Philips Semiconductors Product data
AU5780ASAE/J1850/VPW transceiver
2
2001 Jun 19 853-2261 26558
FEATURES
• Supports SAE/J1850 VPW standard for in-vehicle class B
multiplexing
• Bus speed 10.4 kbps nominal
• Drive capability 32 bus nodes
• Low RFI due to output waveshaping with adjustable slew rate
• Direct battery operation with protection against +50V load dump,
jump start and reverse battery
• Bus terminals proof against automotive transients up to
–200V/+200V
• Thermal overload protection
• Very low bus idle power consumption
• Diagnostic loop-back mode
• 4X mode (41.6 kbps) reception capability
• ESD protected to 9 KV on bus and battery pins
• 8-pin SOIC
DESCRIPTION
The AU5780A is a line transceiver being primarily intended for
in-vehicle multiplex applications. It provides interfacing between a
link controller and the physical bus wire. The device supports the
SAE/J1850 VPWM standard with a nominal bus speed of 10.4 kbps.
PIN CONFIGURATION
SL01207
1
2
3
4
8
7
6
SO8
5
TX
R/F
RX
GND
BATT
BUS_OUT
BUS_IN
/LB
AU5780A
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
BATT.op
Operating supply voltage 6 12 24 V
T
A
Operating ambient temperature –40 +125 °C
V
BATT.ld
Battery voltage load dump; 1s +50 V
I
BATT.lp
Bus idle supply current V
BATT
=12V 220 µA
V
B
Bus voltage 0 < V
BATT
< 24V –20 +20 V
V
BOH
Bus output voltage 300Ω < R
L
< 1.6kΩ 7.3 8.0 V
–I
BO.LIM
Bus output source current 0V < V
BO
< +6.0V 27 50 mA
V
BI
Bus input threshold 3.65 4.1 V
t
bo
Delay TX to BUS_OUT, normal battery Measured at 3.875V 13 21 µs
t
r
, t
f
BUS_OUT transition times, rise and fall,
normal battery
Measured between
1.5 V and (V
BATT
– 2.75 V),
9 < V
BATT
< 16 V,
t
r
tested at an additional bus
load of R
LOAD
= 400 W and
C
LOAD
= 22000 pF
11 18 µs
ORDERING INFORMATION
DESCRIPTION TEMPERATURE RANGE ORDER CODE DWG #
SO8: 8-pin plastic small outline package –40 to +125°C AU5780AD SOT96-1
