LB1947VC Datasheet, PDF (1/11 Pages) Sanyo Semicon Device – Monolithic Digital IC PWM Current Control Type Forward/Reverse Motor Driver

Ordering number : ENA2035
LB1947VC
Monolithic Digital IC
PWM Current Control Type
Forward/Reverse Motor Driver
Overview
The LB1947VC is a PWM current control type forward/reverse motor driver IC. The IC is optimal for use in driving
brushed DC motors for printers.
Features
• PWM current control (fixed OFF time)
• Selectable current decay pattern (FAST, SLOW, and MIX DECAY modes)
• Simultaneous ON prevention function (feed-through current prevention)
• Built-in thermal shutdown circuit
• Built-in noise canceler
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum motor supply voltage
Output peak current
Output continuous current
Logic supply voltage
Logic input voltage range
Emitter output voltage
Reference voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VBB max
IO peak
IO max
VCC max
VIN
VE max
VREF
Pd max
Topr
Tstg
tw ≤ 20μs
Conditions
Independent IC
Ratings
Unit
50
V
2.25
A
2.0
A
7.0
V
-0.3 to VCC
V
1.1
V
-0.3 to VCC
V
1.3
W
-20 to +85
°C
-55 to +150
°C
Caution 1) Absolute maximum ratings represent the value which cannot be exceeded for any length of time.
Caution 2) Even when the device is used within the range of absolute maximum ratings, as a result of continuous usage under high temperature, high current, high
voltage, or drastic temperature change, the reliability of the IC may be degraded. Please contact us for the further details.
Any and all SANYO Semiconductor Co.,Ltd. products described or contained herein are, with regard to
"standard application", intended for the use as general electronics equipment. The products mentioned herein
shall not be intended for use for any "special application" (medical equipment whose purpose is to sustain life,
aerospace instrument, nuclear control device, burning appliances, transportation machine, traffic signal system,
safety equipment etc.) that shall require extremely high level of reliability and can directly threaten human lives
in case of failure or malfunction of the product or may cause harm to human bodies, nor shall they grant any
guarantee thereof. If you should intend to use our products for new introduction or other application different
from current conditions on the usage of automotive device, communication device, office equipment, industrial
equipment etc. , please consult with us about usage condition (temperature, operation time etc.) prior to the
intended use. If there is no consultation or inquiry before the intended use, our customer shall be solely
responsible for the use.
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.
32112 SY 20120312-S00003 No.A2035-1/11