LB1935FA is IC with forward/reverse motor drive 2-channel in which low saturation voltage and low voltage
operation possible. Its small sized package is optimal for 2 phase excitation drive of 2 phase bipolar stepping motors
for various portable devices such as digital still cameras.
Features
• Low saturation voltage, VO (sat) = 0.3V typ at IO = 150mA
• Built-in shoot-through current protection circuit
• No standby current consumption (or zero)
• Built-in thermal shutdown circuit
• Micro10 small-sized package
Absolute Maximum Ratings
at Ta = 25°C
Parameter
Maximum power source voltage
Applied output voltage
Applied input voltage
GND Pin outflow current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VCC max
VOUT max
VIN max
I GND
Pd max
Topr
Tstg
OUT1, OUT2, OUT3, OUT4 pin
ENA, IN1, IN2 pin
Per channel
With substrate*
Conditions
Ratings
-0.3 to +8.0
VCC+VSF
-0.3 to +8.0
400
400
-20 to +75
-40 to +150
Unit
V
V
V
mA
mW
°C
°C
* Specified substrate: 20.0mm×10.0mm×0.8mm, paper phenol
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high
current, high voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
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.
Semiconductor Components Industries, LLC, 2013
June, 2013
52312 SY 20120514-S00001 No.A2060-1/4
LB1935FA
Allowable Operating Range
at Ta = 25°C
Parameter
Source voltage
Input high level voltage
Input low level voltage
Symbol
VCC
VIH
VIL
ENA, IN1, IN2 pin
ENA, IN1, IN2 pin
Conditions
Ratings
2.2 to 7.5
1.8 to 7.5
-0.3 to +0.7
Unit
V
V
V
Electric Characteristics
at Ta = 25°C, VCC = 3.3V
Parameter
Power source current
Symbol
ICC0
ICC1
Output saturation voltage
VOUT1
VOUT2
Input current
IIN
IENA
Spark killer diode
Reverse current
Forward voltage
IS(leak)
VSF
IOUT = 200mA
1
1.7
μA
V
Conditions
min
ENA = 0V, VIN = 3V or 0V
ENA = 3V, VIN = 3V or 0V
ENA = 3V, VIN = 3V or 0V, IOUT = 100mA
ENA = 3V, VIN = 3V or 0V, IOUT = 200mA
VIN = 3V
VENA = 3V
Ratings
typ
0.1
13
0.2
0.4
40
40
max
1
19
0.3
0.6
60
60
μA
mA
V
V
μA
μA
Unit
Package Dimensions
unit : mm (typ)
3428
3.0
10
500
Pd max -- Ta
Specified Substrate : 20.0×10.0×0.8mm
3
Peper phenol
Allowable power dissipation, Pd max -- mW
400
3.0
4.9
0.55
300
240
200
1 2
0.5
0.25
1.03
0.16
100
0
-20
0
20
40
60
80
100
Ambient temperature, Ta --
°C
SANYO : Micro10
Pin Assignments
0.1
VCC
IN2
ENA
IN1
(NC)
1
2
3
4
5
Top view
10 OUT4
9
LB1935FA
8
7
6
OUT3
OUT1
OUT2
GND
No.A2060-2/4
LB1935FA
Block Diagram
Truth Table
Input
ENA
L
H
IN1
-
L
L
H
H
IN2
-
L
H
H
L
OUT1
OFF
H
H
L
L
OUT2
OFF
L
L
H
H
Output
OUT3
OFF
H
L
L
H
OUT4
OFF
L
H
H
L
Remarks
Standby
2-phase excitation
No.A2060-3/4
LB1935FA
Timing Chart
Timing chart below shows the 2 phase excitation stepping motor.
ENA
IN1
IN2
OUT1
OUT2
OUT3
OUT4
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