TPS61390

AKTIV

Aufwärtswandler für 85 VOUT mit Stromspiegel und Sample-and-Hold

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Datenblatt

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

TPS61390

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

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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Technische Dokumentation

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	TPS61390 85-VOUT Boost Converter With Current Mirror and Sample / Hold datasheet (Rev. B)	PDF \| HTML	09.10.2019
	Whitepaper	Enabling Higher Data Rates for Optical Modules With Small and Efficient Power	PDF \| HTML	22.03.2021
	Zertifikat	TPS61390EVM-020 EU Declaration of Conformity (DoC)		20.04.2020
	Anwendungshinweis	How to Sample the Small APD Current Precisely With TPS61390 Boost Converter		20.12.2019
	Anwendungshinweis	TPS61390 Boost Converter With Low APD Bias Voltage Ripple		13.12.2019

Design und Entwicklung

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Evaluierungsplatine

TPS61390EVM-020 — Aufwärtswandler-Evaluierungsmodul für TPS61390

Der TPS61390-Baustein ist ein Aufwärtswandler mit integrierter Stromspiegel- und Sample-/Hold-Schaltung, die Vorspannung und Überwachung der Avalanche-Fotodioden (APD) in den optischen Empfängern ermöglichen. Der TPS61390 unterstützt eine Ausgangsspannung von bis zu 85 V bei einem (...)

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