TP4351B Datasheet – 1A Mobile Power Solution IC – TPOWER

Part Number: TP4351B

Function: Synchronous Single-chip Solution Designed for Mobile Power Supply

Package: SOP 16 Pin

Manufacturer: Shenzhen TPOWER Semiconductor




The TP4351B is a synchronous single-chip solution designed for mobile power supply. It integrates a linear charge management module, a synchronous discharge management module, a power detection and LED indication module and a protection module.

TP4351B built-in charge and discharge power MOS, charge current can be set, the maximum charge current of 1A, synchronous boost 1A output current. TP4351B internal integrated temperature compensation, over-temperature protection, overcharge and over-discharge protection, output over-voltage protection, output overload protection, output short-circuit protection and other security features to ensure that the chip and lithium-ion battery security, application circuit is simple, The charge management and discharge management can be achieved with only a few components.




1. Discharge output: 5V / 1A
2. Charging current: maximum 1A
3. Efficiency: 91% (input 3.7V, output 5V / 1A)
4. BAT Discharge termination voltage: 2.9V
5. Optional 4.2V / 4.35V charging voltage
6. Maximum 25uA standby current
7. Intelligent temperature control and over-temperature protection
8. Integrated output over-voltage protection, short circuit protection, overload protection
9. Integrated over-charge and over-discharge protection
10. Support trickle mode and zero voltage charging
11. Support flashlight function, the maximum output of 100mA


TP4351B Datasheet


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57F68 Datasheet – BlueTunes ROM Stereo Headset Solution – CSR

Part Number: 57F68, CSR57F68

Function: BlueTunes ROM Stereo Headset Solution ( Single-Chip Bluetooth V2.1 + EDR System )

Package: 68-lead 8 x 8 x 0.9mm, 0.4mm pitch QFN package

Manufacturer: CSR ( Cambridge Silicon Radio Limited )






57F68 Bluetooth module for the company’s independent development of intelligent wireless audio data transmission products, low-cost high-efficiency three-dimensional Sound wireless transmission scheme, the module uses the CSR BLUECORE5 chip for the module provides high-quality sound quality and compatibility, the whole Body performance is optimized. 57F68 Bluetooth module using the drive-free way, customers only need to access the application module, power, even Then press the button, you can quickly achieve the wireless transmission of music and enjoy the fun of wireless music.


1. Bluetooth specification Bluetooth V2.1 + EDR
2. Modulation GFSK, 1Mbps, 0.5BT Gaussian
3. Supply voltage: Battery voltage VDD: 3.3 supply
4. Support for Bluetooth protocol OPP, OBEX, SPP, A2DP, AVRCP, FTP, HS / HF, DUN Profiles
5. Operating current ≤ 30mA
6. Standby current <0.4mA
7. Temperature range -40ºC to + 80ºC
8. Wireless transmission range: 10 meters
9. Transmission power: CLASS2 4dBm
10. Sensitivity: [email protected]%BER
11. Frequency range: 2.4GHz-2.480GHz
12. External interface: PIO, SPI, Speake, Microphone
13. Audio performance
14. Audio signal to noise ratio: ≥ 75dB
15. Distortion ≤ 0.01%
16. Module size 25.01X21.02X1.8MM

57F68 Datasheet


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