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參數(shù)資料
| 型號： | UCC1919 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 3V to 8V Hot Swap Power Manager |
| 中文描述： | 3V至8V的熱插拔電源管理器 |
| 文件頁數(shù)： | 1/11頁 |
| 文件大?。?/td> | 127K |
| 代理商： | UCC1919 |
UCC1919
UCC2919
UCC3919
07/99
FEATURES
Precision Fault Threshold
Charge Pump for Low RDS
ON
High 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
3V to 8V Hot Swap Power Manager
10
7
5
6
11
8
9
2
1
12
14
4
GND
CHARGE
PUMP
DRIVER
UVLO
VDD
+
–
UVLO
+
–
+
+
–
200mV
LINEAR
CURRENT
AMPLIFIER
OVERLOAD
COMPARATOR
S
R
Q
Q
RESET
DOMINANT
SET
DOMINANT
+
–
+
–
1.5V
0.5V
1.2
μ
A
+
+
1.5v
13
VDD
36
μ
A
50mV
VDD
CSP
CSN
IMAX
IBIAS
PL
CT
FLT
GATE
CAP
LR
SD
UVBIAS
VDD
1X
OVERCURRENT
COMPARATOR
UVBIAS
S
R
Q
Q
S
R
Q
Q
FLT
SD
FLT
SD
1X
BLOCK DIAGRAM
UDG-98123
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 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.
Note: Pins shown for 14-pin package.
application
INFO
available
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相關(guān)代理商/技術(shù)參數(shù) |
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| UCC1919J | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Power Control/Management |
| UCC1921 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:Latchable Negative Floating Hot Swap Power Manager |
| UCC1921J | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| UCC1926 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:【 20A Integrated Current Sensor |
| UCC1926DS | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
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