TPS3510DR Datasheet, PDF (1/18 Pages) Texas Instruments – PC POWER SUPPLY SUPERVISORS

TPS3510,TPS3511
PC POWER SUPPLY SUPERVISORS
D Overvoltage Protection and Lockout for
12 V, 5 V, 3.3 V
D Undervoltage Protection and Lockout 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, 3.3 V and 5 V
D Power Good Delay; 300-ms TPS3510,
150-ms TPS3511
D 75-ms Delay for 5-V and 3.3-V Power
Supply Short-Circuit Turnon Protection
D 2.3-ms PSON Control to FPO Turnoff Delay
D 38-ms PSON Control Debounce
D 73-µs Width Noise Deglitches
D Wide Supply Voltage Range From 4 V
to 15 V
SLVS312A – JULY 2000 – REVISED DECEMBER 2002
D OR P PACKAGE
(TOP VIEW)
PGI
1
8
PGO
GND
2
7
V_DD
FPO
3
6
VS5
PSON
4
5
VS33
description
The TPS3510/1 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 PSON control.
Overvoltage protection (OVP) monitors 3.3 V, 5 V, and 12 V (12-V signal detects via V_DD pin). Undervoltage
protection (UVP) monitors 3.3 V and 5 V. When an OV or UV condition is detected, the power good output (PGO)
is set to low and FPO is latched high. PSON from low to high resets the protection latch. UVP function is enabled
75 ms after PSON is set low and debounced. Furthermore, there is a 2.3-ms delay (and an additional 38-ms
debounce) at turnoff. There is no delay during turnon.
Power good feature monitors PGI, 3.3 V and 5 V and issues a power good signal when the output is ready.
The TPS3510/1 is characterized for operation from –40°C to 85°C.
typical application
5 VSB
PSON
(From Motherboard)
1 _{PGI PGO} 8
2 _GND
3 _FPO
VDD
VS5
7
6
4 _{PSON VS33} 5
0.5 V
Drop
PGI
PGO
12 V
VSB
5V
3.3 V
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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.
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Copyright  2002, Texas Instruments Incorporated
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