HL7132D
Dual-Phase 30W Charge Pump Charger with 1:2 Reverse Boost Mode
Overview
The HL7132D is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitive converter, a reverse blocking MOSFET (QRB FET) and shows 97.37% efficiency at 4.5V output and 4A current with flying capacitor,1×22µF, per phase at fSW=1.1MHz.
The device features two different switching modes, 2:1 and 1:2 CP mode. The 2:1 CP mode allows the output voltage, VOUT, to be around half of the input voltage, VIN, and the output current to be double of the input current. In 1:2 CP mode, a voltage at VIN will be double of VOUT voltage.
The HL7132D provides CC (Constant Current) and CV (Constant Voltage) regulation through controlling the QRB FET for a safe charging operation in 2:1 CP mode. CC regulation is controlled through a close loop of the input current sensing or battery current sensing and CV regulation is controlled through a close loop of the battery voltage sensing. In addition, HL7132D also supports thermal regulation loop in case CV/CC loop causing device over-heat during regulation operating in 2:1 CP mode.
For more detailed description of the device, please download a product brief.
Features
- 20V AMR on VIN pin
- 5.5V to 11.7V Operational VIN voltage
- 5.5V Max operational output voltage
- Dual phase switched capacitor architecture
- Optimized for 50% duty for both 2:1 and 1:2 mode
- 2:1 Charge pump mode (CP mode)
- Continuous 6A output
- 1:2 Reverse charge pump mode (CP mode)
- Continuous 1.5A output
- Regulation loop for charging operation through QRB FET control in 2:1 CP Mode
- Input current regulation (IIN_REG)
- Battery voltage regulation (VVBAT_REG)
- Battery current regulation (IBAT_REG)
- Thermal regulation (TDIE_REG)
- 97.37% Efficiency for VOUT=4.5V_5A with 1×22µF per phase at fSW = 1.1MHz
- Selectable switching frequency from 500kHz to 1.6MHz
Block Diagram
For more information or a full datasheet request, please contact the factory at sales@hmisemi.com.