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CN5816
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.
 
 
Applications:
High Power LED Lighting Desk Lights and Room Lighting
Building and Street Lighting Industrial Display Backlighting
 
Features:
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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