Document Number: 70787
S11-0975-Rev. F, 16-May-11
www.vishay.com
3
Vishay Siliconix
Si9241A
This document is subject to change without notice.
THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
End of Life. Last Available Purchase Date is 31-Dec-2014
Notes:
a. Room = 25 °C, Cold and Hot = as determined by the operating temperature suffix.
b. The algebraic convention whereby the most negative value is a minimum and the most positive a maximum, is used in this data sheet.
c. Typical values are for DESIGN AID ONLY, not guaranteed nor subject to production testing.
d. Guaranteed by design, not subject to production test.
e. Minimum pulse width to reset a fault condition.
f. High referes to Logic High and Low refers to Logic Low.
SPECIFICATIONS
Parameter Symbol
Test Conditions Unless Specified
V
DD
= 4.5 V to 5.5 V
V
BAT
= 6 V to 36 V
Limits
- 40 to 125 °C
Unit
Temp.
a
Min.
b
Typ.
c
Max.
b
Transmitter and Logic Levels
CS
, TX Input Low Voltage
V
ILT
Full 1.5
V
CS
, TX Input High Voltage
V
IHT
Full 3.5
TX Input Capacitance
d
C
INT
Full 10 pF
CS
, TX Input Pull-up Resistance
R
TX
, V
DD
= 5.5 V, TX or CS = 1.5 V, 3.5 V
Full 10 20 40 k
K Transmit
K Output Low Voltage
V
OLK
R
L
= 510 ± 5 %, V
BAT
= 6 to 18
Full
0.2 V
BAT
V
R
L
= 1 k ± 5 %, V
BAT
= 16 to 36
Full
0.2 V
BAT
R
L
= 510 ± 5 %, V
BAT
= 4.5
Full 1.2
K Output High Voltage
V
OHK
R
L
= 510 ± 5 %, V
BAT
= 4.5 to 18
Full
0.95 V
BAT
R
L
= 1 k ± 5 %, V
BAT
= 16 to 36
Full
0.95 V
BAT
K Rise, Fall Times
t
r
,
tf
See Test Circuit Full 9.6 µs
K Output Sink Resistance Rsi
CS
= 0 V, TX = 0 V
Full 110
K Output Capacitance
d
C
O
Full 20 pF
Receiver
K Input Low Voltage
V
ILK
Full
0.35 V
BAT
VK Input High Voltage
V
IHK
Full
0.65 V
BAT
K Input Hysteresis
c, d
V
HYS
Full
0.05 V
BAT
K Input Currents
I
IHK
CS = 4
V
IHK
= V
BAT
Full 20 µA
RX Output Low Voltage
V
OLR
V
ILK
= 0.35 V
BAT
I
OLR
= 1 mA
Full 0.4 V
RX Pull-up Resistance R
RX
Full 5 20 k
RX Turn On Delay
t
d(on)
R
L
= 510 ± 5 %, V
BAT
= 6 V to 18 V
C
L
= 10 nF, See Test Circuit
Full 3 10
µs
R
L
= 1 k ± 5 %, V
BAT
= 16 V to 36 V
C
L
= 4.7 nF, See Test Circuit
Full 3 10
RX Turn Off Delay
t
d(off)
R
L
= 510 ± 5 %, V
BAT
= 6 V to 18 V
C
L
= 10 nF, See Test Circuit
Full 3 10
R
L
= 1 k ± 5 %, V
BAT
= 16 V to 36 V
C
L
= 4.7 nF, See Test Circuit
Full 3 10
Supplies
Bat Supply Current On
I
BAT(on)
CS = TX = 0 V, V
BAT
16 V
Full 1.2 3 mA
Bat Supply Current Off
I
BAT(off)
CS = High, V
BAT
12 V, TX = High
f
Full 120 220
µA
Bat Supply Current Standby
I
BAT(SB)
V
DD
0.5 V, V
BAT
12 V
Full < 1 10
Logic Supply Current On
I
DD(on)
V
DD
5.5 V, TX = 0 V
Full 1.4 2.3 mA
Logic Supply Current Off
I
DD(off)
CS = High, V
BAT
12 V, TX = High
f
Full 10 µA
Miscellaneous
TX Transmit Baud Rate
BR
T
R
L
= 510 , C
L
= 10 nF
Full 10.4
kBaud
RX Receive Baud Rate
c
BR
R
6 V < V
BAT
< 16 V, C
RX
= 20 pF
Full 200
Transmission Frequency
f
K-RXK
6 V < V
BAT
< 16 V, R
K
= 510 , C
K
1.3 nF
Full 50 200 kHz
Fault Output Low Voltage
V
OLF
CS = TX = 0, K = V
BAT
, I
OLF
= 1 mA
Full 0.4 V
CS
Minimum Pulse Width
d, e
t
cs
Full 1 µs
Over Temperature Shutdown
d
T
SHUT
Temperature Rising 160 180
°C
Temperature Shutdown Hysteresis
c
T
HYST
30
