AT5550 2-Channel Motor Driver for DSC Features •Independent 2-Channel H-Bridge •Low voltage operation ( VCC = 2.0V) •Low on-resistance <1.25 Ω •Low operating current. •Built-in Thermal shutdown protection •MSOP-10 & DFN-10 Package General Description The AT5550 is a 2-channel low-saturation, low-voltage H-bridge motor driver IC for DSC motor application. Applications • DC motor, stepping motor Block Diagram Aimtron reserves the right without notice to change this circuitry and specifications. 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 1 AT5550 2-Channel Motor Driver for DSC OUT2A OUT2B GND IN2A IN2B OUT1B IN1A IN1B OUT1A VCC Pin Configuration Ordering Information Part number AT5550M_GRE AT5550N Package MSOP-10, Green DFN-10, Green Marking ▲▲▲▲, Date Code with one bottom line ▲▲▲▲▲▲, Date Code *For more marking information, contact out sales representative directly Pin Description Pin NO. Symbol 1 VCC 2 IN1A 3 IN1B 4 IN2A 5 IN2B 6 GND 7 OUT2B 8 OUT2A 9 OUT1B 10 OUT1A I/O P I I I I P O O O O Description Power supply Input pin to decide the state of drivier1 Input pin to decide the state of drivier1 Input pin to decide the state of drivier2 Input pin to decide the state of drivier2 Ground Output pin of driver2 Output pin of driver2 Output pin of driver1 Output pin of driver1 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 2 AT5550 2-Channel Motor Driver for DSC Absolute Maximum Ratings Item Supply voltage VCC Input voltage Maximum output current Power dissipation Operating temperature Junction temperature Storage temperature range ESD Susceptibility *2 Symbol VCC VIN Iout Pd Topr Tj Tstg HBM MM Ratings 5.5 VCC+0.4 800 870 -20 ~ +85 ~ +150 -55 ~ +150 2 200 Unit V V mA mW °C °C °C KV V 1. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2. Device are ESD sensitive. Handling precaution recommended. The Human Body model is a 100pF capacitor discharged through a 1.5KΩ resistor into each pin. Recommended Operating Conditions (Ta=25°C) Item Supply voltage VCC Control input voltage H Bridge output current Logic input frequency Symbol VCC VIN Iout Fin Ratings +2.0 ~ +5.5 0 ~ VCC -400 ~ +400 0 ~ 100 Unit V V mA kHz 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 3 AT5550 2-Channel Motor Driver for DSC Electrical Characteristic (Unless otherwised noted Parameter Symbol Condition Min. Ta=25 °C , VCC= 3.0V) Values Typ. Max. Unit Whole circuits Circuit current at standby Circuit current ICCST IN1A=IN1B=IN2A=IN2B=L ICC IN1A=IN2B=L, IN2A=IN1B=H, No load - 0.1 10 µA - 0.2 0.5 mA Control input H level input voltage VINH 2.0 - - V L level input voltage VINL - - 0.8 V H level input current IINH VIN=3V - 5 20 L level input current IINL VIN=0V -1 0 - µA µA Pull-down resistance RIN - 1.5 - MΩ 1.25 1.80 Ω Driver1,2 Output ON Resistance RON Io=+-200mA, Sum of on-resistance Thermal Protection Circuit Protection Temperature TSD 150 °C 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 4 AT5550 2-Channel Motor Driver for DSC Input-output logic table IN1A L H L H Input IN1B IN2A L L L H H L H H IN1A L H H L L L L L H H Input IN1B IN2A L L L L L H L H H H H L H L L L L L H H L H Output OUT1B OUT2A Z Z L H H L H Keep the previous output state IN2B L L L L L L H H H Output OUT1B OUT2A Z Z L Z L H Z H H H H Z H L Z L L L IN2B L H OUT1A Z H L OUT1A Z H H Z L L L Z H OUT2B Z Mode Standby L H OUT2B Z Z L L