TP5602/TP5602B-Shenzhen Yifangda Electronics Co., Ltd

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TP5602/TP5602B

The TP5602 is a highly integrated circuit designed for high-power mobile power supplies. It integrates automatic charging management, battery isolation, boost management, battery level display, and battery protection into a single chip. With the addition of an input isolation PMOS, a power NMOS, an inductor, and a few resistors and capacitors, the application circuit is simple, stable, reliable, and requires no debugging during production, resulting in a high yield. The TP5602 uses a unique single-inductor multiplexing technology, incorporating a highly efficient synchronous buck 4.2V 3A lithium battery charging circuit and a synchronous boost 5V 3A output circuit. Four LEDs display the charge and discharge levels, and also indicate abnormal status. It does not require an external battery protection circuit, integrating multiple input and output protections (overvoltage, overcharge, undervoltage, short circuit, etc.). The TP5602 offers features such as automatic charging upon connection, button-activated boost, and automatic shutdown under light load (during boost). The buck charging constant current is adjustable, and the 5V boost output constant current is externally adjustable. Its small QFN24 package and simple external circuitry make the TP5602 suitable for high-power independent charging or independent boost management applications in other portable devices. The TP5602 and TP5602B only differ in the LED display mode during boost mode. In the TP5602, the LED lights for 3 seconds during button-activated or automatic boost operation, then turns off; in the TP5602B, the LED remains on during boost operation until the boost stops and the LED turns off. All other functions are the same.

Category：

Topin Microelectronics

Product Description

- Commodity name: TP5602/TP5602B
- 封装: QFN24
- 品牌: Topin Microelectronics
The TP5602 is a highly integrated circuit designed for high-power mobile power supplies. It integrates automatic charging management, battery isolation, boost management, battery level display, and battery protection into a single chip. With the addition of an input isolation PMOS, a power NMOS, an inductor, and a few resistors and capacitors, the application circuit is simple, stable, reliable, and requires no debugging during production, resulting in a high yield. The TP5602 uses a unique single-inductor multiplexing technology, incorporating a highly efficient synchronous buck 4.2V 3A lithium battery charging circuit and a synchronous boost 5V 3A output circuit. Four LEDs display the charge and discharge levels, and also indicate abnormal status. It does not require an external battery protection circuit, integrating multiple input and output protections (overvoltage, overcharge, undervoltage, short circuit, etc.). The TP5602 offers features such as automatic charging upon connection, button-activated boost, and automatic shutdown under light load (during boost). The buck charging constant current is adjustable, and the 5V boost output constant current is externally adjustable. Its small QFN24 package and simple external circuitry make the TP5602 suitable for high-power independent charging or independent boost management applications in other portable devices. The TP5602 and TP5602B only differ in the LED display mode during boost mode. In the TP5602, the LED lights for 3 seconds during button-activated or automatic boost operation, then turns off; in the TP5602B, the LED remains on during boost operation until the boost stops and the LED turns off. All other functions are the same.

Charging Mode:

Single-cell 4.2V lithium battery charging, typical 3A.

Wide operating voltage, up to 4.2~7V.

Bypass output, power adaptive.

Reverse polarity protection, battery overvoltage protection (4.3V), safer.

Built-in power management PMOS2, fully synchronous switching mode.

Three-stage charging: trickle, constant current, and constant voltage, protecting the battery.

Programmable charging current ISET, 0.1A--3A.

Trickle charging current: 20%ISET.

Constant voltage shutdown current: 20%ISET.

4-LED charging status indicator, highest bit flashing.

Chip over-temperature automatic power reduction protection, undervoltage protection.

Battery short-circuit protection.

Built-in multiple battery protections, eliminating the need for external protection chips.

Switching frequency 700KHz, typical inductance 2.2uH.

Charging voltage control accuracy of 4.2V±1%.

Uses QFN24 4*4mm ultra-small package.

Boost Mode:

Button start VIO, fixed 5V output.

Press and hold the button for 2.5S to turn off the boost and enter standby mode.

Adjustable maximum output constant current, typical output 5V3A.

4-LED battery level indicator, automatically turns off after 3 seconds (TP5602B light is always on), battery less than 3V alarm 6 times protection, less than 2.4V complete shutdown, no operation

亮），电池小于 3V 报警 6 次保护，小于 2.4V 全停机，不动

作。

Chip over-temperature protection, automatically reduces output current, undervoltage, overcurrent, and short-circuit automatic standby protection.

动待机保护。

Switching frequency 300KHz.

Light load (output <30mA) automatic standby after 10 seconds.

Standby battery current as low as 6uA.

Typical output 5V 3A, 4V Vbat typical output efficiency 93.5%. Maximum output

5V 3.5A.

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