ACT4060 データシートの表示（PDF） - Unspecified
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ACT4060 Datasheet PDF : 10 Pages
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ACT4060
Rev8, 24-Jul-07
ABSOLUTE MAXIMUM RATINGS
PARAMETER
IN Supply Voltage
SW Voltage
BS Voltage
EN, FB, COMP Voltage
Continuous SW Current
Junction to Ambient Thermal Resistance (θJA)
Maximum Power Dissipation
Operating Junction Temperature
Storage Temperature
Lead Temperature (Soldering, 10 sec)
VALUE
-0.3 to 25
-1 to VIN + 1
VSW - 0.3 to VSW + 8
-0.3 to 6
Internally Limited
105
0.76
-40 to 150
-55 to 150
300
UNIT
V
V
V
V
A
°C/W
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
(VIN = 12V, TA = 25°C, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Input Voltage
Feedback Voltage
High-Side Switch On Resistance
Low-Side Switch On Resistance
SW Leakage
Current Limit
COMP to Current Limit
Transconductance
Error Amplifier Transconductance
Error Amplifier DC Gain
Switching Frequency
Short Circuit Switching Frequency
Maximum Duty Cycle
Minimum Duty Cycle
Enable Threshold Voltage
VIN
VFB
RONH
RONL
ILIM
GCOMP
GEA
AVEA
fSW
DMAX
VOUT = 5V, ILOAD = 0A to 1A
7
4.75V ≤ VIN ≤ 20V, VCOMP = 1.5V 1.267
VEN = 0
2.4
ΔICOMP = ±10µA
350
VFB = 0
VFB = 1.1V
VFB = 1.4V
Hysteresis = 0.1V
0.7
Enable Pull-Up Current
Pin pulled up to 4.5V typically
when left unconnected
Supply Current in Shutdown
IC Supply Current in Operation
Thermal Shutdown Temperature
VEN = 0
VEN = 3V, VFB = 1.4V
Hysteresis = 10°C
TYP
1.293
0.20
4.7
0
2.85
1.8
550
4000
420
50
90
1
2
8
0.7
160
MAX
20
1.319
10
490
0
1.3
20
UNIT
V
V
Ω
Ω
µA
A
A/V
µA/V
V/V
kHz
kHz
%
%
V
µA
µA
mA
°C
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