L497B 查看數據表（PDF） - STMicroelectronics

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L497B

HALL EFFECT PICKUP IGNITION CONTROLLER

STMicroelectronics 

ELECTRICAL CHARACTERISTICS (continued)

Symbol

V6SAT

I6 leak

VZ7

V12

Parameter

RPM Output Saturation Voltage

RPM Output Leakage Current

Auxiliary Zener Voltage

Reference Voltage

Test Conditions

I6 = 18.5 mA

I6 = 25 mA

VS = 20 V

I7 = 20 mA

N otes :

1.

td/t desaturation

ratio is

given by:

td

T

=

1

+

1

I11C

⁄

I11D

2. Isense = Icoil when the external Darlington is in the active region.

APPLICATION INFORMATION

Figure 1 : Main Waveforms.

L497

Min. Typ. Max. Unit

0.5

V

0.8

V

50

µA

19

27

V

1.20 1.25 1.30

V

5/11

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