Datasheet > UCC3919PWTR

UCC3919PWTR

更新时间： 2024-11-09 23:39:07

品牌	Logo	应用领域
其他 - ETC		/
页数	文件大小	规格书
11页	164K
描述
Power Control/Management

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

UCC3919PWTR 数据手册

application

INFO

UCC1919

UCC2919

UCC3919

available

3V to 8V Hot Swap Power Manager

FEATURES

DESCRIPTION

• Precision Fault Threshold

The UCC3919 family of Hot Swap Power Managers provide complete

power management, hot swap, and fault handling capability. The

UCC3919 features a duty ratio current limiting technique, which pro-

vides peak load capability while limiting the average power dissipa-

tion of the external pass transistor during fault conditions. The

UCC3919 has two reset modes, selected with the TTL/CMOS com-

patible L/R pin. In one mode, when a fault occurs the IC repeatedly

tries to reset itself at a user defined rate, with user defined maximum

output current and pass transistor power dissipation. In the other

mode the output latches off and stays off until either the L/R pin is re-

set or the shutdown pin is toggled. The on board charge pump circuit

provides the necessary gate voltage for an external N-channel power

FET.

• Charge Pump for Low RDS_ONHigh Side

Drive

• Differential Sense Inputs

• Programmable Average Power Limiting

• Programmable Linear Current Control

• Programmable Fault Time

• Fault Output Indicator

• Manual and Automatic Reset Modes

• Shutdown Control w/Programmable

Softstart

• Undervoltage Lockout

• Electronic Circuit Breaker Function

BLOCK DIAGRAM

OVERLOAD

CHARGE

VDD

CSP

VDD

CAP

COMPARATOR

PUMP

–

LINEAR

CURRENT

AMPLIFIER

OVERCURRENT

COMPARATOR

DRIVER

10 GATE

–

VDD

–

CSN

50mV

UVLO

200mV

IMAX

VDD

1.5v

36µA

IBIAS

UVBIAS

SET

DOMINANT

FLT

UVBIAS

FLT

–

1.5V

0.5V

–

GND

RESET

DOMINANT

1.2µA

UDG-98123

Note: Pins shown for 14-pin package.

07/99

12 3 4 5 6 7...11

中文翻译

下载PDF

与UCC3919PWTR相关器件

型号	品牌	获取价格	描述	数据表
UCC3920DP	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, SOIC-16
UCC3921	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921D	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921D/81143	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921D/81143G4	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921DG4	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921DTR	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921DTR/81143	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921DTR/81143G4	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager
UCC3921DTRG4	TI	获取价格	Latchable Negative Floating Hot Swap Power Manager