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U6268B

Features: ` Two identical interface channels` Provides a pre-regulated smoothed voltage and a supply current up to 50 mA for the sensors` Receives data from the sensors by current modulation with a transmission rate of 60 kBaud (transmission bandwidth 500 kHz)` Current modulation provides high noi...

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U6268B: Features: ` Two identical interface channels` Provides a pre-regulated smoothed voltage and a supply current up to 50 mA for the sensors` Receives data from the sensors by current modulation with a ...

U6268B Data Sheet

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Part Number:
U6268B
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

 ` Two identical interface channels
 ` Provides a pre-regulated smoothed voltage and a supply current up to 50 mA for the sensors
 ` Receives data from the sensors by current modulation with a transmission rate of 60 kBaud (transmission bandwidth 500 kHz)
 ` Current modulation provides high noise immunity for data transfer
 ` TTL-compatible input activate the sensor
 ` Data output can be directly connected to a microcontroller input
 ` Operation supply voltage range 5.7 V VS40 V
 ` ESD protection according to MIL-STD-883C test method 3015.7
 ` High-level EMI protection




Pinout

Connection Diagram


Specifications

Parameters
Symbol
Min.
Max.
Unit
Supply voltage
VS
-0.6
40
V
Voltage at pins CLL1, CLL2, ENABLE1, ENABLE
-0.3
6
V
Voltage at SC
VSC
-0.3
30
V
Voltage at OCM1, OCM2
VOCMx
-0.3
6.8
V
Voltage at RETURN1, RETURN2
VRETURNx
-1
27
V
Voltage at OUT1, OUT2
VOUTx
-1
40
V
Current at supply
(both channels OUTx and RETURNx shorted)
IS
240
mA
Current at logical pins: CLL1, CLL2
ENABLE1, ENABLE2
ICCLx
IENABLEx
3
0.1

mA
mA

Current at SC (SC related to GND or VBatt)
ISC
-110
220
A
Current at pins to external unit
OUT1, OUT2, RETURN1, RETURN2
internal
limited
ESD classification
Human body model (100 pF, 1.5 k)
Machine model (200 pF, 0.0 )
All pins
±2000
±200
V
V
Ambient temperature range
Tamb
-40
95
Junction temperature range
Tj
-40
150
Storage temperature range
Tstg
-55
125



Description

The U6268B is an interface IC for remote automotive sensors. It links the crash sensors in the driver- and passenger door with the main airbag unit in the dashboard. Two identical channels supply the external sensors and receive digital information from them via one active wire each. The interface of U6268B supplies the external sensors with a pre-regulated smoothed voltage, the external units transmit the digital information back to the interface by current modulation.

As the U6268B is for safety critical applications, highest data transmission security is mandatory. With high immunity against cross-coupling between the two channels, the U6228B is tailored for the harsh automotive environment.




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