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ACT334 Scheda tecnica(PDF) 3 Page - Active-Semi, Inc

Il numero della parte ACT334
Spiegazioni elettronici  High Performance ActivePSR Primary Switching Regulator
PDF  11 Pages
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Produttore elettronici  ACTIVE-SEMI [Active-Semi, Inc]
Homepage  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT334 Scheda tecnica(HTML) 3 Page - Active-Semi, Inc

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ACT334
Rev 2, 14-Nov-12
Innovative Power
TM
- 3 -
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VDD = 14V, VOUT = 5V, LP = 1.6mH, NP = 140, NS = 8, NA = 23, TA = 25°C, unless otherwise specified.)
: Do not exceed these limits to prevent damage to the device. Exposure to absolute maximum rating conditions for long periods may
affect device reliability.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Supply
VDD Turn-On Voltage
VDDON
VDD Rising from 0V
17.6
18.6
19.6
V
VDD Turn-Off Voltage
VDDOFF
VDD Falling after Turn-on
5.25
5.5
5.75
V
Supply Current
IDD
VDD = 14V, after Turn-on
240
340
440
uA
Start Up Supply Current
IDDST
VDD = 14V, before Turn-on
25
45
µA
BD Current during Startup
IBDST
1
µA
Internal Soft Startup Time
10
ms
Oscillator
Switching Frequency
fSW
100% VOUTCV @ full load
80
kHz
25% VOUTCV @ full load
40
Maximum Switching Frequency
FCLAMP
89
98
107
kHz
Maximum Duty Cycle
DMAX
65
75
85
%
Feedback
Effective FB Voltage
VFB
2.17
2.192
2.216
V
FB Leakage Current
IFBLK
1
µA
Output Cable Resistance
Compensation
DVCOMP
No RCORD between VDD and SW
0
%
RCORD = 300k
3
RCORD = 150k
6
RCORD = 75k
9
RCORD = 33k
12
PARAMETER
VALUE
UNIT
VDD, BD, SW to GND
-0.3 to + 28
V
Maximum Continuous VDD Current
100
mA
FB, CS to GND
-0.3 to + 6
V
Continuous SW Current
Internally limited
A
Maximum Power Dissipation (derate 4.5mW/˚C above TA = 50˚C)(SOT23-6)
0.45
W
Junction to Ambient Thermal Resistance (θJA)(SOT23-6)
220
˚C/W
Operating Junction Temperature
-40 to 150
˚C
Storage Junction
-55 to 150
˚C
Lead Temperature (Soldering, 10 sec)
300
˚C



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