參數(shù)資料
型號(hào): AS1920-18-T
廠商: AUSTRIAMICROSYSTEMS AG
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: 3x-Input Supervisory Push/Pull
文件頁數(shù): 4/14頁
文件大?。?/td> 278K
代理商: AS1920-18-T
www.austriamicrosystems.com
Revision 1.00
4 - 14
AS1920/AS1922
Datasheet - Electrical Characteristics
6 Electrical Characteristics
V
CC18
= 1.8V, V
CC3
= 3V, V
CCA
= V
CC3
, T
AMB
= -40 to +85
oC
(unless otherwise specified).
Table 4. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
RT18
Reset Threshold V
CC18
1.653
1.683
1.713
V
V
RT3
Reset Threshold V
CC3
2.763
2.805
2.847
V
V
RTA
Reset Threshold V
CCA
0.982
1.00
1.018
V
V
CC3
, V
CC18
Operating Voltage
RESETN in Correct Logic State
1
3.3
V
I
VCC18
V
CC18
Supply Current
V
CC18
< V
CC3
, V
CC18
= 1.8V
0.7
2
μA
I
VCC3
V
CC3
Supply Current
V
CC18
< V
CC3
, V
CC3
= 3V
6.2
15
μA
I
VCCA
1
1. Guaranteed by design.
2. Measured from the time (t
1
) when the input passes through the input threshold voltage (V
RT
X
) to the time (t
2
)
when RESETN passes through 1.5V.
V
CCA
Input Current
V
CCA
= 1V
-15
0
15
nA
I
OUT
Open-Drain RESETN
Output Current
Reset Not Asserted, Forced to 0V
2
4
13
μA
I
LEAK
Open-Drain RESETN Output
Leakage Current
Reset Not Asserted, RESETN
Forced to 5.5V, T
AMB
= 25oC
-0.1
0.1
μA
t
RST
Reset Pulse Width
RESETN Low, T
AMB
= 25oC
2
140
200
280
ms
t
UV
V
CC
Undervoltage
Detect to RESETN
V
CC18
, V
CC3
, or V
CCA
<
Reset Threshold by > 1%
2
T
AMB
= 25oC
130
μs
V
OL
Output Voltage Low, RESETN
I
SINK
= 2.5mA, V
CC3
= 3V,
V
CC18
= 0V
0.15
0.4
V
I
SINK
= 100μA, V
CC3
= 1V,
V
CC18
= 0V
0.05
0.3
I
SINK
= 100μA, V
CC3
= 0V,
V
CC18
= 1V
0.05
0.3
I
SINK
= 100μA, V
CC3
= 1V,
V
CC18
= 1V
0.05
0.3
V
OH
Output Voltage High, RESETN
I
SOURCE
= 1μA (AS1922-
xx
)
V
CC3
-
1
V
CC3
-
0.65
V
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