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LB1845 Datasheet(PDF) 1 Page - Sanyo Semicon Device

Part # LB1845
Description  PWM Current Control Stepping Motor Driver
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Manufacturer  SANYO [Sanyo Semicon Device]
Direct Link  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LB1845 Datasheet(HTML) 1 Page - Sanyo Semicon Device

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Overview
The LB1845 is a PWM current control type stepping
motor driver that uses a bipolar drive scheme. It is
particularly suitable for driving carriage and paper feed
stepping motors in printers and similar products.
Features
• PWM current control (fixed off time scheme)
• Digital load current selection function
• Sustained output voltage: 45 V
• Built-in thermal shutdown circuit
Package Dimensions
unit: mm
3147A-DIP28H
Monolithic Digital IC
Ordering number: EN5505B
D3096HA (OT) No. 5505-1/7
SANYO: DIP28H
[LB1845]
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
PWM Current Control Stepping Motor Driver
LB1845
Parameter
Symbol
Conditions
Ratings
Unit
Motor supply voltage
VBB
45
V
Peak output current
IOPEAK
tW = 20 µS
1.75
A
Continuous output current
IOMAX
1.5
A
Logic block supply voltage
VCC
7.0
V
Logic input voltage range
VIN
–0.3 to VCC
V
Emitter output voltage
VE
1.0
V
Allowable power dissipation
Pd max1
Independent IC
3.0
W
Pd max2
With an arbitrarily large heat sink
20.0
W
Operating temperature
Topr
–20 to +85
°C
Storage temperature
Tstg
–55 to +150
°C
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
Motor supply voltage
VBB
10 to 44.5
V
Logic block supply voltage
VCC
4.75 to 5.25
V
Reference voltage
VREF
1.5 to 7.5
V
Recommended Operating Ranges at Ta = 25°C


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