ACT81460
Rev 1.0, 18-Dec-2018
BOOST ELECTRICAL CHARACTERISTICS
(VSYS = 3.6V, VBOOST = 12V, TA = 25°C, unless otherwise specified)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VINBOOST, Operating Voltage
Range
3.0
VSYS_OV
V
VBST Programmable Output
Voltage Range
Configurable in 250mV steps, VSET [5:0]
5.0
20.75
V
ISNS Programmable Boost
Current Range
Constant current mode; 0.625mA per step across
entire range
0.625
-2
39.375
2
mA
ISNS Boost Current Accuracy
ISNS Voltage
At default CMI setting.
%
V
Constant Current sense voltage
0.25
DISCC = 1, Disable CC mode and ISNS pin
configured as a constant current sink. 0.625mA per
step across the entire range.
ISNS Programmable LED Current
Sink Range
0.625
39.375
mA
Continuous boost output current, VBST=12V
Continuous boost output current, VBST=20V
39.375
32
mA
mA
IVBST, Maximum Output Current
VBST >= 103% of Nominal Voltage, Regulator
Enabled,
Standby Supply Current, Low
Power Mode Enabled
373
µA
VBST = 12.0V, No Load
Regulator Disabled
Shutdown Current
0.12
VNOM
0.01
0.005
70
µA
%
Output Voltage Accuracy
Line Regulation
VBST =12.0V, IOUT = 0.02A
VBST = 12.0V, VSYS = 3.0V to 5.0V. 20mA (Note 1)
VBST = 12.0V, IBoost 2.0mA to 20mA. (Note 1)
VBST Rising
-3
3
%/V
Load Regulation
%/mA
%VNOM
%VNOM
%VNOM
%VNOM
MHz
Power Good Threshold
Power Good Hysteresis
Overvoltage Fault Threshold
Overvoltage Fault Hysteresis
65
75
VBST Falling
3
VBST Rising
105
110
3
115
VBST Falling
Switching Frequency, PWM Mode VBST = 12.0V, IBoost = 20mA, (Note 1)
1.125
80
Soft-Start Period TSS
10% to 90% of setpoint. (Note 1)
70% of setpoint. (Note 1)
ms
Tstart, Time from EN to POK
80
ms
Innovative PowerTM
ActiveSwitcherTM is a trademark of Active-Semi
www.active-semi.com
Copyright © 2018 Active-Semi, Inc.
15
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