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Endicott Research Group

ERG SFDZ LED backlight drivers

SFDZ and SFDZD Zenith drivers support multi-string LCD backlights, including dual-light-bar configurations. Select the output current, string allocation, and control interface together.

11 Part numbers
12 V DC Input voltage options
3, 4, 8 LED string options
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At a glance

SFDZ configuration options

Family
Zenith
Dimming control
External or onboard, by configuration
Input voltage options
12 V DC
LED string options
3, 4, 8
String voltage (typical, varies by part)
24.5–43 V
Current per string (typical, varies by part)
85–160 mA

Tell us how many strings each light bar uses and the current per string. We can help compare Zenith configurations and their dimming connections.

SFDZ part numbers.

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Input voltage
LED strings
String voltage (typ.)
Current per string (typ.)
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11 products
SFDZB4272FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 43 V, 85 mA. 12 V443 V85 mA
SFDZDB3979FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 24.5 V, 129 mA. 12 V424.5 V129 mA
SFDZDB4005FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 8 LED strings. Typical per-string output: 24.5 V, 128 mA. 12 V824.5 V128 mA
SFDZDB4100FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 8 LED strings. Typical per-string output: 26.5 V, 102 mA. 12 V826.5 V102 mA
SFDZDB4101FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 24.5 V, 113 mA. 12 V424.5 V113 mA
SFDZDB4197FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 34 V, 121 mA. 12 V334 V121 mA
SFDZDB4200FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 42 V, 110 mA. 12 V442 V110 mA
SFDZDB4220FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 25 V, 105 mA. 12 V425 V105 mA
SFDZDB4252FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 3 LED strings. Typical per-string output: 42 V, 120.3 mA. 12 V342 V120.3 mA
SFDZDB4275FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 28.5 V, 120 mA. 12 V428.5 V120 mA
SFDZDB4525FEndicott Research Group SFDZLED backlight driver, 12 V DC input, 4 LED strings. Typical per-string output: 24.5 V, 160 mA. 12 V424.5 V160 mA

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

Dimming and connections

SFDZB4272F uses external PWM and a flat-flex output on a 127.0 × 34.3 mm board. SFDZD options have different control arrangements; we’ll help confirm the connection for your controller.

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