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2022-09-24 23:33:15
TPS3510-PC Power Supervisor
The purpose of the TPS3510/1 is to minimize the external components of a personal computer switching power supply system. It provides protection circuitry, power good indicator, fault protected output (FPO) and PSON control. Over Voltage Protection (OVP) displays are 3.3 V, 5 V and 12 V (12 V signal detected via VDD pin). Undervoltage protection (UVP) monitors 3.3 V and 5 V when OV or UV conditions are detected, the power good output (PGO) is set low and the FPO is latched high. PSON is locked from low-to-high reset protection. The UVP function is enabled 75ms after PSON is set low and debounced. Also, there is a 2.3 ms delay (and an additional 38 ms of jitter) at shutdown. There is no delay in turnon. The power good function monitors the 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.
* Overvoltage protection and lockout for 12 V, 5 V, 3.3 V
* Undervoltage protection and lockout at 5 V and 3.3 V
* Fail-safe output open-drain output stage
* Open Drain Power Good Output Signal Power Good Input, 3.3 V and 5 V
* Power good delay; 150ms 300ms TPS3510, TPS3511
* 75 ms delay for 5 V and 3.3 V supply short-circuit Turnon protection
* 2.3ms PSON control FPO shutdown delay
* 38ms PSON control anti-shake
* Noise Deglitches of 73 microsecond width
* Wide supply voltage range from 4 V to 15 V