 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| www.fairchildsemi.com KA8301 Bi-Directional DC Motor Driver Features * Built-in brake function. * Built-in element to absorb a surge current derived from changing motor direction and braking motor drive. * External motor speed control pin * Motor direction change circuit. * Interfaces with CMOS devices. Description The KA8301 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 systems. The speed control can be achieved by adjusting the external voltage of the speed control pin. 10-SIPH-B Typical Application * Video cassette recorder (VCR) loading motor * Low current DC motor such audio or video equipment * General DC motor Ordering Information Device KA8301-L Package 10-SIPH-B Operating Temp. -25C ~ +75C Rev. 1.0.1 February. 2000. (c)2000 Fairchild Semiconductor International 1 KA8301 Pin Assignments KA8301 GND 1 VOUT1 2 VZ1 3 VR 4 FIN 5 RIN 6 VCC1 7 VCC2 8 VZ2 9 VOUT2 10 Pin Definitions Pin Number 1 2 3 4 5 6 7 8 9 10 Pin Name GND VOUT1 VZ1 VR FIN RIN VCC1 VCC2 VZ2 VOUT2 I/O O I I I I I O Ground Output 1 Phase compensation Motor speed control Input 1 Input 2 Supply voltage (Signal) Supply voltage (Power) Phase compensation Output 2 Pin Function Description 2 KA8301 Internal Block Diagram DRIVER PRE-DRIVER LOGIC 1 GND 2 VOUT1 3 VZ1 4 VR 5 FIN 6 RIN 7 VCC1 8 VCC2 9 VZ2 10 VOUT2 3 KA8301 Equivalent Circuits Description Output Pin No. 2, 10 Vcc Internal circuit Vcc 2 10 Phase compensation 3, 9 3 9 Speed control 4 Vcc Vcc VCC 4 4 KA8301 Equivalent Circuit (Continued) Description Input Pin No. 5, 6 Vcc Vcc Internal circuit VCC 5 6 VCC1 VCC2 GND 7 8 1 5 KA8301 Absolute Maximum Ratings (Ta=25C) Parameter Supply voltage Maximum output current Power dissipation Input voltage Operating temperature Storage temperature Symbol VCCmax IOmax Pd VIN TOPR TSTG Value 18 1.6 note1 Unit V A W V C C 15note2 -0.3 ~ VCC -25 ~ +75 -55 ~ +150 Notes: 1. Duty 1/100, pulse width 500s 2. 1) When mounted on glass epoxy PCB (76.2 x 114 x 1.57mm) 2) Power dissipation reduces 120mW / C for using above Ta=25C 3) Do not exceed Pd and SOA(Safe Operating Area). Power Dissipation Curve Pd (W) 20 15 SOA 0 0 25 50 75 100 125 150 175 Ambient temperature, Ta [C] Recommened Operating Conditions (Ta=25C) Parameter Operating supply voltage Symbol VCC Value 8 ~ 18 Unit V 6 KA8301 Electrical Characteristics (Ta=25C, Vcc=12V) Parameter Quiescent current Min. input-on current 1 Min. input-on current 2 Input threshold voltage 1 Input threshold voltage 2 Output leakage current 1 Output leakage current 2 Zener current 1 Zener current 2 Output voltage 1 Output voltage 2 Saturation voltage (Pin10-1) Saturation voltage (Pin2-1) Saturation voltage (Pin8-2) Saturation voltage (Pin8-10) Symbol IQ IIN1 IIN2 VINTH1 VINTH2 IOL1 IOL2 IZ1 IZ2 VO1 VO2 VCE10-1 VCE2-1 VCE8-2 VCE8-10 Conditions Pin5 & 6: GND, RL= RL=, pin5=IIN1, pin6=L RL=, pin5=L, pin6=IIN2 RL=, pin5=VINTH1, pin6=L RL=, pin5=L, pin6=VINTH2 RL=, pin5 & 6=GND RL=, pin5 & 6=GND RL=, pin5=H, pin6=L RL=, pin5=L, pin6=H RL=60, pin5=H, pin6=L RL=60, pin5=L, pin6=H RL=RC=, pin5=H, pin6=L, ISINK=100mA RL=RC=, pin5=L, pin6=H, ISINK=100mA RL=RC=, pin5=H, pin6=L, ISOURCE=100mA RL=RC=, pin5=L, pin6=H, ISOURCE=100mA Min. 3 0.7 0.7 6.6 6.6 Typ. 5.5 10 10 1.3 1.3 0.85 0.85 7.2 7.1 0.83 0.83 0.83 0.83 Max. 20 50 50 2.0 2.0 1 1 1.5 1.5 1.5 1.5 1.5 1.5 Units mA A A V V mA mA mA mA V V V V V V 7 KA8301 Application Information 1. FORWARD AND REVERSE CONTROL LOGIC Pin #5 L (0.7V ) L (0.7V ) H (2.0V ) H (2.0V ) Pin #6 L (0.7V ) H (2.0V ) L (0.7V ) H (2.0V ) Pin #2 L L H H Pin #10 L H L H Function Brake Reverse Forward Brake * If pin #5=H, pin #6=L, load current flows from pin #2 to pin #10 through a motor. * If pin #5=L, pin #6=H, load current flows from pin #10 to pin #2 through a motor. * If pin #5=pin #6=L or pin #5=pin #6=H, the KA8301 stops supplying the power to motor while absorbing counter EMF from the motor as a brake. 2. RUSH CURRENT RESTRICTING CIRCUIT If a high voltage generated during reversing operation is applied across pin #2 and pin #10, an internal comparator activates the rush current restricting circuit. 3. DRIVE CIRCUIT In the forward mode, the drive circuit supplies a load current to the motor from pin #2 to pin #10. In the reverse mode, it supplies the current from pin #10 to pin #2. The output voltage (VOUT) applied to the motor is given by the followings; VOUT = VZD - VCE(sat), where VZD: a zener voltage applied to pin #4 If pin #4 is left open, the output voltage is given by the followings; VOUT = VCC1 - VCE(sat, pnp) - 2VF - VCE(sat) 8 KA8301 Typical Performance Characteristics 9 KA8301 Typical Performance Characteristics (Continued) 10 KA8301 Typical Performance Characteristics (Continued) 11 KA8301 Test Circuits KA8301 GND VOUT1 1 2 VZ1 3 VR 4 FIN 5 CD 0.1F S3 S1 S2 A S5 ZD 7.4V A S6 A S4 S7 RC 10 VCC VIN RIN 6 VCC1 7 VCC2 8 VZ2 9 VOUT2 10 A Typical Application Circuits KA8301 GND VOUT1 1 2 VZ1 3 VR 4 FIN 5 RIN 6 VCC1 7 VCC2 8 VZ2 9 VOUT2 10 10 VCC 0.1 M 12 |
Price & Availability of KA8301L
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |