MC3479FN Datasheet, PDF (3/10 Pages) ON Semiconductor – Stepper Motor Driver

MC3479
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
PHASE A OUTPUT
Output Low Voltage
Off State Leakage Current
POWER SUPPLY
(I_OA = 8.0 mA) 11
(V_OHA = 16.5 V)
V_OLA
I_OHA
−
−
0.4 Vdc
−
−
100
mA
Power Supply Current
16
(I_OD = 0 mA, I_BS = − 300 mA)
(L1 = V_OHD, L2 = V_OLD, L3 = V_OHD, L4 = V_OLD)
I_MW
(L1 = V_OHD, L2 = V_OLD, L3 = Hi Z, L4 = Hi Z)
I_MZ
(L1 = V_OHD, L2 = V_OLD, L3 = V_OHD, L4 = V_OHD)
I_MN
BIAS/SET CURRENT
mA
−
−
70
−
−
40
−
−
75
To Set Phase A
6
I_BS
− 5.0
−
−
mA
2. Algebraic convention rather than absolute values is used to designate limit values.
3. Current into a pin is designated as positive. Current out of a pin is designated as negative.
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).
PACKAGE THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction−to−Ambient (No Heatsink)
Symbol
R_qJA
Min Typ Max Unit
−
45
−
°C/W
AC SWITCHING CHARACTERISTICS (T_A = + 25°C, V_M = 12 V) (See Figures 2, 3, 4) (Notes 5, 6)
Characteristic
Pins Symbol
Min
Clock Frequency
7
f_CK
0
Clock Pulse Width (High)
7
PW_CKH
10
Clock Pulse Width (Low)
7
PW_CKL
10
Bias/Set Pulse Width
6
PW_BS
10
Setup Time (CW/CCW and F/HS)
10−7
t_su
5.0
9−7
Hold Time (CW/CCW and F/HS)
10−7
t_h
10
9−7
Propagation Delay (Clk−to−Driver Output)
t_PCD
−
Propagation Delay (Bias/Set−to−Driver Output)
t_PBSD
−
Propagation Delay (Clk−to−Phase A Low)
7−11
t_PHLA
−
Propagation Delay (Clk−to−Phase A High)
7−11
t_PLHA
−
5. Algebraic convention rather than absolute values is used to designate limit values.
6. Current into a pin is designated as positive. Current out of a pin is designated as negative.
Typ Max Unit
−
50
kHz
−
−
ms
−
−
ms
−
−
ms
−
−
ms
−
−
ms
8.0
−
ms
1.0
−
ms
12
−
ms
5.0
−
ms
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