Datasheet


SLVS612 − APRIL 2006
4
www.ti.com
ELECTRICAL CHARACTERISTICS
T
A
= −40°C to 85°C, V
IN
= 12 V
dc
, R
T
= 90.9 kΩ, f
SW
= 500 kHz, V
EA_REF
= 1.25 V all parameters at zero power dissipation (unless
otherwise noted)
PARAMETER
TEST CONDITIONS MIN TYP MAX UNIT
CURRENT LIMIT
I
SINK
Current limit sink current 8 10 12 µA
Propagation delay to output
V
ILIM
= 11.7 V, V
SW
= (V
ILIM
− 0.5 V) 300
Propagation delay to output
V
ILIM
= 11.7 V, V
SW
= (V
ILIM
− 2 V)
250
ns
t
ON
Switch leading-edge blanking pulse time
(1)
100
ns
t
OFF
Off time during a fault 7 cycles
V
ILIM
= 11.6 V, T
A
= 25°C −100 −70 −40
V
OS
Offset voltage SW vs. ILIM
V
ILIM
= 11.6 V, 0°C ≤ T
A
≤ 85°C
−125 −30
mV
V
OS
Offset voltage SW vs. ILIM
V
ILIM
= 11.6 V, −40°C ≤ T
A
≤ 85°C −125 −15
mV
OUTPUT DRIVER
t
LRISE
Low-side driver rise time
C
LOAD
= 2200 pF
48 96
t
LFALL
Low-side driver fall time
C
LOAD
= 2200 pF
24 48
ns
t
HRISE
High-side driver rise time
C
LOAD
= 2200 pF, (HDRV − SW)
48 96
ns
t
HFALL
High-side driver fall time
C
LOAD
= 2200 pF, (HDRV − SW)
36 72
V
OH
High-level ouput voltage, HDRV I
HDRV =
−0.1 A (HDRV − SW)
BOOST
−1.5 V
BOOST
−1.0 V
V
OL
Low-level ouput voltage, HDRV I
HDRV =
0.1 A (HDRV − SW) 0.75
V
V
OH
High-level ouput voltage, LDRV I
LDRV =
−0.1 A
BP10
−1.4 V
BP10
− 1.0 V
V
V
OL
Low-level ouput voltage, LDRV I
LDRV =
0.1 A 0.5
Minimum controllable pulse width
(1)
100 150 ns
SS/SD SHUTDOWN
V
SD
Shutdown threshold voltage Outputs off 90 125 165
mV
V
EN
Device active threshold voltage 165 210 260
mV
BOOST REGULATOR
V
BOOST
Output voltage V
IN
= 12.0 V 19 20 21 V
SW NODE
I
LEAK
Leakage current
(1)
25 µA
THERMAL SHUTDOWN
T
SD
Shutdown temperature
(1)
165
°C
T
SD
Hysteresis
(1)
20
°C
UVLO
Input voltage UVLO threshold 8.20 8.75 9.25
V
Input voltage UVLO hysteresis 1.0
V
(1)
Ensured by design. Not production tested.