SANYO LB1839M Datasheet
Ordering number: EN3950C
Monolithic Digital IC
LB1839M
Low-voltage/Low-saturation Bidirectional
Constant-Voltage Regulated Motor Driver
Overview
The LB1839M is a low-voltage, low-saturation, three-input
type two-channel bidirectional motor driver that permits
switching between constant-voltage regulated output and
saturated output. The design of the LB1839M is ideal for a
two-phase bipolar driver for stepping motors.
Features
.
Wide operating voltage range (3.0 to 9.0 V).
.
Low saturation voltage
V
(sat) = 0.40 V at IO= 200 mA.
O
.
Consumes almost no current in standby mode
(0.1 µA or less).
.
Permits setting of bidirectional constant-voltage regulated
value.
.
Three-input type that is ideal for a two-phase bipolar driver.
.
Permits switching between constant-voltage regulated output
and saturated output.
.
Built-in reference voltage coupled to input.
.
Compact MFP14S package.
Package Dimensions
unit: mm
3111-MFP14S
[LB1839M]
SANYO : MFP14S
Specifications
Absolute Maximum Ratings atTa=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Output current Im max 250 mA
Applied input voltage V
Allowable power dissipation Pd max With board ( 30 x 30 x 1.5 mm
Operating temperature Topr –20 to +80
Storage temperature Tstg –40 to +125
max 10.5 V
CC
IN
3
) 800 mW
–0.3 to +10 V
Allowable Operating Ranges atTa=25°C
Parameter Symbol Conditions Ratings Unit
Supply voltage V
Input [H] voltage V
Input [L] voltage V
Control voltage V
CC
IH
IL
C
3.0 to 9.0 V
3.0 to 9.0 V
–0.3 to +0.7 V
0.2 to 6.0 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
81095HA(II)/61295HA(II)/5072TS No.3950-1/5
C
°
C
°
LB1839M
Electrical Characteristics atTa=25°C, VCC=6V
Parameter Symbol Conditions min typ max Unit
Supply current I
Output saturation voltage Vsat1 I
Reference voltage Vref Ivref=1mA 1.85 2.0 2.15 V
Output voltage
voltage characteristics
Output voltage
current characteristics
Input current I
Output voltage V
Equivalent Circuit Block Diagram
(For one channel)
0 During standby 0.1 10 µA
CC
I
CC
I
CC
Vsat2 I
Vsat3 I
∆V
∆V
∆V
∆I
CC
IN
(For two channel) During bidirectional operation,
1
(For two channel) During bidirectional operation,
2
= 100 mA (upper side + lower side) 0.30 0.40 V
O
= 200 mA (upper side + lower side) 0.40 0.55 V
O
= 200 mA (lower side) 0.07 0.10 0.15 V
O
VO=5V,VCC= 5.5 to 9 V,
O
I
= 100 mA
CC
O
VO=5V,VCC=6V,
O
I
=10to100mA
O
during control, load open
during saturation, load open
VIN= 5 V 90 150 µA
Between OUT and GND
O
2.5xV
C
3.5 5.0 mA
4.0 6.0 mA
2.7xVCV
20 mV
50 mV
Thermal
Reference
voltage
Logic predriver
Truth Table
Input Output
ENA IN 1/2 VM 1/2
L — — OFF OFF Standby
HLLHL
HLHHL
HHL LH
HHHLH
OUT
1/3
OUT
2/4
The constant-voltage regulated output VO(= voltage between H
side output and GND) is controlled by 2.5 x V
in the saturated state when the V
V
^ VCC.
O
input range is 0.2 to 6 V and
C
Mode
Constant-voltage
regulated forward
operation
Saturated
forward operation
Constant-voltage
regulated reverse
operation
Saturated
reverse operation
. The output is
C
Pin Assignment
Note: Both GND pins must be grounded.
No.3950 -2/5
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