TPS5510
3-CHANNEL POWER SUPPLY SUPERVISOR
SLVS168 鈥?JULY 1998
D
D
D
D
D
D
D
D
D
Over Voltage Protection and Lock Out for
5 V, 3.3 V, and 12 V
Under Voltage Protection and Lock Out for
5 V and 3.3 V
Fault Protection Output with Open Drain
Output Stage
Open Drain Power Good Output Signal for
Power Good Input, 5 V and 3.3 V
300 ms Power Good Delay
75 ms Delay for 5-V and 3.3-V Short-Circuit
Turn On Protection
38 ms PSON Control Debounce
73
碌s
Width Noise Deglitches
Wide Power Supply Voltage Range
from 4 V to 15 V
D OR P PACKAGE
(TOP VIEW)
PGI
GND
FPO
PSON
1
2
3
4
8
7
6
5
PGO
V
CC
VS5
VS33
description
The TPS5510 is designed to minimize external components of personal computer switching power supply
systems. It provides protection circuits, power good indicator, fault protection output (FPO), and a PSON control.
OVP (Over Voltage Protection) monitors 5 V, 3.3 V, and 12 V (12 V OV detects via V
CC
terminal). UVP (Under
Voltage Protection) monitors 5 V and 3.3 V. When an OV or UV condition is detected, the PGO (power good
output) is asserted low and FPO is latched high. PSON from low to high resets the protection latch. UVP function
will be enabled 75 ms after PSON is set low and debounced.
Power good feature monitors PGI, 5 V and 3.3 V and issues a power good signal when they are ready.
The TPS5510 is characterised for operation from T
J
= 鈥?0擄C to 125擄C junction temperature.
5 VSB
PGI
PGO
TPS5510
1
2
3
4
PGI
GND
FPO
PSON
PGO
VCC
VS5
VS33
8
7
6
5
0.5 V
Drop
VSB
5V
3.3 V
12 V
PSON
Figure 1. TPS5510 Typical Application
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright
漏
1998, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
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