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SP7680EB Datasheet(PDF) 6 Page - Sipex Corporation

Part # SP7680EB
Description  Complete Backlight Solution
Download  16 Pages
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Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP7680EB Datasheet(HTML) 6 Page - Sipex Corporation

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June 21-07 revH
SP7680: Complete Backlight Solution
2007 Sipex Corporation
Page 6
PIN DESCRIPTION
PIN #
PIN NAME
DESCRIPTION
6
VIN
Input voltage for the regulator. Connect a 2.2µF decoupling capacitor
between this pin and ground.
12-16
1,2
LED1-LED 5
LED6,LED7
Connect an LED between each pin and VOUT. Current value is
controlled by the serial interface. The current level through each pin is
internally matched within 3%. This current value can be programmed
to any level for MAIN or SUB LEDs with 0.5mA step (64 steps total).
Voltage at these pins is internally monitored to control the switching
between 1x and 1.5x mode in order to ensure the best possible
efficiency.
5
VOUT
Output of the charge pump. Place a 1µF decoupling capacitor from
this pin to ground. This voltage is regulated by the 1x or 1.5x charge
pump to create voltage sufficient to operate the current sources.
11
GND
Ground pin.
3,4
SDA,SCL
Clock and data inputs for I
2C interface. Connect a 100K pull-up to
VIN or Vcc.
7,8
C1-, C1+
Connect 0.47µF ceramic capacitor between these pins.
9,10
C21, C2+
Connect 0.47µF ceramic capacitor between these pins.
-
Thermal Pad
Connect to GND.
SP7680 FUNCTIONAL DIAGRAM
2.2uF


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