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LB1845 Datasheet

  • LB1845

  • PWM Current Control Stepping Motor Driver

  • 138.55KB

  • 7頁

  • SANYO

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Ordering number: EN5505B
Monolithic Digital IC
LB1845
PWM Current Control Stepping Motor Driver
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.
Package Dimensions
unit: mm
3147A-DIP28H
[LB1845]
Features
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
PWM current control (fixed off time scheme)
Digital load current selection function
Sustained output voltage: 45 V
Built-in thermal shutdown circuit
SANYO: DIP28H
Specifications
Absolute Maximum Ratings
at Ta = 25擄C
Parameter
Motor supply voltage
Peak output current
Continuous output current
Logic block supply voltage
Logic input voltage range
Emitter output voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
V
BB
I
OPEAK
I
OMAX
V
CC
V
IN
V
E
Pd max1
Pd max2
Topr
Tstg
Independent IC
With an arbitrarily large heat sink
t
W
= 20 碌S
Conditions
Ratings
45
1.75
1.5
7.0
鈥?.3 to V
CC
1.0
3.0
20.0
鈥?0 to +85
鈥?5 to +150
Unit
V
A
A
V
V
V
W
W
擄C
擄C
Recommended Operating Ranges
at Ta = 25擄C
Parameter
Motor supply voltage
Logic block supply voltage
Reference voltage
Symbol
V
BB
V
CC
V
REF
Conditions
Ratings
10 to 44.5
4.75 to 5.25
1.5 to 7.5
Unit
V
V
V
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
D3096HA (OT) No. 5505-1/7

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