Datasheet

 2003 Microchip Technology Inc. DS21667D-page 9
MCP2551
2.2 DC Characteristics
DC Specifications
Electrical Characteristics:
Industrial (I): T
AMB
= -40°C to +85°C V
DD
= 4.5V to 5.5V
Extended (E):T
AMB
= -40°C to +125°C V
DD
= 4.5V to 5.5V
Param
No.
Sym Characteristic Min Max Units Conditions
Supply
D1 I
DD
Supply Current — 75 mA Dominant; V
TXD
= 0.8V; V
DD
D2 — 10 mA Recessive; V
TXD
= +2V;
R
S
= 47 kΩ
D3 — 365 µA -40°C ≤ T
AMB
≤ +85°C,
Standby; (Note 2)
—465µA-40°C ≤ T
AMB
≤ +125°C,
Standby; (Note 2)
D4 V
PORH
High-level of the power-on reset
comparator
3.8 4.3 V CANH, CANL outputs are
active when V
DD
> V
PORH
D5 V
PORL
Low-level of the power-on reset
comparator
3.4 4.0 V CANH, CANL outputs are not
active when V
DD
< V
PORL
D6 V
PORD
Hysteresis of power-on reset
comparator
0.3 0.8 V Note 1
Bus Line (CANH; CANL) Transmitter
D7 V
CANH
(r);
V
CANL
(r)
CANH, CANL Recessive bus
voltage
2.0 3.0 V V
TXD
= V
DD
; no load.
D8 I
O
(
CANH
)(reces)
I
O
(
CANL
)(reces)
Recessive output current -2 +2 mA -2V < V(
CAHL
,
CANH
) < +7V,
0V <V
DD
< 5.5V
D9 -10 +10 mA -5V < V(
CANL
,
CANH
) < +40V,
0V <V
DD
< 5.5V
D10 V
O
(
CANH
) CANH dominant output voltage 2.75 4.5 V V
TXD
= 0.8V
D11 V
O
(
CANL
) CANL dominant output voltage 0.5 2.25 V V
TXD
= 0.8V
D12 V
DIFF
(r)(o) Recessive differential output
voltage
-500 +50 mV V
TXD
= 2V; no load
D13 V
DIFF
(d)(o) Dominant differential output
voltage
1.5 3.0 V V
TXD
= 0.8V; V
DD
= 5V
40Ω < R
L
< 60Ω (Note 2)
D14 I
O
(SC)(
CANH
) CANH short-circuit output current — -200 mA V
CANH
= -5V
D15 — -100
(typical)
mA V
CANH
= -40V, +40V. (Note 1)
D16 I
O
(SC)(
CANL
)l CANL short-circuit output current — 200 mA V
CANL
= -40V, +40V. (Note 1)
Bus Line (CANH; CANL) Receiver: [TXD = 2V; pins 6 and 7 externally driven]
D17 V
DIFF
(r)(i) Recessive differential input
voltage
-1.0 +0.5 V -2V < V(
CANL
,
CANH
) < +7V
(Note 3)
-1.0 +0.4 V -12V < V(
CANL
,
CANH
) < +12V
(Note 3)
D18 V
DIFF
(d)(i) Dominant differential input
voltage
0.9 5.0 V -2V < V(
CANL
,
CANH
) < +7V
(Note 3)
1.0 5.0 V -12V < V(
CANL
,
CANH
) < +12V
(Note 3)
D19 V
DIFF
(h)(i) Differential input hysteresis 100 200 mV see Figure 2-3. (Note 1)
D20 R
IN
CANH, CANL common-mode
input resistance
550kΩ
D21 R
IN
(d) Deviation between CANH and
CANL common-mode input resis-
tance
-3 +3 % V
CANH
= V
CANL
Note 1: This parameter is periodically sampled and not 100% tested.
2: I
TXD
= I
RXD
= I
VREF
= 0 mA; 0V < V
CANL
< V
DD
; 0V < V
CANH
< V
DD
; V
RS
= V
DD
.
3: This is valid for the receiver in all modes; High-speed, Slope-control and Standby.