MC3479FN Datasheet, PDF (2/10 Pages) ON Semiconductor – Stepper Motor Driver

MC3479
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Supply Voltage
V_M
+ 18
Vdc
Clamp Diode Cathode Voltage (Pin 1)
V_D
V_M + 5.0
Vdc
Driver Output Voltage
V_OD
V_M + 6.0
Vdc
Drive Output Current/Coil
I_OD
± 500
mA
Input Voltage (Logic Controls)
V_in
− 0.5 to + 7.0
Vdc
Bias/Set Current
I_BS
− 10
mA
Phase A Output Voltage
V_OA
+ 18
Vdc
Phase A Sink Current
I_OA
20
mA
Junction Temperature
T_J
+ 150
°C
Storage Temperature Range
T_stg
− 65 to + 150
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
RECOMMENDED OPERATING CONDITIONS
Characteristic
Symbol
Min
Max
Unit
Supply Voltage
Clamp Diode Cathode Voltage
Driver Output Current (Per Coil) (Note 1)
Input Voltage (Logic Controls)
Bias/Set Current (Outputs Active)
Phase A Output Voltage
Phase A Sink Current
Operating Ambient Temperature
1. See section on Power Dissipation in Application Information.
V_M
+ 7.2
+ 16.5
Vdc
V_D
V_M
V_M + 4.5 Vdc
I_OD
−
350
mA
V_in
0
+ 5.5
Vdc
I_BS
−300
− 75
mA
V_OA
−
V_M
Vdc
I_OA
0
8.0
mA
T_A
0
+ 70
°C
DC ELECTRICAL CHARACTERISTICS (Specifications apply over the recommended supply voltage and temperature range,
(Notes 2, 3) unless otherwise noted.)
Characteristic
Pins Symbol
Min Typ Max Unit
INPUT LOGIC LEVELS
Threshold Voltage (Low−to−High)
Threshold Voltage (High−to−Low)
Hysteresis
Current: (V_I = 0.4 V)
(V_I = 5.5 V)
(V_I = 2.7 V)
7, 8,
9, 10
V_TLH
V_THL
V_HYS
I_IL
−
0.8
0.4
− 100
−
−
−
2.0 Vdc
−
−
Vdc
−
−
Vdc
−
−
mA
− + 100
−
+ 20
DRIVER OUTPUT LEVELS
Output High Voltage (I_BS = − 300 mA)
I_OD = − 350 mA 2, 3,
I_OD = − 0.1 mA 14, 15
V_OHD
V_M −2.0 −
V_M −1.2 −
−
Vdc
−
Output Low Voltage (I_BS = − 300 mA, I_OD = 350 mA)
Differential Mode Output Voltage Difference (Note 4)
(I_BS = − 300 mA, I_OD = 350 mA)
14, 15
V_OLD
DV_OD
CV_OD
−
−
0.8 Vdc
−
− 0.15 Vdc
−
− 0.15
Output Leakage, Hi Z State
(0 v V_OD v V_M, I_BS = − 5.0 mA) 14, 15
I_OZ1
(0 v V_OD v V_M, I_BS = − 300 mA, F/H = 2.0 V, OIC = 0.8 V)
I_OZ2
CLAMP DIODES
−100
−100
− +100 mA
− +100
Forward Voltage
(I_D = 350 mA) 1, 2,
V_DF
3, 14,
Leakage Current (Per Diode) (Pin 1 = 21 V; Outputs = 0 V; I_BS = 0 mA) ₁₅
I_DR
−
2.5 3.0 Vdc
−
−
100
mA
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