전력 관리 AC/DC 및 DC/DC 컨버터(통합 FET)

TPS61381-Q1

활성

LDO 충전기 및 배터리 상태 감지를 지원하는 400kHz 부스트 컨버터

제품 상세 정보

Rating Automotive Topology Boost Switch current limit (typ) (A) 20 Vin (max) (V) 13 Vin (min) (V) 0.5 Vout (max) (V) 12 Vout (min) (V) 5 Features Adjustable current limit, Bidirectional, Enable, I2C interface, Spread Spectrum, Synchronous rectification, UVLO fixed EMI features Frequency Dithering, Spread Spectrum Control mode Peak current mode Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 20 Duty cycle (max) (%) 90 Type Converter
Rating Automotive Topology Boost Switch current limit (typ) (A) 20 Vin (max) (V) 13 Vin (min) (V) 0.5 Vout (max) (V) 12 Vout (min) (V) 5 Features Adjustable current limit, Bidirectional, Enable, I2C interface, Spread Spectrum, Synchronous rectification, UVLO fixed EMI features Frequency Dithering, Spread Spectrum Control mode Peak current mode Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 400 Operating temperature range (°C) -40 to 125 Iq (typ) (µA) 20 Duty cycle (max) (%) 90 Type Converter
WQFN-FCRLF (RAV) 24 12 mm² 4 x 3
  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • I2C programmable LDO charger
    • Supports charger input voltage (VOUT Pin) up to 21V, absmax up to 40V to withstand load dump
    • Supports multi-chemistry battery charging profile of 1-5 cell NiMH, 1-2 cell Li-Ion, LiFePO4, 1-4 cell super capacitor
    • Programmable charging current 50mA and 100mA
    • Wide battery voltage operating range 0V to 12V
    • Programmable charging timer up to 32h
    • NTC thermistor input to monitor battery temperature
  • Programmable boost converter supporting 12V car battery back-up power system
    • Programmable output voltage range: 5V to 12V
    • Programmable boost average input current limit from 5A to 15A
    • Back-up battery (BUB) voltage in boost mode: 0.5V to 12V
      • Minimum 3V for start up
      • Can start up at 1V when Vout>5V
    • <20us automatic transition into the boost mode when 12V system voltage drops
  • Backup battery State-of-Health(SOH) detection
    • Adjustable discharge current from 0A to 1.5A
    • Multi-signal analog output(AVI pin) of battery voltage, discharge current and battery temperature
  • Lower quiescent current and leakage current
    • 20µA quiescent current in standby mode
    • < 1µA shutdown current
    • < 1µA leakage current for pins connected to the back up battery
  • EMI mitigation
    • 400kHz fix switching frequency
    • Optional programmable spread spectrum
  • 3mm × 4mm 25-pin package with wettable flank

  • AEC-Q100 qualified for automotive applications
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • I2C programmable LDO charger
    • Supports charger input voltage (VOUT Pin) up to 21V, absmax up to 40V to withstand load dump
    • Supports multi-chemistry battery charging profile of 1-5 cell NiMH, 1-2 cell Li-Ion, LiFePO4, 1-4 cell super capacitor
    • Programmable charging current 50mA and 100mA
    • Wide battery voltage operating range 0V to 12V
    • Programmable charging timer up to 32h
    • NTC thermistor input to monitor battery temperature
  • Programmable boost converter supporting 12V car battery back-up power system
    • Programmable output voltage range: 5V to 12V
    • Programmable boost average input current limit from 5A to 15A
    • Back-up battery (BUB) voltage in boost mode: 0.5V to 12V
      • Minimum 3V for start up
      • Can start up at 1V when Vout>5V
    • <20us automatic transition into the boost mode when 12V system voltage drops
  • Backup battery State-of-Health(SOH) detection
    • Adjustable discharge current from 0A to 1.5A
    • Multi-signal analog output(AVI pin) of battery voltage, discharge current and battery temperature
  • Lower quiescent current and leakage current
    • 20µA quiescent current in standby mode
    • < 1µA shutdown current
    • < 1µA leakage current for pins connected to the back up battery
  • EMI mitigation
    • 400kHz fix switching frequency
    • Optional programmable spread spectrum
  • 3mm × 4mm 25-pin package with wettable flank

The TPS61381-Q1 is 400kHz, 40V, 15A automotive bi-directional boost converter/ LDO charger with battery state of health detection function designed for back-up power systems like TBOX or e-call. The converter supports absmax voltage up to 40V on VOUT pin to withstand load-dump condition and supports direct connection with 12V car battery.

