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Part: LB1644
Category:
Interface and Interconnect
Description: Dual Bidirectional Motor Driver
Company: Sanyo Semiconductor Corporation
Datasheet: Download LB1644 datasheet File size : 97 kB
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Datasheet text preview:
Ordering number:EN2576B
Monolithic Digital IC
LB1644
Dual Bidirectional Motor Driver
Overview
The LB1644 is a dual bidirectional motor driver. Since each channel has a 2-input logic circuit and performs bidirectional driving and braking functions, it is capable of direct driving 2pcs. of motor of various types rated at 6 to 24V. The output voltage can be varied by using external zener diodes. It is especially suited for dual motor drive (reel motor, loading motor, cassette motor in VCR) and for stepping motor drive.
Package Dimensions
unit:mm 3054A-DIP16F
[LB1644]
Features
· With power transistors for motor drive contained, capable of withstanding dash current of 1A max. · Performs braking function at the motor stop mode. · Contains elements to absorb motor dash current. · Input interfaceable to MOS LSI. · Minimum number of external parts required. · Wide operating voltage range. · Contains thermal shutdown protector.
SANYO : DIP16F
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter Maximum supply voltage Input voltage Output current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max VIN IOUT Pd max Topr Tstg Conditions Ratings 25 25 ±1 1.44 25 to +65 55 to +125 Unit V V A W
°C °C
Allowable Operating Conditions at Ta = 25°C
Parameter Supply voltage Symbol VCC Conditions Ratings 7 to +25 Unit V
Any and all SANYO products described or contained herein do not have specifications that can handle a p p l i c a t i o n s that require extremely high levels of reliability, s u c h as life-support systems, a i r c r a f t ' s c o n t r o l systems, o r other applications whose failure can be reasonably expected to result in serious p h y s i c a l and/or material damage. Consult with your SANYO representative nearest you before using a n y SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other p a r a m e t e r s ) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
82098HA (KT)/N3093TS/3251TS/6257KI, TS No.2576-1/5
LB1644
Electrical Characteristics at Ta = 25°C
Parameter Current drain Output leakage current Input threshold voltage Output voltage Output tr saturation voltage (upper) Output tr saturation voltage (lower) Symbol ICC1 ICC2 IOL Vth VO Vsat1 Vsat2 Conditions Pin1, Braking mode, RL= Pin9, Braking mode, RL= Braking mode, RL= per output pin RL= RL=60, VZ=7.4V IOUT=300mA IOUT=500mA IOUT=300mA IOUT=500mA 0.9 6.5 Ratings min typ 8.0 7.0 40 1.05 7.2 1.9 2.0 0.3 0.5 max 11.5 10.0 120 1.20 7.5 2.3 2.4 0.55 0.7 Unit mA mA µA V V V V V V
Test Circuits (per channel)
No.2576-2/5
LB1644
Equivalent Circuit Block Diagram
Truth Table of Logic Circuit
Note : A capacitor of 0.01µF or greater must be connected across VCC1, 2 and GND.
INPUT IN1 0 1 0 1 0 1 IN2, 3 0 0 1 1 0 1 IN4 0 0 1 0 1 1 L H L L L L OUTPUT OUT1 OUT2 OUT3 OUT4 L L H L L L L L L H L L L L L L H L Braking Forward/reverse Reverse/forward Braking Braking Braking M1 Braking Braking Braking Forward/reverse Reverse/forward Braking MODE M2
The remaining input states 1, 0, 1 and 0, 1, 0 are not inhibited.
No.2576-3/5
Others parts begin by lb
LB-1 LB-2 LB-3 LB-4 LB-5 LB-6
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