PT5105 4+2CH DSC Motor Driver DESCRIPTION FEATURES The PT5105 is a monolithic 4-Channel 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. • 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-Voltage/ Constant-Current selected • Special Exclusive Control mode optional • Constant-Voltage set by DAC: 1.8V~4.8V 0.2V/Bit Accuracy ± 5% • Constant current set by DAC: 150mV~300mV 10mV/Bit Accuracy±5% • Under voltage lockout circuit - Shut down the internal circuit at VDD=1.8V (Typ.) • Thermal shut down circuit - Shut down the internal circuit at 150℃ Hysteresis 30℃ • Available in small package QFN20 (3mm × 3mm) The PT5105 is available in QFN20 (3mm × 3mm) package. Performance is specified for -20℃ to +85℃ temperature range. APPLICATIONS • DSC BLOCK DIAGRAM VDD Power supply VDD BIAS Low voltage detection TSD VREF (1.25V), POR Exclusive 1 Control signal IN123 Serial Interface Logic 12 SDA CS RESET RESET Serial Interface 4-Bit DAC VC12 H bridge C.V./Full ON OUT2A OUT2B PGND12 PI1 MCU OUT1B Level Shift & Pre Driver PI2 Logic 3 Serial Interface Level Shift & Pre Driver PI3 Serial Interface H bridge C.V./Full ON 4-Bit DAC OUT3A OUT3B ZOOM/IRIS (DCM/COIL) PGND3 VC3 ZOOM/IRIS (DCM/COIL) IN4A Control signal ZOOM/IRIS(STM-2) SCL Serial Interface Serial control signal OUT1A AutoFocus(STM-1) H bridge C.V./Full ON IN4B Logic 4 Serial Interface Serial Interface Level Shift & Pre Driver 4-Bit DAC VC4 H bridge 4A:C.V./C.C./ Full ON 4B:C.C. Exclusive 2 OUT4A OUT4B SHUTTER (COIL) RNF4 Notes: 1. FS=Full-swing 2. CV= Constant-Voltage 3. CC=Constant-Current Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan PT5105 ORDER INFORMATION Valid Part Number PT5105 Package Type 20 pins, QFN Top Code PT5105 PIN CONFIGURATION Note: The Exposed PAD must be connect to GND PIN DESCRIPTION Pin Name PI2 OUT1A OUT1B OUT2A OUT2B SCL SDA PI3 CS RESET OUT3A OUT3B OUT4A RNF4 OUT4B IN123 IN4A VDD IN4B PI1 PGND12/PGND3 V1.1 I/O OUT O O O O I I OUT I I O O O I/O O I I Power Supply I OUT GND Description PI2 Output CH1 output A CH1 output B CH2 output A CH2 output B Serial clock input Serial data input PI3 Output Serial data latch control Logic reset CH3 output A CH3 output B CH4 output A CH4 current sense input or Power GND CH4 output B CH1/CH2/CH3 Input Control Pin CH4 Input Control Pin Power supply（All CHs and Logic） CH4 Input Control Pin PI1 Output CH1/2 Power GND and pre driver GND 2 Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Exposed pad November 2011