ZHCSDS9 April   2015 TPS3779 , TPS3780

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 修订历史记录
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and 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 Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Inputs (SENSE1, SENSE2)
      2. 8.3.2 Outputs (OUT1, OUT2)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Operation (VDD ≥ VDD(min))
      2. 8.4.2 Power-On Reset (VDD < V(POR))
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Threshold Overdrive
      2. 9.1.2 Sense Resistor Divider
    2. 9.2 Typical Applications
    3. 9.3 Monitoring Two Separate Rails
      1. 9.3.1 Design Requirements
      2. 9.3.2 Detailed Design Procedure
      3. 9.3.3 Application Curve
    4. 9.4 Early Warning Detection
      1. 9.4.1 Design Requirements
      2. 9.4.2 Detailed Design Procedure
      3. 9.4.3 Application Curve
  10. 10Power-Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12器件和文档支持
    1. 12.1 器件支持
      1. 12.1.1 开发支持
        1. 12.1.1.1 评估模块
        2. 12.1.1.2 Spice 模型
      2. 12.1.2 器件命名规则
    2. 12.2 文档支持
      1. 12.2.1 相关文档
        1. 12.2.1.1 相关文档　
    3. 12.3 相关链接
    4. 12.4 商标
    5. 12.5 静电放电警告
    6. 12.6 术语表
  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

6 Pin Configuration and Functions

DRY Package
1.45-mm × 1-mm µSON
(Top View)
TPS3779 TPS3780 po_dry_sbvs250.gif
DBV Package
SOT23-6
(Top View)
TPS3779 TPS3780 po_dbv-6_sbvs250.gif

Pin Functions

PIN I/O DESCRIPTION
NAME NO.
DRY DBV
GND 2 5 — Ground
OUT1 5 2 O OUT1 is the output for SENSE1. OUT1 is asserted (driven low) when the voltage at SENSE1 falls below VIT–. OUT1 is deasserted (goes high) after SENSE1 rises higher than VIT+. OUT1 is a push-pull output for the TPS3779 and an open-drain output for the TPS3780. The open-drain device (TPS3780) can be pulled up to 6.5 V independent of VDD; a pull-up resistor is required for this device.
OUT2 4 3 O OUT2 is the output for SENSE2. OUT2 is asserted (driven low) when the voltage at SENSE2 falls below VIT–. OUT2 is deasserted (goes high) after SENSE2 rises higher than VIT+. OUT2 is a push-pull output for the TPS3779 and an open-drain output for the TPS3780. The open-drain device (TPS3780) can be pulled up to 6.5 V independent of VDD; a pull-up resistor is required for this device.
SENSE1 1 6 I This pin is connected to the voltage to be monitored with the use of an external resistor divider. When the voltage at this pin drops below the threshold voltage (VIT–), OUT1 is asserted.
SENSE2 3 4 I This pin is connected to the voltage to be monitored with the use of an external resistor divider. When the voltage at this pin drops below the threshold voltage (VIT–), OUT2 is asserted.
VDD 6 1 I Supply voltage input. Connect a 1.5-V to 6.5-V supply to VDD in order to power the device. Good analog design practice is to place a 0.1-µF ceramic capacitor close to this pin (required for VDD < 1.5 V).