q_T1-6 bypass capacitors ...

  • Page 29

    Electrical Characteristics The electrical characteristics involve the spread of values guaranteed within the specified supply voltage and ambient temperature range. Typical values represent the median values at room temperature, which are related to production processes. -40 < T <150 ...

  • Page 30

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.11 Output V OUT voltage 3.4.12 Bootstrap I BTSTR charging current at start-up 3.4.13 Bootstrap V BTSTR voltage (internal charge pump) 3.4.14 Bootstrap V BTSTR, ...

  • Page 31

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.21 Load V Regulation 3.4.22 Current limit I Q_LDO1limit 3.4.23 Ripple PSRR1 rejection 3.4.24 Output C Q_LDO1 Capacitor Voltage Regulator Q_LDO2 3.4.25 Output V Q_LDO2 ...

  • Page 32

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.34 Ripple PSRR2 rejection 3.4.35 Output C Q_LDO2 Capacitor Voltage Regulator Q_LDO3 3.4.36 Output V Q_LDO3 voltage 3.3V 3.4.37 Output V Q_LDO3 voltage 3.3V 3.4.38 ...

  • Page 33

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.46 Output V voltage tracking accuracy 3.4.47 Output V voltage tracking accuracy 3.4.48 Overvoltage V OVQ_T1 threshold 3.4.49 Undervoltage V UVQ_T1 threshold 3.4.50 Current limit ...

  • Page 34

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.59 Tracker load C Q_T2 capacitor Voltage Tracker Q_T3 3.4.60 Output V voltage tracking accuracy 3.4.61 Output V voltage tracking accuracy 3.4.62 Overvoltage V OVQ_T3 ...

  • Page 35

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.70 Undervoltage V UVQ_T4 threshold 3.4.71 Current limit I Q_T4 limit 3.4.72 Ripple PSRR rejection 3.4.73 Tracker load C Q_T4 capacitor Voltage Tracker Q_T5 3.4.74 ...

  • Page 36

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.82 Output V voltage tracking accuracy 3.4.83 Overvoltage V OVQ_T6 threshold 3.4.84 Undervoltage V UVQ_T6 threshold 3.4.85 Current limit I Q_T6 limit 3.4.86 Ripple PSRR ...

  • Page 37

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.94 Turn off V wake th, off Wake-up threshold 3.4.95 Wake-up I wake input current 3.4.96 Wake up t wake,min input on time Reset R1 ...

  • Page 38

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.105 Reset V RTH threshold Q_LDO2, de Q_LDO2 3.4.106 Reset V RTH threshold Q_LDO2, in hysteresis V RTH Q_LDO2 Q_LDO2, de 3.4.107 Reset output V ...

  • Page 39

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.116 Reset output low voltage 3.4.117 Reset output low sink current 3.4.118 Reset High leakage current ...

  • Page 40

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol 3.4.127 Watchdog t WRL reset low time 3.4.128 Watchdog t SR reset delay time Error Output ERR V 3.4.129 H-output ERR,H voltage level V 3.4.130 ...

  • Page 41

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol V 3.4.139 H-input IH voltage threshold V 3.4.140 L-input IL voltage threshold V 3.4.141 Hysteresis of IHY input voltage I 3.4.142 Pull down I current ...

  • Page 42

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol Logic Output DO V 3.4.153 H-output DOH voltage level V 3.4.154 L-output DOL voltage level I 3.4.155 Tri-state DO_TRI leakage current C 3.4.156 Tri-state DO ...

  • Page 43

    T <150 °C; V =13.5V unless otherwise specified j IN Item Parameter Symbol t 3.4.166 DO rise time rDO t 3.4.167 DO fall time fDO t 3.4.168 DO enable ENDO time t 3.4.169 DO disable DISDO time t ...

  • Page 44

    Typical charcteristics Buck converter switching frequency vs. junction temperature 420 f SW kHz 400 380 360 340 320 300 280 -50 - Buck converter output voltage at 1.5A load vs. junction temperature 6.0 V FB/L_IN V 5.9 ...

  • Page 45

    Start-up bootstrap charging current vs. junction temperature 280 I BTSTR µA 240 200 160 120 -50 - Device start-up voltage (acc. to spec. 3.2) vs. junction temperature 6 5.5 5.0 4.5 4.0 ...

  • Page 46

    Q_LDO1 output voltage at 800mA load vs. junction temperature 5.20 V Q_LDO1 V 5.15 5.10 5.05 5.00 4.95 4.90 4.85 -50 - Reset1 threshold at decreasing V_LDO1 vs. junction temperature V 4.80 RTH Q_LDO1 4.75 4.70 ...

  • Page 47

    Q_LDO2 current limit (2.6V mode) vs. junction temperature 850 I Q_LDO2 V 800 750 700 650 600 550 500 -50 - Q_LDO3 output voltage at 300mA load (3.3V mode) vs. junction temperature 3.50 V Q_LDO3 V 3.45 3.40 ...

  • Page 48

    Reset3 threshold at decreasing V_LDO3 (3.3V mode) vs. junction temperature V 3.00 RTH Q_LDO3 2.95 2.90 2.85 2.80 2.75 2.70 2.65 -50 - Tracker current limit vs. junction temperature 32 I Q_Tx ...

  • Page 49

    Q_STB current limit vs. junction temperature 4.0 I Q_STB mA 3.5 3.0 2.5 2.0 1.5 1.0 0.5 -50 - Data Sheet Device current consumption in off mode vs. junction temperature off µ ...

  • Page 50

    Application Information 5.1 Application Diagram DBOOST C L BOOST I 100 µH Battery 100 nF 47 µF 100 nF R Slew IGN ...

  • Page 51

    Buck converter circuit A typical choice of external components for the buck converter is given in figure 14. For basic operation of the buck converter the input capacitor the catch diode D BTP B pump capacitors ...

  • Page 52

    Buck output capacitor (C The choice of the output capacitor effects straight to the minimum achievable ripple which is seen at the output of the buck converter. In continuous conduction mode the ripple of the output voltage equals: V ...

  • Page 53

    Bootstrap capacitor (C The voltage at the Bootstrap capacitor does not exceed 15V, a ceramic type with a minimum the buck output capacitance and voltage class 16V would be sufficient. 5.2.6 External charge pump capacitors (C ...

  • Page 54

    Reverse polarity protection The Buck converter is due to the parasitic source drain diode of the DMOS not reverse polarity protected. Therefore example, the reverse polarity diode is shown in the application circuit, in general the reverse ...

  • Page 55

    Components recommendation - overview Device Type L B82479 I DO3340P-473 DO5022P-683 DS5022P-473 SLF12575T-330M3R2 Ceramic I1 C Low ESR tantalum I2 C Ceramic I3 D S3B Boost L B82479 B DO3340P-473 DO5022P-683 DS5022P-473 SLF12575T-330M3R2 Ceramic BTSR ...

  • Page 56

    Layout recommendation The most sensitive points for Buck converters - when considering the layout - are the nodes at the input and the output of the Buck switch, the DMOS transistor. For proper operation the external catch diode and ...

  • Page 57

    Package Outlines PG-DSO-36-26 SMD = Surface Mounted Device Dimensions in mm 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 ...

  • Page 58

    TLE 6368 / SONIC Revision History: Previous Version: Page Subjects (major changes since last revision) general Updated Infineon logo #1 Added “AEC” and “Green” logo #1 Added “Green Product” and “AEC qualified” to the feature list #1 Updated Package Name ...

  • Page 59

    ... Infineon Technologies Office. Infineon Technologies Components may only be used in life-support devices or systems 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 affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body support and/or maintain and sustain and/or protect human life ...