ENA2037 D

Ordering number : ENA2037C
LB1909MC
Monolithic Digital IC
Stepping Motor Driver IC
http://onsemi.com
Overview
The LB1909MC is motor driver IC that can operate on a wide supply voltage range (2.5V to 16V). The IC is ideal for
use in 2-phase excitation drive of general-purpose 2-phase bipolar stepping motors including dampers for refrigerators.
Features
• Wide supply voltage range : 2.5V to 16V
• Low saturation voltage : VO(sat) = 0.25V typ at IO = 200mA.
• Built-in shoot-through current protection circuit.
• No standby current consumption (or zero).
• Built-in thermal shutdown circuit.
• Small package : SOIC10
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Maximum power source voltage
VCC max
-0.3 to +20
V
Applied output voltage
VOUT max
-0.3 to +20
V
Applied input voltage
VIN max
-0.3 to +18
GND pin outflow current
IGND
Allowable power consumption
Pd max
Operating temperature
Topr
-30 to +85
°C
Storage temperature
Tstg
-40 to +150
°C
Mounted on the specified board *
V
800
mA
820
mW
* Specified board: 114.3mm × 76.1mm × 1.6mm, glass epoxy board.
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
53012 SY/32812 SY 2012322-S00003/31512 SY No.A2037-1/4
LB1909MC
Allowable Operating Range at Ta = 25°C
Parameter
Symbol
Supply voltage
VCC
Input high level voltage
VIH
Input low level voltage
VIL
Conditions
Ratings
Unit
2.5 to 16
V
1.8 to 10
V
-0.3 to +0.7
V
Pins ENA, IN1, IN2
Electrical Characteristics at Ta = 25°C, VCC = 12V
Parameter
Symbol
Ratings
Conditions
min
Power source current
Output saturation voltage
Input current
Unit
typ
max
ICC0
ENA = L
0.1
10
μA
ICC1
ENA = H
25
35
mA
VOUT1
IOUT = 200mA
0.25
0.35
V
VOUT2
IOUT = 400mA
0.50
0.75
V
IIN
VIN = 5V
120
160
μA
Ttsd
Design guarantee *2
180
°C
60
°C
Thermal protection block *1
Thermal shutdown operation
temperature
ΔTtsd
Temperature hysteresis width
Spark killer diode
Reverse current
IS(leak)
orward voltage
VSF
IOUT = 400mA
30
μA
1.7
V
*1 The thermal protection function is a feature to prevent the product from smoking and firing under unusual conditions. It is not intended to guarantee
operation of the product under an ambient temperature exceeding the operating temperature range.
*2 Design guarantee is not tested in individual units.
Package Dimensions
unit : mm (typ)
3426A
4.9
1.75 MAX
0.21
Allowable power dissipation, Pd max -- W
0.835
0.37
6.0
5
0.41
1.5
1.0
Specified board : 114.3×76.1×1.6mm3
glass epoxy board
0.82
0.8
0.6
0.42
0.4
0.2
0
-30
0.175
1
Pd max -- Ta
1.0
6
3.9
10
0
30
60
90
120
Ambient temperature, Ta -- C
SANYO : SOIC10
No.A2037-2/4
LB1909MC
Pin Assignment
VCC 1
IN1 3
IN2 4
LB1909MC
ENA 2
10 OUT1
NC 5
9 OUT2
8 OUT3
7 OUT4
6 GND
Top view
Truth table
Input
Output
Remarks
ENA
IN1
IN2
OUT1
OUT2
OUT3
OUT4
L
×
×
OFF
OFF
OFF
OFF
H
L
L
H
L
H
H
Standby mode
Channel 1
Forward
Reverse
L
H
L
H
L
H
Channel 2
Forward
Reverse
Block Diagram
30kΩ
100kΩ
35kΩ
IN1 3
Control block circuit
ENA 2
Thermal shutdown circuit
VCC 1
10
9
OUT1
Motor
OUT2
100kΩ
35kΩ
IN1 4
8
7
100kΩ
6
OUT3
OUT4
GND
No.A2037-3/4
LB1909MC
Timing Chart (2 phase excitation drive)
ENA
IN1
IN2
Forward
Channel 1 output
Reverse
Forward
Reverse
Forward
Standby
Channel 2 output
Standby
Reverse
Forward
Reverse
Forward
Reverse
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PS No.A2037-4/4
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