aoz1950 Alpha & Omega Semiconductor, aoz1950 Datasheet - Page 2

• Manufacturer Part Number: aoz1950
• Description: Boost Regulator White Led Driver
• Manufacturer: Alpha & Omega Semiconductor

Ordering Information
Pin Configuration
Pin Description
Rev. 1.0 January 2010
Part Number
Number
AOZ1950DI
PAD1
PAD2
10
1
2
3
4
5
6
7
8
9
AOS Green Products use reduced levels of Halogens, and are also RoHS compliant.
Please visit
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Name
COMP
PGND
AGND
AGND
VOUT
DIM
IND
VIN
EN
FB
LX
LX
Ambient Temperature Range
-40°C to +85°C
Power Ground.
Top load switch. Connect to inductor.
Input voltage.
Output voltage.
LED Current Feedback Input. The FB voltage is regulated at 300mV in normal operation.
The FB sense resistor sets the nominal LED current.
Compensation pin. Typically connected to RC filter network.
Analog Brightness Control Input. DIM controls the LED brightness by adjusting the LED
current in proportion to DIM voltage. The input range of DIM is between 250mV to
750mV, for -12% and +12% adjustment respectively. When DIM voltage is connected to
VIN, the LED current is 100% of the normal setting.
Controller Ground.
Enable Input. Pull EN high to enable the LED driver output and pull EN low to disable the
LED driver output. The user can use EN pin for PWM dimming. The input frequency
range of EN is between 200Hz and 1kHz.
Boost Regulator Switching Node.
Boost Regulator Switching Node.
Controller Ground.
PGND
VOUT
IND
VIN
FB
1
2
3
4
5
www.aosmd.com
3x3 DFN-10
AOZ1950DI
(Top View)
(AGND)
PAD1
PAD2
(LX)
for additional information.
3 x 3 DFN-10
Description
10
Package
9
8
7
6
LX
EN
AGND
DIM
COMP
Environmental
RoHS Compliant
Green Product
AOZ1950
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