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Endicott Research Group

ERG SFDMD LED backlight drivers

SFDMD adds onboard dimming to ERG’s Mini driver format. It suits compact LCD designs that use an analog brightness command to control the backlight.

28 Part numbers
5 V, 12 V DC Input voltage options
1, 2, 3, 4, 6 LED string options
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At a glance

SFDMD configuration options

Family
Mini with dimming
Dimming control
Onboard PWM with analog control
Input voltage options
5 V, 12 V DC
LED string options
1, 2, 3, 4, 6
String voltage (typical, varies by part)
16.5–32 V
Current per string (typical, varies by part)
10–160 mA

Compare SFDMD with SFDM based on the brightness signal available from your controller. Check the control voltage, polarity, and enable behavior for the exact part.

SFDMD part numbers.

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Input voltage
LED strings
String voltage (typ.)
Current per string (typ.)
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28 products
SFDMDA3649FEndicott Research Group SFDMDLED backlight driver, 5 V DC input, 3 LED strings. Typical per-string output: 23 V, 24 mA. 5 V323 V24 mA
SFDMDA3981FEndicott Research Group SFDMDLED backlight driver, 5 V DC input, 1 LED string. Typical per-string output: 16.5 V, 160 mA. 5 V116.5 V160 mA
SFDMDA3983FEndicott Research Group SFDMDLED backlight driver, 5 V DC input, 4 LED strings. Typical per-string output: 30 V, 25 mA. 5 V430 V25 mA
SFDMDA4013FEndicott Research Group SFDMDLED backlight driver, 5 V DC input, 1 LED string. Typical per-string output: 18 V, 120 mA. 5 V118 V120 mA
SFDMDA4108FEndicott Research Group SFDMDLED backlight driver, 5 V DC input, 3 LED strings. Typical per-string output: 16.5 V, 50 mA. 5 V316.5 V50 mA
SFDMDA4109FEndicott Research Group SFDMDLED backlight driver, 5 V DC input, 3 LED strings. Typical per-string output: 21.7 V, 50 mA. 5 V321.7 V50 mA
SFDMDA4175FEndicott Research Group SFDMDLED backlight driver, 5 V DC input, 2 LED strings. Typical per-string output: 16.5 V, 80 mA. 5 V216.5 V80 mA
SFDMDB3638FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 6 LED strings. Typical per-string output: 32 V, 16 mA. 12 V632 V16 mA
SFDMDB3649FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 28.2 V, 25 mA. 12 V328.2 V25 mA
SFDMDB3792FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 32 V, 25 mA. 12 V332 V25 mA
SFDMDB3807FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 32 V, 15 mA. 12 V332 V15 mA
SFDMDB3885FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 32 V, 25 mA. 12 V432 V25 mA
SFDMDB3907FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 2 LED strings. Typical per-string output: 32 V, 80 mA. 12 V232 V80 mA
SFDMDB3945FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 2 LED strings. Typical per-string output: 32 V, 60 mA. 12 V232 V60 mA
SFDMDB3983FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 29.75 V, 25 mA. 12 V429.75 V25 mA
SFDMDB4002FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 26.75 V, 20 mA. 12 V426.75 V20 mA
SFDMDB4013FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 1 LED string. Typical per-string output: 28.25 V, 120 mA. 12 V128.25 V120 mA
SFDMDB4026FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 2 LED strings. Typical per-string output: 27 V, 60 mA. 12 V227 V60 mA
SFDMDB4033FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 6 LED strings. Typical per-string output: 31 V, 10 mA. 12 V631 V10 mA
SFDMDB4066FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 30.25 V, 20 mA. 12 V330.25 V20 mA
SFDMDB4099FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 27 V, 50 mA. 12 V327 V50 mA
SFDMDB4109FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 27.5 V, 50 mA. 12 V327.5 V50 mA
SFDMDB4134FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 2 LED strings. Typical per-string output: 27 V, 60 mA. 12 V227 V60 mA
SFDMDB4158FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 31 V, 20 mA. 12 V431 V20 mA
SFDMDB4174FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 30.25 V, 20 mA. 12 V330.25 V20 mA
SFDMDB4183FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 28.75 V, 60 mA. 12 V328.75 V60 mA
SFDMDB4189FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 2 LED strings. Typical per-string output: 32 V, 60 mA. 12 V232 V60 mA
SFDMDB4201FEndicott Research Group SFDMDLED backlight driver, 12 V DC input, 6 LED strings. Typical per-string output: 21.55 V, 15.4 mA. 12 V621.55 V15.4 mA

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Input voltage
LED strings
String voltage (typ.)
Current per string (typ.)

Dimming and connections

SFDMDA3649F accepts an analog brightness command and generates the PWM signal on the board. It has a separate enable input. We’ll help check the control voltage and pinout against your controller.

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