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TPS3513N +BOM

200ms Active Low 3 PDIP-14 Monitors & Reset Circuits ROHS

Manufacturer:

Texas Instruments
Mfr.Part #:

TPS3513N
Datasheet:

TPS3513N Datasheet (PDF)
Number Of Supplies Monitored:

3
Threshold Voltage 1 (typ) (V):

2.2, 3.5, 3.9, 6.1, 9, 13.8
Features:

PFI/PFO, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage
Reset Threshold Accuracy (%):

2.3
EDA/CAD Models:

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TPS3513N Information

General Description

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. PSON from low-to-high resets the latch. The OCP function will be enabled 75 ms after PSON goes low, and a debounce of typically 38 ms. A built-in 2.3-ms delay with 38-ms debounce from PSON to FPO output 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.

Key Features

Overvoltage Protection and Lockout for 12 V,
5 V, and 3.3 V
Overcurrent Protection and Lockout for 12 V,
5 V, and 3.3 V
Undervoltage Protection and Lockout for 12 V,
and Undervoltage Detect 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,
3.3 V and 5 V
300-ms Power-Good Delay
75-ms Delay for 5-V and 3.3-V Power Supply
Short-Circuit Turnon Protection
2.3 ms PSON Control to FPO Turnoff Delay
38 ms PSON Control Debounce
Wide Supply Voltage Range From 4.5 V
to 15 V

Specifications

Number of supplies monitored	3	Threshold voltage 1 (typ) (V)	2.2, 3.5, 3.9, 6.1, 9, 13.8
Features	PFI/PFO, Separate VDD & sense, Undervoltage and overvoltage monitor, Wide input voltage	Reset threshold accuracy (%)	2.3
Iq (typ) (mA)	1	Output driver type/reset output	Active-low, Open-drain
Time delay (ms)	300	Supply voltage (min) (V)	4.5
Supply voltage (max) (V)	15	Rating	Catalog
Watchdog timer WDI (s)	None	Operating temperature range (°C)	-40 to 85
Package/Case	PDIP-14