Sanyo LB1643 Specifications
Ordering number: EN 4528B
Monolithic Digital IC
LB1643
Forward/Reverse Motor Driver with Brake
Overview
The LB1643 is a forward/reverse motor driver IC. The
direction and brake functions are controlled from a single
input, and the output voltages can be set by resistors. Further,
the output voltage has 3 modes, full, high-level and low-level
voltage modes. The output voltage can be controlled from a
single input and a microcontroller interface.
Features
.
Single-input forward, reverse and brake functions
.
Output voltage can be set using resistors
.
Single-input full-drive, high-level drive and low-level drive
select function
.
Microcontroller interface
.
Built-in surge-current absorption components
.
Built-in reference voltage circuit
.
Built-in thermal protection circuit
Specifications
Package Dimensions
unit : mm
3043A-SIP10
[LB1643]
SANYO : SIP10
Absolute Maximum Ratings atTa=25°C
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
Input voltage V
Output current I
Allowable power dissipation Pd max 1.2 W
Operating temperature Topr –25 to +75
Storage temperature Tstg –55 to +125
max 18 V
CC
IN
OUT
VCC> V
IN
–0.3 to +6 V
±1.6 A
Allowable Operating Ranges atTa=25°C
Parameter Symbol Conditions Ratings Unit
V
1 8.0 to 18 V
Supply voltage ranges
Forward-reverse direction prohibit time t off ^20 µs
CC
V
2V
CC
CC1
^ V
CC2
5to18 V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
63098HA(II)/D2293TS B8-0434 No.4528-1/5
C
°
C
°
LB1643
Electrical Characteristics atTa=25°C, VCC=12V
Parameter Symbol Conditions min typ max Unit
Input low-level voltage V
Input high-level voltage V
Input mid-level voltage V
Input impedance Z
Current drain I
Output voltages
Output leakage current I
Saturation voltages (upper)
Saturation voltages (lower)
Reference voltage Vref 6.0 6.35 6.8 V
Reference voltage load
characteristics
Control to output gain
Thermal shutdown temperature T
INL
INH
INM
IN
CC
V
OUT1
V
OUT2
OL
Vsat11 V
Vsat12 V
Vsat21 V
Vsat22 V
∆Vref
∆Iref
TSD
RL=60Ω,VCH= 2.5 V, VIN1 = 2.5 V, VIN2 = 0 V 4.4 4.95 5.4 V
RL=60Ω,VCH= 2.5 V, VIN1 = 2.5 V, VIN2 = 5.0 V 4.4 4.95 5.4 V
RL= ∞ 0.01 1.0 mA
=12V,I
CC
=12V,I
CC
=12V,I
CC
=12V,I
CC
Iref = –2.0 to 0 mA 0.05 0.1 V/mA
V
OUT/VCH,VOUT/VCL
VCH= 2.5 V, VCL= 2.5 V, RL=60Ω
See note. 150 180
= 300 mA 1.9 2.2 V
OUT
= 500 mA 1.9 2.3 V
OUT
= 300 mA 0.25 0.5 V
OUT
= 500 mA 0.4 0.65 V
OUT
Note: Design target value only (not measured).
0 1.0 V
4.2 6.0 V
2.0 3.0 V
75 kΩ
5.5 10 mA
1.5 1.9 2.4 Times
C
°
Pin Assignment
Truth Table
Input Output voltage
IN1 IN2 OUT1 OUT2
H H L FULL
LHL2V
H M OFF OFF
L M OFF OFF
H L FULL LOW
LOW
LOW
LL2V
Input levels are
.
VH^ 4.2 V
.
VM= 2.0 to 3.0 V
.
VL% 1.0 V
CH
CL
CH
CL
Forward (reverse)MHL2V
Reverse (forward)ML2V
Operation
BrakeM M OFF OFF
Allowable power dissipation, Pd max – mW
Pd max – Ta
Ambient temperature, Ta –°C
When IN1 and IN2 are open, they take on a voltage of 2.5 V.
Operation equivalent to LB1641.
No. 4528-2/5
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