What are the mature high current vehicle charging solutions? What chip is good for 4.8a car charging solution? Introduction to High Current Car Charging Chip Scheme, Development of 4.8A Car Charging Scheme Whatsapp:+8619147929113

Recommendation for the development of 4.8a car charging chip solution:

The board space is large, and CX8571 (external dual N MOS) can be used for dual circuits. The board space is small, and CX8576 (internal MOS) can be used for simple external applications.

CX8571 Overview:

CX8571 is a step-down PWM controller that can drive dual output 8A (2.4A+2.44A) load current. The design allows the CX8571 to operate within a wide input voltage range of 9V to 40V. The external shutdown function is achieved by lowering the logic level of the COMP/EN pin and entering standby mode. External compensation enables the feedback control loop to have good line voltage adjustment and load adjustment rates, and the peripheral design is flexible.

CX8571 can operate in CC (constant current output) or CV (constant voltage output) modes, and the overcurrent protection (OCP) current value can be set through external current detection resistance.

CX8571 is suitable for DC/DC switching power supplies with limited current requirements. The chip is packaged in MSOP10 and requires fewer external devices.

CX8571 Features:

• Voltage input range: 9-40V

• Output voltage accuracy (Vref=1.0V): ± 2.0%

• Dual channel CC/CV mode

• Dual channel external current limiting

• Over temperature protection (OTP)

• Built-in soft start time 3ms

• Fixed frequency 120KHz

• Input undervoltage protection (minimum 7 V, typical 7.5 V, maximum 8 V)

• Duty cycle range: 0-95%

• One pin can achieve external compensation and shutdown control

• Ceramic capacitors can be used for output

• Built-in adjustable line voltage compensation

• MSOP10 Packaging

CX8571 applied to

• car charger 

• High brightness lighting

• Portable device power supply

• Universal DC/DC controller with current limiting function

CX8576 Overview

CX8576 is a synchronous buck converter that can drive and output a 4.8A load current. Design allows CX8576 to operate from 9V to 40V

Works within a wide input voltage range. By lowering the logic level of the COMP/EN pin, the external shutdown function is achieved and the standby mode is entered. External

Partial compensation enables the feedback control loop to have good line voltage adjustment rate and load adjustment rate, and the peripheral design is flexible.

The CX8576 can operate in either CC (constant current output) or CV (constant voltage output) modes, and the overcurrent protection (OCP) current value can be accurately set through external current detection resistance.

CX8576 is suitable for DC/DC switching power supply with limited current requirements, and the chip adopts QFN20L-5 × 5 packages, requiring fewer external components.

CX8576 Features:

• Voltage input range: 9-40V

• Output voltage accuracy (Vref=1.0V): ± 2.0%

• CC/CV mode

• Accurate setting of current limiting points through external resistors; Current limiting accuracy: ± 5%

• Over temperature protection (OTP)

• Built-in soft start time: 3ms

• Fixed frequency: 120KHz

• Input undervoltage protection (typical 7.5V)

• Duty cycle range: 0-95%

• COMP pin achieves both external compensation and shutdown control

• Ceramic capacitors can be used for output

• Adjustable output cable voltage drop compensation

• QFN20L-5 × 5 Packaging

Mature high current car charging solution: Develop domestic 4.8a car charging chip solution and provide technical support

CX8576 Applied to:

• car charger 

• Portable charging equipment

• Universal DC/DC converter with current limiting function