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参数资料
| 型号： | NCP346SN1EVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 2/15页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR NCP346SN1 |
| 产品变化通告： | Product Obsolescence 21/Jan/2010 |
| 设计资源： | NCP346SN1 Demo Brd BOM NCP346SN1EVB Gerber Files NCP346SN1 Demo Brd Schematic |
| 标准包装： | 1 |
| 主要目的： | 过压防护 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | NCP346 |
| 已供物品： | 板 |
| 其它名称： | NCP346SN1EVBOS |
NCP346
V CC
(5)
IN
(4)
V CC
V5
Pre?regulator
R1
?
+
COMP
LOGIC
BLOCK
V CC
ON/OFF OUT
DRIVER
OUT
(1)
R2
Bandgap
Reference
CNTRL
(3)
GND
(2)
Figure 2. Detailed Block Diagram
PIN FUNCTION DESCRIPTIONS
Pin #
1
2
3
4
5
Symbol
OUT
GND
CNTRL
IN
V CC
Pin Description
This signal drives the gate of a P?channel MOSFET. It is controlled by the voltage level on IN or the logic state of
the CNTRL input. When an overvoltage event is detected, the OUT pin is driven to within 1.0 V of V CC in less
than 1.0 m sec provided that gate and stray capacitance is less than 12 nF.
Circuit Ground
This logic signal is used to control the state of OUT and turn?on/off the P?channel MOSFET. A logic High results
in the OUT signal being driven to within 1.0 V of V CC which disconnects the FET. The input is tied Low via an
internal 50 k W pull?down resistor. It is recommended that the input be connected to GND if it is not used.
This pin senses an external voltage point. If the voltage on this input rises above the overvoltage threshold (V th ),
the OUT pin will be driven to within 1.0 V of V CC , thus disconnecting the FET. The nominal threshold level can be
increased with the addition of an external resistor divider between IN, V CC , and GND.
Positive Voltage supply. OUT is guaranteed to be in low state (MOSFET ON) as long as V CC remains above
2.5 V, and below the overvoltage threshold.
TRUTH TABLE
IN
<V th
<V th
>V th
>V th
CNTRL
L
H
L
H
OUT
GND
V CC
V CC
V CC
http://onsemi.com
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| NCP346SN1T1G | 功能描述:监控电路 4.45V Overvoltage Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| NCP346SN2T1G | 功能描述:监控电路 5.5V Overvoltage Supervisor RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟（典型值）:10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel |
| NCP347AE AV51D WAF | 制造商:ON Semiconductor 功能描述: |
| NCP347AI BB58A WAF | 制造商:ON Semiconductor 功能描述: |
| NCP347MTAETBG | 功能描述:电池管理 OVER VLTG PROTECTION RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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