ZHCSK23A July   2019  – September 2019 TPS3870-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1.     Device Images
      1.      集成过压检测
      2.      典型过压精度分布
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 VDD
      2. 8.3.2 SENSE
      3. 8.3.3 RESET
      4. 8.3.4 Capacitor Time (CT)
      5. 8.3.5 Manual Reset (MR)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD > VDD(MIN))
      2. 8.4.2 Undervoltage Lockout (VPOR < VDD < UVLO)
      3. 8.4.3 Power-On Reset (VDD < VPOR)
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Voltage Threshold Accuracy
      2. 9.1.2 CT Reset Time Delay
        1. 9.1.2.1 Factory-Programmed Reset Delay Timing
        2. 9.1.2.2 Programmable Reset Delay-Timing
      3. 9.1.3 RESET Latch Mode
      4. 9.1.4 Adjustable Voltage Thresholds
      5. 9.1.5 Immunity to SENSE Pin Voltage Transients
        1. 9.1.5.1 Hysteresis
    2. 9.2 Typical Application
      1. 9.2.1 Design 1: RESET Latch Mode
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curves
  10. 10Power Supply Recommendations
    1. 10.1 Power Supply Guidelines
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件命名规则
    2. 12.2 文档支持
      1. 12.2.1 评估模块
    3. 12.3 接收文档更新通知
    4. 12.4 支持资源
    5. 12.5 商标
    6. 12.6 静电放电警告
    7. 12.7 Glossary
  13. 13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

7.5 Electrical Characteristics

At 1.7 V ≤ VDD ≤ 5.5 V, CT = MR =  Open, RESET Voltage (VRESET) = 10 kΩ to VDD, RESET load = 10 pF, and over the operating free-air temperature range of – 40°C to 125°C, unless otherwise noted. Typical values are at TJ = 25°C, typical conditions at VDD = 3.3 V.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
VDD Supply Voltage 1.7 5.5 V
UVLO Under Voltage Lockout(3) VDD falling below 1.7 V 1.2 1.7 V
VPOR Power on reset voltage(2) VOL(max) = 0.25 V, IOUT = 15 µA 1 V
VIT+(OV) Positive- going threshold accuracy -0.7 ±0.25 0.7 %
VHYS Hysteresis Voltage(1) 0.3 0.55 0.8 %
IDD Supply current VDD ≤ 5.5 V 4.5 7 µA
ISENSE Input current, SENSE pin VSENSE = 5 V 1 1.5 µA
VOL Low level output voltage VDD = 1.7 V, IOUT = 0.4 mA 250 mV
VDD = 2 V, IOUT = 3 mA 250 mV
VDD = 5 V, IOUT = 5 mA 250 mV
ILKG Open drain output leakage current VDD = VRESET  = 5.5 V 300 nA
VMR_L MR logic low input 0.3 V
VMR_H MR logic high input 1.4 V
VCT_H High level CT pin voltage 1.4 V
RMR Manual reset Internal pullup resistance 100 KΩ
ICT CT pin charge current 337 375 413 nA
VCT CT pin comparator threshold voltage(4) 1.133 1.15 1.167 V
(1) Hysteresis is with respect of the trip point (VIT+(OV))
(2) VPOR is the minimum VDD voltage level for a controlled output state.
(3) RESET pin is driven low when VDD falls below UVLO.
(4) VCT voltage refers to the comparator threshold voltage that measures the voltage level of the external capacitor at CT pin.