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| 型号： | UCC2919DTR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 电源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16 |
| 封装： | GREEN, PLASTIC, MS-012AC, SOIC-16 |
| 文件页数： | 1/27页 |
| 文件大小： | 701K |
| 代理商： | UCC2919DTR |
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UCC2919
UCC3919
SLUS374C JULY 1999 REVISED NOVEMBER 2005
3V TO 8V HOT SWAP POWER MANAGER
1
www.ti.com
FEATURES
D Precision Fault Threshold
D Charge Pump for Low RDS(on) High Side
Drive
D Differential Sense Inputs
D Programmable Average Power Limiting
D Programmable Linear Current Control
D Programmable Fault Time
D Fault Output Indicator
D Manual and Automatic Reset Modes
D Shutdown Control With Programmable
Softstart
D Undervoltage Lockout
D Electronic Circuit Breaker Function
DESCRIPTION
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 provides peak load capability
while limiting the average power dissipation of the
external pass transistor during fault conditions.
The UCC3919 has two reset modes, selected with
the TTL/CMOS compatible 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
reset or the shutdown pin is toggled. The on board
charge pump circuit provides the necessary gate
voltage for an external N-channel power FET.
TYPICAL APPLICATION DIAGRAM
UDG01068
+
VDD
GND
LINEAR
CURRENT AMP
TIMER
CT
CAP
RS
IBIAS
IMAX
CSN
GATE
FROM
SUPPLY
3 V TO 8 V
TO LOAD
CSP
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
2001 2005, Texas Instruments Incorporated
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| UCC2919DTRG4 | 功能描述:热插拔功率分布 3-8V Single Industral Temp. RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| UCC2919PW | 功能描述:热插拔功率分布 3-8V Single Industral Temp. RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| UCC2919PWG4 | 功能描述:热插拔功率分布 3-8V Sgl Hot-Swap IC Industrial Temp. RoHS:否 制造商:Texas Instruments 产品:Controllers & Switches 电流限制: 电源电压-最大:7 V 电源电压-最小:- 0.3 V 工作温度范围: 功率耗散: 安装风格:SMD/SMT 封装 / 箱体:MSOP-8 封装:Tube |
| UCC2920DP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| UCC2921 WAF | 制造商:Texas Instruments 功能描述: |
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