Ordering number :ENN6209B Monolithic Digital IC LB11985H VCR Capstan Motor Brushless Motor Driver Functions Package Dimensions • Three-phase current linear drive with switching between full-wave and half-wave operations • Torque ripple correction circuit • Current limiter circuit • Upper and lower sides output stage saturation prevention circuits • Short brake circuit • FG amplifier • Thermal shutdown circuit unit: mm 3233-HSOP28H [LB11985H] 15.3 10.5 15 7.9 4.9 28 0.65 6.2 2.7 1 14 0.25 0.3 1.3 0.8 2.5max 2.25 0.85 0.1 Specifications SANYO: HSOP28H Absolute Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol Conditions Ratings VCCmax Unit 6 V VSmax 15.5 V Maximum output current IOmax 1.5 A Maximum output voltage VOmax Allowable power dissipation Pdmax Independent IC 76.1 × 114.3 × 1.6 mm3: With glass epoxy 30 V 0.8 W 2.0 W Operating temperature Topr –20 to +75 °C Storage temperature Tstg –55 to +150 °C Allowable Operating Ranges at Ta = 25°C Parameter Symbol Conditions Ratings 8 to 15 VS Supply voltage VCC Hall input amplitude GSENSE input range VHALL VGSENSE 4.5 to 5.5 Between Hall inputs With respect to the control system ground ±20 to ±100 –0.20 to +0.20 Unit V mV 0-P V Note : Forward/reverse switching is not possible in half-wave operation mode. 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 12800RM (OT) No. 6209-1/9 LB11985H Electrical Characteristics at Ta = 25°C, VCC = 5 V, VS = 15 V Parameter VCC current drain Symbol Conditions Ratings min typ Unit max RL = ∞, VCTL = 0 V (quiescent mode) 10 15 mA VOsat1 IO = 500 mA, Rf = 0.5 Ω, Sink + Source VCTL = VLIM = 5 V (with saturation prevention) 2.2 2.7 V VOsat2 IO = 1.0 A, Rf = 0.5 Ω, Sink + Source VCTL = VLIM = 5 V (with saturation prevention) 2.8 3.7 V 1.0 mA ICC [Output] Output saturation voltage Output leakage current IOleak [FR] FR pin input Threshold voltage VFR FR pin input Input bias current Ib (FR) 1 VFR = 5 V 4 V 150 µA 4 V 100 150 µA 2.15 2.3 V 4 V 5 µA 100 [BR] BR pin input Threshold voltage VBRTH BR pin input Input bias current Ib (BR) 1 VBR = 5 V [Control] CTLREF pin voltage VCREF CTLREF pin input range VCREF IN CTL pin input bias current Ib (CTL) 2.0 1 VCTL = 5 V, with CTLREF open CTL pin control start voltage VCTL (ST) Rf = 0.5 Ω, VLIM = 5 V, Io ≥ 40 mA With the Hall input logic states fixed (U, V, W = high, high, low) CTL pin control Gm Gm (CTL) Rf = 0.5 Ω, ∆Io = 200 mA With the Hall input logic states fixed (U, V, W = high, high, low) 1.8 2.25 2.7 V Voff (LIM) Rf = 0.5 Ω, VCTL = 5 V, Io ≥ 40 mA With the Hall input logic states fixed (U, V, W = high, high, low) 80 200 320 mV VCTL = 5 V,VREF: OPEN, VLIM = 0 V –2 –1 0.37 0.47 0.57 mA +6 mV 1.0 3.0 µA 3.3 V 2.0 2.2 2.4 V [Current Limiter] LIM current limit offset voltage LIM pin input bias current LIM pin current limit level Ib (LIM) Gm (LIM) Rf = 0.5 Ω, VCTL = 5 V With the Hall input logic states fixed (U, V, W = high, high, low) µA [Hall Amplifier] Input offset voltage Input bias current Common-mode input voltage Torque ripple correction ratio Voff (HALL) –6 Ib (HALL) Vcm (HALL) TRC 1.3 At the bottom and peak that occur in the Rf waveform at 200 mA (Rf = 0.5 Ω) 14.5 % [FG Amplifier] FG amplifier input offset voltage Voff (FG) FG amplifier input bias current Ib (FG) FG amplifier output saturation voltage VOsat (FG) FG amplifier common-mode input voltage VCM (FG) –8 +8 –100 For the sink side, at the internal pull-up resistor mV nA 0.4 1.0 0.55 V 4.0 V [Saturation] Saturation prevention circuit lower side set voltage VOsat (DET) Io = 10 mA, Rf = 0.5 Ω, VCTL = VLIM = 