UCC3915DP Datasheet, PDF (4/15 Pages) Texas Instruments – 15-V PROGRAMMABLE HOT SWAP POWER MANAGER

UCC2915, UCC3915
ą
15ĆV PROGRAMMABLE HOT SWAP POWER MANAGER
SLUS198C – FEBUARY 2000 - REVISED - JUNE 2001
electrical characteristics, these specifications apply for T_A = –40°C to 85°C for the UCC2915 and
0°C to 70°C for the UCC3915, VIN = 12 V, IMAX = 0.4 V, SHTDWN = 2.4 V, T_A = T_J, (unless otherwise
stated)
DAC (continued)
PARAMETER
TEST CONDITIONS
MIN
Code = 1110
2.30
Trip current
Code = 1111
2.50
Max output current over trip
(current source mode)
Code = 0100 to 1111,
IMAX = 0 V
0.35
Max output current
(current source mode)
Code = 0100 to 1111,
IMAX = 2.4 V
3.0
NOTE 1: All voltages are with respect to GND. Current is positive into and negative out of the specified terminal.
TYP
2.75
3.0
MAX
3.25
3.50
UNITS
A
A
1.0 1.65 A
4.0 5.2 A
fault timer
PARAMETER
TEST CONDITIONS
MIN
CT charge current
CT discharge current
Output duty cycle
CT fault threshold
VCT = 1.0 V
VCT = 1.0 V
VOUT = 0 V
–83
0.8
1.0%
1.2
CT reset threshold
0.4
NOTE 1: All voltages are with respect to GND. Current is positive into and negative out of the specified terminal.
TYP
–62
1.2
1.9%
1.5
0.5
MAX
–47
1.8
3.3%
1.7
0.6
UNITS
µA
µA
V
V
shutdown
PARAMETER
TEST CONDITIONS
MIN
Shutdown threshold
1.1
Shutdown hysteresis
Input current
NOTE 1: All voltages are with respect to GND. Current is positive into and negative out of the specified terminal.
TYP
1.5
150
100
MAX
1.9
500
UNITS
V
mV
nA
open drain output (FAULT)
PARAMETER
TEST CONDITIONS
MIN
High level output current
FAULT = 5 V
Low level output voltage
IOUT = 5 mA
NOTE 1: All voltages are with respect to GND. Current is positive into and negative out of the specified terminal.
TYP
0.2
MAX
250
0.8
UNITS
µA
V
TTL input dc characteristics
PARAMETER
TEST CONDITIONS
MIN
TTL input voltage high
2.0
TTL input voltage low
TTL input high current
VIH = 2.4 V
TTL input low current
VIL = 0.4 V
NOTE 1: All voltages are with respect to GND. Current is positive into and negative out of the specified terminal.
TYP MAX
0.8
3
10
1
UNITS
V
V
µA
µA
4
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