AL9910SP-13 Diodes Zetex, AL9910SP-13 Datasheet - Page 2

• Manufacturer Part Number: AL9910SP-13
• Manufacturer: Diodes Zetex

Specifications of AL9910SP-13

• Lead Free Status / Rohs Status: Compliant

Pin Descriptions
Functional Block Diagram
AL9910/AL9910A/AL9910-5
Document number: DS 35103 Rev. 3 - 2
Pin Name
PWM_D
EP PAD
R
GND
Gate
V
V
CS
LD
OSC
DD
IN
V
V
DD
DD
SO-8
N/A
1
2
3
4
5
6
7
8
V
V
IN
IN
PWM_D
PWM_D
SO-8EP
EP
1
2
3
4
5
6
7
8
V
V
V
V
LD
LD
DD
DD
IN
IN
Device ground
Drives the gate of the external MOSFET switch.
Exposed Pad (bottom). Connect to GND directly underneath the package.
Input voltage
Senses LED string and external MOSFET switch current
Low Frequency PWM Dimming pin, also Enable input. Internal 100kΩ pull-down to GND
Internally regulated supply voltage.
Can supply up to 1 mA for external circuitry. A sufficient storage capacitor is used to
provide storage when the rectified AC input is near the zero crossing.
Linear Dimming input. Changes the current limit threshold at current sense comparator
and changes the average LED current.
Oscillator control. A resistor connected between this pin and ground sets the PWM
frequency. The devices can be switched into constant off time (PFM) mode by connecting
the external oscillator resistor between R
•
•
250mV
250mV
GND
GND
LDO
LDO
100k
100k
7.5V nominal for AL9910 and
10V nominal for AL9910A.
OTP
OTP
UNIVERSAL HIGH VOLTAGE HIGH BRIGHTNESS LED
AL9910/AL9910A
AL9910/AL9910A
www.diodes.com
7.5/10V
7.5/10V
2 of 15
AL9910/AL9910A/AL9910-5
S
S
R
R
O
O
Descriptions
OSC
OSC
OSC
pin and the gate of the external MOSFET.
R
R
GATE
GATE
CS
CS
OSC
OSC
R
R
SENSE
SENSE
© Diodes Incorporated
June 2011
DRIVER