ACT4065A 查看數據表（PDF） - Unspecified
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ACT4065A Datasheet PDF : 9 Pages
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ACT4065A
Rev 0, 23-Apr-12
ABSOLUTE MAXIMUM RATINGSc
PARAMETER
VALUE
UNIT
IN Supply Voltage
-0.3 to 30
V
SW Voltage
BS Voltage
EN, FB, COMP Voltage
-1 to VIN + 1
V
VSW - 0.3 to VSW + 7
V
-0.3 to 6
V
Continuous SW Current
Internally limited
A
Maximum Power Dissipation
0.76
W
Junction to Ambient Thermal Resistance (θJA )
Operating Junction Temperature
105
-40 to 150
°C/W
°C
Storage Temperature
-55 to 150
°C
Lead Temperature (Soldering, 10 sec)
300
°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
(VIN = 12V, TJ = 25˚C, unless otherwise specified.)
PARAMETER
Input Voltage
Feedback Voltage
High-Side Switch On Resistance
Low-Side Switch On Resistance
SW Leakage
High-Side Switch Current Limit
COMP to Current Limit Transcon-
ductance
Error Amplifier Transconductance
Error Amplifier DC Gain
Switching Frequency
Short Circuit Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Enable Threshold Voltage
Enable Pull-Up Current
Supply Current in Shutdown
IC Supply Current in Operation
Thermal Shutdown Temperature
SYMBOL TEST CONDITIONS
VIN
VFB
RONH
RONL
ILIM
VOUT = 5V, ILOAD = 1A
VCOMP = 1.5V
VEN = 0
Duty = 50%
GCOMP
GEA
AVEA
fSW
DMAX
ΔICOMP = ±10µA
VFB = 0
VFB = 0.7V
VFB = 1.0V
Hysteresis = 0.1V
Pin pulled up to 4.5V typically
when left unconnected
VEN = 0
VEN = 3V, VFB = 1.0V
Hysteresis = 10°C
MIN
6
0.792
190
0.75
TYP
0.808
0.22
8
1
3.5
MAX
30
0.824
10
3.4
650
4000
210 240
30
88
0
0.8 0.85
4
75
100
0.75
155
UNIT
V
V
Ω
Ω
µA
A
A/V
µA/V
V/V
kHz
kHz
%
%
V
µA
µA
mA
°C
Innovative PowerTM
-3-
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
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