ZHCSQI1A November   2022  – November 2023 TPS92622-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1  Power Supply (SUPPLY)
        1. 6.3.1.1 Power-On Reset (POR)
        2. 6.3.1.2 Suppply Current in Fault Mode
      2. 6.3.2  Enable and Shutdow(EN)
      3. 6.3.3  Constant-Current Output and Setting (INx)
      4. 6.3.4  Thermal Sharing Resistor (OUTx and RESx)
      5. 6.3.5  PWM Control (PWMx)
      6. 6.3.6  Supply Control
      7. 6.3.7  Diagnostics
        1. 6.3.7.1 LED Short-to-GND Detection
        2. 6.3.7.2 LED Open-Circuit Detection
        3. 6.3.7.3 LED Open-Circuit Detection Enable (DIAGEN)
        4. 6.3.7.4 Overtemperature Protection
        5. 6.3.7.5 Low Dropout Operation
      8. 6.3.8  FAULT Bus Output With One-Fails-All-Fail
      9. 6.3.9  FAULT Table
      10. 6.3.10 LED Fault Summary
      11. 6.3.11 IO Pins Inner Connection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Undervoltage Lockout, V(SUPPLY) < V(POR_rising)
      2. 6.4.2 Normal Operation V(SUPPLY) ≥ 4.5 V
      3. 6.4.3 Low-Voltage Dropout Operation
      4. 6.4.4 Fault Mode
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Applications
      1. 7.2.1 BCM Controlled Rear Lamp With One-Fails-All-Fail Setup
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curves
      2. 7.2.2 Independent PWM Controlled Rear Lamp By MCU
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
        3. 7.2.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  9. 8 Device and Documentation Support
    1. 8.1 接收文档更新通知
    2. 8.2 支持资源
    3. 8.3 Trademarks
    4. 8.4 静电放电警告
    5. 8.5 术语表
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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订购信息

4 Pin Configuration and Functions

GUID-20231106-SS0I-SCZ5-X2VL-P9QG18LFB5CL-low.svg Figure 4-1 DGN Package 12-Pin HVSSOP With PowerPAD™ Integrated Circuit Package (Top View)
GUID-20221101-SS0I-MZDW-GGD0-ZG5XZ0HX3NMW-low.svg Figure 4-2 DRR Package 12-Pin WSON With PowerPAD™ Integrated Circuit Package (Top View)
Table 4-1 HVSSOP Pin Functions
PIN I/O DESCRIPTION
NAME NO.
SUPPLY 1 I Device power supply
IN1 2 I Current input for channel 1
IN2 3 I Current input for channel 2
DIAGEN 4 I

Enable pin for LED open-circuit detection to avoid false open diagnostics during low-dropout operation.
PWM1 5 I PWM input for OUT1 and RES1 current output ON and OFF control
PWM2 6 I PWM input for OUT2 and RES2 current output ON and OFF control
FAULT 7 I/O Fault output, support one-fails–all-fail fault bus
EN 8 I Device enable pin
OUT2 9 O Current output for channel 2
RES2 10 O Current output for channel 2 with external thermal resistor
OUT1 11 O Current output for channel 1
RES1 12 O Current output for channel 1 with external thermal resistor
DAP 13 - GND/ Thermal Pad
Table 4-2 WSON Pin Functions
PIN I/O DESCRIPTION
NAME NO.
SUPPLY 1 I Device power supply
IN1 2 I Current input for channel 1
IN2 3 I Current input for channel 2
DIAGEN 4 I

Enable pin for LED open-circuit detection to avoid false open diagnostics during low-dropout operation.
PWM1 5 I PWM input for OUT1 and RES1 current output ON and OFF control
PWM2 6 I PWM input for OUT2 and RES2 current output ON and OFF control
FAULT 7 I/O Fault output, support one-fails–all-fail fault bus
GND 8 - Ground
OUT2 9 O Current output for channel 2
RES2 10 O Current output for channel 2 with external thermal resistor
OUT1 11 O Current output for channel 1
RES1 12 O Current output for channel 1 with external thermal resistor