ZHCS624E december   2011  – april 2021 BQ2946

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Device Options
  7. 6 Pin Configuration and Functions
  8. 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 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Sense Positive Input for V1
      2. 8.3.2 Output Drive, OUT
      3. 8.3.3 Supply Input, VDD
      4. 8.3.4 Thermal Pad, PWRPAD
    4. 8.4 Device Functional Modes
      1. 8.4.1 NORMAL Mode
      2. 8.4.2 OVERVOLTAGE Mode
      3. 8.4.3 Customer Test Mode
  10.   Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Application Configuration
      2. 9.1.2 30
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
    3. 9.3 System Example
  11.   Power Supply Recommendations
  12. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  13. 10Device and Documentation Support
    1. 10.1 第三方产品免责声明
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  14.   Mechanical, Packaging, and Orderable Information

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机械数据 (封装 | 引脚)
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订购信息

7.5 Electrical Characteristics

Typical values stated where TA = 25°C and VDD = 4  V, MIN/MAX values stated where TA = –40°C to +110°C and VDD = 4 V (unless otherwise noted)
TEST NO.PARAMETERTEST CONDITIONSMINTYPMAXUNIT
VOLTAGE PROTECTION THRESHOLD VCx
1.0VOVV(PROTECT) – Overvoltage DetectionBQ294602, fixed delay 4 s, V1 > VOV4.35V
1.1BQ294604, fixed delay 6.5 s, V1 > VOV4.35
1.2BQ294622, fixed delay 4 s, V1 > VOV(2)4.45
1.3BQ294624, fixed delay 6.5 s, V1 > VOV4.45
1.4BQ294682, fixed delay 4 s, V1 > VOV4.225
1.5BQ294684, fixed delay 6.5 s, V1 > VOV (2)4.225
1.6VHYSOvervoltage Detection Hysteresis250300400V
1.7VOAOV Detection AccuracyTA = 25°C–1010mV
1.8VOA –DRIFTOV Detection Accuracy due to TemperatureTA = –40°C
TA = 0°C
TA = 60°C
TA = 110°C		–40
–20
–24
–54		44
20
24
54		mV
SUPPLY AND LEAKAGE CURRENT
1.9ICCSupply Current(V1–VSS) = 4.0 V (see Figure 8-3 for reference)12µA
(V1–VSS) = 2.8 V with TA = –40°C to +60°C1.25
1.10IINInput Current at V1 PinsMeasured at V1 = 4.0 V
(V1–VSS) = 4.0 V
TA = 0°C to 60°C (see Figure 8-3 for reference)		–0.10.1µA
OUTPUT DRIVE OUT
1.11VOUTOutput Drive Voltage(V1–VSS) > VOV
VDD = V1, IOH = 100 µA, TA = –40°C to +110°C
3VDD – 0.3V
1.12
1.13(V1–VSS) < VOV, IOL = 100 µA, TA = 25°C
TA = –40°C to +110°C
250


400		mV
1.14IOUT(Short)OUT Short Circuit CurrentOUT = 0 V, (V1–VSS) > VOV1.53mA
1.15tROutput Rise TimeCL = 1 nF, VOH(OUT) = 0 V to 5 V(1)5µs
1.16ZOOutput Impedance25kΩ
FIXED DELAY TIMER
1.17tDELAYFault Detection Delay TimeFixed Delay, BQ2946x23.244.8s
Fixed Delay, BQ2946x45.26.57.8
1.18tDELAY_CTMFault Detection Delay Time in Test ModeFixed Delay (Internal settings)15ms
(1) Specified by design. Not 100% tested in production.
(2) Product Preview only.