参数资料
型号: NCP4350DR2G
厂商: ON Semiconductor
文件页数: 1/10页
文件大小: 0K
描述: IC SUPERVISOR DESKTOP PS 16-SOIC
标准包装: 2,500
类型: 多压监控器
监视电压数目: 4
电压 - 阀值: 3.3V,5V,12V,12V
工作温度: 0°C ~ 105°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SOIC
包装: 带卷 (TR)
NCP4350
Supervisory IC for Desktop
Power Supply Monitoring
The NCP4350 provides all the necessary functions to monitor and
control a multi-output power supply providing fault protection
shutdown signals, and On/Off control. The NCP4350 provides the
ability to monitor the status of the +5 Vdc, +12 Vdc (A and B outputs),
and +3.3 Vdc output (voltage and current). The controller has built in
delay to prevent tripping during transient conditions to eliminate false
shutdowns.
OVP/UVP (OverVoltage/UnderVoltage Protection) monitors 3.3 V,
5 V, and dual 12 V to protect the power supply, FPOB output goes high
when one of these supply voltages exceed their limits.
OCP (OverCurrent Protection) monitors 3.3 V, 5 V, and dual 12 V
SOIC-16
http://onsemi.com
MARKING DIAGRAM
NCP4350DG
AWLYWW
output current. Overcurrent limit is adjustable by I REF and current
protection resistor.
The PGI (Power Good Input) and OTP (OverTemperature
Protection) input pin provides the flexibility for design protection
circuit.
The PGO (Power Good Output) signal gives personal computer
notice when the output supplies are ready or power supply is going to
shutdown or fail, therefore it can provide a reliable power supply
D SUFFIX
CASE 751B
A
WL
Y
WW
G
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb-Free Device
environment.
Features
PIN CONNECTIONS
? Individual Overvoltage and Undervoltage Monitoring for +3.3 V,
+5 V, +12 VA, +12 VB Outputs and Lockout
PGI
GND
1
2
16
15
PGO
VCC
?
Individual Overcurrent Monitoring for +3.3 V, +5 V, +12 VA,
FPOB
3
14
VS5
?
?
?
?
?
?
?
+12 VB Outputs and Lockout
Fault Output with 5 mA of Sink Capability
Remote On/Off
Power Good Output Signal with 5 mA of Sink Capability
Built-in Delays for OVP, UVP, and Overload to avoid False Tripping
Low Power Consumption 10 mW at V CC = 5 V Typical
Overtemperature Input
Wide Power Supply Range (4 V - 16 V)
PSONB
IS12A
RI
IS12B
VS12B
4
5
6
7
8
(Top View)
13
12
11
10
9
VS33
VS12A
IS33
IS5
OTP
Typical Applications
ORDERING INFORMATION
? ATX Computers
Device
NCP4350DR2G
Package
SOIC-16
Shipping {
3000/Tape & Reel
(Pb-Free)
?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.
? Semiconductor Components Industries, LLC, 2007
September, 2007 - Rev. 0
1
Publication Order Number:
NCP4350/D
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