# BQ25792RQMR (Component)
## Description
Charger IC Lithium Ion/Polymer 29-VQFN-HR (4x4)
The BQ25792 is a fully integrated switch-mode
buck-boost charger for 1-4 cell Li-ion batteries
and Li-polymer batteries. The integration includes
4 switching MOSFETs (Q1, Q2, Q3, Q4), input
and charging current sensing circuits, the battery
FET (QBAT) and all the loop compensation of the
buck-boost converter. It uses NVDC power path
management, regulating the system slightly above the
battery voltage without dropping below a configurable
minimum system voltage. When system power
exceeds the input source rating, battery supplement
mode supports the system without overloading the
input source. BQ25792 supports the full input and
output (OTG) voltage ranges for USB Type-C™ and
USB power delivery (USB-PD) applications.
• High power density, high integration buck-boost
charger for 1-4 cell batteries supporting any USB
PD 3.0 profile
– Integrates four switching MOSFETs, BATFET
– Integrates input and charging current sensing
• Highly efficient
– 750-kHz or 1.5-MHz switching frequencies
– 5-A charging current with 10-mA resolution
• 96.5% efficient: 16-V battery at 3A from 20V
• Supports a wide range of input sources
– 3.6-V to 24-V wide input operating voltage
range with 30-V absolute maximum rating
– Maximum power tracking with input voltage
dynamic power management (VINDPM) up
to 22 V and input current dynamic power
management (IINDPM) up to 3.3 A
– Detects USB BC1.2, SDP, CDP, DCP, HVDCP
and non-standard adapters
• Dual-input power mux controller (optional) for
source selection
• Narrow voltage DC (NVDC) power path
management
• Powers USB port from battery (USB OTG)
– 2.8-V to 22-V OTG output voltage with 10-mV
resolution to support USB-PD PPS
– OTG output current regulation up to 3.32 A with
40-mA resolution
• Flexible autonomous and I2C mode for optimal
system performance
• Integrated 16-bit ADC for voltage, current, and
temperature monitoring
• Low battery quiescent current
– 21 µA for battery only operation
– 600 nA in Charger Shutdown Mode
• High accuracy
– +0.65% to -0.85% charge voltage regulation for
2S-4S batteries
– ±5% charge current regulation
– ±5% input current regulation
• Safety
– Thermal regulation and thermal shutdown
– Input/battery OVP and OCP
– Converter MOSFETs OCP
– Charging safety timer
• Package
– 29-Pin 4 mm × 4 mm QFN
#CommonPartsLibrary #IntegratedCircuit #PowerManagement #Battery-Charger
## Component Details
- **Owner:** lcsc
- **Created:** 10/30/2024
- **Last Updated:** 6/4/2026
- **Visibility:** Public
- **Manufacturer Name:** TI(德州仪器)
- **Package or Case Code:** QFN-29_L4.0-W4.0-P0.40-TL-BQ25792RQMR
- **License:** https://creativecommons.org/licenses/by/4.0/
- **JLCPCB Part Class:** Extended Part
- **Manufacturer Part Number:** BQ25792RQMR
- **Part Type:** Power Management
- **LCSC Part Number:** C2862876
- **Symbol Style:** parametric-v1
- **Datasheet URL:** https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/8929/BQ25792RQMR.pdf
- **Used in:** 54 projects
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/bq25792rqmr/texas-instruments?utm_currency=USD®ion=asia) | N/A | N/A |
| [Digi-Key](https://www.digikey.com/en/products/detail/texas-instruments/BQ25792RQMR/13577777) | N/A | N/A |
| [HQonline](https://www.hqonline.com/product-detail/sensor-and-detector-interface-chips-ti-bq25792rqmr-2500408686) | $1.66727 | 94 |
| [LCSC](https://www.lcsc.com/product-detail/C2862876.html) | $1.8466 | 3.6K |
| [Mouser](https://www.mouser.com/ProductDetail/Texas-Instruments/BQ25792RQMR?qs=81r%252BiQLm7BSrfMJlEm4Auw%3D%3D) | $6.99 | 35 |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** Texas Instruments
- **MPN:** BQ25792RQMR
- **Mount Type:** Standard
- **Package / Case Code:** 16-VQFN
- **Pin Count:** 29
- **Logic Function:** Monitor
## Pins
| Pin | Name | Type |
|-----|------|------|
| 23 | BAT | |
| 28 | SW1 | |
| 4 | BTST1 | |
| 25 | SYS | |
| 3 | VBUS | |
| 5 | REGN | |
| 19 | BTST2 | |
| 29 | PMID | |
| 26 | SW2 | |
| 22 | BAT | |
| 2 | VBUS | |
| 20 | PROG | |
| 11 | ACDRV1 | |
| 17 | ILIM_HIZ | |
| 10 | ACDRV2 | |
| 13 | ~{CE} | |
| 12 | ~{QON} | |
| 24 | SDRV | |
| 6 | D+ | |
| 15 | SDA | |
| 14 | SCL | |
| 7 | D- | |
| 1 | STAT | |
| 21 | ~{INT} | |
| 18 | BATP | |
| 8 | VAC2 | |
| 9 | VAC1 | |
| 16 | TS | |
| 27 | GND | |
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