AS1341 austriamicrosystems AG, AS1341 Datasheet - Page 4

• Manufacturer Part Number: AS1341
• Description: Step-Down Converter
• Manufacturer: austriamicrosystems AG

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AS1341
Data Sheet - 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
DC Electrical Characteristics
V
Specifications based on circuit shown in
Table 3. Electrical Characteristics
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DC-DC Switches
Control Inputs
Power-OK
V
IN
Symbol
DROPOUT
I
t
I
t
INDROP
V
OFFMIN
LXPEAK
ONMAX
V
= +12V, SHDNN = V
V
R
V
UVLO
I
OUT
I
FB
IN
FB
LX
IN
Output Voltage (Preset Output)
LX Switch Maximum On-Time
POK Output Leakage Current
LX Switch Minimum Off-Time
Digital Input Leakage Current V
LX Zero-Crossing Threshold
Input Undervoltage Lockout
Output Voltage (Adjustable)
LX Switch Leakage Current
LX Switch On-Resistance
POK Output Voltage Low
Input Shutdown Current
Input Supply Current in
Zero-Crossing Timeout
Feedback Set Voltage
Power-OK Threshold
Input Supply Current
Input Voltage Range
(Adjustable Output)
Thermal Shutdown
FB Threshold Low
OUT Bias Current
Digital Input Level
Load Regulation
Dropout Voltage
FB Bias Current
LX Current Limit
Line Regulation
Parameter
Threshold
IN
Dropout
, T
AMB
= -40 to +85ºC. Typical values are at T
Figure 1 on page
LX does not rise above the threshold
V
SHDNN
IN
ILIMIT = V
V
Falling edge, relative to V
= 20V, LX = GND, T
I
V
IN
OUT
ILIMIT = GND, L = 39µH
IN
, V
SHDNN, ILIMIT = GND
Revision 1.00
ILIMIT = IN, L = 10µH
, V
V
SHDNN, ILIMIT = IN
= 6V to 20V, 200Ω load
IN
POK
= 600mA, ILIMIT = V
ILIMIT
V
10ºC hysteresis
SHDNN = GND
= 20V, LX = GND
IN
V
Conditions
1.
I
IN
V
V
FB = GND
V
POK
V
, V
V
OUT
= 16V, T
V
No load
No load
FB
FB
, I
IN
IN
IN
IN
= 0 to 20V, V
POK
OUT
= 4.5V
falling
= 1.3V
= 1.3V
rising
= 1mA
= 6V
= 5.5V
= 16V
= 0 to 500mA
AMB
AMB
AMB
= 25°C
IN
= +25ºC
OUT
= +25ºC (unless otherwise specified).
IN
= 20V
1.212
1000
-100
4.85
1.25
Min
500
-25
-75
4.5
3.6
3.5
0.2
2.4
50
90
2
8
1400
5.00
1.25
92.5
Typ
250
100
145
700
0.1
0.8
4.0
3.9
3.5
0.4
0.4
0.5
12
45
10
30
1
1.288
1800
+100
Max
5.15
0.95
+25
150
900
+75
V
4.4
4.3
0.6
0.8
0.1
0.8
0.4
0.1
20
18
60
12
95
3
5
1
1
IN
Units
%/V
mV
mV
mA
mV
4 - 16
µA
µA
µA
µA
nA
µA
nA
µA
ºC
µs
µs
µs
%
%
V
V
Ω
V
V
V
V