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電池管理 IC
電池充電器 IC

BQ24133

現行

具外部電源路徑的獨立式 1-3 芯 2.5A 同步降壓電池充電器

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產品規格表

BQ24133

現行
產品規格表 立即訂購

產品詳細資料

Number of series cells 1, 2, 3 Charge current (max) (A) 2.5 Vin (max) (V) 17 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 13.5 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85
Number of series cells 1, 2, 3 Charge current (max) (A) 2.5 Vin (max) (V) 17 Cell chemistry Li-Ion/Li-Polymer Battery charge voltage (min) (V) 4.2 Battery charge voltage (max) (V) 13.5 Absolute max Vin (max) (V) 20 Control topology Switch-Mode Buck Control interface Standalone (RC-Settable) Features BAT temp thermistor monitoring (hot/cold profile), IC thermal regulation, IINDPM (Input current limit), Input OVP, Power Path Vin (min) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGY) 24 19.25 mm² 5.5 x 3.5
  • 1.6-MHz Synchronous switched-mode charger with 2.5-A integrated N-MOSFETs
  • Up to 92% efficiency
  • 30-V Input rating with adjustable overvoltage protection
    • 4.5-V to 17-V Input operating voltage
  • Battery charge voltage
    • 1-Cell, 2-cell, or 3-cell with 4.2 V/cell
  • High integration
    • Automatic Power Path selector between adapter and battery
    • Dynamic power management
    • Integrated 20-V switching MOSFETs
    • Integrated bootstrap diode
    • Internal digital soft start
  • Safety
    • Thermal regulation loop throttles back current to limit TJ = 120°C
    • Thermal shutdown
    • Battery thermistor sense hot/cold charge suspend and battery detect
    • Adjustable input overvoltage protection
    • Cycle-by-cycle current limit
  • Accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±6% Input current regulation
  • <15-µA Battery current with adapter removed
  • <1.5-mA Input current with adapter present and charge disabled package
  • 1.6-MHz Synchronous switched-mode charger with 2.5-A integrated N-MOSFETs
  • Up to 92% efficiency
  • 30-V Input rating with adjustable overvoltage protection
    • 4.5-V to 17-V Input operating voltage
  • Battery charge voltage
    • 1-Cell, 2-cell, or 3-cell with 4.2 V/cell
  • High integration
    • Automatic Power Path selector between adapter and battery
    • Dynamic power management
    • Integrated 20-V switching MOSFETs
    • Integrated bootstrap diode
    • Internal digital soft start
  • Safety
    • Thermal regulation loop throttles back current to limit TJ = 120°C
    • Thermal shutdown
    • Battery thermistor sense hot/cold charge suspend and battery detect
    • Adjustable input overvoltage protection
    • Cycle-by-cycle current limit
  • Accuracy
    • ±0.5% Charge voltage regulation
    • ±5% Charge current regulation
    • ±6% Input current regulation
  • <15-µA Battery current with adapter removed
  • <1.5-mA Input current with adapter present and charge disabled package

The BQ24133 device is a highly integrated stand-alone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current, charge current, and voltage. The BQ24133 closely monitors the battery pack temperature to allow charge only in a preset temperature window. The BQ24133 charges one, two, or three cells (selected by CELL pin) at a fixed 4.2 V/cell.

The BQ24133 charges the battery in three phases: preconditioning, constant current, and constant voltage.

The BQ24133 provides power path selector gate driver ACDRV/CMSRC on input NMOS pair ACFET (Q1) and RBFET (Q2), and BATDRV on a battery PMOS device (Q3). When the qualified adapter is present, the system is directly connected to the adapter. Otherwise, the system is connected to the battery. In addition, the power path prevents battery from boosting back to the input.

The BQ24133 charges the battery from a DC source as high as 17 V, including a car battery. The input overvoltage limit is adjustable through the OVPSET pin. The AVCC, ACP, and ACN pins have a 30-V rating. When a high-voltage DC source is inserted, Q1 and Q2 remain off to avoid high-voltage damage to the system.

For 1-cell applications where the battery is not removable, the system can be directly connected to the battery to simplify the power path design and reduce the cost. With this configuration, the battery can automatically supplement the system load if the adapter is overloaded.

