UCC3912DPTRG4

更新时间： 2024-11-20 04:09:31

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
6页	151K
描述
Programmable Hot Swap Power Manager

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中文翻译

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替代型号

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UCC3912DPTRG4 数据手册

application

INFO

UCC3912

available

Programmable Hot Swap Power Manager

FEATURES

DESCRIPTION

• Integrated 0.15Ω Power MOSFET

The UCC3912 Hot Swap Power Manager provides complete power man-

agement, hot swap capability, and circuit breaker functions. The only com-

ponent required to operate the device, other than supply bypassing, is the

fault timing capacitor, C_T. All control and housekeeping functions are inte-

grated, and externally programmable. These include the fault current level,

maximum output sourcing current, maximum fault time,and start-up delay.

In the event of a constant fault, the Internal fixed 3% duty cycle ratio limits

average output power.

• 3V to 8V Operation

• Digital Programmable Current Limit

from 0 to 3A

• Electronic Circuit Breaker Function

• 1µA I_CCwhen Disabled

• Programmable on Time

• Programmable Start Delay

• Fixed 3% Duty Cycle

The internal 4 bit DAC allows programming of the fault level current from 0

to 3A with 0.25A resolution. The IMAX control pin sets the maximum sour-

cing current to 1A above the fault level when driven low, and to a full 4A

when driven high for applications which require fast output capacitor charg-

ing.

• Uni-Directional Switch

• Thermal Shutdown

When the output current is below the fault level, the output MOSFET is

switched on with a nominal on resistance of 0.15 . When the output cur-

rent exceeds the fault level, but is less than the maximum sourcing level,

the output remains switched on, but the fault timer starts charging C_T.

Once C_Tcharges to a preset threshold, the switch is turned off, and re-

mains off for 30 times the programmed fault time. When the output current

reaches the maximum sourcing level, the MOSFET transitions from a

switch to a constant current source.

• Fault Output Indicator

• Maximum Output Current can be set

to 1A above the Programmed Fault

Level or to a full 4A

• Power SOIC, Low Thermal

Resistance Packaging

(continued)

BLOCK DIAGRAM

REVERSE VOLTAGE

30mV

COMPARATOR

VIN

CHARGE

PUMP

H = 4A

IMAX 10

OUT

MAX

CURRENT

LEVEL

CURRENT SENSE

H = OPEN

POWER

FET

LINEAR CURRENT

AMPLIFIER

ABOVE

FAULT

OVER CURRENT

COMPARATOR

VOUT

ON TIME

CONTROL

CURRENT FAULT

LEVEL 0–3 AMPS

3% DUTY

CYCLE

THERMAL

SHUTDOWN

1.5V

0–3A

–

0.25

RES

INTERNAL

BIAS

SHTDWN

HEAT SINK

GND PINS

GND

FAULT

UDG-99146

4 BIT DAC

SLUS241A - NOVEMBER 1999

12 3 4 5 6

中文翻译

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UCC3912DPTRG4 替代型号

型号	品牌	替代类型	描述	数据表
UCC3912DPTR	TI	完全替代	Programmable Hot Swap Power Manager
UCC3912DPG4	TI	完全替代	Programmable Hot Swap Power Manager
UCC3912DP	TI	完全替代	Programmable Hot Swap Power Manager

与UCC3912DPTRG4相关器件

型号	品牌	获取价格	描述	数据表
UCC3912N	TI	获取价格	Programmable Hot Swap Power Manager
UCC3912NG4	TI	获取价格	IC,POWER CONTROL/MANAGEMENT,BICMOS,DIP,16PIN,PLASTIC
UCC3912PWP	TI	获取价格	Programmable Hot Swap Power Manager
UCC3912PWP	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO24, GREEN, PLASTIC, TSSOP-24
UCC3912PWPG4	TI	获取价格	Programmable Hot Swap Power Manager
UCC3912PWPTR	TI	获取价格	Programmable Hot Swap Power Manager
UCC3912PWPTRG4	TI	获取价格	Programmable Hot Swap Power Manager
UCC3913	TI	获取价格	Negative Voltage Hot Swap Power Manager
UCC3913D	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, GREEN, PLASTIC, MS-012AA, SOIC-8
UCC3913D	TI	获取价格	NEGATIVE VOLTAGE HOT SWAP POWER MANAGER

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