Active-Semi
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VDD, FREQ to GND
VDD Current
DRV, DRV1, DRV2 to GND
Continuous DRV, DRV1, DRV2 Current
Maximum Power Dissipation
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
TO-92
SOT23-B
Rev 5, 05-Jun-09
ACT30
UNIT
V
mA
V
A
W
˚C
˚C
˚C
VALUE
-0.3 to 6
20
-0.3 to 18
Internally limited
0.6
0.39
-40 to 150
-55 to 150
300
: 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
VDD
= 4V, T
J
= 25°C, unless otherwise specified.)
PARAMETER
V
VDD
Start Voltage
DRV1 Start Voltage
DRV1 Short-Circuit Detect Threshold
V
VDD
Under-Voltage Threshold
V
VDD
Clamp Voltage
Startup Supply Current
Supply Current
Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Effective Current Limit
V
VDD
to DRV1 Current Coefficient
VDD Dynamic Impedance
DRV1 or DRV2 Driver On-
Resistance
DRV1 Rise Time
DRV1 Fall Time
DRV1 and DRV2 Switch Off Current
SYMBOL
V
START
V
DRVST
V
SCDRV
V
UV
I
DDST
I
DD
f
SW
D
MAX
D
MIN
I
LIM
G
GAIN
R
VDD
R
DRV1,
R
DRV2
TEST CONDITIONS
Rising edge
ACT30A
DRV1 must be
higher than this
voltage to start up. ACT30B
MIN
4.75
TYP
5
8.6
9.6
MAX UNIT
5.25
10.5
11.5
7.25
3.63
5.95
0.45
1
80
83
V
V
V
V
mA
mA
kHz
%
%
480
920
mA
A/V
kΩ
Ω
ns
ns
30
µA
V
6.35
Falling edge
10mA
V
VDD
= 4V before V
UV
ACT30A/B or FREQ = 0
ACT30A, V
VDD
= 4V
ACT30B, V
VDD
= 4V
V
VDD
= 4.6V
ACT30A
V
VDD
= V
UV
+ 0.1V
ACT30B with
DRV1 = DRV2
340
680
50
67
60
3.17
5.15
6.8
3.35
5.45
0.23
0.7
65
75
3.5
400
800
-0.29
9
I
DRV1
= I
DRV2
= 0.05A
1nF load, 15Ω pull-up
1nF load, 15Ω pull-up
Driver off, V
DRV1
= V
DRV2
= 10V
3.6
30
20
12
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TM
ActiveSwitcher
TM
-3-
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