SP7121
2-Channel Adjustable Low Dropout High Side Linear
LED Driver
PIN DESCRIPTION
Name
Vcc
GND
EN
ISET
LED2
LED1
Pin Number
1
2
3
4
5
6
Description
Power Input Pin.
Bypass VCC to GND with 1nF capacitor as close to VIN as possible
Ground Pin
Enable Pin.
Device is active if EN is logic HIGH
Connect external resistor to set LED current
Connect anode of LED 2
Connect anode of LED 1
ORDERING INFORMATION
Part Number
Temperature
Range
Marking
SP7121EK-L
-40°C≤TA≤+85°C
NAWW
SP7121EK-L/TR
-40°C≤TA≤+85°C
NAWW
SP7121EK-F
-40°C≤TA≤+85°C
BCWW
SP7121EK-F/TR
SP7121EB
-40°C≤TA≤+85°C
BCWW
SP7121 Evaluation Board
“WW” = Work Week
Package
Packing
Quantity
Note 1
6-pin SOT23
Bulk
RoHS compliant
Lead Free
6-pin SOT23 2.5K/Tape & Reel RoHS compliant
Lead Free
6-pin SOT23
Bulk
RoHS compliant
Halogen Free
6-pin SOT23 2.5K/Tape & Reel RoHS compliant
Halogen Free
Note 2
© 2010 Exar Corporation
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Rev. 2.0.0