AL8807W5-7 Diodes Inc., AL8807W5-7 Datasheet
AL8807W5-7
Manufacturer Part Number
AL8807W5-7
Description
LED Display Drivers LED LV Int Switch
Manufacturer
Diodes Inc.
Datasheet
1.AL8807W5-7.pdf
(21 pages)
Specifications of AL8807W5-7
Product Category
LED Display Drivers
Rohs
yes
Mounting Style
SMD/SMT
Package / Case
SOT-25
Operating Supply Voltage
6 V to 36 V
Maximum Supply Current
1.8 mA
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AL8807W5-7
Manufacturer:
CIRRUS
Quantity:
500
Part Number:
AL8807W5-7
Manufacturer:
DIODES/美台
Quantity:
20 000
P2
P1
Description
The AL8807 is a step-down DC/DC converter designed to
drive LEDs with a constant current. The device can drive up
to 9 LEDs, depending on the forward voltage of the LEDs, in
series from a voltage source of 6V to 36V. Series connection
of the LEDs provides identical LED currents resulting in
uniform brightness and eliminating the need for ballast
resistors. The AL8807 switches at frequency up to 1MHz with
controlled rise and fall times to reduce EMI. This allows the
use of small size external components, hence minimizing the
PCB area needed.
Maximum output current of AL8807 is set via an external
resistor connected between the V
Dimming is achieved by applying either a DC voltage or a
PWM signal at the CTRL input pin. An input voltage of 0.4V
or lower at CTRL switches off the output MOSFET simplifying
PWM dimming.
Features
•
•
•
•
•
•
•
•
•
Notes:
Typical Application Circuit
AL8807
Document number: DS35281 Rev. 4 - 2
DFLS 2100
DFLS 2100
LED driving current up to 1.3A (MSOP-8EP)
Better than 5% accuracy
High efficiency up to 96%
Optimally controlled switching speeds
Operating input voltage from 6V to 36V
PWM/DC input for dimming control
Built-in output open-circuit protection
SOT25: Available in “Green” Molding Compound (No Br,
Sb) with lead Free Finish/ RoHS Compliant (Note 1)
MSOP-8EP Available in “Green” Molding Compound (No
Br, Sb) with lead Free Finish/ RoHS Compliant (Note 1)
1. EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2). All applicable RoHS exemptions applied.Please visit our website at
http://www.diodes.com/products/lead_free.html.
D 4
D3
GND
C5
DFLS 2100
DFLS 2100
100nF
D 5
D2
IN
C 2
150µF
and SET input pins.
HIGH EFFICIENCY LOW EMI 36V 1A BUCK LED DRIVER
150µF
C3
www.diodes.com
1 of 21
100 nF
C 1
Pin Assignments
Applications
•
•
•
•
MR16 lamps
General illumination lamps
12V powered LED Lamps
24V powered LED Lamps
CTRL
0 R15
GND
D1
DFLS 2100
R1
CTRL
GND
GND
SET
CTRL
GND
AL8807
SW
SW
U 1
MSOP-8EP
(Top View)
(Top View)
SOT25
L 1
33µH
C 4
1µF
V
SET
AL8807
IN
© Diodes Incorporated
V
N/C
SW
SW
IN
June 2012
ANODE
CATHODE
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