www.fairchildsemi.com KA7405D 2-Channel DC Motor Drive IC Features Description • Output current up to 1.5A (Each channel). • 4-function modes (CW, CCW, stop and brake) are controlled by 2-logic circuits. • Operating voltage range: VCC = 2.5 ~ 6.0V. • Built-in spike killer diode. • Low saturation voltage. The KA7405D is a monolithic integrated circuit, and suitable for the zoom and reel motor driver for camera, tape deck, any other consumer and industrial applications. 22-SOP-300 Typical Applications • Camera zoom and film motors • General DC motor Ordering Information Device Package Operating Temp. KA7405D 22-SOP-300 −25°C to +75°C Rev. 1.0.1 February. 2000. ©2000 Fairchild Semiconductor International KA7405D GND OUT1B PG1B VSB IN1B IN2B VSB PG2B N.C OUT2B VCC Pin Assignments 22 21 20 19 18 17 16 15 14 13 12 6 7 8 9 10 11 PG2A N.C OUT2A VCC PG1A 5 VSA OUT1A 1 4 IN2A 3 IN1A 2 VSA 1 GND KA7405D Pin Definitions 2 Pin Number Pin Name I/O Pin Function Description 1 GND - Signal ground 2 OUT1A O Output 1 Remark Channel A 3 PG1A - Power ground 1 Channel A 4 VSA - Output supply voltage Channel A 5 IN1A I Input 1 Channel A 6 IN2A I Input 2 Channel A 7 VSA - Output supply voltage Channel A 8 PG2A - Power ground 2 Channel A 9 NC - No connection - 10 OUT2A O Output 2 - 11 VCC - Supply voltage - 12 VCC - Supply voltage - 13 OUT2B O Output 2 14 NC - No connection Channel B 15 PG2B - Power ground 2 Channel B 16 VSB - Output supply voltage Channel B 17 IN2B I Input 2 Channel B 18 IN1B I Input 1 Channel B 19 VSB - Output supply voltage Channel B 20 PG1B - Power ground 1 Channel B 21 OUT1B O Output 1 Channel B 22 GND - Signal ground - - KA7405D Internal Block Diagram VCC 11 IN1A 5 VSA 7 IN2A 6 GND 1 VCC 12 A Channel Control logic (AND, OR, Inverter) IN2B 17 GND 22 VSA 2 OUT1A 3 PG1A 10 OUT2A 8 B Channel PG2A 16 VSB 21 OUT1B IN1B 18 VSB 19 4 Control logic (AND, OR, Inverter) 20 PG1B 13 OUT2B 15 PG2B 3 KA7405D Equivalent Circuits Description Pin No. Internal Circuit Control Input IN1A 5 IN2A 6 IN1B 18 IN2B 17 VCC 11, 12 GND 1, 22 5 18 6 17 11 12 1 22 30kΩ 30kΩ Motor Output 4 OUT1A 2 OUT2A 10 OUT1B 21 4 7 16 19 OUT2B 13 VSA 4, 7 VSB 16, 19 21 2 PG1A 3 13 10 PG2A 8 PG1B 20 PG2B 15 3 8 20 15 KA7405D Absolute Maximum Ratings (Ta = 25°°C) Parameter Symbol Value Unit Power supply voltage VCCMAX 6.0 V VSMAX 6.0 V PD 1000 mW Operating temperature TOPR −25 ~ +75 °C Storage temperature TSTG −40 ~ +125 °C Output current IOMAX 1.5 A Channel supply voltage Power dissipation Power Dissipation Curve Pd[mW] 1250 1000 IC 750 500 SOA 250 0 0 25 50 75 100 125 150 Ambient Temperature Ta[°C] Recommended Operating Conditions (Ta = 25°°C) Parameter Operating supply voltage Symbol Min. Typ. Max. Unit VCC 2.5 - 6.0 V 5 KA7405D Electrical Characteristics (VCC=3V, Ta=25°C, unless otherwise specified) Parameter Symbol Min. Typ. Max. Unit Supply current 1 ICC1 VIN(all) = 0V,Vcc=5V - 0.1 10 µA Supply current 2 ICC2 VIN1=3V,Vcc=5V - 15 30 mA Supply current 3 ICC3 VIN2=3V,Vcc=5V - 15 30 mA Supply current 4 ICC4 VIN=3V - 30 50 mA Input current IIN VCC=6V, VIN=2V - 45 80 µA Leakage current IIK VCC=5V - 0.1 10 µA VSF1 IO=500mA - 1.0 1.7 V Lower spark diode forward voltage VSF2 IO=500mA - 1.0 1.7 V Output saturation voltage (1A) VO1A IOA=300mA,VIN1A=3V - 0.45 0.70 V Output saturation voltage (1B) VO1B IOB=300mA,VIN1B=3V - 0.45 0.70 V Output saturation voltage (2A) VO2A IOA=600mA,VIN1A=3V - 1.0 1.5 V Output saturation voltage (2B) VO2B IOB=600mA,VIN1B=3V - 1.0 1.5 V Output saturation voltage (3A) VO3A IOA=300mA,VIN2A=3V - 0.45 0.70 V Output saturation