L9637D ISO 9141 INTERFACE
- OPERATING POWER SUPPLY VOLTAGE RANGE 4.5V ≤ VS ≤ 36V (40V FOR TRANSIENTS)
- REVERSE SUPPLY (BATTERY) PROTECTED DOWN TO VS ≥ -24V
- STANDBY MODE WITH VERY LOW CURRENT CONSUMPTION ISSB 1µA @ VCC 0.5V
- LOW QUIESCENT CURRENT IN OFF CONDITION ISOFF = 120µA
- TTL COMPATIBLE TX INPUT
- BIDIRECTIONAL K-I/O PIN WITH SUPPLY VOLTAGE DEPENDENT INPUT THRESHOLD
- OVERTEMPERATURE SHUT DOWN FUNCTION SELECTIVE TO K-I/O PIN
- WIDE INPUT AND OUTPUT VOLTAGE RANGE -24V ≤ VK ≤ VS
- K OUTPUT CURRENT LIMITATION, TYP IK = 60mA
- DEFINED OFF OUTPUT STATUS IN UNDERVOLTAGE CONDITION AND VS OR GND INTERRUPTION
- CONTROLLED OUTPUT SLOPE FOR LOW EMI
- HIGH INPUT IMPEDANCE FOR OPEN VS OR GND CONNECTION
- DEFINED OUTPUT ON STATUS OF LO OR RX FOR OPEN LI OR K INPUTS
- DEFINED K OUTPUT OFF FOR TX INPUT OPEN
- INTEGRATED PULL UP RESISTORS FOR TX, RX AND LO
- EMI ROBUSTNESS OPTIMIZED
DESCRIPTION
The L9637D is a monolithic integrated circuit containing standard ISO 9141 compatible interface functions.
ABSOLUTE MAXIMUM RATINGS (No damage or latch)
Symbol |
Parameter |
Value |
Unit |
VS |
Supply Voltage
ISO transients t = 400ms
|
-24 to +36
-24 to +40
|
V
V
|
VCC |
Stabilized Voltage |
-0.3 to +7 |
V |
∆VS/dt |
Supply Voltage transient |
-10 to +10 |
V/µs |
VLI, K |
Pin Voltage |
-24 to VS |
V |
VLO, RX, TX |
Pin Voltage |
-24 to VCC |
V |
Note: Max. ESD voltages are ±2kV with human body model C = 100pF, R = 1.5k corresponds to maximum energy dissipation 0.2mJ according to MIL883C.
BLOCK DIAGRAM
PIN CONNECTION (Top view)
OUTLINE AND MECHANICAL DATA
SO8