Archived by Freescale Semiconductor, Inc., 2008
Order Number: MC33388/D
Freescale Semiconductor, Inc.
Rev. 2.3, 2001
Semiconductor Technical Data
MC33388
AUTOMOTIVE FAULT TOLERANT
CAN PHYSICAL LAYER
The MC33388 is a CAN physical interface device, dedicated to
automotive body electronic multiplexing applications. It operates in
differential mode, allowing ground shifts up to 1.5V, reducing RFI
disturbances. It offers very low standby current in sleep and standby
mode operation and supports communication speeds up to 125kBauds.
It is fully protected against harsh automotive environments and the
driver is able to detect fault conditions and automatically switches into
appropriate default mode. Under fault condition, it continuously monitors
bus failures in order to switch back to normal bus operation as soon as
faults disappeared.
SEMICONDUCTOR
TECHNICAL DATA
Archive Information
Archive Information
Fault Tolerant CAN Interface
D SUFFIX
PLASTIC PACKAGE
CASE 751A-03
SO-14
• Very low sleep/standby current (15uA typical)
• Baud rate from 10kBaud up to 125kBauds
• Automatic switching to single wire mode in case of bus failures and
return to differential mode if bus failures disappear
• Supports one wire transmission modes with ground offset up to 1.5V
• Internal bus driver slope control function to minimize RFI
• Bus line short-circuit protected to battery, VDD and ground
• Bus line protected against automotive transients
• Thermal protection of bus line drivers
• Supports unshielded twisted pair bus
• An unpowered node does not disturb the bus lines
• Wake-up capability triggered from bus message and wake-up input pin
• Wake up pin with dual edges sensitivity
• Battery fail flag reported on NERR output
• Ambient temperature range from -40°C to 125°C
PIN CONNECTIONS
INH
1
14
BAT
TX
2
13
GND
RX
3
12
CANL
NERR
4
11
CANH
STB
5
10
VDD
EN
6
9
RTL
WAKE
7
8
RTH
(Top View)
ORDERING INFORMATION
Device
MC33388D
Operating
Temperature Range
TA = -40 to 125°C
Package
SO-14
Simplified Block Diagram
VDD
BAT
WAKE
EN
STB
INH
WAKE-UP LOGIC
MODE CONTROL
12.5k
VDD
PROTECTION
S5
S2
S3
RTL
SLOPE
CONTROL
&
DRIVER
TX
CANH
CANL
RTH
S4
S1
NERR
FAILURE DETECTION
RECEIVER
RX
MUX
GND
© Motorola, Inc., 2001. All rights reserved.
TM
Archived by Freescale Semiconductor, Inc., 2008
Ratings
Symbol
Min
DC Supply Voltage Pin 10
VDD
DC Voltage On Pins 2, 3, 4, 5, 6 and 7
DC Voltage On Pins 11, 12
Archive Information
Transient Voltage At Pins 11, 12
0 < VDD < 5.5V; VBAT≥ 0; T < 500ms
Transient Voltage On Pins 11, 12 (Coupled Through 1nF
Capacitor)
Typ
Max
Unit
-0.3
6
V
VDD
-0.3
VDD + 0.3
V
VBUS
-20
+27
V
VCANH/VCANL
-40
40
V
Vtr
-150
100
V
VBAT +0.3
V
DC Voltage On Pin 7
Vwake
Current In Pin 7
I wake
-15
3
mA
Vinh
-0.3
VBAT + 0.3
V
DC Voltage On Pins 8, 9
Vrtl, Vrth
-0.3
40
V
DC Voltage On Pins 14
VBAT
-0.3
27
V
Voltage On Pins 14 (Load Dump, 500ms)
VBAT
40
V
ESD Voltage On Any Pins (HBM.100pF ; 1.5kΩ)
VESD
-3.0
3.0
kV
ESD Voltage On Any Pins (MM.200pF ; 0Ω)
VESD
-200
200
V
Junction Temperature
Tj
-40
150
°C
Storage Temperature
Tstg
-55
150
°C
Rt
500
16000
Ω
Symbol
Value
Unit
Rth j/a
120
°C/W
Typ
Max
Unit
DC Voltage On Pins 1
RTH, RTL Termination Resistance
Archive Information
MAXIMUM RATING
THERMAL RATINGS
Ratings
Thermal Resistance From Junction To Ambient
ELECTRICAL CHARACTERISTICS VDD = 4,75 to 5,25; VBAT=6 to 27V; Tamb = -40 to 125°C unless otherwise specified
Conditions
Symbol
Min
SUPPLY
Vdd Supply Current (Normal Mode)
TX= VDD, Recessive State
IVDD
2.3
3
mA
Vdd Supply Current (Normal Mode)
TX = 0V, No Load, Dominant State
IVDD
3.3
5
mA
Vbat Supply Current (Normal Mode)
TX = VDD
IBAT
150
300
µA
Total Supply Current (Receive Only Mode)
VDD = 5V; VBAT = 12V
IVDD + IBAT
0.85
1.2
mA
Total Supply Current (Vbat Standby Mode)
VDD = 5V; VBAT = 12V
IVDD + IBAT
20
40
µA
IBAT
15
25
µA
Vbat Supply Current (Sleep Mode)
VDD = 0V; VBAT = 12V
MC33388
MOTOROLA
2
Archived by Freescale Semiconductor, Inc., 2008
ELECTRICAL CHARACTERISTICS VDD = 4,75 to 5,25; VBAT=6 to 27V; Tamb = -40 to 125°C unless otherwise specified
Conditions
Symbol
Min
Typ
Max
Unit
High Level Input Voltage
Vih
0.7*VDD
VDD+0.3V
V
Low Level Input Voltage
Vil
-0.3
0.3 * VDD
V
High Level Input Current (STB, EN) (Vi = 4V)
Iih
40
µA
Low Level Input Current (STB, EN) (Vi = 1V)
Iil
10
20
TX High Level Input Current (Vi = 4V)
ITX
-25
-80
-200
µA
TX Low Level Input Current (Vi = 1V)
ITX
-100
-320
-800
µA
Forced VBAT Standby Mode (Fail Safe) Threshold
VDD
3
4
4.7
V
Battery Voltage For Setting Power On Flag
VBAT
1.5
3
4
V
High Level Output Voltage NERR (I0 = -100µA)
Voh
VDD - 0.9
VDD
V
High Level Output Voltage RX (I0 = -250µA)
Voh
VDD - 0.9
VDD
V
Low Level Output Voltage (I0 = 1.5mA)
Vol
0
0.9
V
20
Archive Information
Archive Information
STB, EN, TX Pins
µA
RX, NERR Pins
WAKE Pin (must be connected to gnd or BAT if not used)
Typical Wake Up Threshold (VSTB = 0V), High to Low
Transition, VBAT=6V to 18V. NOTE1.
