ON LB1641-E Bidirectional motor driver Datasheet

Ordering number : EN2575E
Monolithic Digital IC
LB1641
Bidirectional Motor Driver
Overview
The LB1641 is a bidirectional motor driver IC. Since it has a 2-input logic circuit and performs the functions of
bidirectional driving and braking, it is capable of direct driving 6V, 9V, 12V motors. The output voltage can be varied by
using an external zener diode.
Features
• 2-input logic can be used to exercise control of bidirectional driving and braking.
• On-chip elements to absorb dash current of motor.
• Input interfaceable to MOS LSI.
• Output voltage variable by use of external zener diode.
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Maximum supply voltage
VCC max
Input voltage
VIN
Output circuit
IOUT
Allowable power dissipation
Pd max
Operating temperature
Storage temperature
Conditions
Ratings
Unit
18
V
-0.3 to VCC
V
±1.6
A
1.2
W
Topr
-25 to +75
°C
Tstg
-55 to +125
°C
Recommended Operating Ranges at Ta = 25°C
Parameter
Supply voltage
Symbol
Conditions
Ratings
Unit
VCC1
7 to 18
V
VCC2
5 to 18
V
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer' s products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer' s products or
equipment.
D2408 MS/73098HA (KT)/N3093TS/6247KI, TS No.2575-1/5
LB1641
Electrical Characteristics at Ta = 25°C, VCC = 12V
Parameter
Symbol
Ratings
Conditions
min
Input threshold voltage
Vth
RL = ∞
Minimum input on-state current
IIN
RL = ∞
Output voltage
VO
RL = 60Ω, VZ = 7.4V
Output leakage current
IOL
Pins 5,6 GND, RL = ∞
Unit
typ
1.1
6.6
max
1.3
1.5
V
10
15
µA
7.2
7.4
V
0.01
1.0
mA
Current drain
ICC
Pins 5,6 GND, RL = ∞
6
10
mA
Saturation voltage (upper)
Vsat1
IOUT = 300mA
1.9
2.2
V
Vsat1’
IOUT = 500mA
1.9
2.3
V
Vsat2
IOUT = 300mA
0.25
0.5
V
Vsat2’
IOUT = 500mA
0.4
0.65
V
Saturation voltage (lower)
3
Package Dimensions
unit : mm (typ)
3043C
Pd max -- Ta
Allowable power dissipation, Pd max -- W
1.4
3.25
1
4.9
1.1
(6.5)
7.7MAX
24.0
10
(0.62)
1.2
2.54
0.5
0.25
1.5
1.2
1.0
0.8
0.6
0.4
0.2
0
-25
SANYO : SIP10
0
25
50
75
100
Ambient temperature, Ta -- °C
Pin Assignment
LB1641
2
1
GND OUT1
3
P1
4
VZ
5
IN1
6
IN2
7
8
VCC1 VCC2
9
P2
10 Top view
OUT2
Truth Table
Input
IN1
Output
IN2
IN3
Operation
IN4
0
0
0
0
Braking
1
0
1
0
Forward (reverse) drive
0
1
0
1
Reverse (forward) drive
1
1
0
0
Braking
Input level 1 : 2.0V or greater
0 : 0.7V or less
No.2757-2/5
LB1641
Block Diagram
OUT1 VCC2 OUT2
8
2
10
P2
9
VCC1
7
Predriver
P1
3
IN1 5
4 VZ
6 IN2
Input logic circuit
GND 1
Test Circuit
0.01µF
RL
SW
A
3
2
7
10
VCC1,2=12V
9
8
4
6
VZ
7.4V
LB1641
5
1
A
V
VIN
Sample Application Circuit : 6V motor circuit
LB1641
3
4
5
6
7
8
9
10
10Ω
2
6.8ZD
1
IN1 IN2
VCC=12V
0.01µF
M
0.1µF
No.2757-3/5
LB1641
ICC -- VCC
8
Vsat1 -- IO
4.0
VCC = 12V
Saturation voltage, Vsat1 -- V
Current drain, ICC -- mA
7
6
5
4
3
2
3.2
2.4
1.6
0.8
1
0
0
0
4
8
12
16
20
0
24
0.4
ICC -- Ta
8
0.8
1.2
1.6
2.0
Output current, IO --A
Supply voltage, VCC -- V
Vsat2 -- IO
1.6
VCC = 12V
1.4
Saturation voltage, Vsat2 -- V
Current drain, ICC -- mA
7
6
5
4
3
2
1.2
1.0
0.8
0.6
0.4
0.2
1
0
-40
0
0
40
80
120
160
Ambient temperature, Ta -- °C
0.4
0.8
1.2
1.6
2.0
Output current, IO --A
VO -- VZ
18
0
VCC = 18V
IOUT = 0.3V
16
Output voltage, VO -- V
14
12
10
8
6
4
2
0
0
4
8
12
16
20
Zener voltage, VZ -- V
No.2757-4/5
LB1641
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to change without notice.
PS No.2575-5/5
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