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LB1837 Datasheet(PDF) 2 Page - Sanyo Semicon Device

Part # LB1837
Description  Low-voltage/Low-saturation Bidirectional Constant-Voltage Regulated Motor Driver
PDF  5 Pages
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1837 Datasheet(HTML) 2 Page - Sanyo Semicon Device

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Electrical Characteristics at Ta=25 °C, VCC =6 V
Parameter
Symbol
Conditions
min
typ
max
Unit
Supply current
ICC0
During standby
0.1
10
µA
ICC1
(For one channel) During bidirectional operation
during control, load open
23
mA
ICC2
(For one channel) During bidirectional operation
during saturation, load open
35
mA
ICC3
During braking (for one channel)
6.5
9
mA
Output saturation voltage
Vsat1
IO = 100 mA (upper side + lower side)
0.3
0.4
V
Vsat2
IO = 200 mA (upper side + lower side)
0.4
0.55
V
Vsat3
IO = 200 mA (lower side)
0.07
0.10
0.15
V
Reference voltage
Vref
Ivref=1mA
1.85
2.0
2.15
V
Output voltage
voltage characteristics
∆VO
∆VCC
VO =5V,VCC = 5.5 to 9 V,
IO = 100 mA
20
mV
Output voltage
current characteristics
∆VO
∆ICC
VO =5V,VCC =6V,
IO =10to100 mA
50
mV
Input current
IIN
VIN = 5 V
90
150
µA
Output voltage
VO
Between OUT and GND
2.5xVC
2.7xVC
V
Equivalent Circuit Block Diagram
(For one channel)
Truth Table
Input
Output
Mode
IN 1/3
IN 2/4
OUT 1/3
OUT 2/4
L
L
OFF
OFF
Standby
HLHL
Constant-voltage
regulated forward
operation
LHLH
Constant-voltage
regulated reverse
operation
H
H
L
L
Brake
The constant-voltage regulated output VO (= voltage between H
side output and GND) is controlled by 2.5 x VC. The output is
in the saturated state when the VC input range is 0.2 to 6 V and
VO ^ VCC.
Pin Assignment
Thermal
Reference
voltage
Logic predriver
Note: Both GND pins must be grounded.
LB1837M
No.3948 -2/5



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