AS1341-BTDT-1K データシートの表示（PDF） - austriamicrosystems AG
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AS1341-BTDT-1K Datasheet PDF : 18 Pages
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AS1341
Datasheet - Electrical Characteristics
6 Electrical Characteristics
VIN = +12V, SHDNN = VIN, Typical values are at TAMB = +25ºC (unless otherwise specified). Specifications based on circuit shown in Figure 1
on page 1.
Table 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min Typ Max Units
TAMB
VIN
Operating Temperature Range
Input Voltage Range
-45
85
°C
4.5
20
V
VOUT
Output Voltage (Preset Output)
Output Voltage (Adjustable)
FB = GND
4.85 5.00 5.15
V
1.25
VIN
VDROPOUT
Dropout Voltage
Line Regulation
IOUT = 600mA, ILIMIT = VIN
VIN = 6V to 20V, 200Ω load
250
mV
0.1
%/V
Load Regulation
ILIMIT = VIN, IOUT = 0 to 500mA
1
%
VFB
Feedback Set Voltage (Adjustable
Output)
1.212 1.25 1.288 V
IIN
IINDROP
Input Supply Current
Input Supply Current in Dropout
Input Shutdown Current
No load
No load
SHDNN = GND
12
18
µA
45
60
µA
0.8
3
µA
VUVLO
Input Undervoltage Lockout
Threshold
VIN rising
VIN falling
3.6
4.0
4.4
V
3.5
3.9
4.3
OUT Bias Current
IFB
FB Bias Current
VOUT = 5.5V
VFB = 1.3V
2
3.5
5
µA
-25
+25 nA
FB Threshold Low
50
100
150 mV
DC-DC Switches
Thermal Shutdown
10ºC hysteresis
145
ºC
tOFFMIN
LX Switch Minimum Off-Time
0.2
0.4
0.6
µs
tONMAX
LX Switch Maximum On-Time
VFB = 1.3V
8
10
12
µs
RLX
LX Switch On-Resistance
VIN = 6V
VIN = 4.5V
0.4
Ω
0.5
ILXPEAK
LX Current Limit
ILIMIT = GND, L = 39µH
ILIMIT = IN, L = 10µH
500
700
900
mA
1000 1400 1800
LX Zero-Crossing Threshold
-75
+75 mV
Zero-Crossing Timeout
LX does not rise above the threshold
30
µs
Control Inputs
LX Switch Leakage Current
VIN = 20V, LX = GND, TAMB = +25ºC
VIN = 20V, LX = GND
0.1
µA
1
Digital Input Level
SHDNN, ILIMIT = GND
SHDNN, ILIMIT = IN
2.4
0.8
V
Power-OK
Digital Input Leakage Current
VSHDNN, VILIMIT = 0 to 20V, VIN = 20V
-100
+100 nA
Power-OK Threshold
Falling edge, relative to VOUT
90
92.5
95
%
POK Output Voltage Low
IPOK = 1mA
0.4
V
POK Output Leakage Current
VIN, VPOK = 16V, TAMB = 25°C
VIN, VPOK = 16V
0.1
µA
1
Note: All limits are guaranteed. The parameters with min and max values are guaranteed with production tests or SQC (Statistical Quality
Control) methods.
www.ams.com/DC-DC_Step-Up/AS1341
Revision 1.09
4 - 18
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