AMIS-42700 Datasheet, PDF (8/14 Pages) AMI SEMICONDUCTOR – Dual High-Speed CAN Transceiver

AMIS−42700
Table 5. Thermal Characteristics
Symbol
Parameter
R_{th(vj−a)}
R_th(vj−s)
Thermal resistance from junction to ambient in SO20 package
Thermal resistance from junction to substrate of bare die
Conditions
Value
Unit
In free air
85
K/W
In free air
45
K/W
Table 6. DC and Timing Characteristics (V_CC = 4.75 to 5.25 V; T_junc = −40 to +150°C; R_LT = 60 W unless specified otherwise.)
Symbol
Parameter
Conditions
Min.
Typ.
Max. Unit
SUPPLY (pin V_CC)
I_CC
Supply current, no loads on digital
outputs, both busses enabled
Dominant transmitted
Recessive transmitted
45
137.5 mA
19.5
PORL_VCC Power−on−reset level on V_CC
DIGITAL INPUTS (Tx0, Text, EN1B, EN2B)
2.2
4.7
V
V_IH
High−level input voltage
V_IL
Low−level input voltage
I_IH
High−level input current
I_IL
Low−level input current
C_i
Input capacitance
DIGITAL OUTPUTS (pin Rx0, Rint)
V_IN = V_CC
V_IN = 0 V
Not tested
0.7 x V_CC
−
−0.3
−
V_CC
V
0.3 x
V
V_CC
−5
0
+5
mA
−75
−200
−350
mA
−
5
10
pF
I_oh
High−level output current
I_ol
Low−level output current
REFERENCE VOLTAGE OUTPUT (pin V_REF1)
V_REF
Reference output voltage
V_{REF_CM}
Reference output voltage for full
common mode range
BUS LINES (pins CANH1/2 and CANL1/2)
V_o = 0.7 x V_CC
V_o = 0.3 x V_CC
−50 mA < I_VREF < +50 mA
−35 V <V_CANHx < +35 V;
−35 V <V_CANLx < +35 V
−5
−10
−15
mA
5
10
15
mA
0.45 x
0.50 x 0.55 x
V
V_CC
V_CC
V_CC
0.40 x
0.50 x 0.60 x
V
V_CC
V_CC
V_CC
V_o(reces)
(CANHx)
V_o(reces)
(CANLx)
I_o(reces)
(CANHx)
I_o(reces)
(CANLx)
V_o(dom)
(CANHx)
V_o(dom)
(CANLx)
V_{o(dif) (bus)}
Recessive bus voltage at pin
CANH1/2
Recessive bus voltage at pin
CANL1/2
Recessive output current at pin
CANH1/2
Recessive output current at pin
CANL1/2
Dominant output voltage at pin
CANH1/2
Dominant output voltage at pin
CANL1/2
Differential bus output voltage
(V_CANHx − V_CANLx)
V_Tx0 = V_CC; no load
V_Tx0 = V_CC; no load
−35 V < V_CANHx < +35 V;
0 V < V_CC < 5.25 V
−35 V < V_CANLx < +35 V;
0 V < V_CC < 5.25 V
V_Tx0 = 0 V
V_Tx0 = 0 V
V_Tx0 = 0 V; dominant;
42.5 W < R_LT < 60 W
V_TxD = V_CC;
recessive; no load
2.0
2.0
−2.5
−2.5
3.0
0. 5
1.5
−120
2.5
3.0
V
2.5
3.0
V
−
+2.5
mA
−
+2.5
mA
3.6
4.25
V
1.4
1.75
V
2.25
3.0
V
0
+50
mV
I_o(sc)
(CANHx)
Short circuit output current at pin
CANH1/2
V_CANHx = 0 V;
V_Tx0 = 0 V
−45
−70
−120
mA
I_{o(sc) (CANLx)} Short circuit output current at pin
CANL1/2
V_CANLx = 36 V;
V_Tx0 = 0 V (Note 8)
45
70
120
mA
8. Guaranteed by design for VBAT = 36 V; measured in production for VBAT = 7 V to avoid short−2−VBAT detection
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