SANYO LB1935T

Ordering number : ENN7932A
LB1935T
LB1935CL
Monolithic Digital IC
Stepping Motor Driver IC
Overview
LB1935T/LB1935CL 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
• MSOP10 small-sized package (3.0mm×4.9mm×1.1mm typ) [LB1935T]
• ECSP2828-10 ultraminiature leadless package (2.8mm×2.8mm×0.8mm typ) [LB1935CL]
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum Power Source Voltage
VCC max
Applied Output Voltage
VOUT max
OUT1, OUT2, OUT3, OUT4 pin
Applied Input Voltage
VIN max
ENA, IN1, IN2 pin
GND Pin Outflow Current
I GND
Per channel
Allowable Power Consumption
Pd max
With substrate*
[LB1935T]
400
Pd max
With substrate*
[LB1935CL]
450
-0.3 to +8.0
V
VCC+VSF
V
-0.3 to +8.0
400
V
mA
mW
Operating Temperature
Topr
-20 to +75
°C
Storage Temperature
Tstg
-40 to +150
°C
* Specified substrate : 20.0mm×10.0mm×0.8mm paper phenol
Allowable Operating Range at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Source Voltage
VCC
2.2 to 7.5
V
Input High Level Voltage
VIH
ENA, IN1, IN2 pin
1.8 to 7.5
V
Input Low Level Voltage
VIL
ENA, IN1, IN2 pin
-0.3 to +0.7
V
N3004 TN IM / 91004 JO IM No.7932-1/6
LB1935T, LB1935CL
Electric Characteristics at Ta = 25°C, VCC = 3.3V
Parameter
Symbol
Ratings
Conditions
min
Power Source Current
Output Saturation Voltage
ICC0
ENA = 0V, VIN = 3V or 0V
ICC1
ENA = 3V, VIN = 3V or 0V
VOUT1
ENA = 3V, VIN = 3V or 0V, IOUT = 100mA
VOUT2*
ENA = 3V, VIN = 3V or 0V, IOUT = 200mA
[LB1935T only]
Input Current
typ
Unit
max
1
µA
13
19
mA
0.2
0.3
V
0.4
0.6
V
0.1
IIN
VIN = 3V
40
60
µA
IENA
VENA = 3V
40
60
µA
1
µA
1.7
V
Spark killer diode
Reverse Current
IS(leak)
Forward Voltage
VSF*
IOUT = 200mA
[LB1935T only]
Note : *For LB1935CL, it is a design assured value.
Package Dimensions
unit : mm
3297 [LB1935T]
Package Dimensions
unit : mm
3301 [LB1935CL]
No.7932-2/6
LB1935T, LB1935CL
Pin Assignments
VCC
1
10 OUT4
VCC
1
10
OUT4
IN2
2
9 OUT3
IN2
2
9
OUT3
ENA
3
8 OUT1
ENA
3
8
OUT1
IN1
4
7 OUT2
IN1
4
7
OUT2
(NC)
5
6 GND
(NC)
5
6
GND
LB1935T
Top view
LB1935CL
Top view
ILB01601
No.7932-3/6
LB1935T, LB1935CL
Block Diagram
Truth Table
Input
ENA
IN1
Output
IN2
OUT1
OUT2
OUT3
OUT4
Remarks
L
-
-
OFF
OFF
OFF
OFF
Stdby
H
L
L
H
L
H
L
2-phase excitation
L
H
H
L
L
H
H
H
L
H
L
H
H
L
L
H
H
L
No.7932-4/6
LB1935T, LB1935CL
Timing Chart
Timing chart below shows the 2 phase excitation stepping motor.
No.7932-5/6
LB1935T, LB1935CL
PS No.7932-6/6