NTE1857 Datasheet, PDF (2/6 Pages) NTE Electronics – Integrated Circuit Stepper Motor Driver

Recommended Operating Conditions:
Characteristic
Supply Voltage
Clamp Diode Cathode Voltage
Driver Output Current (Per Coil)
Input Voltage (Pins 7, 8, 9, 10)
Bias/Set Current (Outputs Active)
Phase A Output Voltage
Phase A Sink Current
Operating Ambient Temperature
Symbol
V_M
V_D
I_OD
V_in
I_BS
V_OA
I_OA
T_A
Min
+7.2
V_M
–
0
–300
–
0
0
Max
Unit
+16.5
Vdc
V_M + 4.5 Vdc
350
mA
+5.5
Vdc
–75
µA
V_M
Vdc
8.0
mA
+70
°C
DC Electrical Characteristics: (Specifications apply over the recommended supply voltage and
temperature ranges unless otherwise specified, See Notes 2, 3)
Parameter
Input Logic Levels
Threshold Voltage (Low–to–High)
Threshold Voltage (High–to–Low)
Hysteresis
Current
Driver Output Levels
Output High Voltage
Output Low Voltage
Differential Mode Output Voltage
Difference
Common Mode Output Voltage
Difference
Output Leakage – HiZ State
Clamp Diodes
Forward Voltage
Leakage Current (Per Diode)
Pins Symbol
Test Conditions
Min Typ Max Unit
7, 8, 9,
10
V_TLH
V_HTL
V_HYS
I_IL
I_IH1
I_IH2
V_I = 0.4V
V_I = 5.5V
V_I = 2.7V
–
0.8
0.4
–100
–
–
– 2.0 V
––V
––V
– – µA
– +100 µA
– +20 µA
2, 3, V_OHD I_BS = –300µA I_OD = –350mA V_M–2.0 –
–
V
14, 15
I_OD = –0.1mA V_M–1.2 –
–
V
V_OLD I_BS = –300µA, I_OD = 350mA
–
– 0.8 V
DV_OD I_BS = –300µA, I_OD = 350mA,
Note 4
–
– 0.15 V
CV_OD I_BS = –300µA, I_OD = –0.1mA,
Note 5
–
– 0.15 V
I_OZ1 0 ≤ V_OD ≤ V_M
I_OZ2
I_BS = –5µA
I_BS = –300µA,
Pin9 = 2V, Pin8
= 0.8V
–100
–100
– +100 µA
– +100 µA
1, 2, 3, V_DF
–
14, 15
I_DR Pin1 = 21V, Pins 2, 3, 14, 15 = 0V,
–
I_BS = 0µA
2.5 3.0 V
– 100 µA
Note 2. Algebraic convention rather than absolute values is used to designate limit values.
Note 3. Current into a pin is designated as positive. Current out of a pin is designated as negative.
Note 4. DV_OD = |V_OD1,2 – V_OD3,4| where
V_OD1,2 = (V_OHD1 – V_OLD2) or (V_OHD2 – V_OLD1), and
V_OD3,4 = (V_OHD3 – V_OLD4) or (V_OHD4 – V_OLD3).
Note 5. CV_OD = |V_OHD1 – V_OHD2| or |V_OHD3 – V_OHD4|.