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Ordering number :ENN6210A
Monolithic Digital IC
LB1989
Three-Phase Sensorless VCR Drum Motor Driver
Functions and Features
* * * * * * Soft switching drive No Hall sensors required. No FG sensors required. Built-in PG amplifier Thermal shutdown circuit Current limiter circuit
Package Dimensions
unit: mm 3222-HSOP28
[LB1989]
28 15
1.0 5.6 0.2 0.1 1.8max
1
0.8 2.7 0.3
14
15.2
0.8
SANYO: HSOP28
Specifications
Absolute Maximum Ratings at Ta = 25C
Parameter Maximum supply voltage Maximum output voltage Maximum input voltage Maximum cylinder current Allowable power dissipation Operating temperature Storage temperature Symbol VCCmax VOmax VI1max IOmax Pdmax Topr Tstg Independent IC Conditions Ratings 14.5 14.5 -0.3 to VCC1 + 0.3 1.0 0.6 -20 to +75 -55 to +150 Unit V V V A W C C
Allowable Operating Ranges at Ta = 25C
Parameter Supply voltage Symbol VCC Conditions Ratings 8 to 13.8 Unit V
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any 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 parameters) listed in products specifications of any and all SANYO products described or contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
D2499RM (OT) No. 6210-1/9
0.5
7.6
LB1989 Electrical Characteristics at Ta = 25C, VCC = 12 V
Parameter Current drain Internal power supply Output saturation voltage 1 Output saturation voltage 2 MC pin common-mode input voltage range VC pin input bias current Control start voltage Closed-loop control gain PCOUT output current 1 PCOUT output current 2 VCOIN input current Minimum VCO frequency Maximum VCO frequency C1/C2 source current ratio C1/C2 sink current ratio C1 source/sink current ratio C2 source/sink current ratio S/S pin high level voltage S/S pin low level voltage S/S pin input current Thermal shutdown circuit operating temperature Thermal shutdown circuit hysteresis [FG/PG Amplifier Block] Back EMF FG Output on voltage Output off voltage PG amplifier Input offset voltage Input bias current Common-mode input voltage range Open-loop gain Output on voltage Output off voltage Schmitt amplifier hysteresis VIO IBIN- VICOM GVPG VOL VOH VSHIS VREG - 0.5 70 93 115 f = 1 kHz -8 - 250 0 55 0.4 VREG- 1.5 +8 mV nA V dB V V mV 23 24 VOL VOH VREG - 0.5 0.4 V V 21 22 Symbol ICC VREG VOSAT1 VOU2 VIC IVC VTHVC GMVC IPCOU IPCOD IVCOIN fVCOMIN fVCOMAX RSOURCE RSINK RC1 RC2 VSSH VSSL ISSI TTSD TTSD VS/S = 5 V 150 180 15 RF = 0.5 Source side Sink side VCOIN = 5 V Cx = 0.022 F, With VCOIN open Cx = 0.022 F, VCOIN = 5 V IC1SOURCE / IC2SOURCE IC1SINK / IC2SINK IC1SOURCE / IC1SINK IC2SOURCE / IC2SINK -12 -12 -35 -35 4 0.7 200 210 VC = 0 V VC = 0 V VC = 0 V IO = 0.4 A, Source + Sink IO = 0.8 A, RF = 0 , Source + Sink 0 -2 2.3 0.75 -1 2.55 0.95 -90 90 0.1 400 18.5 +12 +12 +15 +15 0.2 2.8 1.15 4.6 Conditions Ratings min typ 15 5.0 1.4 1.8 max 20 5.4 2.0 2.6 VCC - 2 Unit mA V V V V A V A/V A A A Hz kHz % % % % V V A C C Test circuit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
* *
*
25 26 27 28
Note * : These are design target values and are not measured.
No. 6210-2/9
LB1989 Pin Assignment
LB1989
No. 6210-3/9
VREG VCC
BFGO
MCOM
Rotor position detection circuit
Thermal shutdown circuit
UIN VIN WIN
Mask circuit
Startup control circuit Soft switching drive circuit
Timing control circuit
2200 pF
C1
C2
Output drive circuit
2200 pF
UOUT VOUT WOUT 0 to 0.01 F x 3
LB1989
PLL
VCO
Divide-by-8 circuit
560 k
PCOUT
VCOIN 200
Upper side saturation prevention control
0.47 F
CX RF GND 0.5
0.01 F
VC
200
0. 1 F VREG 10 k
Block Diagram (Note that the external constants will vary depending on the motor used.)
FC
200
1.2 V reference voltage
200 PGOUT2
200 S/S
No. 6210-4/9
PGI N+
PGIN-
PGOUT1
LB1989 Pin Functions
Pin No. 27 Pin UOUT Pin voltage Equivalent circuit Function
1
VOUT
Drum motor driver outputs
2
WOUT
26
RF
The lowest potential of the drum motor driver output transistors. Constant-current control is implemented by detecting this voltage. The current limiter also operates by detecting this voltage.
Driver start/stop control 26 S/S High: Motor drives operating state Low: Standby state (power saving mode)
7
VCC
8 to 13.8 V
Power supply Motor coil center input
5
MCOM
The coil voltage waveform is detected referenced to this voltage.
8
UIN
Coil waveform detection comparator inputs 9 VIN Each phase output is connected through an internal 10 k resistor.
10
WIN
11
C1
Sawtooth waveform generator capacitor connection This sawtooth waveform is used for soft switching in the coil output waveform. 12 C2
Continued on next page.
No. 6210-5/9
LB1989
Continued from preceding page.
Pin No. Pin Pin voltage Equivalent circuit Function
13
CX
The value of the capacitor connected between this pin and ground determines the operating frequency range and the minimum operating frequency for the VCO circuit.
VCO circuit voltage input 14 VCOIN The PCOUT pin voltage is RC filtered and the result is input to this pin.
15
PCOUT
VCO circuit PLL output
16
GND
Ground for all circuits other than the output transistor
Internal 5 V regulator 17 VREG This pin provides the control system power.
Continued on next page.
No. 6210-6/9
LB1989
Continued from preceding page.
Pin No. Pin Pin voltage Equivalent circuit Function
18
PGIN+
PG amplifier positive (+) input This pin is biased internally by 1/2 VREG.
19
PGIN-
PG amplifier negative (-) input
20
PGOUT1
PG amplifier linear output
21
PGOUT2
PG Schmitt amplifier output
22
BFGO
Motor back EMF detection FG output (synthesized from 3 phases)
Continued on next page.
No. 6210-7/9
LB1989
Continued from preceding page.
Pin No. Pin Pin voltage Equivalent circuit Function
Frequency characteristics correction 23 FC Current control system closed loop oscillation can be stopped by inserting a capacitor between this pin and ground.
Speed control 24 VC 0 to VCC This IC implements constant-current control by applying feedback from RF.
Allowable Internal Power Dissipation
Allowable internal power dissipation Pd (W)
Independent IC
Ambient temperature Ta (C)
No. 6210-8/9
LB1989
Specifications of any and all SANYO 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. SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. In the event that any or all SANYO products (including technical data, services) described or contained herein are controlled under any of applicable local export control laws and regulations, such products must not be exported without obtaining the export license from the authorities concerned in accordance with the above law. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording, or any information storage or retrieval system, or otherwise, without the prior written permission of SANYO Electric Co., Ltd. Any and all information described or contained herein are subject to change without notice due to product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification" for the SANYO product that you intend to use. Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties.
This catalog provides information as of December, 1999. Specifications and information herein are subject to change without notice. PS No.6210-9/9

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