U4793B-MFPG3

更新时间： 2024-11-02 13:15:07

品牌	Logo	应用领域
爱特美尔 - ATMEL		电源电路电源管理电路光电二极管监控异步传输模式 ATM
页数	文件大小	规格书
8页	178K
描述
Automotive Analog Circuit, BIPolar, PDSO8

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U4793B-MFPG3 技术参数

Features

•

10 kV – ESD Protection

Two Comparators with Common Reference

Tight Threshold Tolerance

Constant Threshold

NPN Output

Interference and Damage-protection According to VDE 0839 and

ISO/CD 7637 EMI Protection

Reversal Polarity Protection

Load-dump Protection

Current Monitor

•

U4793B

1. Description

The bipolar U4793B is designed to monitor overload or a short circuit in automotive or

industrial applications. The threshold is tied to V_4,6= V_S– V_Twhere V_T= 44.5 mV. It is

independent of the supply voltage, V_S.If the voltage drop across shunt resistor, R_sh,

exceeds this value, the output is turned on, otherwise the output is turned off.

Without supply voltage or open input pin 8, the output is turned off. The output break-

down voltage is determined by the Z-diodes Z₃and Z₅with a typical value of V_Z= 22V.

An unused comparator input must be connected to pin 7.

2. Block Diagram

Figure 2-1. Schematic and Application Circuit

Batt

OUT1

0.6 V

OUT2

Load

150 Ω

Rev. 4557B–AUTO–09/05

12 3 4 5 6 7 8

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