Datasheet

BQ24727 Datasheet PDF – Battery SMBus Charge Controller

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Part Number: BQ24727

Function: Battery SMBus Charge Controller

Package: QFN-20 Type

Manufacturer: TI

Images

BQ24727 datasheet

Description

The BQ24727 is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications. SMBus controlled input current, charge current, and charge voltage DACs allow for high regulation accuracies that can be programmed by the system power management micro-controller.

The device uses two charge pumps to separately drive N-channel MOSFETs (ACFET RBFET, and BATFET) for automatic system power source selection. SMBus controlled input current, charge current, and charge voltage digital-to-analog converters (DACs) allow for very high-regulation accuracies that can be easily programmed by the system power management microcontroller.

Pinout

BQ24727 pinout

Features

  • SMBus-controlled synchronous buck battery charger
  • Supports multi-chemistry battery charging
  • Programmable charge voltage, current, and input current via DACs
  • Dual charge pump drives for ACFET, RBFET, and BATFET NMOS switches
  • Automatic power source selection between adapter and battery
  • Real-time current limiting via ILIM pin
  • Integrated loop compensation for simplified design
  • Programmable adapter detection and status indication

Typical Circuit Usage

  • Notebook and laptop battery charging systems
  • Power management in portable electronics
  • Embedded battery-powered systems
  • Industrial battery charging controllers
  • Smart battery charger modules

How to Choose This Part

  • Select for SMBus-controlled intelligent battery charging applications
  • Suitable for multi-cell lithium-ion or similar battery chemistries
  • Ideal when system-level power path control is required
  • Consider firmware capability for SMBus control and configuration
  • Evaluate external MOSFET and thermal design requirements

Applications

  • Laptops and notebooks
  • Portable battery-powered devices
  • Industrial handheld equipment
  • Smart battery charging systems
  • Embedded power management systems

Alternative / Equivalent Products

  • BQ24725A
  • BQ24735
  • ISL6251
  • MAX8731
  • LTC4011

Other data sheets are available within the file: BQ727, BQ24727RGRR

BQ24727 Datasheet PDF Download

BQ24727 pdf

BQ24707 Datasheet

SR23 Diode Datasheet – 30V, 2A, Rectifier

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Part Number: SR23

Function: 30V, 2.0A,  Schottky Barrier Diode

Package: DO-214AC, Surface Mount

Manufacturer: Won-Top Electronics

Image and Pinouts:

SR23 datasheet

 

Description

The SR23 is a surface-mount Schottky barrier rectifier rated at 2.0 A and a reverse voltage of ~30 V in an SMA/DO-214AC package. It features low forward voltage drop, fast switching, and surge overload capability. It is typically used in DC power supply rectification, free-wheeling circuits, and polarity protection in low-voltage systems.

Features

1. Schottky Barrier Chip

2. Ideally Suited for Automatic Assembly

3. Low Power Loss, High Efficiency.

Absolute Maximum Ratings (Ta = 25 °C)

Parameter Symbol Value Unit
Reverse voltage VRRM 30 V
Average forward current IO 2.0 A
Surge forward current (8.3 ms half-sine) IFSM 50 A
Forward voltage @ I = 2 A VF 0.50 V
Reverse leakage @ rated VRRM IR 0.5 mA
Junction and storage temperature TJ,stg –55 to +125 °C

Mechanical Data:

1. Case: SMA/DO-214AC, Molded Plastic

2. Terminals: Solder Plated, Solderable per MIL-STD-750, Method 2026

3. Polarity: Cathode Band or Cathode Notch

4. Marking: Type Number

5. Weight: 0.064 grams (approx.)

Applications

  • DC-DC converters and switch-mode power supplies
  • Free-wheeling diode in inductive circuits
  • Reverse polarity protection in low-voltage systems
  • Clamping and catch diode in voltage regulation circuits
  • High-frequency rectification in low voltage power modules

Alternative / Equivalent Products

  • SS14 (1 A, 40 V, SMD Schottky)
  • SR14 (1 A, 40 V, SMA Schottky)
  • MBRS130LT3G (1 A, 30 V, SOD-123)
  • SS30 (3 A, 30 V, SMD Schottky)
  • 1N5819 (1 A, 40 V, through-hole Schottky)

Other data sheets are available within the file: SR210, SR22, SR24, SR25

SR23 Datasheet PDF Download


SR23 pdf