Model No. :
CX8871Withstand voltage :
40VOutput voltage :
ADJOutput current :
8AWorking mode :
synchronousPackaging :
MSOP10Summary:
CX8871 is a step-down PWM controller that can drive a constant voltage accuracy of ± 2% (VFB=1.0V) dual output of 8A (4A+4A) load current.
CX8871 operates within a wide input voltage range of 4.75V-40V, and achieves external shutdown function by lowering the RT/EN pin logic level and entering standby mode. External compensation enables the feedback control loop to have good line voltage adjustment rate and load adjustment rate, and the peripheral design is flexible.
CX8871 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.
CX8871 is a stable and reliable constant voltage and constant current buck DC-DC converter with minimal application, excellent performance, and MSOP10 packaging.
Characteristic:
Input voltage can reach 4.75V-40V
Constant voltage accuracy ± 2% (VFB=1.0V)
Dual channel CC/CV mode
Dual channel external current limiting
Constant current accuracy ± 6%
Duty cycle range 0-95%
Built in adjustable line voltage compensation
Built in soft start time of 3ms
Adjustable switching frequency (110KHz-220KHz)
One pin for external frequency regulation and shutdown control
Short circuit protection (SCP), overheat protection (OTP), overvoltage protection (OVP)
Built in SW cycle by cycle detection mode to prevent RSENT current limiting resistor short circuit damage to the product
MSOP10 packaging form
Application:
Car charger
Lighting
Portable device power supply