TPS22971

Name: TPS22971
Brand: TI
SKU: TPS22971
Price: 0.144 USD

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3,6-V-, 3-A-, 6,7-mΩ-Lastschalter, mit einstellbarer Anstiegszeit, Power Good und Ausgangsentladung

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Datenblatt

document-pdfAcrobat TPS22971 3.6-V, 3-A, 6.7-mΩ On-Resistance Load Switch with Adjustable Fast Turn-ON and Power Good datasheet (Rev. C) (Englisch) PDF | HTML

TPS22971

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Datenblatt

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Produktdetails

Imax (A)

3

Vin (max) (V)

3.6

Vin (min) (V)

0.65

Number of channels

1

Features

Inrush current control, Power good signal, Quick output discharge, Thermal shutdown

Quiescent current (Iq) (typ) (µA)

30

Soft start

Adjustable Rise Time

Rating

Catalog

Ron (typ) (mΩ)

6.7

Shutdown current (ISD) (typ) (µA)

1

Current limit type

None

Function

Inrush current control, Power good signal

FET

Internal

Operating temperature range (°C)

-40 to 105

Device type

Load switches

Imax (A)

3

Vin (max) (V)

3.6

Vin (min) (V)

0.65

Number of channels

1

Features

Inrush current control, Power good signal, Quick output discharge, Thermal shutdown

Quiescent current (Iq) (typ) (µA)

30

Soft start

Adjustable Rise Time

Rating

Catalog

Ron (typ) (mΩ)

6.7

Shutdown current (ISD) (typ) (µA)

1

Current limit type

None

Function

Inrush current control, Power good signal

FET

Internal

Operating temperature range (°C)

-40 to 105

Device type

Load switches

DSBGA (YZP)

8

2.8125 mm² 2.25 x 1.25

Input voltage range (V_IN): 0.65 V to 3.6 V
On-resistance
- R_DS(on) = 6.7 mΩ (typical) at V_IN ≥ 1.8 V
- R_DS(on) = 7.2 mΩ (typical) at V_IN = 1.05 V
- R_DS(on) = 8.9 mΩ (typical) at V_IN = 0.65 V
Maximum continuous switch current (I_MAX): 3 A
ON state (I_Q): 30 µA (typical) at 3.6 V_IN
OFF state (I_SD): 1 µA (typical) at 3.6 V_IN
Adjustable slew rate through CT pin
- Fast turn-ON ≤ 65 µs at V_IN = 1 V
Power good (PG) indicator after switch turn ON
Low threshold enable (ON) of 0.9 V (V_IH) supports use of low voltage control logic
Thermal shutdown (T_SD)
Quick output discharge (QOD): 150-Ω (typical)

Input voltage range (V_IN): 0.65 V to 3.6 V
On-resistance
- R_DS(on) = 6.7 mΩ (typical) at V_IN ≥ 1.8 V
- R_DS(on) = 7.2 mΩ (typical) at V_IN = 1.05 V
- R_DS(on) = 8.9 mΩ (typical) at V_IN = 0.65 V
Maximum continuous switch current (I_MAX): 3 A
ON state (I_Q): 30 µA (typical) at 3.6 V_IN
OFF state (I_SD): 1 µA (typical) at 3.6 V_IN
Adjustable slew rate through CT pin
- Fast turn-ON ≤ 65 µs at V_IN = 1 V
Power good (PG) indicator after switch turn ON
Low threshold enable (ON) of 0.9 V (V_IH) supports use of low voltage control logic
Thermal shutdown (T_SD)
Quick output discharge (QOD): 150-Ω (typical)

The TPS22971 is a space-saving single-channel load switch with controlled and adjustable turn-on slew rate and an integrated power good indicator. the device contains an n-channel mosfet that can operate over a low input voltage range of 0.65 v to 3.6 V and can support a maximum continuous current of 3 A. A low on-resistance of 6.7-mΩ minimizes the power loss and voltage drop across the load switch. The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.

By default, the TPS22971 has a fast turn-on time to minimize system startup and wait time. The adjustable slew rate can also be reduced to limit inrush current. A power good (PG) signal internally monitors the gate threshold and indicates when the switch is fully on. When the switch is disabled, a 150-Ω on-chip resistor quickly discharges the output to ground and keeps it from floating.

The TPS22971 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to 105°C and integrates thermal shutdown to turn off in case of overheating.

The TPS22971 is a space-saving single-channel load switch with controlled and adjustable turn-on slew rate and an integrated power good indicator. the device contains an n-channel mosfet that can operate over a low input voltage range of 0.65 v to 3.6 V and can support a maximum continuous current of 3 A. A low on-resistance of 6.7-mΩ minimizes the power loss and voltage drop across the load switch. The switch is controlled by an on and off input (ON), which is capable of interfacing directly with low-voltage control signals.

By default, the TPS22971 has a fast turn-on time to minimize system startup and wait time. The adjustable slew rate can also be reduced to limit inrush current. A power good (PG) signal internally monitors the gate threshold and indicates when the switch is fully on. When the switch is disabled, a 150-Ω on-chip resistor quickly discharges the output to ground and keeps it from floating.

The TPS22971 is available in an ultra-small, space saving 8-pin WCSP package and is characterized for operation over the free-air temperature range of –40°C to 105°C and integrates thermal shutdown to turn off in case of overheating.

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	Typ	Titel		Datum
*	Data sheet	TPS22971 3.6-V, 3-A, 6.7-mΩ On-Resistance Load Switch with Adjustable Fast Turn-ON and Power Good datasheet (Rev. C)	PDF \| HTML	17 Feb 2020
	Application note	Basics of Power Switches (Rev. A)	PDF \| HTML	26 Apr 2019
	Application note	Load Switch Thermal Considerations (Rev. A)		11 Okt 2018
	Application note	Basics of Load Switches (Rev. A)		05 Sep 2018
	Application note	Selecting a Load Switch to Replace a Discrete Solution		30 Apr 2017
	Application note	Timing of Load Switches		27 Apr 2017
	Application note	Fundamentals of On-Resistance in Load Switches		09 Jun 2016
	Application note	Quiescent Current vs Shutdown Current for Load Switch Power Consumption		30 Mär 2016
	Application note	Managing Inrush Current (Rev. A)		28 Mai 2015

Design und Entwicklung

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Evaluierungsplatine

TPS22971EVM — TPS22971 3,6 V, 3 A, 7,5 mΩ-Durchlasswiderstand-Lastschalter – Evaluierungsmodul

Das Evaluierungsmodul (EVM) TPS22971 ist ein vollständig montierter und getesteter Schaltkreis zum Evaluieren des Lastschalters TPS22971. TPS22971EVM ermöglicht es dem Benutzer, verschiedene Eingangsspannungen (0,65 V bis 3,6 V) unter verschiedenen Lastbedingungen (0 A bis 3 A) an TPS22971 (...)

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TPS22971

3,6-V-, 3-A-, 6,7-mΩ-Lastschalter, mit einstellbarer Anstiegszeit, Power Good und Ausgangsentladung

TPS22971

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