S1F76680 Epson Electronics America, Inc., S1F76680 Datasheet - Page 5

• Manufacturer Part Number: S1F76680
• Description: Led Driver
• Manufacturer: Epson Electronics America, Inc.

1. DESCRIPTION
connection.
with an external luminance sensor.
with the ambient brightness can be set with a register of I
thebrightness level of the surrounding environment, this function makes this device a optimal LED driver for
mobile devices realizing high viewability and low power consumption.
2. FEATURES
S1F76680 Technical Manual (Rev.1.22)
S1F76680 is a LED driver that can drive four (three) white LEDs lamps for backlighting in parallel
Necessary power is supplied to LED by the charge pump type DC/DC converter incorporated in S1F76680.
Also, the charge pump type DC/DC converter selects 1x or1.5x voltages on its own according to necessity.
Maximum driving current to LED can be set with one external resistor.
With S1F76680, LED’s current value is changed in harmony with ambient brightness level, when connected
In this IC, a two-wire serial interface I
Allowing to configure the backlight that automatically selects optimal LED current value in accordance with
Drives four (three) white LEDs lamps in parallel connection
Sets LED maximum current value with an external resistor
Power saving operation due to booster magnification automatic switching function of an amp circuit
Driving with the LED current value changed in accordance to the ambient brightness level (automatic
luminance control) when connected with a luminance sensor
Allows setting of the automatic luminance control characteristic with I
Enable automatic luminance control/imperative fixed current selection with I
Acquires the information on ambient brightness with I
Incorporates a soft start circuit for activation with EN1 pin
Enable automatic luminance control circuit activation/stop selection with EN2 pin
Allows a drive at set maximum current with EN3 pin
Mass production form QFN5-32PIN (5.0mm × 5.0mm)
Not radiation- or light-proofed
2
C-Bus slave function is contained, and the current value in accordance
EPSON
2
C.
2
C
2
C
2
C
1. DESCRIPTION
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