www.fairchildsemi.com FAN8702/FAN8702B/FAN8702MP 6 Channel DSC Motor Driver Features Description • • • • • • • • • • The FAN8702 is designed for portable equipment such as DSC and mobile phone camera. It consists of 2 constant current and 4 constant voltage drive blocks suitable for shutter, auto-focus, iris and zoom motor drive. Independent 6-Channel H-Bridge. Output Current up to 600mA (Each Channel) Constant Current Control on CH5 and CH6. Constant Voltage Control on CH1,2,3 and CH4. Built in Brake Function on CH3,4 and CH6. Built in Short Through Protection. Low Saturation Voltage. Low Voltage operation. Built in Reference Voltage. Built in Thermal Shut Down. 48-LQFP-0707 48MLP7X7 Typical Applications • DSC • Mobile Phone Camera Ordering Information Device Package Operating Temp. FAN8702MP 48MLP 7X7 -20°C to +80°C FAN8702MPX 48MLP 7X7 -20°C to +80°C FAN8702 48-LQFP-0707 -20°C to +80°C FAN8702B 48-LQFP-0707 -20°C to +80°C Notes X : Tape & Reel Rev.1.0.3 ©2004 Fairchild Semiconductor Corporation FAN8702/FAN8702B/FAN8702MP Pin Assignments 36 OUT2 34 33 32 OUT9 RFG1 31 30 OUT10 OUT11 29 28 27 RFG2 OUT12 OUT5 26 25 OUT6 OUT7 OUT8 24 PG PG 23 39 NC NC 22 40 VB1 VB2 21 41 VCC1 VCC2 20 42 VREF NC 19 43 VC1 FC1 18 44 VC2 FC2 17 45 ISH VDD 16 46 IAE NC 15 47 NC SG 14 48 NC INHD 13 OUT1 38 FAN8702 IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 IN12 1 2 3 4 5 6 7 8 9 10 11 37 11 12 35 34 33 32 31 30 36 OUT7 2 35 OUT3 OUT4 OUT8 38 OUT12 RFG2 OUT11 OUT10 29 RFG1 28 27 OUT9 OUT4 26 25 OUT3 OUT2 OUT1 24 PG PG 23 39 NC NC 22 40 VB2 VB1 21 41 VCC2 VCC1 20 42 NC VREF 19 43 FC1 VC1 18 44 FC2 VC2 17 45 VDD ISH 16 46 NC IAE 15 47 SG NC 14 48 INHD NC 13 8702MP IN12 IN11 IN10 IN9 IN8 IN7 IN6 IN5 IN4 IN3 IN2 IN1 1 2 3 4 5 6 7 8 9 10 11 37 OUT6 OUT5 11 12 FAN8702/FAN8702B/FAN8702MP Pin Definitions Pin Number Pin Name I/O 12 IN 1 I Logic Input 1 - 2 11 IN 2 I Logic Input 2 - 3 10 IN 3 I Logic Input 3 - 4 9 IN 4 I Logic Input 4 - 5 8 IN 5 I Logic Input 5 - 6 7 IN 6 I Logic Input 6 - 7 6 IN 7 I Logic Input 7 - 8 5 IN 8 I Logic Input 8 - 9 4 IN 9 I Logic Input 9 - 10 3 IN 10 I Logic Input 10 - 11 2 IN 11 I Logic Input 11 - 12 1 IN 12 I Logic Input 12 - 13 48 INHD I Voltage Adjust for Vref - 14 47 SG P Signal Ground - 15 46 NC - Non Connection - 16 45 VDD P Supply Voltage (Logic Voltage) - 17 44 FC2 A Compensation 2 - 18 43 FC1 A Compensation 1 - 19 42 NC - Non Connection - 20 41 VCC2 P Supply Voltage (Current Drive2) - 21 40 VB2 P Supply Voltage (Voltage Drive2) - 22 39 NC - Non Connection - 23 38 PG P Power Ground - 24 37 OUT8 A Voltage Driver OUT8 - 25 36 OUT7 A Voltage Driver OUT7 - 26 35 OUT6 A Voltage Driver OUT6 - 27 34 OUT5 A Voltage Driver OUT5 - 28 33 OUT12 A Current Driver OUT12 - 29 32 RFG2 Α Current Sensing2 - 30 31 OUT11 A Current Driver OUT11 - 31 30 OUT10 A Current Driver OUT10 - 32 29 RFG1 Α Current Sensing1 - 33 28 OUT9 A Current Driver OUT9 - 34 27 OUT4 A Voltage Driver OUT4 - 35 26 OUT3 A Voltage Driver OUT3 - 36 25 OUT2 A Voltage Driver OUT2 - 37 24 OUT1 A Voltage Driver OUT1 - 38 23 PG P Power Ground - 39 22 NC - Non Connection - 40 21 VB1 P Supply Voltage (Voltage Drive1) - FAN8702/B FAN8702MP 1 Pin Function Description Remark 3 FAN8702/FAN8702B/FAN8702MP Pin Definitions (Continued) Pin Number 4 Pin Name I/O 20 VCC1 P Supply