TPS61390

활성

전류 미러 및 샘플 앤 홀드를 지원하는 85-VOUT 부스트 컨버터

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document-pdfAcrobat TPS61390 85-VOUT Boost Converter With Current Mirror and Sample / Hold datasheet (Rev. B) (영어) PDF | HTML

TPS61390

활성

데이터 시트

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제품 상세 정보

Rating

Catalog

Topology

Boost, Flyback, SEPIC

Vin (max) (V)

5.5

Vin (min) (V)

2.5

Vout (max) (V)

84

Vout (min) (V)

2.5

Switch current limit (typ) (A)

1

Features

Enable, Nonsynchronous, UVLO fixed

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0005

Duty cycle (max) (%)

99

Rating

Catalog

Topology

Boost, Flyback, SEPIC

Vin (max) (V)

5.5

Vin (min) (V)

2.5

Vout (max) (V)

84

Vout (min) (V)

2.5

Switch current limit (typ) (A)

1

Features

Enable, Nonsynchronous, UVLO fixed

Operating temperature range (°C)

-40 to 125

Iq (typ) (A)

0.0005

Duty cycle (max) (%)

99

WQFN (RTE)

16

9 mm² (3 mm × 3 mm)

Input voltage range: 2.5 V to 5.5 V
Output voltage range: up to 85 V
R_(DS)on of switching FET: 0.9 Ω
Switch current limit: 1000 mA
Sample window with minimum 400-ns
High optical power protection with 0.5-µs response time
Switching frequency: 700 kHz
Quiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCC
Soft-start time: 4.8 ms
Package: 3 mm × 3 mm × 0.75 mm QFN

Input voltage range: 2.5 V to 5.5 V
Output voltage range: up to 85 V
R_(DS)on of switching FET: 0.9 Ω
Switch current limit: 1000 mA
Sample window with minimum 400-ns
High optical power protection with 0.5-µs response time
Switching frequency: 700 kHz
Quiescent current: 110 µA from VIN, 340 µA from VOUT, 140 µA from AVCC
Soft-start time: 4.8 ms
Package: 3 mm × 3 mm × 0.75 mm QFN

The TPS61390 is a 700-kHz pulse-width modulating (PWM) step-up converter with an 85-V switch FET with an input ranging from 2.5 V to 5.5 V. The switching peak current is up to 1000 mA. The TPS61390 includes accurate current mirror with two gain options selectable (1 : 5 or 4 : 5).

Additionally, the TPS61390 integrates a sample-and-hold circuitry for the burst-mode optical receiver applications to capture the current flowing through the APD and pass the current to an external ADC. The device supports fast response time during the transition between strong and weak optical density. The TPS61390 also provides high optical-power protection with an additional FET in series with the APD power path with the typical response time of 0.5 µs . It can recover automatically once the high optical releasing.

The TPS61390 is available in 3 mm × 3 mm QFN package with exposed pad underneath.

The TPS61390 is a 700-kHz pulse-width modulating (PWM) step-up converter with an 85-V switch FET with an input ranging from 2.5 V to 5.5 V. The switching peak current is up to 1000 mA. The TPS61390 includes accurate current mirror with two gain options selectable (1 : 5 or 4 : 5).

Additionally, the TPS61390 integrates a sample-and-hold circuitry for the burst-mode optical receiver applications to capture the current flowing through the APD and pass the current to an external ADC. The device supports fast response time during the transition between strong and weak optical density. The TPS61390 also provides high optical-power protection with an additional FET in series with the APD power path with the typical response time of 0.5 µs . It can recover automatically once the high optical releasing.

The TPS61390 is available in 3 mm × 3 mm QFN package with exposed pad underneath.

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5개 모두 보기

상위 문서	유형	직함	형식 옵션	날짜
*	데이터 시트	TPS61390 85-VOUT Boost Converter With Current Mirror and Sample / Hold datasheet (Rev. B)	PDF \| HTML	2019. 10. 9
	백서	Enabling Higher Data Rates for Optical Modules With Small and Efficient Power	PDF \| HTML	2021. 3. 22
	인증서	TPS61390EVM-020 EU Declaration of Conformity (DoC)		2020. 4. 20
	애플리케이션 노트	How to Sample the Small APD Current Precisely With TPS61390 Boost Converter		2019. 12. 20
	애플리케이션 노트	TPS61390 Boost Converter With Low APD Bias Voltage Ripple		2019. 12. 13

설계 및 개발

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평가 보드

TPS61390EVM-020 — TPS61390용 부스트 컨버터 평가 모듈

TPS61390은 전류 미러 및 샘플/홀드 회로가 통합된 스텝업 컨버터로, 광학 리시버의 APD(애벌런치 포토다이오드)를 바이어싱하고 모니터링하도록 설계되었습니다. TPS61390은 2.5V~5.5V 범위의 입력에서 최대 85V 출력을 지원합니다. 스위칭 피크 전류는 최대 800mA이며 스위칭 주파수는 1.2MHz입니다.

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