FAN5624 Fairchild Semiconductor, FAN5624 Datasheet

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FAN5624

Manufacturer Part Number
FAN5624
Description
Fan5622/24/26 -- Linear Led Drivers With Single-wire Digital Interface
Manufacturer
Fairchild Semiconductor
Datasheet

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Part Number
Manufacturer
Quantity
Price
Part Number:
FAN5624UMPX
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 2010 Fairchild Semiconductor Corporation
FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1
FAN5622 / FAN5624 / FAN5626
Linear LED Drivers with Single-Wire Digital Interface
Features
Applications
Ordering Information
Family of Three Linear Current-Sink LED Drivers that
Support 2, 4, or 6 LED Outputs
Current Sink Driver for Each LED Output:
Single-Wire Digital Control Interface for Easy
Programming
Less than 1µA Shut-Down Current
Short-Circuit, Under-Voltage, and Thermal Protection
Wide Input Voltage Range: 2.7 to 5.5V
Small Form-Factor Packages:
Mobile Handsets
Mobile Internet Devices
PMP and MP3 Players
LCD Modules
FAN5624UMPX
30mA Maximum Output Current
50mV Drop-out at 15mA I
Better than 3% Matching between Channels
External R
32 Linear Steps of Dimming Control
FAN5622: 6-pin Super SOT23
FAN5624: 10-lead 1.4x1.8x0.55mm UMLP
FAN5626: 10-lead 1.6x2.1x0.55mm MicroPak™ MLP
Part Number
FAN5622SX
FAN5626LX
SET
OUT
# of Channels
2
4
6
Temperature
-40 to 85°C
-40 to 85°C
-40 to 85°C
Range
Description
The FAN5622, FAN5624, and FAN5626 are two-, four-, and
six- channel current-sink linear LED drivers used to backlight
the main LCD displays or keypads in mobile electronics, such
as cellular phone handsets.
A very low dropout of 50mV allows driving LEDs without any
inductors or switch capacitors. The brightness levels of the
LED outputs are programmed through single-wire digital
control interface. The user can program 32 linear dimming
steps and turn on and off the LEDs through this interface by
applying digital pulses.
The FAN562x family of linear LED drivers provides high
efficiency due to the low drop-out voltage of the LED driver.
Good matching between different channels of LED output is
provided across the entire 32 dimming steps. These LED
drivers also integrate short circuit, under-voltage, and thermal
protection to ensure for a more robust solution.
The FAN5622, FAN5624, and FAN5626 are available in very
small form-factor packages: 6-pin Super SOT23, 10-lead
UMLP, and 10-lead MicroPak™ MLP, respectively.
Figure 1. Typical Application of FAN5622
6-Lead SSOT23
10-Lead UMLP
10-Lead MicroPak™ MLP
Package
www.fairchildsemi.com
Tape and Reel
Tape and Reel
Tape and Reel
Packing
May 2010

Related parts for FAN5624

FAN5624 Summary of contents

Page 1

... These LED drivers also integrate short circuit, under-voltage, and thermal protection to ensure for a more robust solution. The FAN5622, FAN5624, and FAN5626 are available in very small form-factor packages: 6-pin Super SOT23, 10-lead UMLP, and 10-lead MicroPak™ MLP, respectively. ...

Page 2

... Applications Diagrams Block Diagram GND CTRL VIN ISET © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 Figure 2. FAN5624 Typical Application for 4 LEDs Figure 3. FAN5626 Typical Application for 6 LEDs Under-Voltage Over-Temp Lockout Lockout Single-Wire Digital Interface DAC Figure 4. Block Diagram ...

Page 3

... Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 LED6 LED5 LED4 ISET VIN GND CTRL Figure 7. FAN5626: 10-Lead MicroPak™ MLP, Top View Name Input Voltage. Connect to 2.7-5.5V ...

Page 4

... Junction-to-Ambient Thermal Resistance, MicroPak™ MLP10 package JA_MicroPAK_MLP10 Notes: 2. Recommended not to exceed 132mW of maximum power dissipation. 3. Recommended not to exceed 198mW of maximum power dissipation. © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 Parameter Human Body Model per JESD22-A114 Charged Device Model per JESD22-C101 Parameter (2) 4 Min ...

Page 5

... Note: 4. For the two, four, and six LED current sinks of FAN5622, FAN5624, and FAN5626 respectively; the following are determined: the maximum sink current of the two, four, and six LED outputs (MAX); the minimum sink current of the two, four, and six outputs (MIN); and the average sink current (AVG). For all of the LED outputs, two matching numbers are calculated: (MAX-AVG)/ AVG and (AVG-MIN)/AVG ...

Page 6

... Typical Performance Characteristics Figure 8. Efficiency vs. Input Voltage where LED V Figure 10. Current Match of Channels vs. Input Voltage Figure 12. Shutdown Current vs. Input Voltage © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 =3.2V Figure 9. Dropout Voltage vs. Input Voltage F Figure 11. Load Regulation at 15mA/Output Figure 13. Quiescent Current vs. Input Voltage 6 www ...

Page 7

... Typical Performance Characteristics Figure 14. Startup Waveform for FAN5626 Figure 16. Dimming Operation © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 Figure 15. Shutdown Waveform for FAN5626 7 www.fairchildsemi.com ...

Page 8

... Circuit Description The FAN5622, FAN5624, and FAN5626 are a family of current-sink linear LED driver ICs able to drive two, four, and six LEDs respectively. These three devices are powered directly from 2.7V to 5.5V supply and all the channels are controlled via the integrated current sinks from the external power source ...

Page 9

... Digital Dimming Control © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 Figure 17. Digital Pulse Dimming Control Diagram 9 www.fairchildsemi.com ...

Page 10

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 Figure 18. FAN5622: 6-Lead SSOT23 10 www.fairchildsemi.com ...

Page 11

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 Figure 19. FAN5624: 10-Lead UMLP 11 www.fairchildsemi.com ...

Page 12

... Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2010 Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0 1.12 1.60 ...

Page 13

... Fairchild Semiconductor Corporation FAN5622 / FAN5624 / FAN5626 • Rev. 1.0.1 13 www.fairchildsemi.com ...

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