LB11880

Ordering number : ENN6470 Monolithic Digital IC LB11880 Three-Phase Sensorless Motor Driver with Loading Motor Driver Overview The LB11880 is a sensorless motor driver that also includes a loading motor driver. It is ideal for drum motor drive in VCR products. Package Dimensions unit: mm 3196A-DIP30SD [LB11880] 27.0 Functions and Features • • • • • • • Soft switching drive No Hall sensors required No FG sensors required Built-in PG amplifier Built-in thermal shutdown circuit Current limiter circuit On-chip loading motor driver 30 16 0.95 3.0 3.95mas (3.25) 0.51min 0.48 (1.04) 1.78 SANYO: DIP30SD Specifications Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage 1 Maximum supply voltage 2 Maximum supply voltage 3 Output voltage Input voltage Cylinder current Loading current Allowable power dissipation Operating temperature Storage temperature Symbol VCC max VCCL max VREG max Vomax VI1max Iomax Iomax (AVE) Iomax (peak) Pdmax Topr Tstg When mounted on the specified printed circuit board* Conditions Ratings 14.5 14.5 7.0 14.5 –0.3 to VREG + 0.3 1.0 0.4 1.2 2.8 –20 to +75 –55 to +150 Unit V V V V V A A A W °C °C Note: * Specified printed circuit board: 114.3 × 76.1 × 1.6 mm glass-epoxy board 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 52600RM (OT) No. 6470-1/9 0.25 1 15 10.16 8.6 LB11880 Allowable Operating Ranges at Ta = 25°C Parameter Supply voltage 1 Supply voltage 2 Supply voltage 3 Symbol VCC VCCL VREG Conditions Ratings 8 to 13.8 8 to 13.8 4 to 6 Unit V V V Electrical Characteristics at Ta = 25°C, VCC = VCCL = 12 V, VREG = 5 V Parameter Supply current 1 Supply current 2 Supply current 3 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 Thermal shutdown operating temperature Thermal shutdown hysteresis Symbol ICC ICCL IREG VOsat1 VOsat2 VIC IVC VTHVC GMVC IPCOU IPCOD IVCOIN fVCOMIN VC = 0 V VRF = 10 mA RF = 0.5 Ω Source side Sink side VCOIN = 5 V CX = 0.022 µF, VCOIN = open –12 –12 –35 –35 150 180 15 Conditions VC = 0 V, XIN = YIN = 0 V VC = 0 V, XIN = YIN = 0 V VC = 0 V, XIN = YIN = 0 V IO = 0.4 A, source + sink IO = 0.8 A, source + sink 0 –2 2.4 0.75 –1 2.5 0.95 –90 90 0.1 400 18.5 +12 +12 +15 +15 210 0.2 2.6 1.15 10 1.4 1.8 Ratings min typ 3.5 max 5.0 1 15 2.0 2.6 VCC – 2 Unit mA mA mA V V V µA V A/V µA µA µA Hz kHz % % % % °C °C fVCOMAX CX = 0.022 µF, VCOIN = 5 V RSOURCE IC1SOURCE/IC2SOURCE RSINK RC1 RC2 T-TSD ∆TTSD IC1SINK/IC2SINK IC1SOURCE/IC1SINK IC2SOURCE/IC2SINK * * Note: * These values are design guarantee values, and are not tested. FG/PG Amplifier Block at Ta = 25°C, VCC = VCCL = 12 V, VREG = 5 V Parameter [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 VShys 4.5 70 93 115 * f = 1 kHz –8 –250 1 55 0.4 3.5 +8 mV nA V dB V V mV VOL VOH 4.5 0.4 V V Symbol Conditions Ratings min typ max Unit Note: * These values are design guarantee values, and are not tested. No. 6470-2/9 LB11880 Loading Block at Ta = 25°C, VCC = VCCL = 12 V, VREG = 5 V Parameter 1 (high) 2 (low) Symbol VIN1 VIN2 IIN ∆VT Vsat U-1 Vsat L-1 Saturation voltage Vsat U-1’ Vsat L-1’ VsatU-1’’ Upper side residual voltage VsatL-1’’ Output transistor leakage current Upper Lower Uper Lower Iref ILU ILL VFU VFL IF = 0.4 A IF = 0.4 A –5 1.3 1.0 –2 Vref = VS, between the output and VS IO = 0.2 A, CW/CCW mode Vref = VS, between the output and ground IO = 0.2 A, CW/CCW mode Vref = VS, between the output and VS IO = 0.4 A, CW/CCW mode Vref = VS, between the output and ground IO = 0.4 A, CW/CCW mode Vref = 8 V, between the output and ground IO = 0.2 A, CW/CCW mode Vref = 8 V, between the output and ground IO = 0.4 A, CW/CCW mode 7.2 7.2 Sink VIN = 3.5 V Conditions Ratings min 3.5 0 30 0.7 1.5 0.2 1.6 0.3 8.0 8.0 2.1 0.3 2.2 0.5 8.8 8.8 50 50 typ max 5 0.8 50 Unit V V µA V V V V V V V µA µA V V µA Input voltage Input current Input hysteresis Diode forward voltage Control supply current No. 6470-3/9 LB11880 Loading Motor Truth Table Input XIN L H L H YIN L L H H XOUT Off H L L Output YOUT Off L H L Mode Standby Forward Reverse Brake Allowable power dissipation, Pdmax — W Pd max — Ta 4 3 When mounted on the specified printed circuit board (114.3 × 76.1 × 1.6 mm3 glass-epoxy board) 2.80 2 1.68 1 0 –20 0 20 40 60 80 100 Ambient