Ti Bq24650 Battery Power Charger Control Management Integrated Circuit IC Voltage Monitor Protector Electronic Components Chip

• shape: Flat
• Conductive Type: Bipolar Integrated Circuit
• Integration: MSI
• Technics: Semiconductor IC
• Application: Standard Generalized Integrated Circuit
• Type: Digital / Analog IC
• Rating: Catalog
• RoHS: Yes
• Reach: Yes
• Lead Finish / Ball Material: Nipdau / Snagcu
• Delivery Time: 1-3 Days
• Transport Package: Small Large T&R
• Specification: 9 mm² 3 x 3
• Trademark: TI
• HS Code: 8542399000
• Production Capacity: 60000

Product Description

Packaging information

Package | PinsVQFN (RVA) | 16

Operating temperature range (°C)-40 to 85

Package qty | Carrier250 | SMALL T&R

Features for the BQ24650

• Maximum Power Point Tracking (MPPT) capability by input Voltage regulation
• Programmable MPPT setting
• 5-V to 28-V Input solar panel
• 600-kHz NMOS-NMOS Synchronous buck controller
• Resistor programmable float voltage
• Accommodates Li-Ion/Polymer, LiFePO4, lead acid chemistries
• Accuracy
  • ±0.5% Charge voltage regulation
  • ±3% Charge current regulation
  • ±0.6% Input voltage regulation
• High Integration
  • Internal loop compensation
  • Internal digital soft start
• Safety
  • Input overvoltage protection
  • Battery temperature-sensing
  • Battery absent detection
  • Thermal shutdown
• Charge status outputs for LED or host processor
• Charge enable on MPPSET pin
• Automatic sleep mode for low power consumption
  • < 15-µA OFF-state battery discharge current
• Small 3.5 × 3.5 mm² 16-pin QFN package

Description for the BQ24650

The BQ24650 device is a highly integrated switch-mode battery charge controller. It provides input voltage regulation, which reduces charge current when input voltage falls below a programmed level. When the input is powered by a solar panel, the input regulation loop lowers the charge current so that the solar panel can provide maximum power output.

The BQ24650 offers a constant-frequency synchronous PWM controller with high accuracy current and voltage regulation, charge preconditioning, charge termination, and charge status monitoring.

The BQ24650 charges the battery in three phases: pre-conditioning, constant current, and constant voltage. Charge is terminated when the current reaches 1/10 of the fast charge rate. The pre-charge timer is fixed at 30 minutes. The BQ24650 automatically restarts the charge cycle if the battery voltage falls below an internal threshold and enters a low quiescent current sleep mode when the input voltage falls below the battery voltage.

The BQ24650 supports a battery from 2.1 V to 26 V with VFB set to a 2.1-V feedback reference. The charge current is programmed by selecting an appropriate sense resistor. The BQ24650 is available in a 16 -pin, 3.5 mm × 3.5 mm² thin QFN package.