NTE7005
Integrated Circuit
2鈥揚hase Stepping Motor Driver
Description:
The NTE7005 monolithic power IC is a dual bridge driver in a 16鈥揕ead DIP type package. The maxi-
mum driving current and voltage is 330mA x 12V per bridge. Therefore, the best use for this part is
in a two鈥損hase bipolar stepping motor driving the head actuator of a 3, to 5.25鈥搃nch Floppy Disk Drive.
Features:
D
330mA Output Current Capability
D
Dual Bridge Included
D
Power Save
D
Single Input Direction Control
D
Low Output Saturation Voltage
D
Low Supply Current
D
Low Input Current
D
Compatible with TTL, LSTTL, and 5V CMOS
D
Thermal Shutdown
Absolute Maximum Ratings:
(T
A
= +25擄C, Note 1 unless otherwise specified)
Logic Stage Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Seeking Supply Voltage, V
s1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Holding Supply Voltage, V
s2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input Voltage, V
i
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to V
CC
Peak Seeking Current (t
鈮?/div>
5ms), I
o
(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA
DC Seeking Current, I
os
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330mA
DC Holding current, I
OH
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mA
Power Dissipation (Note 2), P
T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W
Junction Temperature, T
J
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150擄C
Operating Junction Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0擄 to +125擄C
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +125擄C
Note 1. The absolute maximum ratings are limiting values, to be applied individually, beyond which
the device may be permanently damaged. Functional operation under any of these condi-
tions is not guaranteed. Exposing a circuit to its absolute maximum rating for extended peri-
ods of time may affect the device鈥檚 reliability.
Note 2. Thermal resistance is as follows:
R
thJA
1
鈮?/div>
+60擄C/W (Soldered on a print circuit board)
R
thJA
2
鈮?/div>
+35擄C/W (Soldered on a print circuit covered with copper sufficiently)
R
thJA
3
鈮?/div>
+15擄C/W (Soldered on Pin4, Pin5, Pin12, and Pin13 with an infinite heat sink)
1
2
3
