U6268B datasheet(7/12 Pages) TEMIC

Part #	U6268B

Description	Side-Airbag Sensor Dual Interface

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Manufacturer	TEMIC [TEMIC Semiconductors]

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U6268B

Preliminary Information

TELEFUNKEN Semiconductors

Rev. A1, 21-May-97

7 (12)

Unit

Max.

Typ.

Min.

Symbol

Test Conditions / Pins

Parameters

Voltage threshold CLL-

comparator

CLLx low-level voltage threshold

CLLx high-level voltage threshold

Voltage hysteresis

VCLL_L

VCLL_H

VCLL_hys

1.75

1.43

0.26

2.4

1.9

0.6

V

Minimal voltage at

OCMx

IOUT = 0 to 5 mA

VOCM_min

0.5

V

Current-limitation level

VS

v 40 V OUTx short to GND

VOCM_lim

4.3

5.3

V

Overcurrent-detection

level

VS

v 40 V

VOCM_det

4.2

4.9

V

Current limitation minus

overcurrent detection

VOCM_lim – VOCM_over

D_lim_OCM

0.15

0.5

V

Intern. pull-down current

IOCM_sink

0.1

0.45

mA

Function RETURN1, RETURN2

Enable high saturation

voltage

IRETURN = 50 mA

Vret_sat

0.5

V

Dynamic resistance

dI

w 10 mA

Rret

2

8

W

Current limitation

Enable high, VRETURNx = 2 V

Iret_lim

60

150

mA

RETURNx is always

higher than current

Enable high, VRETURNx

v 18 V

Iret_lim

70

200

mA

higher than current

limitation OUTx

Enable low VRETURNx

v 18 V

Iret_lim

0.8

2

mA

Overcurrent-detection

level

Threshold comparator, switch-off

return

Threshold comparator, switch-on

return

Hysteresis

Iret_low

Iret_high

Iret_hys

1.4

1.1

0.2

2

1.5

0.7

V

Delay time

CRETURN = 47 nF

Switching on IRETURN at 50 mA

Switching off IRETURN at 1 mA

tdRet_on

tdRet_off

3

30

90

ms

Function CLL1, CLL2 (CLLx with 2 k

W to 5 V)

IOUT threshold CLL

comparator

ROCM = 750

W

CLL low-level threshold

CLL high-level threshold

Hysteresis

ICLL_L

ICLL_H

ICLL_hys

23.3

19.1

3.5

27.3

22.3

8.2

mA

CLL saturation voltage

ICLL

v 2.5 mA

VCLL_sat

0.4

V

CLL leakage current

VCLL

v 6.5 V

ICLL_leak

1

mA

Response time to current

change

IOUT to CLL rise

IOUT to CLL fall

Max. difference between rise and

fall time

tCll_rise

tCll_fall

tD rise-fall

0.1

2

1

ms

CLL output switching

speed

Rise

Fall

tCLL_rise

tCLL–fall

1

ms

Current transmission rate

60

kHz

Current transmission

3 dB bandwidth

500

kHz

Function ENABLE1, ENABLE2

Enable low–level

threshold

VEnable_off

2

6.5

V

Enable high-level

threshold

VEnable_on

–0.3

0.8

V

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