5 V The voltages between the OUT-Rf pairs at full wave. 0.13 0.25 0.42 V 49 50 51 % 0.2 V [Schmitt Amplifier] Duty DUTY Upper side output saturation voltage Vsatu (SH) Lower side output saturation voltage Vsatd (SH) Hysteresis TSD operating temperature TSD hysteresis 60 mVp-p, 1 kHz input *1 4.8 V Vhys Design target values *2 45 T-TSD Design target values *2 180 °C ∆T-TSD Design target values *2 15 °C mV Note *1 : The ratings are just the measured value with no margin afforded. *2 : Items shown to be design target values in the conditions column are not measured. No. 6209-2/9 LB11985H Truth Table and Control Functions Source → Sink 1 2 3 4 5 6 V→W W→V U→W W→U U→V V→U W→V V→W W→U U→W V→U U→V Note: 1. In the FR column, “H” indicates a voltage of 2.75 V or higher, and “L” indicates a voltage of 2.25 V or lower. (When VCC is 5 V.) Hall input U V W H H L H L L H L L L L H L H H H H L FR H 2. For the Hall inputs, the input high state is defined to be the state where the (+) input is higher than the corresponding (–) input by at least 0.02 V, and the input low state is defined to be the state where the (+) input is lower than the corresponding (–) input by at least 0.02 V. L H L H L H L H L H L Allowable Power Dissipation Pd max — Ta Allowable power dissipation, Pd [W] 2.4 Mounted on the specified printed circuit board (76.1 × 114.3 × 1.6 mm3 glass epoxy board) 2.0 1.6 1.20 1.2 Independent IC 0.8 0.48 0.4 0 –20 0 20 40 60 80 100 Ambient temperature, Ta [°C] No. 6209-3/9 GSENSE RF(SENSE) RF(POWER) UOUT VOUT 25 24 23 22 ADJ FR CTL LIM CTLREF FC 1 2 3 4 5 6 7 FGOUT FGIN– FGIN+ UIN– WIN– VIN+ VIN– UIN+ 21 20 19 18 17 16 8 9 10 11 12 13 14 HSOP-28H BR LB11985H WIN+ MR 7 SL 6 UOUT VOUT CTLREF FC SL BR FGOUT FGIN– FGIN+ UIN– 20 19 18 17 16 15 8 9 10 11 12 13 14 MCOM WIN+ WIN– VIN+ VIN– UIN+ HSOP-28H FGS LB11985H 21 WOUT FRAME GND LIM 22 MCOM 5 RF(POWER) CTL 23 FRAME GND 4 RF(SENSE) FR 24 FGS 3 GSENSE ADJ 25 WOUT 2 VS2 VCC 26 GND 1 VS1 27 GND 26 FRAME 27 VCC 28 VCC VS2 28 FRAME VS1 LB11985H Pin Assignment Top view Sample Application Circuit 15 A12221 No. 6209-4/9 VCC BR Reference voltage Bandgap 1.2V Synthesized output logarithmic compression block GND TSD Short braking RF(SENSE) Feedback amplifier Differential distribution and torque ripple correction block FGIN+ FGIN– FGOUT 150 kΩ 5 kΩ FG amplifier Schmitt amplifier Drive distribution circuit and lower side saturation prevention control Upper side saturation prevention control Full-wave/half-wave switching GSENSE LIM Control amplifier Logarithmic conversion and differential distribution ADJ CTL Forward/ reverse switching Hall input synthesis block (linear matrix) CTLREF FR WIN– WIN+ VIN– VIN+ UIN– UIN+ FC FGS 5 kΩ SL MCOM RF(PWR) WOUT VOUT UOUT VS1 VS2 LB11985H Block Diagram No. 6209-5/9 LB11985H Pin Functions Pin No. Symbol Unit (resistance : Ω ) Pin Voltage Description Ground for circuits other than the output transistors. The lowest potential of the output transistors will be the that of the RF pin. FRAME GND 1 VS1 2 VS2 A diode is internally connected between VS1 and this pin to prevent reverse current flow in half-wave operating mode. GSENSE Ground sensing. The influence of the common ground impedance on Rf can be excluded by connecting this pin to the ground near the Rf resistor in the motor ground lines that include RF. (This pin must not be left open.) 4 5 RF(SENSE) RF(POWER) Output current detection. Current feedback is applied to the control block by inserting the resistor Rf between these pins and ground. Also, both the lower side saturation prevention circuit and the torque ripple correction circuit operate according to the voltage on this pin. In particular, since this voltage sets the oversaturation prevention level, the lower side oversaturation prevention operation can be degraded if the value of this resistor is set too low. Note that the POWER pin and the SENSE pin must be connected together. 