TPS3513

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Supervisor de 3 canales con detección de sobrecorriente para fuentes de alimentación de modo conmuta

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document-pdfAcrobat PC-Power Supply Supervisor datasheet (Rev. B) (Inglés)

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TPS3513

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Detalles del producto

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

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

PDIP (N)

14

181.42 mm² 19.3 x 9.4

SOIC (D)

14

51.9 mm² 8.65 x 6

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

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

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.

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.

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	Tipo	Título		Fecha
*	Data sheet	PC-Power Supply Supervisor datasheet (Rev. B)		08 sep 2010

TPS3513

Supervisor de 3 canales con detección de sobrecorriente para fuentes de alimentación de modo conmuta

Se encuentra disponible una versión más nueva de este producto

Funcionalidad similar a la del dispositivo comparado

TPS3513

Detalles del producto

Documentación técnica

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI