ACT6390/ACT6391
Rev PrA, 01-Sep-07
ELECTRICAL CHARACTERISTICS
(V
IN
= V
EN
= 3V, V
FREQ
= 0V, T
A
= 25°C, unless otherwise specified.)
PARAMETER
Switch Voltage Rating
Input Voltage
Under Voltage Lockout Threshold
Under Voltage Lockout Hysteresis
V
IN
Rising
TEST CONDITIONS
MIN
2.7
2.2
TYP
MAX
12
5.5
UNIT
V
V
V
mV
2.35
65
0.2
2.5
0.35
4
4
10
910
1700
92
1.26
80
0.15
240
2.3
3.4
0.4
0.3
15
V
FB
= 1.3V, Not Switching
Quiescent Supply Current
Supply Current in Shutdown
Switching Frequency
Maximum Duty Cycle
FB Feedback Voltage
FB Input Current
FB Voltage Line Regulation
Error Amplifier Trans-conductance
Error Amplifier Output Current
Switch Current Limit
Switch On Resistance
Switch Leakage Current
Current Sense Trans-resistance
Soft Start Pin Bias Current
Soft Start Reset Resistance
Logic High Threshold
Logic Low Threshold
EN Input Current
FREQ Pull-down Current
Thermal Shutdown Temperature
Thermal Shutdown Hysteresis
V
FB
= 1.27V
V
FB
from 2.6V to 5.5V
ΔI
= 5µA
V
FB
= 1.15V and 1.35V, V
COMP
= 1.1V
V
FB
= 1V, Duty Cycle = 65%
ACT6390
ACT6391
V
SW
= 12V, EN = G
ACT6390
ACT6391
V
SS
= 1.2V
V
SS
= 1.2V, V
EN
= 0V
EN, FREQ
EN, FREQ
V
EN
= 0V or 5V
V
FREQ
= 3V
2.5
1.4
2
ACT6390
ACT6391
1.2
1.8
70
V
FB
= 1.0V, Switching
EN = G
FREQ = G
FREQ = IN
FREQ = G
FREQ = IN
1.22
490
900
80
ACT6390
ACT6391
1
1.4
0.1
700
1300
86
86
1.24
0
0.05
150
11
1.7
2.5
0.2
0.15
0.45
0.3
4.5
110
mA
µA
kHz
kHz
%
V
nA
%/V
µs
µA
A
Ω
µA
V/A
7
220
0.4
µA
Ω
V
V
µA
µA
°C
°C
0
5.5
160
20
1
8.5
Innovative Products.
Active Solutions.
-4-
Copyright © 2007 Active-Semi, Inc.
ACTIVE-SEMI [ ACTIVE-SEMI, INC ]
