UCC3915

更新时间： 2024-11-19 22:52:39

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
5页	70K
描述
15V 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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UCC3915 数据手册

UCC2915

UCC3915

15V Programmable Hot Swap Power Manager

FEATURES

DESCRIPTION

• Integrated 0.15 Ohm Power

MOSFET

The UCC3915 Programmable Hot Swap Power Manager provides com-

plete power management, hot swap capability, and circuit breaker functions.

The only external component required to operate the device, other than

power supply bypassing, is the fault timing capacitor, C_T. All control and

housekeeping functions are integrated, and externally programmable.

These include the fault current level, maximum output sourcing current,

maximum fault time, and startup delay. In the event of a constant fault, the

Internal fixed 2% duty cycle ratio limits average output power.

• 7V to 15V Operation

• Digital Programmable Current Limit

from 0A to 3A

• 100 A I_CCwhen Disabled

• Programmable ON Time

• Programmable Start Delay

• Fixed 2% Duty Cycle

• Thermal Shutdown

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

sourcing current to 1A above the trip level or to a full 4A of output current

for fast output capacitor charging.

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 CT.

Once CT charges to a preset threshold, the switch is turned OFF, and re-

mains OFF for 50 times the programmed fault time. When the output cur-

rent 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 and TSSOP, Low

Thermal Resistance Packaging

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

ON TIME

CONTROL

CURRENT FAULT

LEVEL 0–3 AMPS

VOUT

2% DUTY

CYCLE

0–3A

THERMAL

1.5V

SHUTDOWN

0.25

RES

–

INTERNAL

BIAS

SHTDWN

FAULT

* BODY DIODE

HEAT SINK

GND PINS

GND

4 BIT DAC

Note: Pin numbers refer to DIL-16 and SOIC-16 packages.

UDG-99174

SLUS198A - FEBRUARY 2000

12 3 4 5

中文翻译

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UCC3915 替代型号

型号	品牌	替代类型	描述	数据表
UCC2915	TI	功能相似	15-V PROGRAMMABLE HOT SWAP POWER MANAGER

与UCC3915相关器件

型号	品牌	获取价格	描述	数据表
UCC39151	TI	获取价格	15V Programmable Hot Swap Power Manager
UCC39151DP	ETC	获取价格	Power Control/Management
UCC39151DPG4	TI	获取价格	0-3A, 7-15V Single Hot-Swap IC Hi-Side MOSFET, 20mA IQ in Sleep Mode, Comm. Temp. 16-SOIC
UCC39151DPTR	ETC	获取价格	Power Control/Management
UCC39151DPTRG4	TI	获取价格	IC,POWER CONTROL/MANAGEMENT,BICMOS,SOP,16PIN,PLASTIC
UCC39151N	ETC	获取价格	Power Control/Management
UCC39151NG4	TI	获取价格	IC,POWER CONTROL/MANAGEMENT,BICMOS,DIP,16PIN,PLASTIC
UCC39151PWP	ETC	获取价格	Power Control/Management
UCC39151PWPTR	ETC	获取价格	Power Control/Management
UCC39151PWPTRG4	TI	获取价格	0-3A, 7-15V Single Hot-Swap IC Hi-Side MOSFET, 20mA IQ in Sleep Mode, Comm. Temp. 24-TSSOP

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