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参数资料
| 型号： | NCP346SN1EVB |
| 厂商： | ON Semiconductor |
| 文件页数： | 1/15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
Overvoltage Protection IC
The NCP346 Overvoltage Protection circuit (OVP) protects
sensitive electronic circuitry from overvoltage transients and power
supply faults when used in conjunction with an external P?channel
FET. The device is designed to sense an overvoltage condition and
quickly disconnect the input voltage supply from the load before any
damage can occur. The OVP consists of a precise voltage reference, a
comparator with hysteresis, control logic, and a MOSFET gate driver.
http://onsemi.com
The OVP is designed on a robust BiCMOS process and is intended to
withstand voltage transients up to 30 V.
The device is optimized for applications that have an external
5
1
THIN SOT?23?5
SN SUFFIX
CASE 483
AC/DC adapter or car accessory charger to power the product and/or
recharge the internal batteries. The nominal overvoltage thresholds are
4.45 and 5.5 V and can be adjusted upward with a resistor divider
PIN CONNECTIONS &
MARKING DIAGRAM
between the V CC , IN, and GND pins. It is suitable for single cell
OUT 1
5
V CC
Li?Ion applications as well as 3/4 cell NiCD/NiMH applications.
GND
2
Features
? Overvoltage Turn?Off Time of Less Than 1.0 m sec
? Accurate Voltage Threshold of 4.45 V and 5.5 V (Nominal)
? CNTRL Input Compatible with 1.8 V Logic Levels
? These are Pb?Free Devices
Typical Applications
? Cellular Phones
? Digital Cameras
? Portable Computers and PDAs
? Portable CD and other Consumer Electronics
CNTRL 3 4 IN
(Top View)
xxx = SQZ for NCP346SN1
= SRD for NCP346SN2
A = Asembly Location
Y = Year
W = Work Week
G = Pb?Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device Package Shipping ?
NCP346SN1T1G SOT?23?5
3000 / Tape & Reel
NCP346SN2T1G
(Pb?Free)
(7 inch Reel)
?For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
Schottky
AC/DC Adapter or
Accessory Charger
(optional)
IN
V CC
P?CH
Diode
(optional)
+
?
Logic
FET
Driver
OUT
+
C1
LOAD
V ref
NCP346
GND
CNTRL
Microprocessor port
Note: This device contains 89 active transistors
Figure 1. Simplified Application Diagram
? Semiconductor Components Industries, LLC, 2006
September, 2006 ? Rev. 6
1
Publication Order Number:
NCP346/D
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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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