
TPS5510
3-CHANNEL POWER SUPPLY SUPERVISOR
SLVS168 – JULY 1998
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Over Voltage Protection and Lock Out for
5 V, 3.3 V, and 12 V
D Under Voltage Protection and Lock Out for
5 V and 3.3 V
D Fault Protection Output with Open Drain
Output Stage
D Open Drain Power Good Output Signal for
Power Good Input, 5 V and 3.3 V
D 300 ms Power Good Delay
D 75 ms Delay for 5-V and 3.3-V Short-Circuit
Turn On Protection
D 38 ms PSON Control Debounce
D 73 s Width Noise Deglitches
D Wide Power Supply Voltage Range
from 4 V to 15 V
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 VCC 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 TJ = –40°C to 125°C junction temperature.
PGI
GND
PSON
FPO
PGO
VCC
VS5
VS33
0.5 V
Drop
PGI
PGO
12 V
VSB
5 V
3.3 V
PSON
5 VSB
8
7
5
6
1
2
3
4
TPS5510
Figure 1. TPS5510 Typical Application
Copyright
1998, Texas Instruments Incorporated
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.
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.
1
2
3
4
8
7
6
5
PGI
GND
FPO
PSON
PGO
VCC
VS5
VS33
D OR P PACKAGE
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