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CN5815 Datasheet(PDF) 1 Page - Shanghai Consonance Electronics Incorporated

Part No. CN5815
Description  4.5V to 32V Input, Constant Current Boost HB LED Driver
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Maker  CONSONANCE [Shanghai Consonance Electronics Incorporated]
Homepage  http://www.consonance-elec.com/
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CN5815 Datasheet(HTML) 1 Page - Shanghai Consonance Electronics Incorporated

 
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CONSONANCE
www.consonance-elec.com
1
REV 1.0
4.5V to 32V Input, Constant Current Boost HB LED Driver
CN5815
General Description:
The CN5815 is a current mode fixed-frequency
PWM controller for high brightness(HB) LED
driving applications. The device operates from an
input supply between 4.5V and 32V and provides to
drive an external N-channel MOSFET.
The CN5815 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.
LED current is set by an external resistor.
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, LED dimming, built-in 5V regulator and
slope compensation, etc.
The CN5815 is available in 10-pin SSOP package.
Applications:
High Brightness LED Lighting
Flashlight
Building and Street Lighting
Constant Current Power Supply
Portable Devices
Features:
Constant Current HB LED Driver
LED Current Set by an External Resistor
±
10% LED Current Accuracy
Peak Current Mode PWM Controller
4.5V to 32V Input Range
330kHz Switching Frequency
PWM Dimming
Cycle-by-Cycle Peak Inductor Current Limit
On-Chip Slope Compensation
Internal Soft-start
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
Pin Assignment
FB
OVP
DRV
GND
CN5815
1
2
3
4
ISW
5
COMP
6
7
8
9
10
VIN
VCC
DIM
SHDN


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