BI-DIRECTIONAL DC MOTOR DRIVER FEATURES ORDERING INFORMATION TARGET APPLICATIONS BLOCK DIAGRAM

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VCR PRODUCTS BI-DIRECTIONAL DC MOTOR DRIVER The is a monolithic integrated circuit designed for driving bi-directional DC motor with braking and speed control, and it is suitable for the loading

And it has two pins of logic inputs for controlling the direction as forward, reverse and braking. 10-SIP FEATURES Built-in brake function for stable brake characteristics.

1 VCR PRODUCTS BI-DIRECTIONAL DC MOTOR DRIVER The is a monolithic integrated circuit designed for driving bi-directional DC motor with braking and speed control, 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. And it has two pins of logic inputs for controlling the direction as forward, reverse and braking. 10-SIP FEATURES Built-in brake function for stable brake characteristics. Built-in element to absorb a dash current derived from changing motor direction and braking motor drive. Motor speed control by an external voltage. Stable motor direction change. Interfaces with CMOS devices. Built-in the thermal shut down circuit (165 C). Low standby current. (6.5mA) ORDERING INFORMATION Device Package Operating Temperature 10-SIP 25 C ~ +75 C TARGET APPLICATIONS VCR low current DC motor such as Audio equipment. BLOCK DIAGRAM DRIVER OUT PRE DRIVER BIAS LOGIC SWITCH TSD GND V O1 V Z1 V CTL V IN1 V IN2 SV CC PV CC V Z2 V O Fairchild Semiconductor Corporation MIC-99D001 Rev. B 1

2 VCR PRODUCTS PIN CONFIGURATIONS GND V O1 V Z1 V CTL V IN1 V IN2 SV CC PV CC V Z2 V O PIN DESCRIPTION Pin No. Symbol I/O Description Pin No. Symbol I/O Description 1 GND Ground 6 V IN2 I Input 2 2 V O1 O Output 1 7 SV CC Supply voltage (Signal) 3 V Z1 Phase compensation 8 PV CC Supply voltage (Power) 4 V CTL I Motor speed control 9 V Z2 Phase compensation 5 F IN1 I Input 1 10 V O2 O Output 2 2 MIC-99D001

3 VCR PRODUCTS INTERNAL CIRCUIT Description Pin No. Internal circuit Output 2, Phase compensation 3, 9 V CC 3 50Ω 9 Speed control 4 V CC 4 50Ω MIC-99D001 3

4 VCR PRODUCTS INTERMAL CIRCUIT (Continued) Description Pin No. Internal circuit Input 5, 6 V CC 5 50Ω 6 SVCC PVCC V CC 8 4 MIC-99D001

5 VCR PRODUCTS ABSOLUTE MAXIMUM RATING (Ta=25 C) Characteristics Symbol Value Unit Remark Supply voltage V CCmax 18 V Maxium Output current I Omax 1.6 note1 A Power dissipation P d 1.2 note2 W Operating temperature T OPR 25 ~ +75 C Storage temperature T STG 55 ~ +125 C NOTES: 1. Duty 1 / 100, pulse width 500µs 2. 1) When mounted on glass epoxy PCB ( mm) 2) Power dissipation reduces 9.6mV / C for using above Ta=25 C. 3) Do not exceed Pd and SOA. PD GRAPH Pd (mw) 1, 200 SOA Ambient temperature, Ta [ C] RECOMMENED OPERATING CONDITIONS (Ta=25 C) Characteristics Symbol Operating voltage range Unit Operating supply voltage V CC 7 ~ 18 V NOTE: Caution 1) V CC2 V CC1 Caution 2) When V CC is above 16V, the V CTL must be opened or 8.5 V CTL V CC2 MIC-99D001 5

