AT5550 AIMTRON | Alldatasheet

Document overview

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Technical content

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.

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Pin Configuration OUT1B OUT1A OUT2A OUT2B GND VCC IN1A IN1B IN2A IN2B

Ordering Information

AT5550M_GRE MSOP-10, Green ▲▲▲▲, Date Code with one bottom line AT5550N DFN-10, Green *For more marking information, contact out sales representative directly Pin Description Pin NO. Symbol I/O

Description

P Power supply IN1A I Input pin to decide the state of drivier1 IN1B I Input pin to decide the state of drivier1 IN2A I Input pin to decide the state of drivier2 IN2B I Input pin to decide the state of drivier2 GND P Ground OUT2B O Output pin of driver2 OUT2A O Output pin of driver2 OUT1B O Output pin of driver1 OUT1A O Output pin of driver1

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Absolute Maximum Ratings Item Symbol Ratings Unit Supply voltage VCC VCC 5.5 V Input voltage VIN VCC+0.4 V Maximum output current Iout 800 mA Power dissipation Pd 870 mW Operating temperature Topr -20 ~ +85 Junction temperature Tj ~ +150 Storage temperature range Tstg -55 ~ +150 HBM KV ESD Susceptibility *2 MM 200 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 Symbol Ratings Unit Supply voltage VCC VCC +2.0 ~ +5.5 V Control input voltage VIN 0 ~ VCC V H Bridge output current Iout -400 ~ +400 mA Logic input frequency Fin 0 ~ 100 kHz

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Electrical Characteristic (Unless otherwised noted Ta=25 C , VCC= 3.0V) Values Parameter Symbol Condition Min. Typ. Max. Unit Whole circuits Circuit current at standby ICCST IN1A=IN1B=IN2A=IN2B=L 0.1 A µ Circuit current ICC IN1A=IN2B=L, IN2A=IN1B=H, No load 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 A µ L level input current IINL VIN=0V A µ Pull-down resistance RIN 1.5 MΩ Driver1,2 Output ON Resistance RON Io=+-200mA, Sum of on-resistance 1.25 1.80 Ω Thermal Protection Circuit Protection Temperature TSD 150

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Input-output logic table Input Output IN1A IN1B IN2A IN2B OUT1A OUT1B OUT2A OUT2B Mode L L L L Z Z Z Z Standby H L H L L H L H H L H L L H L H H H H H Keep the previous output state Input Output IN1A IN1B IN2A IN2B OUT1A OUT1B OUT2A OUT2B Mode L L L L Z Z Z Z Standby H L L L H L Z Z H L H L H L H L L L H L Z Z H L L H H L L H H L L H L L L H Z Z L H L H L H L H L L L H Z Z L H H L L H H L L H 1,2 phase excitation H H H H Keep the previous output state

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Typical characteristics : CH1 Forward Rotation： Output Saturatin Voltage vs. Output Current 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1 0.2 0.3 0.4 0.5 Outpput Current (A) Output Saturation Voltage (V) VCC=3V VCC=5V CH2 Forward Rotation ： Output Saturatin Voltage vs. Output Current 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1 0.2 0.3 0.4 0.5 Outpput Current (A) Output Saturation Voltage (V) VCC=3V VCC=5V CH1 Reverse Rotation： Output Saturatin Voltage vs. Output Current 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1 0.2 0.3 0.4 0.5 Outpput Current (A) Output Saturation Voltage (V) VCC=3V VCC=5V CH2 Reverse Rotation ： Output Saturatin Voltage vs. Output Current 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1 0.2 0.3 0.4 0.5 Outpput Current (A) Output Saturation Voltage (V) VCC=3V VCC=5V VCC No-load Supply Current vs. Supply Voltage 0.0 0.1 0.2 0.3 Supply Voltage (V) Supply Current (mA)

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Package Description：MSOP-10

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Package Outline: DFN-10 INCHES MILLIMETERS SYMBOL MIN MAX MIN MAX NOTES A 0.027 0.031 0.70 0.80 0.006 0.010 0.15 0.25 b 0.007 0.012 0.18 0.30 D

0.12 BSC

3 BSC

0.075 0.082 1.90 2.10 E 0.043 0.051 1.10 1.30 e

0.020 BSC

0.50 BSC

L 0.017 0.026 0.45 0.65 Reflow Profiles

2-Channel Motor Driver for DSC 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: service@aimtron.com.tw Sn-Pb Eutectic Assembly Pb-Free Assembly Profile Feature Large Body Pkg. thickness ≥2.5mm or Pkg. volume ≥350mm3 Small Body Pkg. thickness <2.5mm or Pkg. volume <350mm3 Large Body Pkg. thickness ≥2.5mm or Pkg. volume ≥350mm3 Small Body Pkg. thickness ≥2.5mm or Pkg. volume ≥350mm3 Average ramp-up rate (TL to TP) 3°C/second max. 3°C/second max. Preheat -Temperature Min(Tsmin) -Temperature Max (Tsmax) -Time (min to max)(ts) 100°C 150°C 60-120 seconds 150°C 200°C 60-180 seconds Tsmax to TL -Ramp-up Rate 3°C/second max. Time maintained above: -Temperature (TL) -Time (tL) 183°C 60-150 seconds 217°C 60-150 seconds Peak Temperature(TP) 225+0/-5°C 240+0/-5°C 245+0/-5°C 250+0/-5°C Time within 5°C of actual Peak Temperature (tP) 10-30 seconds 10-30 seconds 10-30 seconds 20-40 seconds Ramp-down Rate 6°C/second max. 3°C/second max. Time 25°C to Peak Temperature 6 minutes max. 8 minutes max. *All temperatures refer to topside of the package, measured on the package body surface.