Datasheet

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DEVICE INFORMATION
10-V
Regulator
Thermalshutdown
50mW
3
2
11.3V
and9.5V
1.5V
and 10V
-
+
RTN
36mV
CLASS
DET
Current
Limit Amp.
EN
Delay
150 Sm
5
6
PG
1 =Limiting
PGComparator
Detection
Comparator
Classification
Comparator
0
1
800 W
2.5V
1:1
Current
Mirror
1
ILIM
4
VSS
7
UVLO
-
-
-
-
-
+
+
+
+
+
Q
S
R
2.49V
and1.93V
UVLO
Comp.
1 =Inrush
21.9V
and21.1V
VDD
8
TPS2376-H
SLVS646A – SEPTEMBER 2006 – REVISED SEPTEMBER 2006
ELECTRICAL CHARACTERISTICS (continued)
V
(VDD)
= 48 V, R
(DET)
= 24.9 k Ω , R
(CLASS)
= 255 Ω , R
(ILIM)
= 287 k Ω , and –40 ° C ≤ T
J
≤ 125 ° C, unless otherwise noted. Positive
currents are into pins. Typical values are at 25 ° C. All voltages are with respect to VSS unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
PG
Voltage threshold rising
(3)
V
(RTN)
rising 9.5 10 10.5 V
PG deglitch Delay rising and falling PG 75 150 225 µ s
I
(PG)
= 2 mA, V
(RTN)
= 34 V,
0.12 0.4 V
V
(VDD)
= 38 V, V
(RTN)
falling
Output low voltage
I
(PG)
= 2 mA, V
(RTN)
= 0 V, V
(VDD)
= 25 V 0.12 0.4 V
Leakage current V
(PG)
= 57 V, V
(RTN)
= 0 V 0.1 1 µ A
UVLO
V
(UVLO_R)
V
(UVLO)
rising 2.43 2.49 2.57
V
(UVLO_F)
Voltage at UVLO - TPS2376-H V
(UVLO)
falling 1.87 1.93 1.98 V
Hysteresis 0.53 0.56 0.58
THERMAL SHUTDOWN
Shutdown temperature Temperature rising 135 ° C
Hysteresis 20 ° C
BIAS CURRENT
Operating current I
(VDD)
240 450 µ A
(3) Start with V
(RTN)
= 0 V, then increase V
(RTN)
until PG switches. Measure before thermal shutdown occurs.
FUNCTIONAL BLOCK DIAGRAM
4
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