voltage (3B) VO3B IOB=300mA,VIN2B=3V - 0.45 0.70 V Output saturation voltage (4A) VO4A IOA=600mA,VIN2A=3V - 1.0 1.5 V Output saturation voltage (4B) VO4B IOB=600mA,VIN2B=3V - 1.0 1.5 V Output saturation voltage 5 VO5 IOB=600mA,VIN1=3V - 0.6 0.8 V Output saturation voltage 6 VO6 IO=600mA,VIN2=3V - 0.6 0.8 V Output saturation voltage 7 VO7 IO=1200mA,VIN1=3V - 1.2 1.6 V Output saturation voltage 8 VO8 IO=1200mA,VIN2=3V - 1.2 1.6 V 10 15 - V Upper spark diode forward voltage VSUS IO=200mA Output saturation low voltage A note VOLA VCC=1.9V, IOA=400mA - 0.45 0.90 V Output saturation low voltage B note VOLB VCC=1.9V, IOB=400mA - 0.45 0.90 V Output sustain voltage Notes: User‘s option. 6 Conditions KA7405D Operation Truth Table Input/Output Motor Operation Input 1 Input 2 Output 1 Output 2 Remark Stop Low Low Off Off Forward Operation Low High Low High CW / CCW High impedance Backward Operation High Low High Low CCW / CW Fast stop High High Low Low Brake Typical Perfomance Characteristics Voltage[V] 2.0 Voltage[V] 2.0 1.8 1.8 1.6 1.6 1.4 1.4 1.2 1.0 1.2 1.0 0.8 0.8 0.6 0.4 0.6 0.4 VCC = 5V 0.2 Ta = 25°C 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Current[A] Figure 1. PNP Saturation Voltage VCC = 5V 0.2 Ta = 25°C 0.0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 Current[A] Figure 2. PNP Saturation Voltage 7 KA7405D Test Circuits 1 GND 2 OUT1A 3 PG1A PG1B 20 4 VSA VSB 19 5 IN1A IN1B 18 GND 22 OUT1B 21 S/W 3 A S/W 6 a S/W 4 b S/W 8 KA7405D a S/W 5 3V A 6 IN2A IN2B 17 7 VSA VSB 16 RL b S/W 9 a S/W 10 8 PG2B PG2A 15 b 1.5V S/W 7 9 N.C N.C OUT2B 13 10 OUT2A 11 VCC VCC A 7V V S/W 2 + A 10/25V S/W 1 8 14 12 KA7405D Test Conditions Characteristics SW1 SW2 SW3 SW4 SW5 SW6 SW7 SW8 SW9 SW10 Remark ICC1 Off Off X b b Off Off X X Off Supply current ICC2 Off Off On a b Off Off X X Off Supply current ICC3 Off Off On b a Off Off X X Off Supply current ICC4 Off Off On a a Off Off X X Off Supply current IIN On On On a a Off Off X X Off Input current IIK Off Off Off b b Off Off X X Off Leakage current VSF1 On On On a b On On Off Off a Spark diode VSF2 On On On b a On On Off Off b Spark diode VO1A On On On a b On On On On Off Single mode VO2A On On On b a On On On On Off Single mode VO3A On On On a b On On On On Off Single mode VO4A On On On b a On On On On Off Single mode VO5 On On On a b On On On On Off Parallel mode VO6 On On On b a On On On On Off Parallel mode VO7 On On On a b On On On On Off Parallel mode VO8 On On On b a On On On On Off Parallel mode VSUS Off Off X b b On On On On Off Sustain voltage Notes: ‘ X ’ : Don’t care. 9 KA7405D Typical Application Circuits 1 (Single drive mode) M 1 GND 2 OUT1A 3 PG1A PG1B 20 4 VSA VSB 19 5 IN1A IN1B 18 GND OUT1B 21 KA7405D From MCU IN2A IN2B 17 7 VSA VSB 16 8 PG2A PG2B 15 9 N.C N.C 14 11 Battery + 10/25V VCC M From MCU 6 10 OUT2A 10 22 OUT2B 13 VCC 12 KA7405D Typical Application Circuits 2 (Parallel drive mode) 22 1 GND 2 OUT1A 3 PG1A PG1B 20 4 VSA VSB 19 5 IN1A IN1B 18 GND OUT1B 21 M KA7405D From MCU 6 IN2A IN2B 17 7 VSA VSB 16 8 PG2A PG2B 15 9 N.C N.C 14 10 OUT2A 11 VCC OUT2B 13 VCC 12 Battery + 10/25V 11 KA7405D 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 THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR INTERNATIONAL. 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, and (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 a significant injury of the user. 2. A critical component in 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. www.fairchildsemi.com 12/1/00 0.0m 001 Stock#DSxxxxxxxx 2000 Fairchild Semiconductor international