TPS7B4254-Q1

Name: TPS7B4254-Q1
Brand: TI
SKU: TPS7B4254-Q1
Price: 0.684 USD

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Regulador de tensión de caída baja ajustable y seguimiento de tensión de 150 mA y sin batería (40 V)

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document-pdfAcrobat TPS7B4254-Q1 150-mA 40-V Voltage-Tracking LDO With 4-mV Tracking Tolerance datasheet (Rev. B) (Inglés) PDF | HTML

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Regulador automotriz de 70 mA y 40 V con seguimiento de tensión y caída baja con FB y tolerancia de 70-mA alternative with improved transient response and lower quiescent current

TPS7B4254-Q1

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Detalles del producto

Output options

Tracking Output

Iout (max) (A)

0.15

Vin (max) (V)

40

Vin (min) (V)

4

Vout (max) (V)

40

Vout (min) (V)

2

Rating

Automotive

PSRR at 100 KHz (dB)

43

Iq (typ) (mA)

0.06

Thermal resistance θJA (°C/W)

45

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Reverse Current Protection, Reverse voltage protection, Short-to-battery protection

Dropout voltage (Vdo) (typ) (mV)

160

Operating temperature range (°C)

-40 to 125

Output options

Tracking Output

Iout (max) (A)

0.15

Vin (max) (V)

40

Vin (min) (V)

4

Vout (max) (V)

40

Vout (min) (V)

2

Rating

Automotive

PSRR at 100 KHz (dB)

43

Iq (typ) (mA)

0.06

Thermal resistance θJA (°C/W)

45

Load capacitance (min) (µF)

10

Regulated outputs (#)

1

Features

Reverse Current Protection, Reverse voltage protection, Short-to-battery protection

Dropout voltage (Vdo) (typ) (mV)

160

Operating temperature range (°C)

-40 to 125

HSOIC (DDA)

8

29.4 mm² 4.9 x 6

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 3A
- Device CDM ESD Classification Level C6
–40-V to 45-V Wide Input-Voltage Range (Maximum)
Output-Voltage Adjust Range: 2 V to 40 V
150-mA Output Current Capability
Very Low Output-Tracking Tolerance, ±4 mV
160-mV Low-Dropout Voltage When I_OUT = 100 mA
Low Quiescent Current (I_(Q)):
- < 4 µA When ADJ = LOW
- 60 µA Typical at Light Load
Extremely Wide ESR Range
- 10-µF to 500-µF Ceramic Output Capacitor
- ESR Range from 1 mΩ to 20 Ω
Reverse Polarity Protection
Current-Limit and Thermal-Shutdown Protection
Output Short-Circuit-Proof to Ground and Supply
Inductive Clamp at OUT Pin
8-Pin SO PowerPAD Package With Exposed Thermal Pad

Qualified for Automotive Applications
AEC-Q100 Qualified With the Following Results
- Device Temperature Grade 1: –40°C to 125°C Ambient Operating Temperature Range
- Device HBM ESD Classification Level 3A
- Device CDM ESD Classification Level C6
–40-V to 45-V Wide Input-Voltage Range (Maximum)
Output-Voltage Adjust Range: 2 V to 40 V
150-mA Output Current Capability
Very Low Output-Tracking Tolerance, ±4 mV
160-mV Low-Dropout Voltage When I_OUT = 100 mA
Low Quiescent Current (I_(Q)):
- < 4 µA When ADJ = LOW
- 60 µA Typical at Light Load
Extremely Wide ESR Range
- 10-µF to 500-µF Ceramic Output Capacitor
- ESR Range from 1 mΩ to 20 Ω
Reverse Polarity Protection
Current-Limit and Thermal-Shutdown Protection
Output Short-Circuit-Proof to Ground and Supply
Inductive Clamp at OUT Pin
8-Pin SO PowerPAD Package With Exposed Thermal Pad

For automotive off-board sensors and low-current off-board modules, the power supply is through a long cable from the main board. In such cases, protection is required in the power devices for the off-board loads to prevent the onboard components from damage during a short to GND or short to battery caused by a broken cable. Off-board sensors require a power supply as consistent as that for onboard components to secure high accuracy of data acquisition.

The TPS7B4254-Q1 device is designed for automotive applications with a 45-V load dump. The device can either be used as one tracking low-dropout (LDO) regulator or as a voltage tracker to build one closed power loop for off-board sensors with an onboard main supply. The output of the device is accurately regulated by a reference voltage at the ADJ pin.

To provide an accurate power supply to the off-board modules, the device offers a 4-mV ultralow tracking tolerance between the ADJ and FB pins across temperature. The back-to-back PMOS topology eliminates the need for an external diode under a reverse-polarity condition. The TPS7B4254-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.

For automotive off-board sensors and low-current off-board modules, the power supply is through a long cable from the main board. In such cases, protection is required in the power devices for the off-board loads to prevent the onboard components from damage during a short to GND or short to battery caused by a broken cable. Off-board sensors require a power supply as consistent as that for onboard components to secure high accuracy of data acquisition.

The TPS7B4254-Q1 device is designed for automotive applications with a 45-V load dump. The device can either be used as one tracking low-dropout (LDO) regulator or as a voltage tracker to build one closed power loop for off-board sensors with an onboard main supply. The output of the device is accurately regulated by a reference voltage at the ADJ pin.

To provide an accurate power supply to the off-board modules, the device offers a 4-mV ultralow tracking tolerance between the ADJ and FB pins across temperature. The back-to-back PMOS topology eliminates the need for an external diode under a reverse-polarity condition. The TPS7B4254-Q1 device also includes thermal shutdown, inductive clamp, overload, and short-to-battery protection to prevent damage to onboard components during extreme conditions.

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Documentación técnica

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	Tipo	Título		Fecha
*	Data sheet	TPS7B4254-Q1 150-mA 40-V Voltage-Tracking LDO With 4-mV Tracking Tolerance datasheet (Rev. B)	PDF \| HTML	19 jul 2016
	Functional safety information	TPS7B4254-Q1 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A)	PDF \| HTML	28 abr 2023
	Application brief	Automotive Off-Board Sensor Power Considerations		20 sep 2018
	More literature	Fundamentals of designing with LDOs in auto battery direct connect applications		27 feb 2017
	Application note	Using Tracking LDOs as High-Side Switch (for Low-Current Applications)		28 oct 2016
	Application note	Various Applications for Voltage-Tracking LDO		03 ago 2016
	EVM User's guide	TPS7B4254-Q1 Evaluation Module User's Guide		27 jun 2016

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

TPS7B4254EVM — Módulo de evaluación de regulador LDO con seguimiento de tensión TPS7B4254-Q1

TPS7B4254-Q1 evaluation modules (EVM) help designers evaluate the operation and performance of TPS7B4254QDDARQ1 voltage-tracking LDO. The TPS7B4254-Q1 is a monolithic integrated low dropout voltage tracker in HSOIC-DDA package. It is designed to supply off-board sensors in automotive environment. (...)

Guía del usuario: PDF