HL7138

The HL7138 is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitor converter and reverse blocking MOSFET (QRB FET). The HL7138 has 97.4% efficiency at 4.5V output and 5A current with 2x22uF per phase. The switched capacitor converter architecture and the integrated FETs in device are optimized to enable 50% duty cycle operation under charge pump (CP) mode. The CP mode allows output voltage (VOUT) to be around half of the input voltage (VIN) and output current to double the input current, reducing input power cable loss and limiting temperature rise in application. The dual-phase architecture reduces input capacitance requirements and input voltage ripple. Besides the CP mode, the device also has bypass (BP) mode. The BP mode allows VIN forwardly passing through internal power FETs to VOUT without any conversion. The HL7138 provides CC (Constant Current) and CV (Constant Voltage) regulations through controlling the QRB FET for safe charging operation. The CC regulation is controlled through a closed loop of input current sensing or battery current sensing. The CV regulation is controlled through a closed loop of battery voltage sensing. In addition, the HL7138 also supports thermal regulation loop in case the CV/CC regulation causes overheating device.

HL7138 is a low-voltage fast direct charger for single-cell lithium-ion and lithium polymer batteries. This device integrates a dual-phase switched capacitor converter and a reverse-blocking MOSFET (QRB FET). The efficiency of HL7138 at 4.5V output and 5A current is 97.4%, with each phase using 2x22uF. The switched capacitor converter architecture and the integrated FET in the device are optimized to achieve 50% duty cycle operation in charge pump (CP) mode. The CP mode allows the output voltage (VOUT) to be approximately half of the input voltage (VIN), with the output current being twice the input current, reducing losses in the input power line and limiting temperature rise in applications. The dual-phase structure reduces input capacitance requirements and input voltage ripple. In addition to CP mode, the device also features bypass (BP) mode. BP mode allows VIN to be forwarded through the internal power FET to VOUT without any conversion. HL7138 provides CC (constant current) and CV (constant voltage) regulation by controlling the QRB FET for safe charging operation. CC regulation is achieved through closed-loop control of input current sensing or battery current sensing. CV regulation is controlled through closed-loop battery voltage sensing. Additionally, HL7138 supports a thermal regulation loop to prevent overheating of the device due to CV/CC regulation. HL7138 has all the necessary protection measures to ensure safe operation. The device includes OTP (over-temperature protection), VIN UVP/OVP, AIN OCP/UCP, VOUT OVP/UVP, VBAT OVP, IBAT OCP, PMID to VOUT OV/UV, CFLY SCP (short-circuit protection), VIN SCP, VOUT SCP, and a watchdog timer. In addition to all the aforementioned protection measures, HL7138 also features a 12-bit ADC that provides the system with VIN, IIN, VOUT, VBAT, IBAT, VTS, and TDIE information to optimize charging control.

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- 商品名: HL7138
- 产品名称: Dual-Phase 35W Charge Pump Charger
- 产品简介: The HL7138 is the low voltage fast direct charger for 1 cell Li-ion and Li-polymer batteries. The device integrates a dual phase switched capacitor converter and reverse blocking MOSFET (QRB FET). The HL7138 has 97.4% efficiency at 4.5V output and 5A current with 2x22uF per phase. The switched capacitor converter architecture and the integrated FETs in device are optimized to enable 50% duty cycle operation under charge pump (CP) mode. The CP mode allows output voltage (VOUT) to be around half of the input voltage (VIN) and output current to double the input current, reducing input power cable loss and limiting temperature rise in application. The dual-phase architecture reduces input capacitance requirements and input voltage ripple. Besides the CP mode, the device also has bypass (BP) mode. The BP mode allows VIN forwardly passing through internal power FETs to VOUT without any conversion. The HL7138 provides CC (Constant Current) and CV (Constant Voltage) regulations through controlling the QRB FET for safe charging operation. The CC regulation is controlled through a closed loop of input current sensing or battery current sensing. The CV regulation is controlled through a closed loop of battery voltage sensing. In addition, the HL7138 also supports thermal regulation loop in case the CV/CC regulation causes overheating device.
HL7138 is a low-voltage fast direct charger for single-cell lithium-ion and lithium polymer batteries. This device integrates a dual-phase switched capacitor converter and a reverse-blocking MOSFET (QRB FET). The efficiency of HL7138 at 4.5V output and 5A current is 97.4%, with each phase using 2x22uF. The switched capacitor converter architecture and the integrated FET in the device are optimized to achieve 50% duty cycle operation in charge pump (CP) mode. The CP mode allows the output voltage (VOUT) to be approximately half of the input voltage (VIN), with the output current being twice the input current, reducing losses in the input power line and limiting temperature rise in applications. The dual-phase structure reduces input capacitance requirements and input voltage ripple. In addition to CP mode, the device also features bypass (BP) mode. BP mode allows VIN to be forwarded through the internal power FET to VOUT without any conversion. HL7138 provides CC (constant current) and CV (constant voltage) regulation by controlling the QRB FET for safe charging operation. CC regulation is achieved through closed-loop control of input current sensing or battery current sensing. CV regulation is controlled through closed-loop battery voltage sensing. Additionally, HL7138 supports a thermal regulation loop to prevent overheating of the device due to CV/CC regulation. HL7138 has all the necessary protection measures to ensure safe operation. The device includes OTP (over-temperature protection), VIN UVP/OVP, AIN OCP/UCP, VOUT OVP/UVP, VBAT OVP, IBAT OCP, PMID to VOUT OV/UV, CFLY SCP (short-circuit protection), VIN SCP, VOUT SCP, and a watchdog timer. In addition to all the aforementioned protection measures, HL7138 also features a 12-bit ADC that provides the system with VIN, IIN, VOUT, VBAT, IBAT, VTS, and TDIE information to optimize charging control.
- High reliable AMR input/output pins
  - 37V AMR on VBUS
  - 20V AMR on VIN pin
  - 7V AMR on VOUT, BATP
- Built-in external input NFET control
- Wide range operating voltage
  - 3V to 11.7V operational VIN voltage
  - 5.5V Max operational output voltage
- Dual conversion modes
  - 2:1 Charge pump mode (CP mode)
    - Optimized for 50% duty
  - 1:1 Bypass mode (BP mode)
- High efficiency charge pump
  - 97.4% Efficiency for VOUT = 4.5V_5A with 2x22uF
  - 97.6% Efficiency for VOUT = 4.5V_5A with 3x22uF
- Regulation loop for charging operation through QRB FET control.
  - Input current regulation
  - Battery voltage regulation
  - Battery current regulation
  - Thermal regulation
- Selectable switching frequency from 500kHz to 1.6MHz
- Subtitle
  - Subtitle HL7138 is a low-voltage fast direct charger for single-cell lithium-ion and lithium polymer batteries.
- Smartphones
- Tablet PC
- Mobile IoT Devices
For the full datasheet, please contact sales.cn@halomicro.com to submit your request.

For more sample information, please contact Get samples to submit your request,

or contact marketing@halomicro.cn by email to state your requirements.

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