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TPS61381-Q1

現行

具有 LDO 充電器與電池健康狀態偵測的 400kHz 升壓轉換器

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產品規格表

TPS61381-Q1

現行
產品規格表 立即訂購

產品詳細資料

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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類型 標題 日期
* Data sheet TPS61381-Q1 Automotive 400kHz, 40V, 15A Boost Converter with LDO Charger and Battery State of Health Detection datasheet PDF | HTML 2025年 3月 24日
Functional safety information TPS61381-Q1, TPS61382-Q1, TPS61383-Q1, and TPS61382A-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML 2025年 12月 8日
Application note TPS61381-Q1 Schematic and Layout Guideline PDF | HTML 2025年 12月 1日

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開發板

TPS61381QEVM-126 — TPS61381-Q1 評估模組

TPS61381QEVM-126 可在 0V 至 12V 的廣泛備用電池電壓範圍及 0V-40V 的主電池 (VBAT 埠) 電壓範圍中運作，以實現雙向運作。EVM 在升壓模式下以 3.6V BUB 和 6.2V 輸出支援高達 7.5A 負載的輸出，並在充電器模式下支援 50-100mA 充電電流。TPS61381QEVM-126 可在升壓模式下支援優於 2.5% 的輸出電壓調節準確度，並在充電器模式下支援優於 1% 的電壓準確度。裝置功能可使用 I2C 介面調整。

使用指南: PDF | HTML
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模擬型號

TPS61381-Q1 PSPICE Transient Model

SLVMED1.ZIP (1274 KB) - PSpice Model
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計算工具

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

This calculation tool is for converter TPS61381-Q1
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AC/DC 和 DC/DC 轉換器 (整合式 FET)
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