L5951
Electrical specifications
Table 6. Electrical characteristics (continued)
Symbol
Parameter
Test Condition
Min. Typ. Max. Unit
I4Xvih
I4Xvil
4X input current
4X = 5 VDC
4X = 0 VDC
0
A
0
A
LTrip1
LTrip2
LOOP input trip point voltages
Normal Mode
Loopback Mode
2
0.8
V
V
ILvih
ILvil
LOOP input current
LOOP = 5VDC
LOOP = 0VDC
0
A
VRXhigh RX output voltage, high
BUS = 7V, IRX = -200A
4.85
V
VRXlow
t(s) IRX
RX output voltage, low
RX output current
BUS = 0V, IRX = 1.6mA
RX = high (Short circuit
protection limits)
0.2
V
5
mA
uc VIH
rod VIL
P ISleepvih
ISleepvil
Sleep(1) input voltage
Sleep(1) input current
TX = 5VDC
Verify BUS > 3.725
Verify BUS < 4.025
Sleep* = 5VDC
Sleep* = 0VDC
2
V
0.8
V
0.2
A
0
A
lete AC characteristics for class 2 transceiver (Standard loads: IREG1 = 0.5mA, IREG2 = 0.5mA, IREG3 = 5mA)
bso BUSLTOH BUS voltage rise times
t(s) - O BUSHTOL BUS voltage fall times
Produc tWbus BUS pulse width distortion
solete V1 Spectral content limit
b (Measure spectral peak from
O V2 0.53MHz to 1.6MHz)
TX = 7.812Hz square wave
See Figure 1
Min and max loaded BUS
TX = 7.812Hz square wave
See Figure 1
Min and max loaded BUS
TX = 7.812Hz square wave
See Figure 2
Load BUS with 3.300pF and
1.38k
Measure @ 1.5V levels
Measure @ 6.25V levels
VBAT = 9V to 16V, no ground
offset, 0.53 f 1MHz.
VBAT = 9V to 16V, no ground
offset, 1 f 1.67MHz.
15
s
14
s
77
s
48
s
100
V
80
V
BUSDLY Propagation delay
Measure delay between TX trip
point and RX trip point
16
s
TX4XDLY
TXNormDL
Y
TX to BUS delay
Measure from 2.5V on TX to
3.875V on BUS
4X mode
Normal mode
3.5
s
14.5
s
DocID7510 Rev 2
11/18
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