ZHCSL42 April   2020 TPS92612

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     典型应用图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Device Bias
        1. 7.3.1.1 Power-On Reset (POR)
      2. 7.3.2 Constant-Current Driver
      3. 7.3.3 PWM Control
      4. 7.3.4 Protection
        1. 7.3.4.1 Short-to-GND Protection
        2. 7.3.4.2 Over Temperature Protection
    4. 7.4 Device Functional Modes
      1. 7.4.1 Undervoltage Lockout, V(SUPPLY)< V(POR_rising)
      2. 7.4.2 Normal State, V(SUPPLY) ≥ 4.5 V
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Single LED Driver
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Single-Channel LED Driver With Heat Sharing
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
        3. 8.2.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 接收文档更新通知
    2. 11.2 支持资源
    3. 11.3 商标
    4. 11.4 静电放电警告
    5. 11.5 Glossary
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

6.7 Typical Characteristics

TPS92612 D001-IOUT-SUPPLY-SLDS233.gif
TA = 25 °C
Figure 2. Output Current vs Supply Voltage
TPS92612 D002-IOUT-VDROP-SLDS233.gif
TA = 25 °C
Figure 4. Output Current vs Dropout Voltage
TPS92612 D005_SLVSFG3.gif
I(OUT) setting = 150 mA V(SUPPLY)-V(OUT) = 2 V
Figure 6. Output Current vs Temperature
TPS92612 tps92612-typical-char-pwm-200Hz.gif
Ch. 1 = SUPPLY Ch. 2 = V(PWM) Ch. 4 = I(OUT)
f(PWM) = 200 Hz Duty-cycle = 50%
Figure 8. PWM Dimming at 200 Hz
TPS92612 typ-app-led-open-circuit-slds237.gif
Ch. 1 = SUPPLY Ch. 2 = V(OUT) Ch. 4 = I(OUT)
Figure 10. LED Open-Circuit and Recovery
TPS92612 D002_SLVSFG3.gif
Figure 3. Output Current vs Current-Sense Resistor
TPS92612 D003-VDROP-TEMP-SLDS233.gif
I(OUT) setting = 150 mA
Figure 5. Output Current vs Dropout Voltage
TPS92612 D005-PWMIN-OUT-SLDS233.gif
f(PWM) = 200 Hz
Figure 7. PWM Output Duty Cycle vs Input Duty Cycle
TPS92612 tps92612-typical-char-pwm-2kHz.gif
Ch. 1 = SUPPLY Ch. 2 = V(PWM) Ch. 4 = I(OUT)
f(PWM) = 2 kHz Duty-cycle = 50%
Figure 9. PWM Dimming at 2 kHz
TPS92612 typ-app-led-short-slds237.gif
Ch. 1 = SUPPLY Ch. 2 = V(OUT) Ch. 4 = I(OUT)
Figure 11. LED Short-Circuit Protection and Recovery