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NTE7005 Integrated Circuit 2-Phase Stepping Motor Driver
Description: The NTE7005 monolithic power IC is a dual bridge driver in a 16-Lead DIP type package. The maximum driving current and voltage is 330mA x 12V per bridge. Therefore, the best use for this part is in a two-phase bipolar stepping motor driving the head actuator of a 3, to 5.25-inch 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: (TA = +25C, Note 1 unless otherwise specified) Logic Stage Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Seeking Supply Voltage, Vs1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Holding Supply Voltage, Vs2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to VCC Peak Seeking Current (t 5ms), Io(peak) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mA DC Seeking Current, Ios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330mA DC Holding current, IOH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200mA Power Dissipation (Note 2), PT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2W Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150C Operating Junction Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +125C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125C 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 conditions is not guaranteed. Exposing a circuit to its absolute maximum rating for extended periods of time may affect the device's reliability. Note 2. Thermal resistance is as follows: RthJA1 +60C/W (Soldered on a print circuit board) RthJA2 +35C/W (Soldered on a print circuit covered with copper sufficiently) RthJA3 +15C/W (Soldered on Pin4, Pin5, Pin12, and Pin13 with an infinite heat sink)
Recommended Operating Conditions:
Parameter Logic Stage Supply Voltage Seeking Supply Voltage Holding Supply Voltage Symbol VCC Vs1 Vs2 Test Conditions Min 4.5 10.2 4.5 Typ 5.0 12.0 5.0 Max 5.5 13.8 5.5 Unit V V V
Electrical Characteristics: (TA = +25C, VCC = 5V, Vs2 = 5V, Vs1 = 12V unless otherwise specified)
Parameter Input Low Voltage Input High Voltage Input Low Current Input High Current Supply Current Symbol VIL VIH IIL IIH ICC VI = 0.8V VI = 2V VI = 5.5V PS = 0.8V, Io = 0 VCC Vs1, Note 3 Vs2, Note 4 PS = 2V, Io = 0 VCC Vs1, Note 3 Vs2, Note 4 Output Transistor Breakdown Voltage Vs1 Saturation Voltage Vs2 Saturation Voltage Clamp Diode Forward Voltage Delay Time V(BR)CE IC = 10mA
R
Test Conditions
Min - 2.0 - - - - - - - - - 18 - - - - - -
Typ - - - 1.0 0.5 25 10 - 25 3 5 - 1.5 1.5 5 1.5 1 1
Max Unit 0.8 - 10 10 1.0 33 20 1.0 33 5 10 - 2.0 2.0 - - 5 5 V V A A mA mA mA mA mA mA mA V V V V V s s
VCE(sat)1 PS = 0.8V, Io = 330mA, Note 5 VCE(sat)2 PS = 2V, Io = 130mA, Note 5 VF tPLH tPHL IF = 330mA Io = 330mA Upper Lower
Note 3. Sum of VS1 (1) and VS1(2) current Note 4. Sum of VS2 (1) and VS2 (2) current Note 5. Sum of upper and lower saturation voltages Truth Table (For each bridge):
Power Save Direction L L H H L H L H FOut L H+ L H- FOut H+ L H- L
Note:
L = Low voltage state H+ = High voltage state (Seeking transistors ON) H- = High voltage state (Holding transistors ON)
Pin Connection Diagram
VS2/Phase 1 VCC Phase 1 Direction GND GND Phase 2 Direction Power Save VS2/Phase 2
1 2 3 4 5 6 7 8
16 VS1/Phase 1 15 Phase 1 Output 14 Phase 1 Output 13 GND 12 GND 11 Phase 2 Output 10 Phase 2 Output 9 VS1/Phase 2
16
9
.260 (6.6) Max
1
8
.785 (19.9) Max
.300 (7.62)
.200 (5.08) Max .245 (6.22) Min
.100 (2.54) .700 (17.7)

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