Voltage (Current Drive1) - 42 19 VREF A Reference Voltage Out - 43 18 VC1 A Voltage Adjust for Out 1~4 - 44 17 VC2 A Voltage Adjust for Out 5~8 - 45 16 ISH Α Voltage Adjust for Shutter(Out9~10) - 46 15 IAE A Voltage Adjust for IRIS(Out11~12) - 47 14 NC - Non Connection - 48 13 NC - Non Connection - Pin Number Pin Number 41 Pin Function Description Remark FAN8702/FAN8702B/FAN8702MP Internal Block Diagram OUT1 OUT2 OUT3 OUT4 OUT10 OUT9 OUT5 OUT6 VCC1 OUT8 VCC1 VCC2 VB2 VB1 VDD OUT7 VB1 SGND Constant voltage H-bridge CH1 Constant current H-bridge CH5 Constant voltage H-bridge CH2 Constant voltage H-bridge CH3 PGND VREF PG FC1 RFG1 CH1,CH2 5X VB2 PGND FC1 Quick Charge Reference out VC1 Constant voltage H-bridge CH4 FC2 VC2 CH5 CH3,CH4 VCC2 5X CH6 ISH Constant current H-bridge CH6 OUT11 OUT12 RFG2 IAE CH1~CH6 Control Reference Control Output stage TSD Logic INHD IN1 IN2 IN3 IN4 IN5 IN6 IN7 IN8 IN9 IN10 IN11 IN12 NC 5 FAN8702/FAN8702B/FAN8702MP Equivalent Circuits IN1 ~ IN 12 , INHD Input VC1 , VC2 VDD VB1 VB2 80K 60K 1 2 3 4 5 6 7 8 9 10 11 12 60K 43 70K 44 80K 13 ISH , IAE FC1 , FC2 VCC1 VCC1 VCC2 VCC2 10K 10K 45 46 5K 5K 18 17 RFG1 , RFG2 VCC1 32 VREF VDD VCC2 29 29 42 10K Notes: Reference of pin number is 48-LQFP-0707 6 FAN8702/FAN8702B/FAN8702MP Equivalent Circuits (Continued) Out1~Out4 Out5~Out8 VB1 VB2 37 35 36 34 27 25 26 24 Out9~Out10 Out11~Out12 VCC1 VCC2 33 31 30 28 Notes: Reference of pin number is 48-LQFP-0707 7 FAN8702/FAN8702B/FAN8702MP Absolute Maximum Ratings (Ta = 25°C) Parameter Symbol Value Unit Maximum Power Supply Voltage VBMAX 10.5 V Maximum Power Supply Voltage VCCMAX 10.5 V VINMAX 10.5 V Maximum Approval Voltage To Output Pin VOUTMAX 11.5 V Maximum Output Current IOUTMAX 600 Maximum Approval Voltage To Input Pin Maximum Power Dissipation PdMAX mA 1000 (FAN8702/B) Case1 1200 (FAN8702MP) Case1 2500 (FAN8702MP) Case2 mW Operating Temperature TOPR -20 ~ +80 °C Storage Temperature TSTG -55 ~ +150 °C Note: 1. Refer: EIA/JESD 51-2 & EIA/JESD 51-3 & EIA/JESD 51-5 & EIA/JESD 51-7 2. Case 1: Single layer PCB with 1 signal plane only, PCB size 76mm × 114mm × 1.6mm. 3. Case 2: Multi layer PCB with 1 signal, 1 power and 1 ground planes, PCB size 76mm × 114mm × 1.6mm, Cu plane sizes for power and ground 74mm × 74mm × 0.035mm, thermal via hole pitch 0.9mm, via hole φ size 0.3mm, 6 via hole. 4. Should not exceed PD or ASO value. Power Dissipation Curve Power dissipation (W) FAN8702 FAN8702B 1.0 Ambient temperature, Ta ( °C) 25 150 Pd [mW] 3,000 case2 2,000 FAN8702MP SOA case1 1,000 0 0 8 25 50 75 100 125 150 175 Ambient Temperature, Ta [°C] FAN8702/FAN8702B/FAN8702MP Recommended Operating Conditions (Ta = 25°C) Parameter Symbol Min. Typ. Max. Unit Operating Voltage Range VB1,2 2.2 - 6.5 V Operating Voltage Range VCC1,2 2.2 - 6.5 V Logic Input High Level VINH 1.8 - 7.0 V Logic Input Low Level VINL -0.3 - 0.4 V 9 FAN8702/FAN8702B/FAN8702MP Electrical Characteristics (Ta = 25°C, VB1=VB2=VCC1=VCC2=VDD=2.4V) Block Total Parameter Conditions Typ. Max. Unit ISTB VB=VCC=VDD=7.0V - - 1.0 µA Operating Consumption Current 1 ICC1 IN1~,IN8 (1Phase) IOV=200mA, Note1 - 8 11 mA Operating Consumption Current 2 ICC2 IN1~IN8(2Phase) IOV=400mA, Note1 - 17 25 mA Operating Consumption Current 3 ICC3 IN5~IN8(Brake) Note2 - 16 25 mA Operating Consumption