JAJSM04A june   2021  – march 2023 INA254

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Device Comparison
  6. 6 Pin Configuration and Functions
  7. 7 仕様
    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 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 Integrated Shunt Resistor
      2. 8.3.2 Short-Circuit Duration
      3. 8.3.3 Temperature Stability
      4. 8.3.4 Enhanced PWM Rejection Operation
      5. 8.3.5 Input Signal Bandwidth
    4. 8.4 Device Functional Modes
      1. 8.4.1 Adjusting the Output Midpoint With the Reference Pins
      2. 8.4.2 Reference Pin Connections for Unidirectional Current Measurements
      3. 8.4.3 Ground Referenced Output
      4. 8.4.4 Reference Pin Connections for Bidirectional Current Measurements
        1. 8.4.4.1 Output Set to External Reference Voltage
      5. 8.4.5 Output Set to Mid-Supply Voltage
      6. 8.4.6 Output Set to Mid-External Reference
      7. 8.4.7 Output Set Using Resistor Divider
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Input Filtering
    2. 9.2 Typical Applications
      1. 9.2.1 Speaker Enhancements and Diagnostics Using Current Sense Amplifier
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
        3. 9.2.1.3 Application Curve
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Device Support
      1. 10.1.1 Development Support
    2. 10.2 Documentation Support
      1. 10.2.1 Related Documentation
    3. 10.3 ドキュメントの更新通知を受け取る方法
    4. 10.4 サポート・リソース
    5. 10.5 Trademarks
    6. 10.6 静電気放電に関する注意事項
    7. 10.7 用語集
  11. 11Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

6 Pin Configuration and Functions


GUID-20210602-CA0I-8SV5-K5C4-GVCMKSLTXGGV-low.svg
Figure 6-1 PWA Package24-Pin HTSSOPTop View
Table 6-1 Pin Functions
PIN TYPE DESCRIPTION
NAME NO.
DNC 4, 9, 16, 21 — Do not connect this pin to any potential; leave this pin floating
GND 10 Ground Device ground connection
IN+ 17 Analog input Positive input to internal amplifier. Connect to SH+ or external filter network.
IN– 8 Analog input Negative input to internal amplifier. Connect to SH– or external filter network.
IS+ 2, 3, 22, 23, 25 Analog input Positive connection to internal shunt resistor. Connect to supply for high-side sensing or load ground for low-side sensing.
IS– 5, 6, 19, 20, 26 Analog input Negative connection to internal shunt resistor. Connect to load for high-side sensing or system ground for low-side sensing.

NC

1, 24

 — No internal connection. Can be left floating, connected to ground or supply. Connecting to IS+ simplifies high current connections to the shunt.
OUT 14 Analog output Current sense amplifier output.
REF1 13 Analog input Reference voltage 1. Connect to any voltage between 0 V and VS to support bidirectional or unidirectional operation.
REF2 12 Analog input Reference voltage 2. Connect to any voltage between 0 V and VS to support bidirectional or unidirectional operation.
RES 15 — Reserved pin. Connect to GND.
SH+ 18 Analog output Internal shunt positive sense connection. Connect to IN+ or external filter network.
SH– 7 Analog output Internal shunt negative sense connection. Connect to IN– or external filter network.
VS 11 Power Device power supply connection, 2.7 V to 5.5 V.