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BQ24133

AKTIV

Eigenständiger 1–3-Zellen-Synchron-Abwärts-Batterielader mit 2,5 A und externem Leistungszweig

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Datenblatt

BQ24133

AKTIV
Datenblatt Jetzt bestellen

Produktdetails

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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Technische Dokumentation

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Typ Titel Datum
* Data sheet BQ24133 1.6-MHz Synchronous Switched-Mode Li-Ion and Li-Polymer Stand-Alone datasheet (Rev. D) 24 Sep 2020
Application note BQ241xx/BQ246xx Selection of Multi-Cell Standalone Switching Battery Chargers 31 Dez 2019
Product overview Battery Management Solutions for Point of Sale Systems 18 Aug 2014
Application note How to Review a Multicell Switching Charger Schematic 21 Sep 2011
User guide bq24133 User's Guide 21 Dez 2010

Design und Entwicklung

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Evaluierungsplatine

BQ24133EVM-715-15V — Evaluierungsmodul für BQ24133 Synchron-Switchmode-Li-Ion- und Li-Polymer-Batterieladung

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 (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Evaluierungsplatine

BQ24133EVM-715-5V — Evaluierungsmodul für BQ24133 Synchron-Switchmode-Li-Ion- und Li-Polymer-Batterieladung

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 (...)

Benutzerhandbuch: PDF
Nicht verfügbar auf TI.com
Berechnungstool

SLUC244 — bqswitcherII calculation tools V1.2

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