CX8853 Car Charging Chip Solution:

CX8853 is a step-down DC-DC converter with an input withstand voltage of 40V and the ability to achieve precise constant voltage and current

CX8853 has a built-in 20m Ω High side N MOS and 20m Ω Low side NMOS, which can support 4A continuous output current and adjustable output voltage, with a maximum support of 95% duty cycle

CX8853 has high-performance load response and input voltage response capabilities, while precise constant voltage and constant current control loops achieve minimal load and linear adjustment rates

CX8853 does not require external compensation and can rely on its built-in stable loop to achieve constant current and voltage control, while also having cable voltage drop compensation function

CX8853 is a constant voltage, constant current, and step-down DC-DC converter with minimal application, excellent performance, and stable reliability

Features:

• Input voltage can reach 4.75V-40V

• Built in 20m Ω High side NMOS

• Built in 20m Ω Low side NMOS

• support 4A continuous output current

• support 95% duty cycle

• Output voltage and current can be set (3.2V-20V)

• Constant current accuracy ± 6%

• Constant voltage accuracy ± 2% (VFB=1.0V)

• No external compensation required

• Adjustable switching frequency

• Cable compensation voltage drop

• Short circuit protection (SCP), overheat protection (OTP), overvoltage protection (OVP).

• Built in SW cycle by cycle detection mode, it can avoid short circuit damage of R SENT current limiting resistor to the product.

• SOP-8L packaging form

• The chip output can be turned off through external control COMP/EN

Applied to:

• Car charger

• Lighting lights

• Portable device power supply