1CH Bi-Directional Motor Drive IC Semiconductor http:// www.auk.co.kr S8082 Description The S8082 is a monolithic integrated circuit designed for driving bi-directional DC motor with braking mode and speed control mode, and it is suitable for the loading motor driver of VCR, CDP, and TOY systems. The speed control can be achieved by adjusting the external voltage of the speed control pin. It was two pins of logic inputs for controlling the forward/reverse and braking. SOP-8 Application ORDERING INFORMATION Product Name Marking Package Name S8082 S8082 SOP8 ◈ VCR Low current DC motor such as audio or video equipment. ◈ CD-Player Compact disk player (CDP) tray or changer ◈ TOY Systems ◈ General DC motor Features and Benefits ▲ Marking Information S8082(①) AUK YYWW(②) ① Device Code ② Year & Week Code ◈ Built-in brake function for stable brake characteristics. ◈ Built-in element to absorb a surge current derived from changing motor direction and braking motor drive. ◈ Motor speed direction change. ◈ Stable motor direction change. ◈ Interfaces with CMOS devices. ◈ Built-in the thermal shut down circuit (175℃) ◈ Low standby current (6.5mA) ◈ Wide operating supply voltage range ( 4.3V ~ 13.2V ) KSD-I7F014-003 SEPT., 2010 REV. 03 1 1ch Bi-directional Motor Driver S8082 ◈ Internal Block Diagram & Pin Assignment GND 1 VO1 8 DRIVER OUT 2 VO2 7 PVCC PRE DRIVER VCTL 3 TSD VIN1 4 LOGIC SWITCH BIAS 6 SVCC 5 VIN2 ◈ Pin Description NO SYMBOL I/O DESCRIPTION 1 GND - Ground 2 VO1 O Output 1 3 VCTL I Motor speed control 4 VIN1 I Input 1 5 VIN2 I Input 2 6 SVCC - Supply voltage (Signal) 7 PVCC - Supply voltage (Power) 8 VO2 O Output 2 KSD-I7F014-003 SEPT., 2010 REV. 03 2 1ch Bi-directional Motor Driver S8082 ◈ Absolute Maximum Ratings ( Ta = 25℃ ) Parameter Symbol Limits Unit Maximum Supply Voltage Vcc 18 V Maximum Output Current IO 0.8 A Power Dissipation Pd 600 mW Operate Temperature Range Topr -25 ~ +85 ℃ Storage Temperature Range Tstg -55 ~ +150 ℃ [ Pd ] When mounted on a 70mm×70mm×1.6mm glass epoxy board. Reduced by 4.84mW for each increase in Ta of 1℃. [ IO ] Duty 1 / 100, pulse width 500us. [ Tstg ] Should not exceed Pd or SOA and Tj=150℃ values. ◈ Recommended Operating Conditions ( Ta = 25℃ ) Parameter Supply Voltage Symbol Limits Unit SVCC 4.3 ~ 13.2 V PVCC 4.3 ~ SVCC V VCTL Pin is connected to the VCC line with 2×Vbe + 1Vcesat [ approximately 1.7V ]. So, Vcc should be supplied more than Vzener+1.7V for using stable area of zener diode. ◈ Power Dissipation Curve [ Pd ] ◈ 70mm×70mm×1.6mm glass epoxy board . KSD-I7F014-003 SEPT., 2010 REV. 03 3 1ch Bi-directional Motor Driver S8082 ◈ Electrical characteristics ( Unless otherwise specified Ta=25℃, PVCC=SVCC=12V ) NO Characteristics 1 Quiescent circuit current 2 Symbol Specification Condition Unit MIN. TYP. MAX. ICC Pin4, Pin5 = GND, RL = Open 4 6.5 9.5 mA Minimum input on current 1 IMIN1 Pin4 = IIN1, Pin5 = L, RL= Open - 10 30 uA 3 Minimum input on current 2 IMIN2 Pin4 = L, Pin5 = IIN2, RL= Open - 10 30 uA 4 Input threshold voltage 1 VITH1 Pin4 = VIN1, Pin5 = L, RL= Open 1 1.3 1.6 V 5 Input threshold voltage 2 VITH2 Pin4 = L, Pin5 = VIN2, RL= Open 1 1.3 1.6 V 6 Output leakage current 1 IOL1 Pin4 = Pin5 = GND, RL = Open - 0.01 1 mA 7 Output leakage current 2 IOL2 Pin4 = Pin5 = GND, RL = Open - 0.01 1 mA 8 Zener Current 1 IZ1 Pin4 = H, Pin5 = L, RL = Open - 0.85 1.5 mA 9 Zener Current 2 IZ2 Pin4 = L, Pin5 = H, RL = Open - 0.85 1.5 mA 10 Output voltage 1 VO1 Pin4 = H, Pin5 = L, RL = 60Ω 6.6 7.2 7.4 V 11 Output voltage 2 VO2 Pin4 = L, Pin5 = H, RL = 60Ω 6.6 7.2 7.4 V 