LB1943 Datasheet, PDF (1/5 Pages) Sanyo Semicon Device – Forward/Reverse Motor Driver with Braking Function

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.
Functions
• Single-input control of forward, reverse, and braking
operations
• Resistor output voltage setup
• Either full drive or VC drive can be selected from the
single control input.
• Can be controlled from a microprocessor.
• Built-in motor dash current absorbing device
• Built-in reference voltage circuit
• Built-in thermal protection circuit
Package Dimensions
unit: mm
3043A-SIP10
[LB1943]
SANYO: SIP10
Specifications
Absolute Maximum Ratings at Ta = 25°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 ≥ V_IN
Conditions
Ratings
Unit
18
V
–0.3 to +6
V
±1.6
A
1.2
W
–25 to +75
°C
–55 to +125
°C
Allowable Operating Ranges at Ta = 25°C
Parameter
Supply voltage range
Forward-reverse disabled time
Symbol
V_CC1
V_CC2
Toff
V_CC1 ≥ V_CC2
Conditions
Electrical Characteristics at Ta = 25°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
Unit
8 to 18
V
5 to 18
V
Over 20
µs
min
0
4.2
2
Ratings
Unit
typ
max
1
V
6.0
V
3
V
75
kΩ
5.5
10.0 mA
Continued on next page.
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22898HA (OT) No. 5806-1/5