Document
Memory/Clock Drivers
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DH3725C quad NPN core driver
general description
typical characteristics
The DH3725C consists of four 2N3725 type NPN
transistors mounted in a 14-pin molded dual-in-line
package_ The device is primarily intended for core
memory application requiring operating currents
in the ampere range, high stand-off voltage, and fast turn-on and turn-off tlmes_
Turn-ON Time Turn-OFF Time Collector Current Collector-Base Breakdown Voltage
Collector Saturation Voltage atle=lA Collector Saturation Voltage at Ie = 0_5A
18 ns 45 ns
1A 120V typo
O.55V
O.31V
connection diagram
Dual-In-Llne Package
Order Number DH3725CD See Package 1
Ne Order Number DH3725CN See Package 22
TOP VIEW
switching time test circuit
-38V
+30V
1pF
IKn ~VOUT
-D
10llF
tV,O&N~~'"I7..
<>-tj,V", I---+---'WY-I 1&2<
PW~1P1
_
"':"
ZIN=60fl
-
DUTV CYCLE < 2%
TO SAMPLING SCOPE t,<1ns
IC '" 500 mA, ISl '" 50 mA, IS2 '" -50 mA
3-3
absolute maximum ratings
Collector to Base Volt.