12 Saturation voltage 1(Upper) VSAT1 IO = 300mA - 1.9 2.3 V 13 Saturation voltage 2(Upper) VSAT2 IO = 500mA - 1.9 2.3 V 14 Saturation voltage 1(Lower) VSAT3 IO = 300mA - 0.25 0.5 V 15 Saturation voltage 2(Lower) VSAT4 IO = 500mA - 0.4 0.6 V KSD-I7F014-003 SEPT., 2010 REV. 03 4 1ch Bi-directional Motor Driver S8082 Application Information 1. Thermal Shut Down Circuit I Q1 Output Stage [ Vo1, Vo2 ] V1 R1 V2 R2 Q2 Q3 The built-in thermal shutdown circuit mutes the output current when the chip temperature reaches 175℃ (typ.). The hysteresis is set to 25℃ (typ.) by IHys, so the circuit will start up again when the chip temperature falling down to 150℃ (typ.) When Ta = 25℃, Q2 & Q3 are turned-off [ Output Stage : Normality Operation ] V1 = I×(R1+R2) V2 = R2÷(R1+R2)×V1 = 0.385V When Ta = 175℃, Q2 & Q3 are turned-on [ Output Stage : Shut Down ] 0.700V – 0.385V = 315mV [ Vbe level of Q2 & Q3 : 0.700V / Temperature Coefficient of Q2 = Q3 = -1.8mV/℃ ] ◈ T.S.D : 315mV÷1.8mV = 175℃ KSD-I7F014-003 SEPT., 2010 REV. 03 5 1ch Bi-directional Motor Driver S8082 2. Input Logic OUT1 Q3 VIN1 OUT2 Q4 Q7 Q5 Q1 Q8 VIN2 Q6 Q10 Q2 Q9 VIN1＞2Vbe, Q2 = On VIN1＜2Vbe, Q2 = Off below 1.2V (typ.), the output current is muted. [ Logic Input to Output Table ] Input Logic Output Logic Motor Status VIN 1 (Pin 4) VIN 2 (Pin5) Vo 1 (Pin2) Vo 2(Pin8) L L L L Stand-By H L H L Forward Rotation L H L H Reverse Rotation H H L L Brake * VIN1/VIN2 Recommended Conditions [ Input High is 2.0V to Vcc / Input Low is below 0.8V ] KSD-I7F014-003 SEPT., 2010 REV. 03 6 1ch Bi-directional Motor Driver S8082 3. Output Part Circuit & Speed Control V1 Q1 Q4 Q7 Q5 Q2 Q8 Q10 R1 Vctl V2 Q9 R3 Vo1 M Q3 Vctl Vo2 Q6 R2 R4 [ Forward Rotation : VIN1( H ), VIN2( L ) ] V1 = Vctl + 2 Vbe(Q7,Q8) Vo1 = V1 - 2Vbe(Q1,Q2) = Vctl + 2 Vbe(Q7,Q8) - 2Vbe(Q1,Q2) = Vctl Vo2 = Vsat(Q6) Vout = Vo1 – Vo2 = Vctl – Vsat(Q6) [ * Therefore, Vout level depends on the Vctl pin’s level for Speed Control ] KSD-I7F014-003 SEPT., 2010 REV. 03 7 1ch Bi-directional Motor Driver S8082 Characteristic Diagrams Fig. 1 VCC - ICC Fig. 2 Temperature - ICC Fig. 3 VCTL - VO Fig.4 Temperature - VO Ω Ω Fig. 5 IO - VSAT (Upper) Fig.6 IO - VSAT (Lower) KSD-I7F014-003 SEPT., 2010 REV. 03 8 1ch Bi-directional Motor Driver S8082 ◈ Application Circuit 1 VO2 GND 8 RS 2 PVCC VO1 VCC 7 S8082 3 SVCC VCTL 6 104 4 VIN2 VIN1 5 ZD VIN2 VIN1 104 M KSD-I7F014-003 SEPT., 2010 REV. 03 9 1ch Bi-directional Motor Driver S8082 ◈ Test Circuit 1 GND 2 VO1 VO2 8 PVCC 7 S8082 A 3 VCTL SVCC 6 4 VIN1 VIN2 5 M A VCC ZD 7.4V A A VIN1 VIN2 KSD-I7F014-003 SEPT., 2010 REV. 03 A 10 1ch Bi-directional Motor Driver S8082 Outline Dimension KSD-I7F014-003 SEPT., 2010 REV. 03 11 1ch Bi-directional Motor Driver S8082 The AUK Corp. products are intended for the use as components in general electronic equipment (Office and communication equipment, measuring equipment, home appliance, etc.). Please make sure that you consult with us before you use these AUK Corp. products in equipments which require high quality and / or reliability, and in equipments which could have major impact to the welfare of human life(atomic energy control, airplane, spaceship, transportation, combustion control, all types of safety device, etc.). AUK Corp. cannot accept liability to any damage which may occur in case these AUK Corp. products were used in the mentioned equipments without prior consultation with AUK Corp.. Specifications mentioned in this publication are subject to change without notice. KSD-I7F014-003 SEPT., 2010 REV. 03 12 1ch Bi-directional Motor Driver