Datasheet
SN65HVD30 – SN65HVD35
www.ti.com
SLLS665I –SEPTEMBER 2005–REVISED APRIL 2010
DRIVER ELECTRICAL CHARACTERISTICS
over recommended operating conditions unless otherwise noted
PARAMETER TEST CONDITIONS MIN TYP
(1)
MAX UNIT
V
I(K)
Input clamp voltage I
I
= –18 mA –1.5 V
I
O
= 0 2.5 V
CC
R
L
= 54 Ω, See Figure 1 (RS-485) 1.5 2
|V
OD(SS)
| Steady-state differential output voltage V
R
L
= 100 Ω, See Figure 1 ,
(2)
(RS-422) 2 2.3
V
test
= –7 V to 12 V, See Figure 2 1.5
Change in magnitude of steady-state
Δ|V
OD(SS)
| differential output voltage between R
L
= 54 Ω, See Figure 1 and Figure 2 –0.2 0.2 V
states
Differential Output Voltage overshoot R
L
= 54 Ω, C
L
= 50 pF, See Figure 5 and
V
OD(RING)
10%
(3)
V
and undershoot Figure 3
HVD30, HVD33 0.5
Peak-to-peak
V
OC(PP)
common-mode See Figure 4 V
HVD31, HVD34,
0.25
output voltage
HVD32, HVD35
Steady-state common-mode output
V
OC(SS)
1.6 2.3
voltage
See Figure 4 V
Change in steady-state common-mode
ΔV
OC(SS)
–0.05 0.05
output voltage
V
CC
= 0 V, V
Z
or V
Y
= 12 V,
90
Other input at 0 V
HVD30, HVD31,
HVD32
V
CC
= 0 V, V
Z
or V
Y
= –7 V,
–10
Other input at 0 V
I
Z(Z)
or High-impedance
mA
I
Y(Z)
state output current
V
CC
= 3 V or 0 V, DE = 0 V
90
V
Z
or V
Y
= 12 V
HVD33, HVD34, Other input
HVD35 at 0 V
V
CC
= 3 V or 0 V, DE = 0 V
–10
V
Z
or V
Y
= –7 V
V
Z
or V
Y
= –7 V –250 250
I
Z(S)
or Other input
Short Circuit output current
(4)
mA
I
Y(S)
at 0 V
V
Z
or V
Y
= 12 V –250 250
I
I
Input current D, DE 0 100 mA
C
(OD)
Differential output capacitance V
OD
= 0.4 sin (4E6pt) + 0.5 V, DE at 0 V 16 pF
(1) All typical values are at 25°C and with a 3.3-V supply.
(2) V
CC
is 3.3 Vdc ± 5%
(3) 10% of the peak-to-peak differential output voltage swing, per TIA/EIA-485
(4) Under some conditions of short-circuit to negative voltages, output currents exceeding the ANSI TIA/EIA-485-A maximum current of 250
mA may occur. Continuous exposure may affect device reliability. This applies to the HVD30,HVD31,HVD33, and HVD34.
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