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参数资料
| 型号： | MAX6397ZATA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 11/18页 |
| 文件大小： | 0K |
| 描述： | IC SW OVERVOLT PROT 8-TDFN |
| 其它有关文件： | Automotive Product Guide |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 电压 - 工作： | 72V |
| 技术： | 混合技术 |
| 功率（瓦特）： | 1.45W |
| 电路数： | 1 |
| 应用： | 通用 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 带卷 (TR) |
Overvoltage Protection Switch/Limiter
Controllers Operate Up to 72V
GATE
GATE
IN
IN
OUT
IN
IN
OUT
MAX6397
MAX6398 SET
R1
R1
MAX6397
SET MAX6398
GND
R2
R2
GND
Figure 6. Setting the MAX6397/MAX6398 Overvoltage Threshold
Q1
IN
GATE
IN
GATE
V BATT
(a)
MAX6397
MAX6398
GND
OUT
LOAD
V BATT
(b)
MAX6397
MAX6398
GND
OUT
LOAD
Figure 7. Reverse Battery Protection Using a Diode or p-Channel MOSFET
Reverse-Battery Protection
Use a diode or p-channel MOSFET to protect the
MAX6397/MAX6398 during a reverse-battery insertion
(Figures 7a, 7b). Low p-channel MOSFET on-resistance
of 30m ? or less yields a forward-voltage drop of only a
few millivolts (versus hundreds of millivolts for a diode,
Figure 7a) thus improving efficiency.
Connecting a positive battery voltage to the drain of Q1
(Figure 7b) produces forward bias in its body diode,
which clamps the source voltage one diode drop below
the drain voltage. When the source voltage exceeds
Q1’s threshold voltage, Q1 turns on. Once the FET is
on, the battery is fully connected to the system and can
deliver power to the device and the load.
An incorrectly inserted battery reverse-biases the FET’s
body diode. The gate remains at the ground potential.
The FET remains off and disconnects the reversed bat-
tery from the system. The zener diode and resistor com-
bination prevent damage to the p-channel MOSFET
during an overvoltage condition.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX6398ATT | 制造商:Maxim from Components Direct 功能描述:MAXIM MAX6398ATT VOLTAGE SUPERVISORS - Rail/Tube 制造商:Maxim 功能描述:Maxim MAX6398ATT Voltage Supervisors |
| MAX6398ATT+ | 制造商:Maxim Integrated Products 功能描述:VOLT SUPERVISOR CNTRLR 1.215V 6TDFN EP - Rail/Tube |
| MAX6398ATT+T | 功能描述:电压监测器/监控器 Over Volt Protection Switch/Limiter RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| MAX6398ATT-T | 功能描述:电压监测器/监控器 RoHS:否 制造商:Texas Instruments 监测电压数:2 监测电压:Adjustable 输出类型:Open Drain 欠电压阈值: 过电压阈值: 准确性:1 % 工作电源电压:1.5 V to 6.5 V 工作电源电流:1.8 uA 最大工作温度:+ 125 C 封装 / 箱体:SON-6 安装风格:SMD/SMT |
| MAX6399ATA | 制造商:Maxim Integrated Products 功能描述:OVERVOLTAGE PROTECTION SWITCH LIMIT - Rail/Tube 制造商:Rochester Electronics LLC 功能描述: |
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