L5951(2001) Просмотр технического описания (PDF) - STMicroelectronics
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L5951
(Rev.:2001)
(Rev.:2001)
STMicroelectronics
L5951 Datasheet PDF : 13 Pages
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L5951
ELECTRICAL CHARACTERISTICS (continued)
(Tamb = 25°C, VBAT = 14.4V unless otherwise specified. Standard Loads: IREG1 = 0.5mA, IREG2 = 0.5mA, IREG3 = 5mA)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
LOADDio Load Output (Unpowered)
VBAT = 0V, ILOAD = 6mA
0.7
V
IBUSloss BUS & LOADCurrent during loss
ILOADloss of assembly VBAT or GND
IVBAT = 0mA,
BUS = -18 to 9VDC
LOAD = -18 to 0 VDC
11
µA
39
µA
TXVIL TX Input Voltage
TXVIH
Verify BUS < 3.875VDC
Verify BUS > 3.875VDC
2
0.8
V
V
ITXVIL TX Input Current
ITXVIH
TX = 5VDC
TX = 0VDC
110
µA
0
µA
4Trip1
4Trip2
I4Xvih
I4Xvil
4X Input Trip Point Voltages
4X Input Current
Normal Mode
4X Mode
4X = 5 VDC
4X = 0 VDC
1.4
V
0
µA
0
µA
LTrip1
LTrip2
LOOP Input Trip Point Voltages
Normal Mode
Loopback Mode
0.8
V
2
V
ILvih LOOP Input Current
ILvil
LOOP = 5VDC
LOOP = 0VDC
0
µA
VRXhigh RX Output Voltage, High
BUS = 7V, IRX = -200µA
4.85
V
VRXlow RX Output Voltage, Low
BUS = 0V, IRX = 1.6mA
0.2
V
IRX RX Output Current
RX = high (Short circuit protection
5
mA
limits)
Sleep* Input Voltage
Sleep* VIH
Sleep*VIL
ISleepvih Sleep* Input Current
ISleepvil
TX = 5VDC
Verify BUS > 3.725
Verify BUS < 4.025
Sleep* = 5VDC
Sleep* = 0VDC
2
V
0.8
V
0.2
µA
0
µA
* Denotes active low for Sleep and Reset.
AC Characteristics for Class 2 Transceiver
Standard Loads: IREG1 = 0.5mA, IREG2 = 0.5mA, IREG3 = 5mA
BUSLTOH BUS Voltage Rise Times
TX = 7.812Hz square wave
See Figure 1
Min and Max Loaded BUS
15
µs
BUSHTOL BUS Voltage Fall Times
TX = 7.812Hz square wave
See Figure 1
Min and Max Loaded BUS
14
µs
tWbus BUS Pulse Width Distortion
TX = 7.812Hz square wave
See Figure 2
Load BUS with 3.300pF and
1.38kΩ
Meas. @ 1.5V levels
Meas. @ 6.25V levels
77
µs
48
µs
8/13
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