TPS22950

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Interruptor de carga de 5.5 V, 3.2 A, 34 mΩ con límite de corriente ajustable

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document-pdfAcrobat TPS22950x 5.5-V, 3.2-A, 34-mΩ Adjustable Current Limited Load Switch datasheet (Rev. B) (Inglés) PDF | HTML

TPS22950

ACTIVO

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Detalles del producto

Product type

Load switches

Current limit type

Adjustable

Vin (max) (V)

5.5

Vin (min) (V)

1.8

Imax (A)

2.7

Rating

Catalog

Features

Inrush current control, Quick output discharge, Reverse current blocking, Short circuit protection, Thermal shutdown

Number of channels

1

Quiescent current (Iq) (typ) (µA)

40

Shutdown current (ISD) (typ) (µA)

0.2

Soft start

Fixed Rise Time

Ron (typ) (mΩ)

34

Operating temperature range (°C)

-40 to 125

Product type

Load switches

Current limit type

Adjustable

Vin (max) (V)

5.5

Vin (min) (V)

1.8

Imax (A)

2.7

Rating

Catalog

Features

Inrush current control, Quick output discharge, Reverse current blocking, Short circuit protection, Thermal shutdown

Number of channels

1

Quiescent current (Iq) (typ) (µA)

40

Shutdown current (ISD) (typ) (µA)

0.2

Soft start

Fixed Rise Time

Ron (typ) (mΩ)

34

Operating temperature range (°C)

-40 to 125

SOT-23-THN (DDC)

6

8.12 mm² (2.9 mm × 2.8 mm)

DSBGA (YBH)

6

1.4 mm² (1.4 mm × 1 mm)

Input operating voltage range (V_IN): 1.8 V–5.5 V
Output current limit (I_LIMIT): 0.05 A–3.5 A (typ.)
TPS22950: Auto-retry current limit response
TPS22950L: Latch off current limit response
Thermal shutdown (TSD)
ON-resistance (R_ON):
- R_ON at V_IN = 5 V: 34 mΩ (typ.)
- R_ON at V_IN = 3.3 V: 41 mΩ (typ.)
Slow turn-ON timing limits inrush current (typ.):
- t_ON at V_IN = 5 V: 800 µs
- t_ON at V_IN = 3.3 V: 550 µs
Always-ON reverse current blocking (TPS22950)
Fault indication (FLT)
Quick output discharge (QOD): 150 Ω
Smart ON pin pulldown (R_PD,ON):
- ON ≥ V_IH (I_ON): 50 nA (max.)
- ON ≤ V_IL (R_PD,ON): 500 kΩ (typ.)
Low power consumption:
- ON state (I_Q): 40 µA (typ.)
- OFF state (I_SD): 0.2 µA (typ.)
UL 2367 Recognition – File No. E169910
- Certified from I_LIM = 66 mA to 2.46 A

Input operating voltage range (V_IN): 1.8 V–5.5 V
Output current limit (I_LIMIT): 0.05 A–3.5 A (typ.)
TPS22950: Auto-retry current limit response
TPS22950L: Latch off current limit response
Thermal shutdown (TSD)
ON-resistance (R_ON):
- R_ON at V_IN = 5 V: 34 mΩ (typ.)
- R_ON at V_IN = 3.3 V: 41 mΩ (typ.)
Slow turn-ON timing limits inrush current (typ.):
- t_ON at V_IN = 5 V: 800 µs
- t_ON at V_IN = 3.3 V: 550 µs
Always-ON reverse current blocking (TPS22950)
Fault indication (FLT)
Quick output discharge (QOD): 150 Ω
Smart ON pin pulldown (R_PD,ON):
- ON ≥ V_IH (I_ON): 50 nA (max.)
- ON ≤ V_IL (R_PD,ON): 500 kΩ (typ.)
Low power consumption:
- ON state (I_Q): 40 µA (typ.)
- OFF state (I_SD): 0.2 µA (typ.)
UL 2367 Recognition – File No. E169910
- Certified from I_LIM = 66 mA to 2.46 A

The TPS22950x is a small, single channel load switch with robust protection against fault cases with adjustable output current limiting, reverse current blocking, and thermal shutdown.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a smart pulldown is used to keep the ON pin from floating until system sequencing is complete. After the pin is deliberately driven high (>V_IH), the smart pulldown is disconnected to prevent unnecessary power loss.

The TPS22950/C responds to overcurrent events with auto-retry behavior, while the TPS22950L uses a debounce time and latch off behavior.

TPS22950x is available in a standard WCSP package and leaded SOT package characterized for operation over an ambient temperature range of –40°C to 125°C.

The TPS22950x is a small, single channel load switch with robust protection against fault cases with adjustable output current limiting, reverse current blocking, and thermal shutdown.

The switch ON state is controlled by a digital input that is capable of interfacing directly with low-voltage control signals. When power is first applied, a smart pulldown is used to keep the ON pin from floating until system sequencing is complete. After the pin is deliberately driven high (>V_IH), the smart pulldown is disconnected to prevent unnecessary power loss.

The TPS22950/C responds to overcurrent events with auto-retry behavior, while the TPS22950L uses a debounce time and latch off behavior.

TPS22950x is available in a standard WCSP package and leaded SOT package characterized for operation over an ambient temperature range of –40°C to 125°C.

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Documentación técnica

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Documentación principal	Tipo	Título	Opciones de formato	Fecha
*	Hoja de datos	TPS22950x 5.5-V, 3.2-A, 34-mΩ Adjustable Current Limited Load Switch datasheet (Rev. B)	PDF \| HTML	28/02/2023
	Certificado	TPS22950LEVM EU RoHS Declaration of Conformity (DoC)		11/10/2021
	Certificado	TPS22950EVM EU Declaration of Conformity (DoC)		18/11/2020
	Application brief	Current Limit and Short Circuit Protection in Power Restricted Load Switch Apps	PDF \| HTML	24/09/2020

Diseño y desarrollo

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Placa de evaluación

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