Monolithic Digital LB1862M Single-Phase Full-Wave Driver Mot

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Monolithic Digital LB1862M Single-Phase Full-Wave Driver Mot

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Ordering number EN5657
Monolithic Digital
LB1862M
Single-Phase Full-Wave Driver Motors
Overview
LB1862M single-phase full-wave driver provided miniature package that optimal driving miniature fans such cooling fans. provides motor drive with switching noise high efficiency.
Package Dimensions
unit: 3086A-MFP10S
[LB1862M]
Functions
Supports both 12-V power supplies. Allows reverse connection prevention diodes including regeneration circuit chip. On-chip Hall amplifier with hysteresis characteristics (Supports commutator-free cores.) Lock protection automatic recovery circuits Lock detection (Latch type Low: drive, High: stopped) Supports current drain standby mode providing Hall bias start/stop pin. Thermal shutdown circuit
SANYO: MFP10S
Specifications
Absolute Maximum Ratings 25°C
Parameter Supply voltage Output current Output voltage output voltage output current output current input voltage Allowable power dissipation Operating temperature Storage temperature Symbol IOUT VOUT Topr Tstg When mounted specified board Conditions Ratings +150 Unit
Note: Specified board: 114.3 76.2 epoxy glass laminate board
Allowable Operating Ranges 25°C
Parameter Supply voltage input high-level voltage input low-level voltage Hall input common-mode input voltage range Symbol VICM Conditions Ratings 16.8 -0.3 +0.4 -1.5 Unit
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, JAPAN
73097HA(OT) 5657-1/6
LB1862M Electrical Characteristics 25°C,
Parameter Symbol Conditions During drive operation low, low) Current drain ICT1 ICT2 VCT1 VCT2 IRDL VHBL Zero peak value (Including offset hysteresis.) ICT1/ICT2 During lock protection high, low) Standby mode high) Lock detection capacitor charge current Capacitor discharge current Capacitor charge/discharge current ratio charge voltage discharge voltage Output low-level voltage Output high-level voltage Hall input sensitivity output low-level voltage output leakage current output low-level voltage input current 0.32 2.55 Ratings 0.46 2.75 0.60 2.95 Unit
Truth Table
OUT1 OUT2 Drive Lock protection Mode Standby
output latch-type output; Low: drive, High: stopped
Assignment
view
5657-2/6
LB1862M Block Diagram
Charge/discharge circuit 0.47
Discharge pulse
Delay circuit Control circuit
Amplifier with hysteresis
Delay circuit
Thermal shutdown circuit
Start/stop
Sample Application Circuit
0.47
5657-3/6
LB1862M Startup
Power applied
Lock Protection/Automatic Recovery
Lock Output Lock cleared
Output
Output
Start/Stop
Output
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LB1862M Design Notes This provides power motor drive control circuits. LB1862M supports wide range operating voltages, from 16.8 thus used applications that support both 12-V systems. OUT1 OUT2 pins Single-phase coil outputs. output high side inverted, side single bipolar output. Since regeneration circuit included chip, kickback current regenerated across side output even diode used protect circuit against being destroyed reversed polarity connection. pins Hall element inputs. Hall signal amplified square wave Hall amplifier, which hysteresis characteristics. hysteresis ±3.5 (typical) applied. Hall input signal amplitude higher recommended. capacitor connected between this ground forms protection circuit that prevents coil burnout motor locks. motor load returns appropriate level, automatic recovery circuit will restart motor rotation. lock detection time changing value capacitor. 0.47 capacitor used: Lock detection time: About second Lock protection time/automatic recovery time: About 0.16 second (output About second (output off) This should tied ground lock protection function used. This open collector output that while motor turning high impedance when locked state detected. This latch type output that holds output high-impedance state motor rotation restarted automatic recovery circuit. pins pin: Stops motor drive when high level input. When high, output will high-impedance state indicating lock protection mode. pin: Switches Hall bias. When high level input pin, applications should switch Hall bias suppress standby mode current drain. Both these pins should left open unused. Thermal shutdown circuit This circuit protects limiting output current internal temperature reaches 180°C.
5657-5/6
LB1862M
Allowable power dissipation, Pdmax
Ambient temperature,
Current drain,
Supply voltage,
side saturation output voltage, VO(sat)L
Output current,
Input current,
Supply voltage,
VRD, IRD,
High side saturation output voltage, VO(sat)H
Output current,
VRD,
IRD,
products described contained herein intended surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment like, failure which directly indirectly cause injury, death property loss. Anyone purchasing products described contained herein above-mentioned shall: Accept full responsibility indemnify defend SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees, jointly severally, against claims litigation damages, cost expenses associated with such use: impose responsibility fault negligence which cited such claim litigation SANYO ELECTRIC CO., LTD., affiliates, subsidiaries distributors their officers employees jointly severally. Information (including circuit diagrams circuit parameters) herein example only; guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties. This catalog provides information July, 1997. Specifications information herein subject change without notice. 5657-6/6

Monolithic Digital LB1862M Single-Phase Full-Wave Driver Mot

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