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Fairchild Semiconductor - Compact 6-Channel LED Driver

Numéro de référence FAN5701
Description Compact 6-Channel LED Driver
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor 





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FAN5701 fiche technique
www.DataSheet4U.com
April 2010
FAN5701 — Compact 6-LED Driver for Mobile Platforms
FeaturesSix (6) Parallel LEDs (up to 30mA each)
ƒ Total Package Load Current Capability: 180mA
ƒ Two Default Groups of Four (4) and Two (2) LEDs for
Main and Sub-Display Lighting with Individual PWM
Dimming Controls that Operate up to 20kHz
ƒ >600:1 Dimming Ratio for 100Hz PWM Frequency
ƒ Up to 92% Efficiency
ƒ Built-in 1.5x Charge Pump with Low-Dropout Bypass
Switch
ƒ Wide Input Range: 2.7V to 5.5V
ƒ VOUT Over-Voltage and Short-Circuit Protection
ƒ Over-Temperature Protection
ƒ 1.2MHz Switching Frequency for Small-Sized
Capacitors
ƒ 16-Bump 1.61mm x 1.61mm WLCSP (0.6mm Height)
ƒ 16-Lead 3.0mm x 3.0mm UMLP (0.55mm Height)
ApplicationsLCD Backlighting
ƒ Keypad Backlighting
ƒ Mobile Handsets
ƒ Portable Media Player
DescriptionThe FAN5701 is a highly integrated and
efficient charge-pump-based multi-LED driver. The device
can drive up to six LEDs in parallel with a total output current
of 180mA.
The FAN5701 is capable of driving a primary display
backlight requiring four to six LEDs. When more than four
LEDs are needed for backlighting, the FAN5701’s two PWM
dimming inputs can be connected together to provide the
proper dimming control for all six LEDs. When a primary and
sub-display is needed, the FAN5701 can be controlled such
that each group can be dimmed independently. For candy-
bar phones requiring a primary display and simple keypad
lighting, the FAN5701 offers a simple and compact lighting
solution.
Regulated internal current sinks deliver excellent current and
brightness matching to all six LEDs. The device provides
excellent efficiency without an inductor by operating the
charge pump in 1.5x or pass-through modes.
The FAN5701 can be ordered with default ISET values of
30mA, 20mA, 15mA, or 8mA and available in WLCSP or
ultra-thin UMLP package types. The default ISET is always
determined by the part number purchased (see Ordering
Information).
Ordering Information
Part Number
FAN5701UC30X
FAN5701UC20X
FAN5701UC15X
FAN5701UC08X
FAN5701UMP30X (Preliminary)
FAN5701UMP20X (Preliminary)
FAN5701UMP15X (Preliminary)
FAN5701UMP08X (Preliminary)
LED Current
(ISET)
30mA
20mA
15mA
8mA
30mA
20mA
15mA
8mA
Temperature
Range
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
-40°C to 85°C
Package
WLCSP-16, 0.4mm Pitch
WLCSP-16, 0.4mm Pitch
WLCSP-16, 0.4mm Pitch
WLCSP-16, 0.4mm Pitch
UMLP-16, 3.0 x 3.0 x 0.55mm
UMLP-16, 3.0 x 3.0 x 0.55mm
UMLP-16, 3.0 x 3.0 x 0.55mm
UMLP-16, 3.0 x 3.0 x 0.55mm
Packing
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
Tape and Reel
© 2009 Fairchild Semiconductor Corporation
FAN5701 • Rev. 1.0.2
www.fairchildsemi.com

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