Current 4 ICC4 IN9~IN12(1 phase) IOI=200mA, Note1 - 6 11 mA Operating Consumption Current 5 ICC5 IN11,IN12(Brake)Note2 - 16 25 mA Reference Voltage Output Voltage 1 VREF1 IREF=−1mA,INHD=L 0.95 1.0 1.05 V Reference Voltage Output Voltage 2 VREF2 IREF=−1mA,INHD=H 0.64 0.67 0.70 V Logic Input High Current IINH VIN=5.0V - 60 90 µA Logic Input Low Current IINL VIN=0.0V -1 - 1 µA Thermal Shutdown THD - 150 - °C 282 300 318 mA - 0.4 0.6 V 1.9 2.0 2.1 V - 0.35 0.50 V Current driver Output Saturation Voltage (PNP+NPN) Output Voltage 1 Output Saturation Voltage (PNP+NPN) IO VSAT1 VO VSAT2 RFG=1.0Ω, ISH=0.3V IO=0.3A VC1, 2 =0.4V IO=0.2A Note : 1. ICC1, ICC2,ICC4 is sum of the current consumption VB1,VB2,VCC1,VCC2 line. 2. ICC3, ICC5 is sum of the current consumption VB1,VB2,VCC1,VCC2 and VDD line. 10 Min. Stand-by Current Output Current 1 Voltage driver Symbol FAN8702/FAN8702B/FAN8702MP Operation Truth Table Input/ Output IN Mo1 tor Operation Stan d-by IN 2 IN 3 IN 4 IN 5 IN 6 IN 7 IN 8 IN 9 IN 10 IN 11 IN 12 INHD OUT 1 OT 2 L L L L L L L L L L L L L Z Z L L L L L L L L L L L L H 0.67 L 1.0 H 0.67 When one of input of IN1 to IN12 is high L Volt age driver 1 L Z Z L H L H H L H L H H Z Z driver 2 Curr ent driver 2 Z Z Z L H L H H L H L H H Z Z Z Z L Z Z L H L H H L H L H H L L Z Z L L Z Z L H L H H L H L H H L L Z Z L L Z Z L H L H H L H L H H driver 1 Curr ent Z L L L Volt age OU OUT OUT OUT OUT OUT OUT OUT OUT OUT T3 4 5 6 7 8 9 10 11 12 FAN8702 only FAN8702B and FAN8702MP Z Z Vref Z Inhibit Z Z L L Z Z L H L H H L H L H H L L 11 FAN8702/FAN8702B/FAN8702MP Application Information 1. Current Drive Output Current Setting VCC1 VCC2 VREF Reference Out OUT_A H-BRIDGE 5,6 ISH / IAE M OUT_B IN9~12 RW FC RFG RS Motor current is determined by ISH/IAE voltage and Rs sensing resistance and calculated by the formula below considering Rw. Generally internal bonding and metal resistance Rw is around 0.05Ω . or IAE Input Voltage Motor Current = ISH ----------------------------------------------------------------RS + RW 2. Current Drive Block1(CH5) VCC1 VREF Reference Out OUT9 ISH SH H-BRIDGE5 IN9~10 OUT10 Quick Charge Ciruit Rw FC1 RFG1 Rs If there is no capacitor on the exterior of the FC terminal or low capacitance is used, it may cause oscillation or overshoot at output terminal. The output stage will not be operating until FC1 terminal voltage reaches around 0.7V (Typical) The output response time depends on the FC1 capacitance and interval of Input signal. Generally, the quick charging time is 10us~20us. To minimize the delay time difference in the output response between high-speed shutter and bulb shutter a quick charging circuit is built in. 12 FAN8702/FAN8702B/FAN8702MP 1sec over 500us Output Delay Time Output Delay Time IN9 IN10 Motor current FC1 Quick charge Time discharge Time discharge Time 3. Current Drive block2(CH6) VCC2 VREF Reference Out OUT11 IAE M H-BRIDGE6 Brake function IN11~12 OUT12 Rw FC2 RFG2 Rs The output response time depends on the FC2 capacitance and interval of Input signal because there is no FC quick charging circuit in current drive2. IN11 IN12 Motor current 1sec over 500us Output Delay Time Output Delay Time FC2 discharge Time discharge Time 13 FAN8702/FAN8702B/FAN8702MP 4. Voltage Drive Block The output voltage as much as 5 times the input voltage VC1,VC2 is produced in the range of motor power VB1/VB2. If output oscillation occur during constant voltage drive, then 0.01uF~0.1uF capacitor should be installed on the both sides of the output. VB1 VB2 VREF Reference Out OUT_A VC1 / VC2 H-BRIDGE 1,2,3,4 OUT_B 4R IN1~IN8 M R 5. H-Bridge Drive Mode A H-bridge drive mode can be implemented using the current drive block or the voltage drive block. 