temperature, Ta — °C Pin Assignment FC 1 VC 2 VREG 3 PGIN+ 4 PGIN– 5 PGOUT1 6 PGOUT2 7 BFGO 8 LVCC 9 30 29 28 27 26 25 24 GND PCOUT VCOIN CX C2 C1 WIN VIN UIN VCC RF MCOM WOUT VOUT UOUT LB11880 23 22 21 20 19 18 17 16 VREF 10 XIN 11 YIN 12 XOUT 13 LGND 14 YOUT 15 Top view No. 6470-4/9 VREG VCC BFGO MCOM Rotor position detection circuit UIN VIN WIN Thermal shutdown circuit Mask circuit Soft switching drive circuit Startup control circuit Timing control circuit 2200 pF C1 C2 Output drive circuit 2200 pF UOUT VOUT WOUT 0.022 µF × 3 PLL VCO LB11880 560 kΩ PCOUT Divide-by8 circuit 0.47 µF 1 kΩ VCOIN RF Upper side saturation prevention circuit CX 0.5 Ω GND LVCC 0.022 µF VC 200 Ω 0.1 µF VREG 5 kΩ Block Diagram (Note that the values of the external components depend on the motor used.) FC 200 Ω PGOUT1 PGOUT2 XIN 200 Ω YIN VREF XOUT YOUT PGIN+ PGIN- Output drive circuit LGND No. 6470-5/9 LB11880 Pin Description Pin No. Pin Pin voltage Function Equivalent circuit VREG Frequency characteristics compensation 1 FC Oscillation in the current control system closed loop can be prevented by connecting a capacitor between this pin and ground. 1 kΩ 1 10 kΩ 5 kΩ VREG V CC 50 µA 50 µA 27 kΩ Speed control 2 VC 0 V to VREG This circuit implements constant-current control in which current feedback is applied from the RF system. 2 40 kΩ 200 Ω 24 kΩ Control system power supply 3 VREG 4 V to 6 V This power supply must be stabilized so that ripple and noise do not enter the IC. VREG 4 PGIN+ PG amplifier plus side input This pin is biased to 1/2 VREG internally. 6 µA 6 µA 6 µA 10 kΩ 200 Ω 5 PGIN– PG amplifier minus side input 200 Ω 10 kΩ 5 4 VREG 60 µA 6 38 Ω PG amplifier linear output 30 µA 6 PGOUT1 38 Ω 5 kΩ 4 5 kΩ Continued on next page. No. 6470-6/9 LB11880 Continued from preceding page. Pin No. Pin Pin voltage Function Equivalent circuit V CC 7 PGOUT2 PG Schmitt amplifier output VREG+VF VREG 100 µA 5 kΩ 7 8 BFGO Motor back EMF voltage detection FG output (synthesized from three phases) 8 9 LVCC 8 to 13.8 V Loading motor driver output transistor power supply VCCL 13 15 10 VREF 0 to VCCL Loading motor driver output voltage setting 1 mA 1 mA 30 kΩ 30 kΩ 50 kΩ 10 V REG 11 XIN 11 0 V to VREG Loading motor driver logic input 100 kΩ 50 kΩ 50 kΩ 12 12 YIN 9 13 XOUT 13 Loading motor driver output 15 2 kΩ 15 YOUT 2 kΩ 14 10 14 LGND Loading motor driver output transistor ground Continued on next page. No. 6470-7/9 LB11880 Continued from preceding page. Pin No. 16 17 18 Pin UOUT VOUT WOUT Lowest potential of the drum motor driver output transistor 20 RF This IC implements constant-current control by detecting this voltage. The current limiter also operates by detecting this voltage. Internal reference voltage and power supply for both the drum motor driver output block and the coil waveform detection circuit. Motor coil center input 19 MCOM The coil voltage waveform is detected with this voltage as the reference. Drum motor driver output Pin voltage Function Equivalent circuit V CC 20 µA 3.9 Ω 30 kΩ 3.9 Ω 30 kΩ 20 16 17 18 22 23 24 10 kΩ 21 VCC 8 to 13.8 V VCC 16 17 18 22 10 kΩ 200 Ω 2 kΩ 200 Ω 200 Ω 22 UIN 23 24 Coil waveform detection comparator input Each phase output is connected by an internal 10 kΩ resistor. 19 23 VIN 24 WIN VREG 25 C1 15 µA 15 µA 25 26 5 µA Triangular wave generating capacitor connection This triangular wave is used to implement soft switching in the coil output waveform. 1 kΩ 1/2VREG -VF 26 C2 V REG 100 µA The value of the capacitor connected between this pin and ground determines the operating frequency range and the minimum operating frequency of the VCO circuit. 27 CX 300 Ω 27 Continued on next page. No. 6470-8/9 LB11880 Continued from preceding page. Pin No. Pin Pin voltage Function Equivalent circuit VREG VCO circuit voltage input 28 VCOIN The PCOUT pin voltage is filtered by an RC circuit and input to this pin. 10 kΩ 1.75 V 50 kΩ 28 50 µA 50 µA VREG 29 PCOUT VCO circuit PLL output 29 30 GND Ground for all circuits other than the drum and loading driver output transistors. 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 May, 2000. Specifications and information herein are subject to change without notice. PS No. 6470-9/9