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Part: LB1657M
Category:
Interface and Interconnect
Description: 2-phase Stepping Motor Drive
Company: Sanyo Semiconductor Corporation
Datasheet: Download LB1657M datasheet File size : 123 kB
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Datasheet text preview:
Ordering number:EN3664A
Monolithic Digital IC
LB1657M
2-Phase Stepping Motor Driver
Overview
The LB1657M is a dual bridge driver IC suited for use in 2-phase bipolar stepping motor driver for FDD (3 to 5.25 inches) head actuator. The maximum driver current×voltage is 0.33A×12V/ bridge.
Package Dimensions
unit:mm 3097-MFP16FS
[LB1657M]
Features
· Power save function. · ø1, ø2 direction inputs are used to make driver output selection. · Low saturation voltage. · Low current drain. · Direct controllable from MPU due to low input current. · Input level : TTL, LSTTL, 5V CMOS compatible. · On-chip thermal shutdown (TSD) circuit.
SANYO : DMFP16FS
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter Logic section supply voltage Seeking supply voltage Input voltage Peak seeking current Continuous seeking current Allowable power dissipation Operating temperature Storage temperature Symbol VCC VS VIN IO peak IOS Pd max Topr Tstg t5ms Conditions Ratings 7 15 0 to VCC 500 330 0.9 20 to 70 55 to +125 Unit V V V mA mA W
°C °C
Allowable Operating Conditions at Ta = 25°C
Parameter Logic section supply voltage Seeking supply voltage Symbol VCC VS Conditions Ratings min 4.5 10.2 typ 5.0 12.0 max 5.5 13.8 Unit V 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)/5231TS (KOTO)/5310TA (KOTO) No.3664-1/4
LB1657M
Electrical Characteristics at Ta = 25°C, VCC=5V, VS2=5V, VS1=12V
Parameter Input low-level voltage Input high-level voltage Input low-level current Input high-level current Current drain Symbol VIL VIH IIL IIH ICL ISL ICH ISH Output transistor voltage VS1 saturation voltage Clamp voltage Delay time TSD operating temperature TSD hysteresis VCER Vsat VF tPLH tPHL TSD T VI=0.8V VI=2V VI=5V STB=0.8V, VCC STB=0.8V, VS, Note1 STB=2.0V, VCC STB=2.0V, VS, Note1 IC=10mA SB=0.8V, IO=330mA, Note2 IF=330mA, upper IF=330mA, lower 18 1.5 3 1.5 4 2 150 25 2.0 Conditions Ratings min 2.0 10 6 0.55 25 25 5 +10 10 1.0 33 1 33 10 typ max 0.8 Unit V V µA µA mA mA mA mA mA V V V V µs µs °C °C
Note : 1. Measure sum of currents at pins 4 and 13. 2. Measure sum of saturation voltages at upper and lower level.
Equivalent Circuit Block Diagram
The ø1, ø2 direction inputs are used to make driver output selection and the power save input is used to select the driver source output from between 0V supply and 12V supply.
No.3664-2/4
LB1657M
Pin Assignment Specified board
(Top view)
Sample Application Circuit : 2-phase bipolar stepping motor driver.
Note : Keep the tarminal to short 4 and 13
Timing Chart
No.3664-3/4
Others parts begin by lb
LB-1 LB-2 LB-3 LB-4 LB-5 LB-6
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