TPS3513 Series
3-channel supervisor with overcurrent detect for switch-mode power supplies
Manufacturer: Texas Instruments
Catalog(2 parts)
| Part | Reset Timeout▲▼ | Reset | Mounting Type | Output | Package / Case▲▼ | Package / Case▲▼ | Package / Case | Operating Temperature▲▼ | Operating Temperature▲▼ | Voltage - Threshold▲▼ | Type | Number of Voltages Monitored▲▼ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.20000000298023224 s | Active Low | Surface Mount | Open Drain or Open Collector | 0.003899999894201755 m | 0.003911599982529879 m | 14-SOIC | 85 °C | -40 °C | 3.299999952316284 V, 5 V, 12 V | Multi-Voltage Supervisor | 3 ul | |
0.20000000298023224 s | Active Low | Through Hole | Open Drain or Open Collector | 0.007619999814778566 m | 0.007619999814778566 m | 14-DIP | 85 °C | -40 °C | 3.299999952316284 V, 5 V, 12 V | Multi-Voltage Supervisor | 3 ul |
Key Features
• Overvoltage Protection and Lockout for 12 V,5 V, and 3.3 VOvercurrent Protection and Lockout for 12 V,5 V, and 3.3 VUndervoltage Protection and Lockout for 12 V,and Undervoltage Detect for 5 V and 3.3 VFault-Protection Output With Open Drain Output StageOpen-Drain, Power Good Output Signal for Power-Good Input,3.3 V and 5 V300-ms Power-Good Delay75-ms Delay for 5-V and 3.3-V Power SupplyShort-Circuit Turnon Protection2.3 msPSONControl toFPOTurnoff Delay38 msPSONControl DebounceWide Supply Voltage Range From 4.5 Vto 15 VOvervoltage Protection and Lockout for 12 V,5 V, and 3.3 VOvercurrent Protection and Lockout for 12 V,5 V, and 3.3 VUndervoltage Protection and Lockout for 12 V,and Undervoltage Detect for 5 V and 3.3 VFault-Protection Output With Open Drain Output StageOpen-Drain, Power Good Output Signal for Power-Good Input,3.3 V and 5 V300-ms Power-Good Delay75-ms Delay for 5-V and 3.3-V Power SupplyShort-Circuit Turnon Protection2.3 msPSONControl toFPOTurnoff Delay38 msPSONControl DebounceWide Supply Voltage Range From 4.5 Vto 15 V
Description
AI
The TPS3513 is designed to optimize PC switching power supply system with minimum external components. It provides undervoltage lockout (UVLO), protection circuits, power good indicator, and on/off control.
UVLO thresholds are 4.45 V (on) and 3.65 V (off). Overcurrent protection (OCP) and overvoltage protection (OVP) monitor 3.3 V, 5 V, and 12 V. When an OC or OV condition is detected, the power-good output (PGO) is asserted low and the fault protection output (FPO) is latched high.PSONfrom low-to-high resets the latch. The OCP function will be enabled 75 ms afterPSONgoes low, and a debounce of typically 38 ms. A built-in 2.3-ms delay with 38-ms debounce fromPSONtoFPOoutput is enabled at turnoff.
An external resistor is connected between the RI pin and the GND pin. This will introduce an accurate I(ref)for OCP function. The I(ref)range is from 12.5 µA to 62.5 µA. The formula for choosing RI resistor is V(RI)/I(ref). Three OCP comparators and the I(ref)section are supplied by VS12. The current draw from the VS12 pin is less than 1 mA.
The power good feature monitors PGI, 3.3 V and 5 V, and issues a power good signal when the output is ready.
The TPS3513 is characterized for operation from –40°C to 85°C.
The TPS3513 is designed to optimize PC switching power supply system with minimum external components. It provides undervoltage lockout (UVLO), protection circuits, power good indicator, and on/off control.
UVLO thresholds are 4.45 V (on) and 3.65 V (off). Overcurrent protection (OCP) and overvoltage protection (OVP) monitor 3.3 V, 5 V, and 12 V. When an OC or OV condition is detected, the power-good output (PGO) is asserted low and the fault protection output (FPO) is latched high.PSONfrom low-to-high resets the latch. The OCP function will be enabled 75 ms afterPSONgoes low, and a debounce of typically 38 ms. A built-in 2.3-ms delay with 38-ms debounce fromPSONtoFPOoutput is enabled at turnoff.
An external resistor is connected between the RI pin and the GND pin. This will introduce an accurate I(ref)for OCP function. The I(ref)range is from 12.5 µA to 62.5 µA. The formula for choosing RI resistor is V(RI)/I(ref). Three OCP comparators and the I(ref)section are supplied by VS12. The current draw from the VS12 pin is less than 1 mA.
The power good feature monitors PGI, 3.3 V and 5 V, and issues a power good signal when the output is ready.
The TPS3513 is characterized for operation from –40°C to 85°C.