L Z H H H Mode Standby 1,2 phase excitation Keep the previous output state 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 5 AT5550 2-Channel Motor Driver for DSC Typical Application Circuit VCC=3V 10uF 1 VCC Thermal Shutdown OUT1A 10 H-Bridge H-Bridge IN1A 2 MCU 3 IN1B IN2A 4 M 9 OUT1B Logic Block OUT2A 8 5 IN2B H-Bridge H-Bridge M 7 OUT2B GND 6 Figure 1 VCC=3V 10uF 1 VCC Thermal Shutdown OUT1A 10 H-Bridge H-Bridge IN1A 2 MCU 3 IN1B IN2A 4 9 OUT1B Logic Block M OUT2A 8 5 IN2B H-Bridge H-Bridge 7 OUT2B GND 6 Figure 2 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 6 AT5550 2-Channel Motor Driver for DSC Typical characteristics : CH2 Forward Rotation ： Output Saturatin Voltage vs. Output Current 1.0 1.0 0.9 0.9 0.8 0.8 Output Saturation Voltage (V) Output Saturation Voltage (V) CH1 Forward Rotation： Output Saturatin Voltage vs. Output Current 0.7 0.6 0.5 0.4 0.3 0.7 0.6 0.5 0.4 0.3 0.2 0.2 VCC=3V VCC=3V 0.1 VCC=5V 0.1 VCC=5V 0.0 0.0 0 0.1 0.2 0.3 0.4 0 0.5 0.1 0.2 CH1 Re verse Rotation： Output Saturatin Voltage vs. Output Current 0.4 0.5 CH2 Reverse Rotation ： Output Saturatin Voltage vs. Output Current 1.0 1.0 0.9 0.9 0.8 Output Saturation Voltage (V) Output Saturation Voltage (V) 0.3 Outpput Current (A) Outpput Current (A) 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0.8 0.7 0.6 0.5 0.4 0.3 VCC=3V 0.2 VCC=3V VCC=5V 0.1 VCC=5V 0.0 0.0 0 0.1 0.2 0.3 0.4 0.5 0 Outpput Current (A) 0.1 0.2 0.3 0.4 0.5 Outpput Current (A) VCC No-load Supply Current vs. Supply Voltage Supply Current (mA) 0.3 0.2 0.1 0.0 0 1 2 3 4 5 6 7 Supply Voltage (V) 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 7 AT5550 2-Channel Motor Driver for DSC Package Description：MSOP-10 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 8 AT5550 2-Channel Motor Driver for DSC Package Outline: DFN-10 SYMBOL A A3 b D D2 E E2 e L INCHES MIN 0.027 0.006 0.007 MAX 0.031 0.010 0.012 0.12 BSC 0.075 0.082 0.12 BSC 0.043 0.051 0.020 BSC 0.017 0.026 MILLIMETERS MIN MAX 0.70 0.80 0.15 0.25 0.18 0.30 3 BSC 1.90 2.10 3 BSC 1.10 1.30 0.50 BSC 0.45 0.65 NOTES - Reflow Profiles 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 9 AT5550 2-Channel Motor Driver for DSC Profile Feature Average ramp-up rate (TL to TP) Preheat -Temperature Min(Tsmin) -Temperature Max (Tsmax) -Time (min to max)(ts) Tsmax to TL -Ramp-up Rate Time maintained above: -Temperature (TL) -Time (tL) Peak Temperature(TP) Time within 5°C of actual Peak Temperature (tP) Ramp-down Rate Time 25°C to Peak Temperature Sn-Pb Eutectic Assembly Pb-Free Assembly Large Body Small Body Large Body Small Body Pkg. thickness Pkg. thickness Pkg. thickness Pkg. thickness ≥2.5mm <2.5mm or Pkg. or Pkg. volume ≥2.5mm or Pkg. ≥2.5mm or Pkg. volume <350mm3 volume ≥350mm3 volume ≥350mm3 ≥350mm3 3°C/second max. 3°C/second max. 100°C 150°C 60-120 seconds 150°C 200°C 60-180 seconds 3°C/second max. 183°C 60-150 seconds 217°C 60-150 seconds 225+0/-5°C 10-30 seconds 240+0/-5°C 10-30 seconds 245+0/-5°C 10-30 seconds 6°C/second max. 6 minutes max. 250+0/-5°C 20-40 seconds 3°C/second max. 8 minutes max. *All temperatures refer to topside of the package, measured on the package body surface. 7F, NO.9, Park Avenue II, Science-Based Industrial Park, Hsinchu 300, Taiwan, R.O.C. Tel: 886-3-563-0878 Fax: 886-3-563-0879 WWW: http://www.aimtron.com.tw 8/7/2006 REV:1.2 Email: [email protected] 10