SN65HVD251 Datasheet, PDF (11/19 Pages) Texas Instruments – CAN TRANSCEIVER

www.ti.com
SN65HVD251
SLLS545B – NOVEMBER 2002 – REVISED SEPTEMBER 2003
DEVICE INFORMATION
5V
R2+1%
R1+1%
CANH
+
R
V_ID
CANL
–
Vac
R1+1%
V_I
R2+1%
V_ID
500 mV
900 mV
R1
50 W
50 W
R2
450 W
227 W
12 V
V_I
–7 V
A. All input pulses are supplied by a generator having the following characteristics: f < 1.5 MHz, T_A = 25^oC, V_CC = 5.0 V.
Figure 13. Common-Mode Input Voltage Rejection Test
FUNCTION TABLES
INPUTS
D
L
H
Open
X
Voltage at R_s, V_Rs
V_Rs < 1.2 V
V_Rs < 1.2 V
X
V_Rs > 0.75 V_CC
Table 2. DRIVER
CANH
H
Z
Z
Z
OUTPUTS
CANL
L
Z
Z
Z
Table 3. RECEIVER
DIFFERENTIAL INPUTS [V_ID = V(CANH) - V(CANL)]
V_ID≥ 0.9 V
0.5V < V_ID < 0.9 V
V_ID ≤ 0.5 V
Open
(1) H = high level; L = low level; X = irrelevant; ? = indeterminate; Z = high impedance
BUS STATE
Dominant
Recessive
Recessive
Recessive
OUTPUT R⁽¹⁾
L
?
H
H
11