6 UOUT 3 Equivalent circuit 8 V to 15 V Output block power supply 1 2 VOUT Coil output 20 Ω 50 kΩ 20 Ω 8 50 kΩ WOUT 10 kΩ 10 kΩ 7 6 7 8 5 A13015 VS1 9 MCOM Motor midpoint connection. Half-wave drive is implemented by connecting the motor midpoint to this pin. 9 A13016 Continued on next page. No. 6209-6/9 LB11985H Unit (resistance : Ω, current : A ) Continued from preceding page. Pin No. Symbol 10 WIN+ 11 WIN– 12 VIN+ 13 VIN– 14 UIN+ 15 UIN– Pin Voltage Description Equivalent circuit VCC W phase Hall element input. Logic “H” is defined as the state where WIN+ > WIN–. 10 V phase Hall element input. 1.3 V to 3.3 V Logic “H” is defined as the state where (VCC = 5 V) VIN+ > VIN–. 11 300 Ω 12 300 Ω 13 14 15 100 µA U phase Hall element input. Logic “H” is defined as the state where UIN+ > UIN–. A13017 VCC 16 FG amplifier + input. This is the + input to the Schmitt amplifier. There is no bias applied internally. FGIN+ 6 µA 150 kΩ 5 kΩ 300 Ω 17 FG amplifier – input. The input resistance is 5 kW and a 150 kW feedback resistor is built in. (The gain is 30×.) FGIN– 300 Ω 17 16 A13018 VCC 50 µA FG amplifier linear output. 300 Ω FGOUT 2 kΩ 18 100 Ω 18 300 Ω 50 µA A13019 0 V to VCC 20 SL 45 kΩ 19 20 Full-wave/half-wave control input. High: Half-wave drive Low: Full-wave drive 15 kΩ BR VCC 15 kΩ 19 Short braking control input. High: Short braking Low: Normal motor drive 21 FGS 5 kΩ 20 kΩ A13020 VCC 21 FG Schmitt amplifier output. A13021 Continued on next page. No. 6209-7/9 LB11985H Unit (resistance : Ω, current : A ) Continued from preceding page. Pin No. Symbol Pin Voltage Description Equivalent circuit VCC 22 Frequency characteristics correction. Oscillation in the current control system closed loop can be prevented by inserting a capacitor between this pin and ground. FC 22 6S A13022 VCC CTLREF 1 V to 4 V (VCC = 5 V) 20 kΩ 23 Control reference voltage. Although this voltage is set to V CC × (15/35) internally, it can be modified by applying a voltage from a low-impedance circuit. 300 Ω CTL 0 V to VCC 18 kΩ 23 25 15 kΩ 25 Speed control. Control consists of a constant current drive scheme implemented by applying current feedback from RF. 300 Ω 50 µA 50 µA A13023 VCC LIM 0 V to VCC Current limiter function control. The voltage applied to this pin modifies the output current linearly. 1 kΩ 20 kΩ 24 60 kΩ 24 A13024 VCC 45 kΩ 0 V to VCC Forward/reverse control. The voltage applied to this pin selects forward or reverse operation. 15 kΩ FR 15 kΩ 26 26 A13025 10 kΩ 6 kΩ 500 Ω 27 6 kΩ 10 kΩ ADJ 10 kΩ 27 10 kΩ VCC External torque ripple correction ratio adjustment. To adjust the correction ratio, apply the stipulated voltage to the ADJ pin from a low-impedance external circuit. If the applied voltage is increased, the correction ratio rises, and if the applied voltage is lowered, the correction ratio falls. A13026 28 VCC Power supply for all circuits other than the IC internal output block. 4.5 V to 5.5 V This voltage must be stabilized so that ripple and noise do not enter the IC. No. 6209-8/9 LB11985H 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 January, 2000. Specifications and information herein are subject to change without notice. PS No.6209-9/9