UCC39151_11 Datasheet, PDF (1/8 Pages) Texas Instruments – 15-V PROGRAMMABLE HOT AWAP POWER MANAGER

UCC39151
SLUS184A – FEBRUARY 1999 – REVISED OCTOBER 2001
15ĆV PROGRAMMABLE
HOT SWAP POWER MANAGER
FEATURES
D Integrated 0.15-Ω Power MOSFET
D 7-V to 15-V Operation
D Digital Programmable Current Limit
from 0 A to 3 A
D Programmable On-Time
D Programmable Start Delay
D Fixed 2% Duty Cycle
D Thermal Shutdown
D Fault Output Indicator
D Power SOIC and TSSOP, Low Thermal-
Resistance Packaging
DESCRIPTION
The UCC39151 programmable hot swap power
manager provides complete 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 start-up delay. In the
event of a constant fault, the internal fixed 2% duty
cycle ratio limits average output power.
The internal 4-bit DAC allows programming of the
fault level current from 0 A to 3 A with 0.25 A
resolution. The IMAX control pin sets the
maximum sourcing current to 1 A above the trip
level or to a full 4 A of output current for fast output
capacitor charging.
TYPICAL APPLICATION
HEATSINK GROUND PINS
VIN
CIN
D1
2 VIN
3 VIN
4
GND
12
GND
13
GND
5
GND
VOUT 14
VOUT 15
R1 LED
+5V
16 FAULT
UCC39151 (16-Pin Package)
SHTDWN 1
11 CT
B0
B1
B2
B3
IMAX
CT
9
8
7
6
10
S1
S2
S3
S4
S5
RL
C _OUT
RSD
VIN
S6
CSD
}VIN
DIP SWITCH
UDG–98176
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semiconductor products and disclaimers thereto appears at the end of this data sheet.
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.
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Copyright  2001, Texas Instruments Incorporated
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