Datasheet

UCC25600
SLUS846B –SEPTEMBER 2008– REVISED JULY 2011 www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range, −40°C < T
A
< 125°C, T
J
= T
A
, VCC = 12 V, GND = 0 V, R
RT
= 4.7 kΩ, R
DT
= 16.9
kΩ, C
VCC
= 1 μF, (unless otherwise noted)
SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Peak Current Limit
Level 1 over current threshold – V
OC
V
OC1(off)
0.9 1 1.1
rising
Level 2 over current latch
V
OC2(off)
1.8 2.0 2.2 V
threshold – V
OC
rising
Level 1 over current threshold – V
OC
V
OC1(on)
0.5 0.6 0.7
falling
T
d_OC
Propagation delay 60 200 500 ns
I
OC
OC bias current V
OC
= 0.8 V -200 200 nA
Gate Drive
GD1, GD2 output voltage high I
GD1
, I
GD2
= −20 mA 9 11 V
GD1, GD2 on resistance high I
GD1
, I
GD2
= −20 mA 12 30 Ω
GD1, GD2 output voltage low I
GD1
, I
GD2
= 20 mA 0.08 0.2 V
GD1, GD2 on resistance low I
GD1
, I
GD2
= 20 mA 4 10 Ω
Rise time GDx 1 V to 9 V, C
LOAD
= 1 nF 18 35
ns
Fall time GDx 9 V to 1 V, C
LOAD
= 1 nF 12 25
GD1, GD2 output voltage during
VCC = 6 V, I
GD1
, I
GD2
= 1.2 mA 0.5 1.75 V
UVLO
Thermal Shutdown
Thermal shutdown threshold 160
°C
Thermal shutdown recovery
140
threshold
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