PT5103 4CH DSC Motor Driver DESCRIPTION FEATURES The PT5103 is a monolithic 4-Channnel CMOS H-bridge motor driver. It can drive one stepper motor, two DCM and two coils. There also are several other flexible system solutions left to be utilized. The current consumption can be hold at quite low level during standby or operation. And the active power supply voltage range is from 2.7~5.5V. So the device is ideal for portable and battery powered applications. • Low on-resistance < 1.2Ω (typ.) • Independent 4channel H-bridge, 3 full-swing drivers and 1 constant-current driver, all of those drivers with brake function. • Versatile and flexible control mode - DC/stepper motor alternative, Full-swing /Constant-Current selected • Special Exclusive Control mode optional • Serial Control mode and Parallel Control mode • Serial data input clock’s frequency: 6.2MHz MAX • Constant current set by DAC: 150mV~300mV 10mV/Bit Accuracy±5% • Under voltage lockout circuit - Shut down the internal circuit at VCC=1.8V (Typ.) Hysterisis 0.2V • Thermal shut down circuit - Shut down the internal circuit at 150℃ Hysterisis 30℃ • Available in small package QFN, 20 pins (3 x 3mm) The PT5103 is available in QFN20 (3mm × 3mm) package. Performance is specified for -20℃ to +75℃ temperature range. APPLICATION • DSC BLOCK DIAGRAM Vcc Power supply 10uF VCC DGND BIAS Low voltage detection TSD VM Power supply 10uF OUT1A OUT1B SDK VM12 Serial control signal SCLK CS PS PS Serial Interface MCU Logic 2 Level Shift & Pre Driver H bridge FS OUT2A AutoFocus(STM-1) Logic 1 H bridge FS Level Shift & Pre Driver OUT2B PGND12 Exclusive 1 Logic 3 Level Shift & Pre Driver H bridge FS OUT3A OUT3B ZOOM/IRIS (DCM/COIL) ZOOM/IRIS (DCM/COIL) PGND3 PWM PWM VM34 Logic 4 Serial Interface Level Shift & Pre Driver 4Bit DAC OUT4A H bridge CC./FS OUT4B SHUTTER (COIL) VC4 RNF4 Notes: 1. FS=Full-swing 2. CC=Constant-Current Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT5103 TYPICAL APPLICATION V1.0 2 January 2010 PT5103 ORDER INFORMATION Valid Part Number PT5103 Package Type 20 Pins, QFN Top Code PT5103 PIN CONFIGURATION Note: The Exposed PAD must be connect to GND PIN DESCRIPTION Pin Name PS CS SCLK SDAT OUT1A PGND12 OUT1B VM12 OUT2A OUT2B VCC PWM DGND OUT3A PGND3 OUT3B VM34 OUT4A OUT4B RNF4 PGND12 V1.0 I/O I I I I O GND O Power Supply O O Power Supply I GND O GND O Power Supply O O I/O GND Description Power save Serial data latch control Serial clock input Serial data input CH1 output A CH1/2 Power GND CH1 output B CH1/2 Power supply CH2 output A CH2 output B Small signal power supply Parallel Input Control Small signal block ground CH3 output A CH3 Power GND CH3 output B CH3/4 Power Supply CH4 output A CH4 output B CH4 current sense input or Power GND CH1/2 Power GND 3 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Bottom January 2010