ACT4514 データシートの表示（PDF） - Active-Semi, Inc
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ACT4514 Datasheet PDF : 16 Pages
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Active-Semi
ACT4514
Rev 1, 21-Jul-11
ELECTRICAL CHARACTERISTICS
(VIN = 14V, TA = 25°C, unless otherwise specified.)
PARAMETER
TEST CONDITIONS
Input Voltage
VIN UVLO Turn-On Voltage
VIN UVLO Hysteresis
Input Voltage Rising
Input Voltage Falling
VIN OVP Turn-Off Voltage
Input Voltage Rising
VIN OVP Hysteresis
Input Voltage Falling
Standby Supply Current
VEN = 3V, VFB = 1V
VEN = 3V, VO = 5V, No load
Shutdown Supply Current
VEN = 0V
Feedback Voltage
Internal Soft-Start Time
Error Amplifier Transconductance
VFB = VCOMP = 0.8V, ∆ICOMP = ± 10µA
Error Amplifier DC Gain
Switching Frequency
Foldback Switching Frequency
Maximum Duty Cycle
VFB = 0.808V
VFB = 0V
Minimum On-Time
COMP to Current Limit Transconductance VCOMP = 1.2V
Switch Current Limit
Duty = 50%
Slope Compensation
Duty = DMAX
ISET Voltage
ISET to IOUT DC Room Temp Current
Gain
IOUT / ISET
EN Threshold Voltage
EN Pin Rising
EN Hysteresis
EN Pin Falling
EN Internal Pull-up Current
High-Side Switch ON-Resistance
SW Off Leakage Current
VEN = VSW = 0V
Thermal Shutdown Temperature
Temperature Rising
MIN
10
9.05
32.5
792
190
82
0.75
TYP
9.35
1.1
34.5
1.75
1.0
2.5
75
808
400
650
4000
210
30
85
200
1.75
1.8
0.75
1
MAX
40
9.65
36.5
100
824
240
88
UNIT
V
V
V
V
V
mA
mA
µA
mV
µs
µA/V
V/V
kHz
kHz
%
ns
A/V
A
A
V
25000
A/A
0.8 0.85
V
80
mV
4
µA
0.3
Ω
1
10
µA
155
°C
Innovative PowerTM
-4-
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