Número de pieza
HM4053B
componentes Descripción
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PDF
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11 Pages
File Size
440.9 kB
Fabricante
Shenzhen Huazhimei Semiconductor Co., Ltd
HM4053B Hoja de datos - Shenzhen Huazhimei Semiconductor Co., Ltd
Shenzhen Huazhimei Semiconductor Co., Ltd
Overview:
HM4053B is a PWM step-down mode single-cell lithium battery charge management integrated circuit that independently manages the charge of a single-cell lithium battery. It has the advantages of small package size, few peripheral components and simple use. HM4053B has trickle current, constant current and constant voltage charging modes, which is very suitable for lithium battery charge management. In constant voltage charging mode, HM4053B modulates the battery voltage at 4.2V, which can also be adjusted upward through an external resistor; in constant current charging mode, the charging current is set through an external resistor.
Features:
●The internal adaptive circuit can adjust the power according to the input power
The current output capability automatically adjusts the charging current
● The current output capability that can be used such as USB interface is limited.
Power supply to charge lithium battery
● Wide input voltage range: 4.83V to 28V
● Complete charging management of single-cell lithium battery
● Charging current up to 4A
● PWM switching frequency: 300KHz
● The constant voltage charging voltage can be adjusted upward with a resistor
● Constant voltage charging voltage accuracy: ± 1%
● Constant charging current is set by external resistor
● Trickle charge a deeply discharged battery
● Auto recharge function
● Charging status and charging end status indication
● Soft start function
● Battery terminal overvoltage protection
● Working environment temperature: - 40℃ to + 85℃
● Available in 10-pin SSOP package
● The product is lead-free, meets Rohs, and does not contain halogen
application:
● Mobile power supply
● Handheld devices
● Backup battery application
● Portable industrial and medical instruments
● Power tools
● Independent battery charger
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