IC-HD7_14 Datasheet, PDF (7/8 Pages) IC-Haus GmbH – QUAD DIFFERENTIAL LINE DRIVER

iC-HD7
QUAD DIFFERENTIAL LINE DRIVER
Rev A6, Page 7/8
is usually below 1 amps. Therefore, typical 1 amps
rated rectifier diodes like 1N4002 (with V_R,D = 100 V)
through 1N4007 (with V_R,D = 1000 V) or equivalent
types (BA157 through BA159) can be used. At VB_max
of 30V, neither the suppressor diode TS nor the Zener
diode ZD should draw substantial current. Therefore,
their breakdown voltage should be chosen to be some
volts higher. A 36 V rated suppressor diode with 1.5kW
pulse power capability like a 1N6284 or 1.5KE36 the
minimum breakdown voltage measured at a test cur-
rent of 1 mA is stated as 32.4 V. Also, a zener diode
like a BZT03C36 rated for 36 V also shows a minimum
breakdown voltage of 32.4 V, but measured at test cur-
rent of 10 mA.
Figure 4: Using zener diode ZD to limit circuit supply voltage
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