The TPS61381-Q1 integrates I2C configurable LDO charger supporting NiMH, Li-Ion, LiFePO4, super capacitor.

TPS61381-Q1 integrates boost function that operates over 0.5V to 12V BUB voltage and 5-12V output voltage. The device applies fix frequency peak current control scheme with optional spread spectrum to minimize EMI. The boost function supports 5A-15A programmable average current limit.

The TPS61381-Q1 integrates battery health detection feature which discharge the battery with a constant current and detects the voltage drop across the battery internal resistance.

The TPS61381-Q1 is available in a 3mm × 4mm QFN package with wettable flank. Care must be taken when designing the PCB with TPS61381-Q1, view for details.

The TPS61381-Q1 is 400kHz, 40V, 15A automotive bi-directional boost converter/ LDO charger with battery state of health detection function designed for back-up power systems like TBOX or e-call. The converter supports absmax voltage up to 40V on VOUT pin to withstand load-dump condition and supports direct connection with 12V car battery.

The TPS61381-Q1 integrates I2C configurable LDO charger supporting NiMH, Li-Ion, LiFePO4, super capacitor.

TPS61381-Q1 integrates boost function that operates over 0.5V to 12V BUB voltage and 5-12V output voltage. The device applies fix frequency peak current control scheme with optional spread spectrum to minimize EMI. The boost function supports 5A-15A programmable average current limit.

The TPS61381-Q1 integrates battery health detection feature which discharge the battery with a constant current and detects the voltage drop across the battery internal resistance.

The TPS61381-Q1 is available in a 3mm × 4mm QFN package with wettable flank. Care must be taken when designing the PCB with TPS61381-Q1, view for details.

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기술 자료

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유형 직함 날짜
* Data sheet TPS61381-Q1 Automotive 400kHz, 40V, 15A Boost Converter with LDO Charger and Battery State of Health Detection datasheet PDF | HTML 2025/03/24
Functional safety information TPS61381-Q1, TPS61382-Q1, TPS61383-Q1, and TPS61382A-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2025/12/08
Application note TPS61381-Q1 Schematic and Layout Guideline PDF | HTML 2025/12/01

설계 및 개발

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평가 보드

TPS61381QEVM-126 — TPS61381-Q1 평가 모듈

TPS61381QEVM-126은 0V~12V의 넓은 백업 배터리 전압 범위와 0V~40V의 주 배터리(VBAT 포트) 전압 범위에서 작동하여 양방향 작동을 달성합니다. EVM은 3.6V BUB에서 최대 7.5A 부하의 출력과 부스트 모드에서 6.2V 출력을 지원하며 충전기 모드에서 50~100mA의 충전 전류를 지원합니다. TPS61381QEVM-126은 부스트 모드에서 2.5% 이상의 출력 전압 조정 정확도를 지원하고 충전기 모드에서 1% 이상의 전압 정확도를 지원할 수 있습니다. 장치 기능은 I2C 인터페이스를 사용하여 조정할 (...)

사용 설명서: PDF | HTML
TI.com에서 구매 불가
시뮬레이션 모델

TPS61381-Q1 PSPICE Transient Model

SLVMED1.ZIP (1274 KB) - PSpice Model
계산 툴

TPS61381-DESIGN-CALCULATION-TOOL TPS61381-Q1 Calculation Tool

This calculation tool is for converter TPS61381-Q1
지원되는 제품 및 하드웨어

지원되는 제품 및 하드웨어

제품
AC/DC 및 DC/DC 컨버터(통합 FET)
TPS61381-Q1 LDO 충전기 및 배터리 상태 감지를 지원하는 400kHz 부스트 컨버터
패키지 CAD 기호, 풋프린트 및 3D 모델
WQFN-FCRLF (RAV) 24 Ultra Librarian

주문 및 품질

포함된 정보:
  • RoHS
  • REACH
  • 디바이스 마킹
  • 납 마감/볼 재질
  • MSL 등급/피크 리플로우
  • MTBF/FIT 예측
  • 물질 성분
  • 인증 요약
  • 지속적인 신뢰성 모니터링
포함된 정보:
  • 팹 위치
  • 조립 위치

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