LB1689M SANYO | Alldatasheet

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Technical content

No.s348 LB1689M SANYO 3-Phase Brushless Motor Driver

Applications

The LB1689M is a 3-phase brushless motor driver IC ideally suited for use in VTR capstan motor, drum motor drive applications, etc. Features and Functions (1) 120° voltage linear type (2) Soft switching type eliminating noises caused by current switching and making the values of : external capacitors smaller (comparable to those of chip capacitors) (3) On-chip FG amplifier (4) On-chip thermal shutdown circuit (5) The FG signal can be used to detect the rotational speed of a motor so that the hall amp gain is changed in two steps, thus reducing torque ripple and noise. Absolute Maximum Ratings at Ta=25°C unit Maximum Supply Voltage Voc max1 20 v Voc max2 7.0 Vv Output Supply Voltage Vourv.w. 22 =v Output Current lout 1.5 A Allowable Power Dissipation Pd max 1.05 WwW Operating Temperature Topr —20to+75 °C Storage Temperature Tstg —55to+125 °C Allowable Operating Conditions at Ta= 25°C unit Supply Voltage Vocl 8.5 to 18 v Voc2 4306.5 V zs Pd max — Ta e (unit: mm ) : || COTS aca 3 Q B02 é 5 & fil | Bel “ Seen niet ianiinieletel < o6 .) 35 76 0 # IH 10 Ob SANYO : MFP30S Ambient Temperature,Ta - °C os SANYO Electric Co.,Ltd. Semiconductor Business Headquarters TOKYO OFFICE.Tokyo Bidg.,1-10,1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN 3060TA,TS No.3348-1/4

Electrical Characteristics at Ta = 25°C, Vecl =12V, Vcc2=5V . min typ max unit (Power Supply] Supply Current 1 locl Vo=0,Rp=” 17 30 mA ; Supply Current 2 loc? Vc=0 65 95 mA {Output} Output Saturation Voltage Vorsatyt Iour=0.5A,sink + source 16 2.2 v Voisay2 lour=1.0A,sink + source 20 30 V Output TRS Voltage Voisus) Tour=20mA (See note.) 20 v Output Quiescent Voltage Vo Vo=0 58 61 64 4V (Hall Input-Output) Hall Amp Input Offset Voltage Vy offset -5 +5 mV HallAmpInputBiasCurrent —_Iq bias 1 5 BA Hall Amp Common-Mode Vy ch 1.3 3.7 v Input Voltage Range Hall Input-Output Voltage Gain Gyjj01 56 dB . GvuHo2 43 dB (Control-Output] Control-Output Voltage Gain Gyco 38 #41 #444 «dB Control-Output Voltage Gain SGvco -2 +2 dB CH Difference (FG Amplifier} FG Amp Input Offset Voltage VFG offset. -8 +8 mV Open Loop Voltage Gain Gvrce f=1kHz 60 dB Source Output Saturation Voltage Vrcou Ip=2mA 3.7 v Sink Output Saturation Voltage Vrcop I9=—2mA 1.3 Vv Common-Mode Signal CHR (See note.) 80 dB Rejection Ratio FG Amp Common-Mode _ Vrecu 0 35 V Input Voltage Range Phase Margin (Seé note.) 30 deg. [Motor Detection] Motor Detection Amp 35 50 65 mV Hysteresis Width » CRPin Threshold Voltage Vor changes from 2.35 2.5 2.65 v LOW to HIGH. [Thermal Shutdown] Thermal Shutdown Temperature ‘T'sp (See note.) 150 180 210 °C Thermal Shutdown Hysteresis ATsp (See note.) 15 °C Note : Values shown are design targets only. No measurements have been taken. No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. : WM Anyone purchasing any products described or contained herein for an above-mentioned use shall ® Accept full responsibility and indemnify and defend SANYO ELECTRIC CO, LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ® Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD, its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. Wi information {including circuit diagrams and circuit parameters) herein is for example only; it is not guarant- eed 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. No.3348-2/4

Equivalent Circuit Block Diagram L81689M sd = Ole = F or 4 3 Fo Po sis220 0. = c 4 047 3 & Gl 8 2 (|) No a 5 € soo) 8[ Pog > <ht [hh BV TSR 1d Forwardire 3 oh se | fomorarevere $a <i Pon] oP fe Bl > i Bl | vce << ia Lg > Unit (resistance: ©, capacitance: F) Pin Assignment wy s yy Fi 2zZZ222 2 ef2e 2222222 ay2i TY ST TT TET 455 view — Mec eh EY 8 5529 22 She 2288828 35 8° 2 Ee Note : All FRAME pins are connected to GND. eee No.3348-3/4

a SSSSSSSSSeSeSeSSSSSSSSSSSSSSSSSSSSSSSSSSsSSSSSSSSSSSSeSSssssesesseseseseesesee Pin Description Un], Uin2 25,26 | U phase hall element input pin. ‘H’ of logic : Vijnl > Vin2 Vin1, Vin2 23,24 | V phase hall element input pin. ‘H’ of logic : Vin1 > Vin2 Win], Win2 21,22 | W phase hall element input pin. ‘H’ of logic: Vin] > Vin2 Uour U phase output pin Vout V phase output pin Wout W phase output pin [ Voot | 3 | Power supply pin for applying output Vec2 Power supply pin for applying voltage to each section other than output section. This voltage must be stabilized to be free from ripple, noise, etc. RE q Output current detect pin. By connecting Rf across this pin and GND . pin, output current is detected as voltage. The result is used to control the overcurrent protection circuit. cD 19 Pin for fetching current (voltage) detected with Rf. To take feedback for Rf, the control-output voltage gain can be reduced. Ground when not in use. Frequency characteristic correction Vo 18 Speed-phase control pin Control is of voltage-controlled type that controls output voltage. Control reference voltage GND GND for other than output Minimum potential of output transistor is at Rf pin. F/RC Forward/reverse control pin By setting this pin to ‘H’ (more than 2.0V)/L’ (less than 0.3V), truth value is changed to perform forward/reverse rotation. FGin-,FGin+ | 9,10 [FG signal input pin FG amp output pin CR 12 This pin voltage can be used to change the hall input-output gain. Connection of an external resistor and capacitor makes it possible to detect the rotational speed of a motor and change the hall input-output voltage gain in two steps. Truth Table PP wee ee | mt i H_: Each phase input 1 is more than Sink FRC 0.2V higher than each phase

1 L L: Each phase input 1 is more than

H L L Forward/reverse control : a phase phase | L a phase Phase | L L H ee No.3348-4/4