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AS1302 数据表(PDF) 4 Page - ams AG

部件名 AS1302
功能描述  5V/30mA Adaptive Inductorless Boost Converter
PDF  18 Pages
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制造商  AMSCO [ams AG]
网页  http://www.ams.com
标志 AMSCO - ams AG

AS1302 数据表(HTML) 4 Page - ams AG

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www.austriamicrosystems.com
Revision 1.02
4 - 18
AS1302
Datasheet - E l e c t r i c a l C h a r a c t e r i s t i c s
6 Electrical Characteristics
VBATT = 2.9V to 5.15V, VOUT = 5V, COUT = CBAT = 2.2µF, CFLY1 = CFLY2 =220nF, TAMB = -40 to +85ºC. Typical values
are at TAMB = +25ºC and VIN = 3.3V, unless otherwise specified.
Table 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VBATT(on) Undervoltage Lockout
Rising VBATT
2.8
2.9
V
VBATT(off)
Undervoltage Lockout
Falling VBATT
2.4
2.5
2.8
V
VBATT
Battery Supply Voltage
2.9
5.15
V
VOUT
Output Voltage Accurracy
IOUT = 0mA, 15mA
4.85
5.0
5.15
V
ΔVO/ΔIO11 Load Regulation in 1:1 Mode
VBATT = 5.4V, IOUT = 10~30mA
2
mV/mA
ΔVO/ΔIO23 Load Regulation in 2:3 Mode
VBATT = 4.3V, IOUT = 10~30mA
3
ΔVO/ΔIO12 Load Regulation in 1:2 Mode
VBATT = 3.3V, IOUT = 10~30mA
3
Vtgr11/23
Mode Switching Voltage
1:1 / 2:3 mode, falling VBATT
5.1
V
Vtgr23/12
2:3 / 1:2 mode, falling VBATT
3.6
Mode switching voltage hysteresis
150
mV
IOUT
Load Current
1
1. The device is tested in a proprietary test mode.
30
mA
Vripple
Output Voltage Ripple
VBATT = 3.6V, IOUT = 30mA
22
mVPP
VBATT = 3.6V, IOUT = 2mA
40
mVPP
Iinr
Inrush Current
2
2. The inrush current is limited by the internal soft-start circuitry.
150
mA
Ishort
Short-Circuit Current
150
mA
η12
Efficiency in Switching Mode
1:2 mode, VBATT = 2.9V,
IOUT = 30mA
85
%
η23
2:3 mode, VBATT = 3.8V,
IOUT = 30mA
85
%
IOP12
Operating Quiescent Current
VBATT = 3.4V (1:2 mode without load)
240
300
µA
IOP23
VBATT = 4.5V (2:3 mode without load)
170
230
IOP11
VBATT = 5.3V (1:1 mode without load)
100
150
IOFF
Shutdown Current
EN = 0V
0.01
1
µA
Input Levels
VIH
Input High Level
pin EN
1.1
5.5
V
VIL
Input Low Level
0.0
0.4
V
Timing
fOSC
Oscillator Frequency
VBATT = 3.6V, IOUT = 30mA
0.9
1.2
1.5
MHz
VBATT = 3.6V, IOUT = 2mA
40
49
65
kHz
tSTART
Startup Time
0.5
1
ms
Thermal Regulation
TOFF
Temperature Shutdown
Temperature rising
145
ºC
Hysteresis
10



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