M54678FP Mitsubishi Electronics America, Inc., M54678FP Datasheet

no-image

M54678FP

Manufacturer Part Number
M54678FP
Description
2-phase Stepper Motor Driver
Manufacturer
Mitsubishi Electronics America, Inc.
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M54678FP
Manufacturer:
MITSUBIS
Quantity:
20 000
DESCRIPTION
The M54678FP is a semiconductor integrated circuit designed for
stepper motor driver used to printer, PPC and facsimile.
FEATURES
APPLICATION
Printers, PPC, facsimile
FUNCTION
The M54678FP is a integrated circuit which can drive two phase
stepper motor. The output current direction is determined by phase
terminal function, and the output current level is controlled by Vref
terminals voltage.
BLOCK DIAGRAM
Wide supply voltage range (10 – 35V)
Output current is controlled by PWM operation
Few external components (This IC can be operated with 1
capacitor and 2 resistances)
Voltage stabilizer circuit (Regout = 3.5V)
Thermal protection circuit
Flywheel diode
Ph1
En1
Delay
Rs1
Out1
S1
Source
PWM
P.GND
Current
comp1
Vref1
Out1B
Spike
current
cancel
R
Delay
S
FF1
Q
Vm
Fref
Frequency
Generator
VTM
Q R
Delay
FF2
PIN CONFIGURATION (TOP VIEW)
S
Spike
current
cancel
Out2
Vref2
MITSUBISHI <CONTROL / DRIVER IC>
Current
comp2
GND
2-PHASE STEPPER MOTOR DRIVER
Regout
Source
PWM
P.GND
P.GND
VTH
VTL
Out1B
Vref1
Out1
Rs1
Ph1
En1
N.C
V
Vm
S1
CC
Out2B
S2
12
13
10
11
14
15
16
17
18
Outline 36P2R-D
1
2
3
4
5
6
7
8
9
1.25V
Rs2
Delay
10K
Regulator(3.5V)
GND
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
M54678FP
18K
N.C
Out2
Out2B
Rs2
S2
Vm
N.C
N.C
Ph2
En2
Vref2
Fref
GND
N.C: no connection
V
Ph2
En2
Regout
CC

Related parts for M54678FP

M54678FP Summary of contents

Page 1

... Thermal protection circuit Flywheel diode APPLICATION Printers, PPC, facsimile FUNCTION The M54678FP is a integrated circuit which can drive two phase stepper motor. The output current direction is determined by phase terminal function, and the output current level is controlled by Vref terminals voltage. BLOCK DIAGRAM ...

Page 2

... Min. Typ. Max. 4.5 5.0 5.5 10 — — 800 — — 2 — — — — 50 — 160 — M54678FP Functions Motor on “H” input Enable Ratings -0.3 – 37 1.0 -0.3 – 7 -0.3 – -0.3 – 1.5 2.0 62.5 150 -20 – 75 -40 – 125 Unit ...

Page 3

... Fref terminal 390pF Iout = -0.1mA – +1mA =5V, VM=24V unless otherwise noted.) CC Test condition Sensing resistor not included 0.75A Time until output on after Fref 2.5V Time until output off after S < Vref MITSUBISHI <CONTROL / DRIVER IC> M54678FP 2-PHASE STEPPER MOTOR DRIVER Limits Min. Typ. Max ...

Page 4

... Thus, please consider this current when you set up output Z Z current *If Vcc, Tj and manufacturing dispersion are considered, dispersion of Ib will vary maximum 5mA (minimum = 5mA, maximum = 15mA) MITSUBISHI <CONTROL / DRIVER IC> M54678FP 2-PHASE STEPPER MOTOR DRIVER VM ON OFF Iout MB ON OFF RS Iout = IRS - Ib ...

Page 5

... GND GND N.C N Vcc N.C 23 Ph1 Ph2 15 22 En1 En2 Vref1 Vref2 20 18 Regout Fref 19 MITSUBISHI <CONTROL / DRIVER IC> M54678FP 2-PHASE STEPPER MOTOR DRIVER 150 Rrs2 An example of the setting Rrs1, Rrs2 = 0.5 – 1.0 Cfref = 390pF input input Cfref ...

Related keywords