The BQ24133 is available in a 24-pin, 5.5-mm × 3.5-mm thin VQFN package.

The BQ24133 device is a highly integrated stand-alone Li-Ion and Li-Polymer switched-mode battery charger with two integrated N-channel power MOSFETs. The device offers a constant-frequency synchronous PWM controller with high accuracy regulation of input current, charge current, and voltage. The BQ24133 closely monitors the battery pack temperature to allow charge only in a preset temperature window. The BQ24133 charges one, two, or three cells (selected by CELL pin) at a fixed 4.2 V/cell.

The BQ24133 charges the battery in three phases: preconditioning, constant current, and constant voltage.

The BQ24133 provides power path selector gate driver ACDRV/CMSRC on input NMOS pair ACFET (Q1) and RBFET (Q2), and BATDRV on a battery PMOS device (Q3). When the qualified adapter is present, the system is directly connected to the adapter. Otherwise, the system is connected to the battery. In addition, the power path prevents battery from boosting back to the input.

The BQ24133 charges the battery from a DC source as high as 17 V, including a car battery. The input overvoltage limit is adjustable through the OVPSET pin. The AVCC, ACP, and ACN pins have a 30-V rating. When a high-voltage DC source is inserted, Q1 and Q2 remain off to avoid high-voltage damage to the system.

For 1-cell applications where the battery is not removable, the system can be directly connected to the battery to simplify the power path design and reduce the cost. With this configuration, the battery can automatically supplement the system load if the adapter is overloaded.

The BQ24133 is available in a 24-pin, 5.5-mm × 3.5-mm thin VQFN package.
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類型 標題 日期
* Data sheet BQ24133 1.6-MHz Synchronous Switched-Mode Li-Ion and Li-Polymer Stand-Alone datasheet (Rev. D) 2020年 9月 24日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日
Application note BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 2019年 12月 31日
Product overview Battery Management Solutions for Point of Sale Systems 2014年 8月 18日
Application note How to Review a Multicell Switching Charger Schematic 2011年 9月 21日
User guide bq24133 User's Guide 2010年 12月 21日

設計與開發

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開發板

BQ24133EVM-715-15V — 用於 BQ24133 同步切換模式鋰離子和鋰聚合物電池充電器的評估模組

The BQ24133EVM-715-15V (-002) assists users in evaluating the bq24133 synchronous battery charger. The bq24133 is highly integrated stand-alone Li-ion and Li-polymer switch-mode battery charge controllers with two integrated N-channel power MOSFETs and power path selector gate driver. It offers a (...)

使用指南: PDF
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開發板

BQ24133EVM-715-5V — 用於 BQ24133 同步切換模式鋰離子和鋰聚合物電池充電器的評估模組

The BQ24133EVM-715-5V (-001) assists users in evaluating the bq24133 synchronous battery charger. The bq24133 is highly integrated stand-alone Li-ion and Li-polymer switch-mode battery charge controllers with two integrated N-channel power MOSFETs and power path selector gate driver. It offers a (...)

使用指南: PDF
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計算工具

SLUC244 — bqswitcherII calculation tools V1.2

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參考設計

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PMP9491 is a 30W highly efficient and compact Portable Speaker/Audio Boom Box reference Design which can be used in 15W +15W Stereo or 30W Woofer Applications. The Power Source for the Design is 1 or 2 Li ion in Series . The design is broadly divided into three main stages:
  1. Highly efficient (...)
Test report: PDF
電路圖: PDF
參考設計

PMP4397 — 符合 EMI 的整合式 1-3S 獨立電池充電器參考設計

The PMP4397 is a battery charger module reference design suitable for 2-cell battery applications with a DC input of 4.5V – 15V. Detailed data for radiated emissions compliance is provided. The cell number could be trimmed by resistors over a range from 1-cell to 3-cells. A typical (...)
Test report: PDF
電路圖: PDF
參考設計

TIDA-00027 — 1.6 MHz 同步切換式鋰離子/鋰聚合物獨立電池充電器參考設計

This reference design is highly integrated stand-alone Li-ion and Li-polymer switch-mode battery charge solution with two integrated N-channel power MOSFETs and a power path selector gate driver. It offers a constant-frequency synchronous PWM controller with high accuracy regulation of input (...)
Test report: PDF
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