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4.5V to 32V Input High Current LED Driver IC For Buck, Buck-Boost Topology
Product Profile
    Application Note
General Description:
The CN5816 is a current mode fixed-frequency PWM controller for high current LED applications.
The device operates from an input supply between 4.5V and 32V and provides to drive an external N-channel
MOSFET. With the maximum operating input voltage of 32V, the CN5816 is ideal for buck,buck-boost
LED driver operation.
The CN5816 contains all the necessary building blocks including a bandgap reference, a 330KHz oscillator,
current-mode control circuitry, chip shutdown block, softstart block and gate driver, etc.
Current mode control provides improved transient response and simplified loop compensation. On-chip soft
start reduces the inrush current on power up. The other features include chip shutdown, over voltage
protection, built-in 5V regulator and slope compensation, etc.
The CN5816 is available in 10-pin SSOP package.
High Power LED Lighting Desk Lights and Room Lighting
Building and Street Lighting Industrial Display Backlighting
Peak Current Mode Controller
4.5V to 32V Input Range
Buck, and Buck-Boost Operation
330kHz Switching Frequency
High Side Current Sense
120mV Current Sense Threshold
Cycle-by-Cycle Peak Inductor Current Limit
On-Chip Slope Compensation
Programmable Over Voltage Protection
Internal Soft-start to Avoid Inrush Current
Built-in 5V Regulator
Low Shutdown Current
Operating Temperature Range:-40℃ to 85℃
Available in 10-pin SSOP package.
Lead-free, Rohs-compliant and Halogen free
Application Note
Circuit Design Procedures for CN5816
Quick Start of CN5816 Demo Board
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