aoz1083ci Alpha & Omega Semiconductor, aoz1083ci Datasheet - Page 3

• Manufacturer Part Number: aoz1083ci
• Description: 1.2 A Buck Led Driver
• Manufacturer: Alpha & Omega Semiconductor

Absolute Maximum Ratings
Exceeding the Absolute Maximum Ratings may damage the
device.
Note:
1. Devices are inherently ESD sensitive, handling precautions are
Electrical Characteristics
T
guaranteed by design.
Supply Voltage (V
LX to GND
DIM to GND
FB to GND
BST to AGND
Junction Temperature (T
Storage Temperature (T
ESD Rating
V
PWM DIMMING
MODULATOR
POWER STATE OUTPUT
A
V
V
Symbol
I
V
V
T
required. Human body model rating: 1.5 k
R
R
LEAKAGE
Rev. 1.0 July 2011
FB_LOAD
V
Dim_OFF
Dim_HYS
FB_LINE
ON_MIN
= 25 °C, V
Dim_ON
D
DS(ON)
DS(ON)
V
I
V
I
T
UVLO
I
I
OFF
I
DIM
VIN
MAX
LIM
f
VIN
FB
FB
O
SS
(1)
Supply Voltage
Input Under-Voltage Lockout Threshold
UVLO Hysteresis
Supply Current (Quiescent)
Shutdown Supply Current
Feedback Voltage
Load Regulation
Line Regulation
Feedback Voltage Input Current
Dimming Input Threshold
Dimming Input Hysteresis
Dimming Input Current
Frequency
Maximum Duty Cycle
Minimum On Time
Current Limit
Over-Temperature Shutdown Limit
Soft Start Interval
NMOS On-Resistance
NMOS On-Resistance
NMOS Leakage
VIN
Parameter
= V
VIN
DIM
)
= 12 V. Specifications in BOLD indicate a temperature range of -40 °C to +85 °C. These specifications are
S
J
)
)
Parameter
Ω
in series with 100 pF.
-0.7 V to V
-65 °C to +150 °C
Rating
-0.3 V to 26 V
-0.3 V to 6 V
V
VIN
+150 °C
LX
www.aosmd.com
I
V
120 mA < Load < 1.08 A
Load = 600 mA
V
Off Threshold
T
V
V
T
On Threshold
T
V
V
V
+ 2 V
+ 6 V
OUT
30 V
2 kV
A
J
J
VIN
VIN
DIM
FB
IN
IN
DIM
Rising
Falling
= 25 ºC
= 12 V
= 3.3 V
= 280 mV
Rising
Falling
= 0, V
= 0 V
= 0 V, V
Recommended Operating Conditions
The device is not guaranteed to operate beyond the
Recommended Operating Conditions.
Note:
2. The value of
Conditions
FB
Supply Voltage (V
Output Voltage Range
Ambient Temperature (T
Package Thermal Resistance (Θ
FR-4 board with 2 oz. Copper, in a still air environment with
T
user’s specific board design.
LX
SOT23-6L
A
= 1 V, V
= 25 °C. The value in any given application depends on the
= 0 V
DIM
(2)
Θ
> 1.2 V
Parameter
JA
is measured with the device mounted on a 1-in
VIN
)
A
)
Min.
266
2.3
1.2
1.2
1.5
3
JA
)
Typ.
0.03
200
200
280
500
100
150
110
400
240
380
1.5
0.5
1.9
87
1
Max.
Up to 0.85 x V
-40 °C to +85 °C
294
2.9
1.5
0.4
1.8
2.3
26
10
8
3
AOZ1083
Rating
3.0 V to 26 V
Page 3 of 12
220 °C/W
Units
% / V
MHz
mΩ
mΩ
mV
mA
mV
mV
μA
μA
μA
nA
°C
°C
ns
μs
%
%
V
V
V
V
V
A
2
VIN