1) H- bridge drive using current drive block The current drive block using the H-bridge method can be operated with ISH/AE connected to VREF or supply input, with the FC terminal open and sensing terminal connected to ground. VCC1 VCC2 VREF Reference Out OUT_A H-BRIDGE 5,6 ISH / IAE M OUT_B IN9~IN12 RW FC 14 RFG FAN8702/FAN8702B/FAN8702MP 2) H- bridge drive using voltage drive block When VB1 and VB2 power is less than 5V, VC1/VC2 input should be connected to VREF or motor supply and VB1 and VB2 power is more than 5V, VC1/VC2 input should be connected to motor supply. In H-bridge drive mode, a capacitor to prevent oscillation is not necessary on both sides of the output. VB1 VB2 VREF Reference Out OUT_A VC1/ VC2 H-BRIDGE 1,2,3,4 4R IN1~IN8 M OUT_B R 6. Short through protection When a motor is driven, high/low side TR turn on simultaneously. This range may cause power to be shorted to ground momentarily. To prevent a short through, output is generated with a 1.8us(typical) delay after a high input signal. Delay Time 1.8us IN1,3,5,7,9,11 IN2,4,6,8,10,12 OUT1,3,5,7,9,11 OUT2,4,6,8,10,12 Delay Time 1.8us 7. Brake function The brake function is built in Ch3,4 and CH6 . Using the H/H signal on input, it is designed so that a short brake is operated on output. 8. Power Supply VB1,VB2,VCC1 and VCC2 are separated for motor power of FAN8702 and VDD is used for IC logic power. VB1,VB2,VCC1 and VCC2 are correspond to H-bridge 1~2, H-bridge 3~4, H-bridge 5 and H-bridge6. 9. Thermal shutdown When thermal shut down is activated, all the outputs become off except for VREF. 15 FAN8702/FAN8702B/FAN8702MP Typical Application Circuits1 STEP M STEP M Shutter Auto-focus OUT1 OUT3 OUT2 OUT4 OUT9 Multi iris OUT5 OUT10 OUT6 OUT7 OUT8 VCC1 VCC2 VB2 VB1 VDD VCC1 VB1 SGND Constant voltage H-bridge CH1 Constant current H-bridge CH5 Constant voltage H-bridge CH2 Constant voltage H-bridge CH3 PGND VREF VB2 PG PGND FC1 Quick Charge Reference out VC1 Constant voltage H-bridge CH4 CH1,CH2 FC1 RFG1 5X FC2 VC2 CH5 CH3,CH4 VCC2 5X OUT11 CH6 ISH Constant current H-bridge CH6 Zoom OUT12 RFG2 IAE CH1~CH6 Control Reference Control Output stage TSD Logic INHD IN1 IN2 IN3 IN4 IN5 IN6 IN7 DSP 16 IN8 IN9 IN10 IN11 IN12 NC DC M FAN8702/FAN8702B/FAN8702MP Package Dimensions (Unit: mm) 48-LQFP-0707 17 FAN8702/FAN8702B/FAN8702MP Package Dimensions (Unit: mm) 48MLP 7x7 18 FAN8702/FAN8702B/FAN8702MP Recommended PCB Design for FAN8702MP(Unit: mm) ** This design for : ** Via dia is 0.15mm, depth is max0.15mm ** RECOMMENDED SCREEN MASK THICKNESS : 100~130um ** RECOMMENDED SCREEN MASK THICKNESS : 100~130um 19 FAN8702/FAN8702B/FAN8702MP 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 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, 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 8/26/04 0.0m 001 Stock#DSxxxxxxxx 2003 Fairchild Semiconductor Corporation