Document Number: 70788
S11-0975-Rev. F, 16-May-11
www.vishay.com
3
Vishay Siliconix
Si9243A
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
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.
SPECIFICATIONS
Parameter Symbol
Test Conditions Unless Specified
VDD = 4.5 V to 5.5 V
VBAT = 6 V to 36 V
Limits
- 40 to 125 °C Unit
Temp.a Min.bTyp.cMax.b
Transmitter and Logic Levels
TX Input Low Voltage VILT Full 1.5 V
TX Input High Voltage VIHT Full 3.5
TX Input CapacitancedCINT Full 10 pF
TX Input Pull-up Resistance RTX VDD = 5.5 V, TX = 1.5 V, 3.5 V Full 10 20 40 k
K Transmit
K Output Low Voltage VOLK
RL = 510 ± 5 %, VBAT = 6 to 18 Full 0.2 VBAT
V
RL = 1 k ± 5 %, VBAT = 16 to 36 Full 0.2 VBAT
RL = 510 ± 5 %, VBAT = 4.5 Full 1.2
K Output High Voltage VOHK
RL = 510 ± 5 %, VBAT = 4.5 to 18 Full 0.95 VBAT
RL = 1 k ± 5 %, VBAT = 16 to 36 Full 0.95 VBAT
K Rise, Fall Times tr, tf See Test Circuit Full 9.6 µs
K Output Sink Resistance Rsi TX = 0 V Full 110
K Output CapacitancedCOFull 20 pF
Receiver
L and K Input High Voltage VIH Full 0.65 VBAT V
L and K Input Hysteresisc, d VHYS Full 0.05 VBAT
L and K Input Currents IIH
TX = 4
VIH= VBAT Full 20 µA
RXL and RXK Output Low Voltage VOLR
VILK, VILL = 0.35 VBAT
IOLR = 1 mA Full 0.4 V
RXL and RXK Pull-up Resistance RRX Full 5 20 k
RXK Turn On Delay td(on)
RL = 510 ± 5 %, VBAT = 6 V to 18 V
CL = 10 nF, See Test Circuit Full 3 10
µs
RL = 1 k ± 5 %, VBAT = 16 V to 36 V
CL = 4.7 nF, See Test Circuit Full 3 10
RXK Turn Off Delay td(off)
RL = 510 ± 5 %, VBAT = 6 V to 18 V
CL = 10 nF, See Test Circuit Full 3 10
RL = 1 k ± 5 %, VBAT = 16 V to 36 V
CL = 4.7 nF, See Test Circuit Full 3 10
Supplies
Bat Supply Current On IBAT(on) TX = 0 V, VBAT 16 V Full 1.2 3 mA
Bat Supply Current Off IBAT(off)
VIHT VTX, VIHK VK, VIHL VL
VBAT 12 V Full 120 220 µA
Bat Supply Current Standby IBAT(SB) VDD 0.5 V, VBAT 12 V Full < 1 10
Logic Supply Current On IDD(on) VDD 5.5 V, TX = 0 V Full 1.4 2.3 mA
Logic Supply Current Off IDD(off)
VIHT VTX, VIHK VK, VIHL VL
VBAT 12 V Full 10 µA
Miscellaneous
TX Transmit Baud Rate BRTRL = 510 , CL = 10 nF Full 10.4 kBaud
RXL and RXK Receive Baud RatecBRR6 V < VBAT < 16 V, CRX = 20 pF Full 200
Transmission Frequency fK-RXK 6 V < VBAT < 16 V, RK = 510 , CK 1.3 nF Full 50 200 kHz
TX Minimum Pulse Widthd, e tTX Full 1 µs
Over Temperature ShutdowndTSHUT Temperature Rising 160 180 °C
Temperature Shutdown HysteresiscTHYST 30