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PDF FAN5646 Data sheet ( Hoja de datos )

Número de pieza FAN5646
Descripción LED Blinker
Fabricantes Fairchild Semiconductor　
Logotipo Fairchild Semiconductor Logotipo



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No Preview Available ! FAN5646 Hoja de datos, Descripción, Manual

May 2013
FAN5646
Programmable Indicator ―Soft‖ LED Blinker with TinyWire™
Single-Wire Interface
Features
LED “Soft” Blink: with Logarithmic Fade Up and Fade
Down for Power Savings
Follow or Repeat Pattern Mode for Blinking when
Applications Processor is Powered Down
Default Pattern Optionally Modified using TinyWire™
Single-Wire Digital Control for:
– LED Current Rise / Fall Time
– tON and tOFF for Up to Two Pulses
High-Side Constant Current LED Driver:
– 20 mA Maximum Output Current
– 80 mV Drop-out at 20 mA IOUT
– External RSET (SC70 only) or Internal Current
Programming
35 A Operating Quiescent Current
Short-Circuit, Under-Voltage, and Thermal Protections
Wide Input Range: 2.7 to 5.5 V
4-Bump WLCSP, 0.4 mm pitch or
5-Lead SC70 (EIAJ SC88)
Applications
Cell Phone
Pocket PCs and Digital Cameras
Bluetooth® Headsets PMP and MP3 players
Description
The FAN5646 is a flexible and compact solution for a blinking
or “breathing” LED indicator. The internal programmable blink
algorithm eliminates any need for continual system processor
control. This means longer battery life for a hand-held system
because the system processor is not awakened from sleep
mode to blink an LED.
Very low dropout of 80 mV allows driving an LED without any
inductors or switch capacitors. LED blink rate, rise and fall
time, and CTRL line behavior can be programmed by a
TinyWire™ single-wire digital interface. The on-time and time
between pulses can be set for up to two different pulse widths.
The default for FAN5646 option 01 is “follow” mode, where the
LED turns on with the programmed rise time, then stays on as
long as CTRL remains HIGH. When CTRL falls, the LED turns
off at the programmed fall time. For option 00; when CTRL is
HIGH continuously, the LED repeats the programmed pattern.
The FAN5646 is available in a four-pin wafer-level chip-scale
package with 0.4 mm pitch or a five-lead SC70 package.
2.7 to 5.5V
0.1
VIN 1
GND 2
ISET
3
5 LED+
4 CTRL
R=24.3kW
Figure 1. Typical Application
Ordering Information
Part Number
FAN5646UC00X
FAN5646S700X
FAN5646UC01X
FAN5646S701X
Option Follow Bit Default Temperature Range
Package
Packing
00 0
-40 to 85°C
WLCSP-4, 0.4mm Pitch Tape and Reel
00 0
-40 to 85°C
5-Lead SC70, EIAJ SC88 Tape and Reel
01 1
-40 to 85°C
WLCSP-4, 0.4mm Pitch Tape and Reel
01 1
-40 to 85°C
5-Lead SC70, EIAJ SC88 Tape and Reel
Bluetooth® is a registered trademark of Bluetooth SIG, Inc.
Important: Contact a Fairchild Semiconductor sales representative for additional performance information and specifications.
© 2009 Fairchild Semiconductor Corporation
FAN5646 • Rev. 1.0.3
www.fairchildsemi.com

1 page




FAN5646 pdf
Typical Characteristics
100
90
80
70
60
50
40
30 VF = 3.3V
20 IOUT = 15mA
10
0
3.00
3.50
4.00
4.50
VIN [V]
5.00
Figure 5. Efficiency at 25C
5.50
300
280
260
240
25°C
85°C
220
200
-40°C
180
160
140
120
100
2.50 3.00 3.50 4.00 4.50 5.00 5.50
VIN [V]
Figure 6. Active Mode Supply Current (LED+ = ON)
60
50
85°C
40 25°C
30
-40°C
20
10
0
2.50 3.00 3.50 4.00 4.50 5.00
VIN [V]
Figure 7. Quiescent Current (ILED = 0 mA)
5.50
25
20
25°C
15
-40°C
10
85°C
5
0
0.00 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
VIN - VOUT [V]
Figure 8. Output Current vs. Headroom Voltage
22
20
18
16
14
12
10
8
6
4
2
0
0 100 200 300 400
RSET [kW]
Figure 9. Output Current vs. RSET at 25C
500
© 2009 Fairchild Semiconductor Corporation
FAN5646 • Rev. 1.0.3
5
www.fairchildsemi.com

5 Page





FAN5646 arduino
Physical Dimensions
0.03 C
2X E
F
A
B
BALL A1
INDEX AREA
D
TOP VIEW
0.03 C
2X
0.05 C
0.06 C
0.625
0.547
E
0.40
A1
0.40
Ø0.20
Cu Pad
Ø0.30
Solder Mask
RECOMMENDED LAND PATTERN
(NSMD PAD TYPE)
0.378±0.018
0.208±0.021
C SEATING PLANE
D SIDE VIEWS
0.40
0.005 C A B
Ø0.260±0.020
4X
B (Y)±0.018
0.40 A
12
(X)±0.018
F
BOTTOM VIEW
NOTES:
A. NO JEDEC REGISTRATION APPLIES.
B. DIMENSIONS ARE IN MILLIMETERS.
C. DIMENSIONS AND TOLERANCE
PER ASME Y14.5M, 1994.
D. DATUM C IS DEFINED BY THE SPHERICAL
CROWNS OF THE BALLS.
E. PACKAGE NOMINAL HEIGHT IS 586 MICRONS
±39 MICRONS (547-625 MICRONS).
F. FOR DIMENSIONS D, E, X, AND Y SEE
PRODUCT DATASHEET.
G. DRAWING FILNAME: MKT-UC004ACrev2.
Figure 15. 4-Bump WLCSP, 0.4 mm Pitch
Product-Specific Dimensions
Product
D
FAN5646UC
0.820 mm
E
0.820 mm
X
0.210 mm
Y
0.210 mm
Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without
notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most
recent revision. 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/.
© 2009 Fairchild Semiconductor Corporation
FAN5646 • Rev. 1.0.3
11
www.fairchildsemi.com

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