ACT361
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VDD, BD, SW to G
Maximum Continuous VDD Current
FB, CS to G
Continuous SW Current
Maximum Power Dissipation (derate 4.5mW/˚C above T
A
= 50˚C)
Junction to Ambient Thermal Resistance (θ
JA
)
Operating Junction Temperature
Storage Junction
Lead Temperature (Soldering, 10 sec)
Rev 8, 14-Nov-12
VALUE
-0.3 to +28
100
-0.3 to +6
Internally limited
0.45
220
-40 to 150
-55 to 150
300
UNIT
V
mA
V
A
W
˚C/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
DD
= 14V, V
OUT
= 5V, L
P
= 2.3mH, N
P
= 140, N
S
= 10, N
A
= 27, T
A
= 25°C, unless otherwise specified.)
PARAMETER
Supply
VDD Turn-On Voltage
VDD Turn-Off Voltage
Supply Current
Start Up Supply Current
BD Current during Startup
Internal Soft Startup Time
Oscillator
Switching Frequency
Maximum Switching Frequency
Maximum Duty Cycle
SYMBOL
V
DDON
V
DDOFF
I
DD
I
DDST
I
BDST
TEST CONDITIONS
V
DD
Rising from 0V
V
DD
Falling after Turn-on
V
DD
= 14V, after Turn-on
V
DD
= 14V, before Turn-on
MIN
17.6
5.25
TYP
18.6
5.5
1
25
MAX
19.6
5.75
2
45
1
UNIT
V
V
mA
µA
µA
ms
10
f
SW
F
CLAMP
D
MAX
100% V
OUTCV
@ full load
25% V
OUTCV
@ full load
45
70
42
21
55
75
80
kHz
kHz
%
Feedback
Effective FB Voltage
FB Leakage Current
V
FB
I
FBLK
No R
CORD
between VDD and SW
R
CORD
= 300k
Output Cable Resistance
Compensation
DV
COMP
R
CORD
= 150k
R
CORD
= 75k
R
CORD
= 33k
0
3
6
9
12
%
2.176
2.200
2.224
100
V
nA
Innovative Power
TM
-3-
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Copyright © 2012 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