6 VCR PRODUCTS ELECTRICAL CHARACTERISTICS (Ta=25 C, V CC =SV CC =PV CC =12V) Characteristic Symbol Test conditions Min. Typ. max. Unit Quiescent current I CC Pin5 & 6: GND, R L = ma Min. input-on current 1 I IN1 R L =, pin5=i IN1, pin6=l µa Min. input-on current 2 I IN2 R L =, pin5=l, pin6=i IN µa Input threshold voltage 1 V ITH1 R L =, pin5=v IN, pin6=l V Input threshold voltage 2 V ITH2 R L =, pin5=l, pin6=v IN V Output leakage current 1 I OL1 R L =, pin5 & 6=GND ma Output leakage current 2 I OL2 R L =, pin5 & 6=GND ma Zener current 1 I Z1 R L =, pin5=h, pin6=l ma Zener current 2 I Z2 R L =, pin5=l, pin6=h ma Output voltage 1 V O1 R L =60Ω, pin5=h, pin6=l V Output voltage 2 V O2 R L =60Ω, pin5=l, pin6=h V Saturation voltage 1 (Upper) V SAT1 I O =300mA V Saturation voltage 2 (Upper) V SAT2 I O =500mA V Saturation voltage 1 (Lower) V SAT3 I O =300mA V Saturation voltage 2 (Lower) V SAT4 I O =500mA V 6 MIC-99D001

7 VCR PRODUCTS APPLICATION INFORMATIONS 1. THERMAL SHUT DOWN CIRCUIT I Q1 V1 R1 V2 Q2 Q3 R2 V 1 = I (R1 + R2) V 2 = R2 / (R1 + R2) V1 = 0.37V When Ta = 25 C, Q2 & Q3 are Turn-off. (because V 2 = 0.37V) 0.73V V = 360mV (When Q 2 & Q 3 are Turn-on, Vbe Q2 = Vbe Q3 = 0.73V) And temperature coefficient of Q 2 = Q 3 = 2mV / C T.S.D: 360mV / 2mV = 180 C When temperature of TR is 180 C, Q2 & Q3 become Turn-on and make the bias voltage of output stage saturate. 2. LOGIC INPUT & OUTPUT TABLE INPUT High is above 2.0V. INPUT Low is below 0.7V. *Low : All Power TRs are off-state. Input Output Motor Pin #5 Pin #6 Pin #2 Pin #10 Low Low *Low *Low Brake High Low High Low Forward Low High Low High Reverse High High *Low *Low Brake But internal Bias makes output Voltage low state. MIC-99D001 7

8 VCR PRODUCTS 3. LOGIC SWITCH CIRCUIT SV CC V1 V2 5 Q4 Q7 6 Q6 Q5 V CTL 4 7.4V This circuit define reference voltage of output. When pin #5 is H and pin #6 is L, V1 = Vzd + Vbe Q4 + Vbe = Q5 8.9V V2 = Vbeq 7 + Vsat = Q6 0.87V V1 and V2 are concerned with output voltage of motor and changed according to the voltage of pin #4 (V CTL ). 8 MIC-99D001

9 VCR PRODUCTS 4. DRIVE OUTPUT CIRCUIT P VCC V1 Q1 Q4 V2 Q2 Q5 R1 V O1 R L M V O2 R2 Q3 Q6 V 1 = 8.9V V 2 = 0.87V V O1 = V 1 - V BEQ1 - V BEQ2 V O2 = V Q6SAT V O = V O1 - V O2 = V 1 - V BEQ1 - V BEQ2 - V Q6SAT I RL = (V O1 - V O2 ) / R L MIC-99D001 9

10 VCR PRODUCTS CHARACTERISTICS GRAPHS 1. V CC vs I CC 2. Temperature vs I CC 3. V CTL vs I O 4. Temperature vs V O 5. I O vs V SAT (Upper) 6. I O vs V SAT (Lower) 10 MIC-99D001

11 VCR PRODUCTS TEST CIRCUIT GND V O1 V Z1 V CTL V IN1 V IN2 SV CC PV CC V Z2 V O C D A S1 S3 0.1µF S4 S2 A S5 A A Z D 7.4V V IN V CC APPLICATION CIRCUIT GND V O1 V Z1 V CTL V IN1 V IN2 SV CC PV CC V Z2 V O V CC 0.1µ M MIC-99D001 11

12 VCR PRODUCTS NOTES 12 MIC-99D001

13 TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx CoolFET CROSSVOLT E 2 CMOS TM FACT FACT Quiet Series FAST FASTr GTO HiSeC ISOPLANAR MICROWIRE POP PowerTrench QS Quiet Series SuperSOT -3 SuperSOT -6 SuperSOT -8 TinyLogic DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. Datasheet Identification Product Status Definition Advance Information Preliminary No Identification Needed Formative or In Design First Production Full Production This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only.

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