ACT111A
Rev 0, 14-Feb-11
ABSOLUTE MAXIMUM RATINGS
PARAMETER
IN to G
SW to G
BST to G
FB to G
DIM to G
Continuous SW Current
Junction to Ambient Thermal Resistance (θ
JA
)
Maximum Power Dissipation
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
VALUE
-0.3 to 34
-1 to V
IN
+ 1
V
SW
- 0.3 to V
SW
+ 7
-0.3 to +6
-0.3 to +3
Internally Limited
220
0.5
-40 to 150
-55 to 150
300
UNIT
V
V
V
V
V
A
°C/W
W
°C
°C
°C
: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may
affect device reliability.
ELECTRICAL CHARACTERISTICS
(V
IN
= 12V, T
A
= 25°C, unless otherwise specified.)
PARAMETER
Input Voltage
V
IN
Turn-On Voltage
V
IN
UVLO Hysteresis
Supply Operation Current
Switching Frequency
Maximum Duty Cycle
Minimum On-Time
Effective FB Voltage
FB Leakage Current
CC Current Limit
PWM DIM Frequency
DIM Threshold Voltage
DIM Hysteresis
DIM Input Leakage
High-Side Switch On-Resistance
Low-Side Switch On-Resistance
Thermal Shutdown Temperature
Thermal Hysteresis
SYMBOL
V
IN
TEST CONDITIONS
Input Voltage Rising
MIN
4.8
4.0
TYP
4.4
250
MAX
30
4.7
UNIT
V
V
mV
V
FB
= 0.2V
1.15
V
FB
= 0.08V
90
1
1.4
92
75
2
1.65
95
mA
MHz
%
ns
5V
≤
V
IN
≤
20V
97
102
107
100
mV
nA
A
kHz
V
mV
Duty Cycle = 5%
1.8
2.4
3.0
10
DIM rising
DIM rising
1.66
100
1
0.3
15
160
10
µA
Ω
Ω
°C
°C
Innovative Power
TM
-3-
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