900mA, a headphone-specific charging SOC chip with dual-channel input and integrated Boost functionality.
HL7090
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Product Brief Datasheet
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- 商品名: HL7090
- 产品名称: 900mA, a headphone-specific charging SOC chip with dual-channel input and integrated Boost functionality.
- 产品特性: The current version is not recommended, please use the latest design HL7095.
- 产品简介: HL7090 is a compact, flexible, efficient, USB-compliant switch-mode charging management chip, suitable for charging single-cell lithium-ion and lithium polymer batteries, used in scenarios such as headphones and e-cigarettes. Its charging parameters can be programmed via the I²C interface (HL7090FN03). This product integrates synchronous PWM controller, power MOSFET, input current detection, high-precision current and voltage regulation, and charging cutoff functions into a micro TSLP package. HL7090 provides fully automatic three-stage battery charging control, including trickle charging, constant current (CC) charging, and constant voltage (CV) charging, until the battery reaches the charging cutoff voltage. The input current is automatically limited to the value set by the host. Charging is terminated based on the battery voltage and the user-selected minimum current. A safety timer with reset control provides a safety backup for the I²C interface. During normal operation, if the battery voltage falls below the internal threshold, HL7090 will automatically restart the charging cycle and enter sleep mode or high-impedance mode if the input power is not properly connected. The system charging status can be reported to the host via the I²C interface. During the charging process, the chip monitors its junction temperature (TJ) and reduces the charging current when the junction temperature (TJ) rises to around 120°C. To power the system load, HL7090 can boost the battery voltage to the programmed voltage of PMID.
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Integrated 5V/3A efficient boost charger
- Supports 2-3 lithium-ion batteries
- Fully automatic efficient charging management for lithium batteries
- Automatic adjustment, CC/CV charging control, cutoff and recharge
- 68mΩ sensing resistor, charging current can be programmed via external resistor
- 1.5MHz synchronous PWM, 4.7µH small inductor
- Charging current adjustment accuracy: ±5%
- Charging voltage adjustment accuracy:
- ±0.3% (T J =25°C),
- ±1% (T J = 0°C to 85°C)
- ±2% (T J =0°C to 125°C)
- 10V input voltage AMR, 6V maximum operating voltage
- Dynamic power management based on input voltage (VIN DPM)
- Power on without battery
- Automatic adapter fault detection
- Low power high impedance mode (low power mode)
- Integrated power MOSFET, maximum charging current of 900mA
- Automatic charging, USB standard startup sequence compliance
- Comprehensive protection
- Battery reverse leakage protection
- Thermal regulation and shutdown
- Input and output overvoltage protection
- PMID short circuit protection
- Integrated boost function
- Input voltage range for battery 2.5-4.5V
- 5.0V/ 300mA (V ICSN ≥ 3.4V) suitable for HL7090FN01
- 4.7-5.4V/300mA suitable for HL7090FN03
- 2A output current limit
- OTP optional VOUT levels, suitable for HL7090FN01
- With two load switches, maximum current limit of 250mA, with automatic load detection
- Temperature detection of the battery during charging and boosting
- Programmable charging parameters I 2 C compatible interface (HL7090FN03)
- Fully automatic charging regardless of host management
- Battery charging enable/disable
- Battery charging preconditioning
- Charging cutoff and recharge
- Packaged in TSLP-20, dimensions 3mm x 3mm
キーワード:- HL7090
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- In-ear headphones
- Electronic cigarette
- Wireless stereo headphones
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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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