Ordering number : EN5806
Monolithic Digital IC
LB1943
Forward/Reverse Motor Driver with Braking Function
Overview
The LB1943 is a forward/reverse motor driver IC. This IC
supports forward, reverse, and braking control from a
single input, and the desired output voltage can be set with
a resistor. Either full drive or VC drive can be selected
from the single input, and the LB1943 can be controlled
from a microprocessor.
Package Dimensions
unit: mm
3043A-SIP10
[LB1943]
Functions
鈥?Single-input control of forward, reverse, and braking
operations
鈥?Resistor output voltage setup
鈥?Either full drive or VC drive can be selected from the
single control input.
鈥?Can be controlled from a microprocessor.
鈥?Built-in motor dash current absorbing device
鈥?Built-in reference voltage circuit
鈥?Built-in thermal protection circuit
SANYO: SIP10
Specifications
Absolute Maximum Ratings
at Ta = 25擄C
Parameter
Maximum supply voltage
Input voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
CC
max
V
IN
I
OUT
Pd max
Topr
Tstg
V
CC
鈮?/div>
V
IN
Conditions
Ratings
18
鈥?.3 to +6
鹵1.6
1.2
鈥?5 to +75
鈥?5 to +125
Unit
V
V
A
W
擄C
擄C
Allowable Operating Ranges
at Ta = 25擄C
Parameter
Supply voltage range
Forward-reverse disabled time
Symbol
V
CC
1
V
CC
2
Toff
V
CC
1
鈮?/div>
V
CC
2
Conditions
Ratings
8 to 18
5 to 18
Over 20
Unit
V
V
碌s
Electrical Characteristics
at Ta = 25擄C, V
CC
= 12 V
Parameter
Input low-level voltage
Input high-level voltage
Input mid-level voltage
Input impedance
Current drain
Symbol
V
INL
V
INH
V
INM
Z
IN
I
CC
Conditions
Ratings
min
0
4.2
2
75
5.5
10.0
typ
max
1
6.0
3
Unit
V
V
V
k鈩?/div>
mA
Continued on next page.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN
22898HA (OT) No. 5806-1/5
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