LB1845 Datasheet, PDF (1/9 Pages) Sanyo Semicon Device – PWM Current Control Stepping Motor Driver

Ordering number : EN5505D
LB1845
Monolithic Digital IC
PWM Current Controlling
Stepping Motor Driver
http://onsemi.com
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: 45V
• Built-in thermal shutdown circuit
Specifications
Absolute Maximum Ratings at Ta = 25°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
VBB max
IO peak
IO max
VCC
VIN
VE
Pd max1
Pd max2
Topr
Tstg
Conditions
tW ≤ 20μs
Independent IC
With an arbitrarily large heat sink
Ratings
Unit
45
V
1.75
A
1.5
A
7.0
V
-0.3 to VCC
V
1.0
V
3.0
W
20.0
W
-20 to +85
°C
-55 to +150
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Semiconductor Components Industries, LLC, 2013
June, 2013
O1806 MS IM / D3096HA (OT) No.5505-1/9