TPS51211
www.ti.com
SLUSAA7 –NOVEMBER 2010
ELECTRICAL CHARACTERISTICS (continued)
over recommended free-air temperature range, V5IN=5V. (Unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PROTECTION: CURRENT SENSE
ITRIP
TRIP source current
VTRIP = 1V, TA = 25°C
9
10
11
mA
TRIP current temperature
coeffficient
(3)
TCITRIP
On the basis of 25°C
VTRIP-GND Voltage
4700
ppm/°C
Current limit threshold setting
range
VTRIP
VOCL
0.2
3
V
VTRIP = 3.0 V
VTRIP = 0.2 V
Positive
375
25
mV
Current limit threshold
3
15
Auto zero cross adjustable
range
VAZCADJ
mV
Negative
–15
–3
PROTECTION: UVP AND OVP
VOVP
OVP trip threshold
OVP detect
115%
120%
1
125%
tOVPDEL
VUVP
OVP propagation delay time
Output UVP trip threshold
50-mV overdrive
UVP detect
ms
65%
0.8
70%
75%
1.2
Output UVP propagation delay
time
tUVPDEL
1
ms
ms
tUVPEN
Output UVP enable delay time
From Enable to UVP workable
1.0
1.2
1.4
UVLO
Wake up
4.20
3.7
4.38
3.93
4.50
4.1
VUVV5IN
V5IN UVLO threshold
V
Shutdown
THERMAL SHUTDOWN
Shutdown temperature(3)
Hysteresis(3)
145
10
TSDN
Thermal shutdown threshold
°C
(3) Ensured by design. Not production tested.
Copyright © 2010, Texas Instruments Incorporated
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