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BQ25692-Q1

VORSCHAU

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BQ25692-Q1

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Produktdetails

Rating Automotive Number of series cells 1, 2, 3, 4, 5, 6, 7 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, SuperCap Charge current (max) (A) 3 Features AEC-Q100 Automotive Qual, BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 2.9 Vin (max) (V) 45 Absolute max Vin (max) (V) 45 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 33 Control interface I2C, Standalone (RC-Settable) Operating temperature range (°C) -40 to 125
Rating Automotive Number of series cells 1, 2, 3, 4, 5, 6, 7 Cell chemistry Li-Ion/Li-Polymer, Lithium Phosphate/LiFePO4, SuperCap Charge current (max) (A) 3 Features AEC-Q100 Automotive Qual, BAT temp thermistor monitoring (JEITA profile), BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, USB C/PD compatible, USB OTG integrated, VINDPM (Input voltage threshold to maximize adaptor power) Vin (min) (V) 2.9 Vin (max) (V) 45 Absolute max Vin (max) (V) 45 Control topology Switch-Mode Buck-boost Battery charge voltage (min) (V) 0 Battery charge voltage (max) (V) 33 Control interface I2C, Standalone (RC-Settable) Operating temperature range (°C) -40 to 125
WQFN-HR (RBA) 26 14 mm² (3.5 mm × 4 mm)
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
  • High integration buck-boost forward (sink) mode charger for 1- to 7cell Li-Ion batteries supporting USB PD profile with integrated switching MOSFETs and loop compensation
  • Highly efficient
    • Programmable switching frequency from 450kHz to 2.2MHz
    • Bypass mode for >98.0% efficiency USB-PD PPS direct battery charging at 20V, 3A
    • 96.0% efficient: 19V battery at 3A from 20V
    • 95.2% converter efficiency charging 15.2V battery at 3A from 20V
    • Selectable PFM with out-of-audio (OOA) operation for light load efficiency improvement
  • Supports a wide range of input sources with 2.5V to 34V operating range and 45V absolute maximum rating
    • Support VIN down to 2.5V with SRN > 3.2V
    • USB-PD input
    • Input voltage dynamic power management (VINDPM) up to 34V to avoid input crashing
    • Optional input current dynamic power management (IINDPM) up-to 3.3A for maximum power limit
  • I2C controlled for excellent system performance with resistor-programmable option
    • Hardware selectable default cell count, charge voltage, input and charge current limits
    • 3.3A charging current with 20mA resolution
  • Reverse/OTG (source) mode powers input port from battery
    • 3.5V to 34V reverse output voltage with 20mV resolution to support USB-PD PPS
    • Up to 3.3A reverse output current regulation with 20mA resolution to support USB-PD PPS
  • Low quiescent current
    • 6.5µA for battery only operation
    • 700µA for converter switching operation
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±5% input and output current regulation
  • Safety
    • Input and battery OVP
    • Thermal regulation and thermal shutdown
    • Converter MOSFETs OCP
    • Charging safety timer
  • AEC-Q100 qualified for automotive applications
    • Temperature grade 1: –40°C ≤ TA ≤ 125°C
  • High integration buck-boost forward (sink) mode charger for 1- to 7cell Li-Ion batteries supporting USB PD profile with integrated switching MOSFETs and loop compensation
  • Highly efficient
    • Programmable switching frequency from 450kHz to 2.2MHz
    • Bypass mode for >98.0% efficiency USB-PD PPS direct battery charging at 20V, 3A
    • 96.0% efficient: 19V battery at 3A from 20V
    • 95.2% converter efficiency charging 15.2V battery at 3A from 20V
    • Selectable PFM with out-of-audio (OOA) operation for light load efficiency improvement
  • Supports a wide range of input sources with 2.5V to 34V operating range and 45V absolute maximum rating
    • Support VIN down to 2.5V with SRN > 3.2V
    • USB-PD input
    • Input voltage dynamic power management (VINDPM) up to 34V to avoid input crashing
    • Optional input current dynamic power management (IINDPM) up-to 3.3A for maximum power limit
  • I2C controlled for excellent system performance with resistor-programmable option
    • Hardware selectable default cell count, charge voltage, input and charge current limits
    • 3.3A charging current with 20mA resolution
  • Reverse/OTG (source) mode powers input port from battery
    • 3.5V to 34V reverse output voltage with 20mV resolution to support USB-PD PPS
    • Up to 3.3A reverse output current regulation with 20mA resolution to support USB-PD PPS
  • Low quiescent current
    • 6.5µA for battery only operation
    • 700µA for converter switching operation
  • High accuracy
    • ±0.5% charge voltage regulation
    • ±5% input and output current regulation
  • Safety
    • Input and battery OVP
    • Thermal regulation and thermal shutdown
    • Converter MOSFETs OCP
    • Charging safety timer

The BQ25692-Q1 is a fully-integrated, switch-mode buck-boost charger for 1 cell to 7 cell Li-ion or Li-polymer batteries. The wide input voltage range from 2.5V to 34V supports applications powered from batteries, standard USB-PD adapters, and high voltage dedicated DC adapters. The device integrates four switching MOSFETs (Q1, Q2, Q3, Q4) and all the loop compensation of the buck-boost converter for small design size with simple design. The device also supports the full input (sink) and output (reverse or source mode) voltage ranges for USB Type-C and USB power delivery (USB-PD) applications.

The BQ25692-Q1 is a fully-integrated, switch-mode buck-boost charger for 1 cell to 7 cell Li-ion or Li-polymer batteries. The wide input voltage range from 2.5V to 34V supports applications powered from batteries, standard USB-PD adapters, and high voltage dedicated DC adapters. The device integrates four switching MOSFETs (Q1, Q2, Q3, Q4) and all the loop compensation of the buck-boost converter for small design size with simple design. The device also supports the full input (sink) and output (reverse or source mode) voltage ranges for USB Type-C and USB power delivery (USB-PD) applications.
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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt BQ25692-Q1: Automotive, Standalone/I2 C Controlled, 34V, 1-7 Cell Li-Ion, 3.3A Buck-Boost Bidirectional Battery Charger With USB-PD 3.0 OTG Output datasheet (Rev. A) PDF | HTML 26.08.2026
Zertifikat BQ25692-Q1EVM EU Declaration of Conformity (DoC) 09.10.2025

Design und Entwicklung

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