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SLUS890 – DECEMBER 2008
ELECTRICAL CHARACTERISTICS (continued)
over operating free-air temperature range, VIN = 12 V (unless otherwise noted)
PARAMETER
PROTECTION: CURRENT SENSE
I
TRIP
TC
ITRIP
V
OCLoff
V
OCL(max)
V
ZC
V
TRIP
V
OVP
T
OVPDEL
V
UVP
T
UVPDEL
T
UVPEN
TRIPx source current
TRIPx current temperature
coefficient
OCP comparator offset
Maximum OCL setting
Zero cross detection
comparator offset
Current limit threshold
OVP trip threshold
OVP prop delay
Output UVP trip threshold
Output UVP prop delay
Output UVP enable delay
Wake up
Hysteresis
Shutdown
(2)
CONDITIONS
V
TRIPx
= 920 mV, T
A
= 25°C
On the basis of 25°C
((V
TRIPx-GND
/9)-24 mV -V
GND-LLx
) voltage,
V
TRIPx-GND
= 920 mV
V
TRIPx
= 5 V
V
GND-LLx
voltage
V
TRIPx-GND
voltage
OVP detect
UVP detect
Hysteresis
(2)
MIN
9.4
TYP
10
4500
-8
0
205
0
MAX
10.6
UNIT
µA
ppm/°C
8
185
-5
0.515
110%
55%
20
1.4
4.1
0.38
225
5
2
mV
V
PROTECTION: UNDERVOLTAGE AND OVERVOLTAGE PROTECTION
115%
2
60%
10%
32
2
4.2
0.43
VO2-1
(2)
120%
µs
65%
40
2.6
4.3
0.48
V
µs
ms
UNDERVOLTAGE LOCKOUT (UVLO)
V
UVVREG5
VREG5 UVLO threshold
V
UVVREG3
VREG3 UVLO threshold
THERMAL SHUTDOWN
T
SDN
(2)
Thermal shutdown threshold
Shutdown temperature
Hysteresis
(2)
150
10
°C
Ensured by design. Not production tested.
Copyright © 2008, Texas Instruments Incorporated
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