Wuthreshl
0.44 VBAT
V
Typical Wake Up Threshold (VSTB = 0V), Low To High
Transition, VBAT=6V to 18V. NOTE1.
Wuthreslh
0.57 VBAT
V
Wuhyst
500
Wake Up Threshold, High to Low Transition at VBAT=12V
Wuhl
3.6
6.5
V
Wake Up Threshold, Low To High Transition at VBAT=12V
Wulh
6.2
7.5
V
High Level Voltage Drop (IINH = -0.2mA, INH High)
Vdrop
0
0.8
V
Leakage Current (Sleep Mode; VINH = 0V)
Il inh
0
5
µA
Differential Receiver, Recessive To Dominant Threshold
(By Definition, Vdiff=VCANH-VCANL)
Vdiff1
-3.2
-2.5
V
Differential Receiver, Dominant To Recessive Threshold
(Bus Failures 1, 2, 5)
Vdiff2
-3.2
-2.5
V
0.2
V
Wake Up Threshold Hysteresis
mV
INH Pin
CANH, CANL Pins
CANH Recessive Output Voltage
TX = VDD ; R(RTH) < 4k
VCANH
CANL Recessive Output Voltage
TX = VDD ; R(RTL) < 4k
VCANL
VDD - 0.2
V
CANH Output Voltage, Dominant
TX = 0V; I CANH = -40mA; Normal Operating Mode
VCANH
VDD - 1.4
V
MC33388
MOTOROLA
3
Archived by Freescale Semiconductor, Inc., 2008
Archive Information
Conditions
Symbol
Min
Typ
Max
Unit
1.4
V
CANL Output Voltage, Dominant
TX = 0V; I CANL = 40mA; Normal Operating Mode
VCANL
CANH Output Current (VCANH = 0 ; TX = 0)
ICANH
50
75
100
mA
CANL Output Current (VCANL = 14V; TX = 0)
ICANL
50
90
130
mA
Detection Threshold For Short-circuit To Battery Voltage
(Normal Mode)
VCANH, VCANL
7.3
7.9
8.9
V
Detection Threshold For Short-circuit To Battery Voltage
(Standby/Sleep Mode)
VCANH
VBAT/2 +3
VBAT /2+5
V
5
10
µA
0
2
µA
CANH Output Current (Sleep Mode; VCANH = 12V, Failure3)
CANL Output Current (Sleep Mode ; VCANL = 0V ;
VBAT = 12V, Failure 4)
ICANL
CANL Wake Up Voltage Threshold
Vwake,L
2.5
3.3
3.9
V
CANH Wake Up Voltage Threshold
Vwake,H
1.2
2
2.7
V
VwakeL-VwakeH
0.2
CANH Single Ended Receiver Threshold (Failures 4, 6, 7)
VSE, CANH
1.5
1.85
2.15
V
CANL Single Ended Receiver Threshold (Failures 3, 8)
VSE, CANL
2.8
3.05
3.4
V
CANL Pull Up Current (Normal Mode, Failures 4, 6 and 7)
ICANL,pu
45
75
90
µA
CANH Pull Down Current (Normal Mode, Failure 3)
ICANH,pd
45
75
90
µA
Receiver Differential Input Impedance CANH / CANL
Rdiff
100
180
kΩ
Differential Receiver Common Mode Voltage Range
Vcom
-10
10
V
Wake Up Threshold Difference (Hysteresis)
Archive Information
ELECTRICAL CHARACTERISTICS VDD = 4,75 to 5,25; VBAT=6 to 27V; Tamb = -40 to 125°C unless otherwise specified
V
CANH To Ground Capacitance
CCANH
50
pF
CANL To Ground Capacitance
CCANL
50
pF
CCANL to CCANH Capacitor Difference (Absolute Value)
DCcan
10
pF
RTH, RTL Pins
RTL to VDD Switch On Resistance (Iout < -10mA; Normal
Operating Mode)
Rrtl
10
30
50
Ω
RTL to BAT Switch Series Resistance (VBAT Standby Mode
Or Sleep Mode)
Rrtl
8
12.5
20
kΩ
RTH To Ground Switch On Resistance (Iout = 33kΩ
C1>= 47nF
C2>= 4.7uF
C3>= 47nF
C4>= 10uF
L1: optional common mode choke
D1: 1N4148
IC1: LM2935
R1=R2=R (500Ω= 47nF
C2>= 4.7uF
C3>= 47nF
C4>= 10uF
D1: 1N4148
R1=R2=R (500Ω