900mA, single input single cell lithium-ion and lithium polymer battery charging chip with autonomous function
HL7040
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Product Brief Datasheet
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- 商品名: HL7040
- 产品名称: 900mA, single input single cell lithium-ion and lithium polymer battery charging chip with autonomous function
- 产品特性: The current version is not recommended, please use the latest design HL7040C.
- 产品简介: HL7040 is a highly integrated lithium-ion and lithium polymer battery charging chip designed for compact portable applications. The product is powered by a USB port or AC adapter, featuring input over-voltage protection and a high input voltage range that supports low-cost unregulated adapters. HL7040 is a single-output charging chip, and if the average system load can fully charge the battery within a 10-hour safety timer, the system load can be connected in parallel with the battery. The battery charging process is divided into three stages: pre-charge, constant current, and constant voltage. During all charging stages, the internal control loop monitors the chip's junction temperature, and when it exceeds the internal temperature threshold, it actively reduces the charging current. The charger power stage and charging current monitoring function are fully integrated, providing high-precision current and voltage regulation, charging status indication, and charging cutoff functionality. The pre-charge current and cutoff current thresholds can be programmed via external resistors on the HL7040, and the fast charge current value can also be programmed using an external resistor.
The HL7040 series devices are highly integrated lithium-ion and lithium polymer battery charger devices designed for compact portable applications. The HL7040 is powered by either a USB port or an AC adapter for system load. It includes input over-voltage protection with a high input voltage range that supports low-cost unregulated adapters. The fast charging current value can also be programmed via an external resistor. The HL7040 uses a DFN-10 package. The HL7040 series devices are highly integrated lithium-ion and lithium polymer battery charger devices designed for compact portable applications. The HL7040 is powered by either a USB port or an AC adapter for system load. It includes input over-voltage protection with a high input voltage range that supports low-cost unregulated adapters. The HL7040 contains a single power output for battery charging, and if the average system load cannot fully charge the battery within a 10-hour safety timer period, the system load can be paralleled with the battery. Battery charging is divided into three stages: trickle, constant current, and constant voltage. During all charging stages, the internal control loop monitors the chip's junction temperature, and when it exceeds the internal temperature threshold, it reduces the charging current. The charger power stage and charging current sensing function are fully integrated. This charger features high-precision current and voltage regulation loop functions, charging status indication, and charging termination functions. The pre-charge current and termination current thresholds can be programmed via external resistors of the HL7040. The fast charging current value can also be programmed via an external resistor. The HL7040 uses a DFN-10 package.
- Charging
- The charging voltage accuracy is 1%.
- The charging current accuracy is 10%.
- Pins can choose USB 100mA and 500mA (maximum input current limit).
- Programmable cutoff and pre-charge thresholds.
- Protection functions.
- 30V input rated voltage, with input over-voltage protection of 6.6V or 7.1V.
- Input voltage dynamic power management.
- 125°C thermal regulation threshold.
- 150°C thermal shutdown protection.
- OUT short-circuit protection and ISET short-circuit detection.
- Can operate within the JEITA range, using 1/2 fast charging current at low temperatures and 4.06V voltage regulation at high temperatures.
- Fixed 10-hour safety timer.
- System.
- Automatic cutoff and timer disable mode (TTDM) for battery packs with thermistors.
- Status indication - Charging/Complete.
- Using DFN-10 package, size 2mm x 2mm.
- Integrated self-start function for production line testing.
キーワード:- HL7040
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Subtitle
- Subtitle 900mA, single input single cell lithium-ion and lithium polymer battery charging IC with autonomous functionality
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- Smartphone
- Handheld computer
- MP3 player
- Low-power handheld device
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