SP1820
Four Channels Constant Current LED Driver
DESCRIPTION
The SP1820 is a four channels constant current driver
white LED. The device can drive up to 20mA load
current per channel from single cell Lithium Ion battery.
SP1820 can provide lowest cost LED driver for various
applications. It does not require any external
components. Internal thermal protection automatically
adjusts LED current to prevent overheating.
The dimming control can be achieved by feeding a
PWM or analog signal into the Iset pin. The device can
be shut down by Enable low.
APPLICATIONS
Battery Powered Devices
Digital Camera
PDA, MP3/4
GPS
Mobile Phone
Keyboard/Display Backlight
FEATURES
Low Cost LED Driver
Constant Current Output
Four Channels LED Driver Provides Matching
LED Current
Low Quiescent Current
Disconnects LEDs in Shutdown Mode
Thermal Shut Down Protection
Current Adjustable via external resistor
Dimming Control thru either Enable or Iset
PIN CONFIGURATION(SOP – 8P)
PART MARKING
2009/04/20
Ver.2
Page 1
SYNC-POWER [ SYNC POWER CROP. ]
