TP5400-Shenzhen Yifangda Electronics Co., Ltd

Yifangda Electronics Co., Ltd., Shenzhen

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TP5400

The TP5400 is a single-cell lithium-ion battery charger and a constant 5V boost controller specifically designed for mobile power banks. The charging section integrates high-precision voltage and current regulation, pre-charge, charging status indication, and charging termination functions, capable of outputting a maximum charging current of 1A. The boost circuit utilizes a VFM switching DC/DC boost converter manufactured using CMOS technology, featuring extremely low no-load current. It boasts ultra-low no-load power consumption (less than 10uA) and a boost output drive current capability of up to 1A. It's plug-and-play, requiring no external buttons. The charging section employs a linear step-down approach, incorporating a PMOSFET and an anti-reverse current circuit, eliminating the need for external detection resistors and isolation diodes. Thermal feedback automatically adjusts the charging current to limit chip temperature during high-power operation or high ambient temperatures. The full charge voltage is fixed at 4.2V. The charging current can be externally set via a resistor. Once the battery reaches 4.2V, the charging current gradually decreases to 1/5 of the set current value, and the TP5400 automatically terminates charging. The boost section also integrates a power NMOSFET; its low internal resistance provides a drive capability of up to 5V/1A. The high level of integration allows the TP5400 to operate with minimal external components. The TP5400 also integrates charging temperature protection and a boost input power current limiting loop, dynamically adjusting the current based on the load and featuring fast response and overcurrent shutdown functionality. The boost converter employs a frequency modulation method, resulting in significantly lower no-load power consumption and ripple, stronger drive capability, and higher efficiency compared to similar domestic and international products.

Category：

Topin Microelectronics

Product Description

- Commodity name: TP5400
- 封装: ESOP
- 品牌: Topin Microelectronics
The TP5400 is a single-cell lithium-ion battery charger and a constant 5V boost controller specifically designed for mobile power banks. The charging section integrates high-precision voltage and current regulation, pre-charge, charging status indication, and charging termination functions, capable of outputting a maximum charging current of 1A. The boost circuit utilizes a VFM switching DC/DC boost converter manufactured using CMOS technology, featuring extremely low no-load current. It boasts ultra-low no-load power consumption (less than 10uA) and a boost output drive current capability of up to 1A. It's plug-and-play, requiring no external buttons. The charging section employs a linear step-down approach, incorporating a PMOSFET and an anti-reverse current circuit, eliminating the need for external detection resistors and isolation diodes. Thermal feedback automatically adjusts the charging current to limit chip temperature during high-power operation or high ambient temperatures. The full charge voltage is fixed at 4.2V. The charging current can be externally set via a resistor. Once the battery reaches 4.2V, the charging current gradually decreases to 1/5 of the set current value, and the TP5400 automatically terminates charging. The boost section also integrates a power NMOSFET; its low internal resistance provides a drive capability of up to 5V/1A. The high level of integration allows the TP5400 to operate with minimal external components. The TP5400 also integrates charging temperature protection and a boost input power current limiting loop, dynamically adjusting the current based on the load and featuring fast response and overcurrent shutdown functionality. The boost converter employs a frequency modulation method, resulting in significantly lower no-load power consumption and ripple, stronger drive capability, and higher efficiency compared to similar domestic and international products.

Maximum input voltage is 9V.

Programmable charging current up to 1000mA (typical), maximum

up to 1.2A.

Boost output current up to 1A (Vbat=3.3V), maximum

output 1.5A (Vbat=3.8V).

Automatic frequency adjustment (VFM), adapts to different boost loads (5V

No-load standby current less than 10uA), no button required to start low battery

voltage (less than 3V) automatically stops boost.

For single-cell lithium-ion battery mobile power supply dedicated circuit;

Boost high efficiency: 88% (Typ), maximum 90%;

Constant current/constant voltage operation, and has a thermal regulation function that can maximize the charging rate without the risk of overheating.

Thermal regulation function that maximizes charging speed without overheating risk.

Preset charging voltage of 4.2V with accuracy of ±1%.

Preset boost accuracy of 5V with accuracy of ±2.5%.
2 charging status indicators: open-drain output driving LED.

C/5 charging termination current.

Trickle charging C/5 below 2.9V.

Soft start charging reduces inrush current.

No MOSFET, sense resistor, or isolation diode required.

8-pin ESOP enhanced heat dissipation package

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