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Technical content

Datasheet sections

  • 7.1 DRIVING MODES OF CHANNELS
  • 7.2 CONTROL-PIN SELECTION OF IN3, IN4, IN5, AND IN6 FUNCTIONS
  • 8.1 SERIAL CONTROL FUNCTION TABLE
  • 8.2 EXAMPLE OF OPERATION IN DECELERATION TO A STOP
  • 8.3 TIMING OF MOB OUTPUT
  • 8.4 MOTOR PHASE CORRECTION FUNCTION
  • 9.1 OPERATION CONTROL
  • 9.2 OPERATION PROCEDURE
  • 9.3 RESTRICTIONS ON REGISTER SETTING DURING MOTOR CONTROL
  • 12.1 SWITCHING CHARACTERISTICS WAVEFORMS
  • 12.2 PI RESPONSE CHARACTERISTIC

DESCRIPTION

The PT5111 is a semiconductor integrated circuit that incorporates driver circuits suitable for the motors of digital cameras. The current consumption can be hold at quite low level during standby or operation. And the active power supply volt age range for VM is from 2.7~5.5V. So the device is ideal for portable and battery powered applications. The PT5111 is available in QFN40 (5mm × 5mm) package. Performance is specified for -40℃ to +85℃ temperature range. APPLICATION  DSC/DV

FEATURES

 An ultra-fine CMOS process has been adopted for low power consumption in a design.  A small 40-pin QFN package(5mm×5mm, lead pitch is 0.4 mm)has been adopted.  1ch/2ch and 3ch/4ch are capable of micro-steps mode. Possible modes are from 2-2 phase stepper drive to maximum 256 resolution micro-steps.  Built-in autonomous drive circuit under the control of serial settings.  Built-in 3-ch PI driver  Under voltage lockout circuit - Shut down the internal circuit at VCC=1.8V (Typ.)  Thermal shut down circuit - Shut down the internal circuit at 150℃ Hysteresis 30℃  Power supply systems are all internally isolated and include a function to prevent reverse current between power supplies.  Built-in exclusive control mode from channel 3 to channel 6.(resemblance 7 channel motor drive application) BLOCK DIAGRAM Exclusive Control Serial Control Logic 1CH BTLAMP H Bridge 2CH BTLAMP H Bridge 3CH BTLAMP H Bridge 4CH BTLAMP H Bridge PGND12 OUT1A OUT1B VM12 OUT2A OUT2B OUT3A OUT3B VM34 OUT4A OUT4B PGND34 Resolution of up to 256 mocro-step 5CH FS/CC H BridgeOUT5A OUT5B VM5 PGND5(RNF5) 6CH CC H BridgeOUT6A OUT6B VM6 RNF6 EXT2/ST2 EXT1/ST1 MOB2 MOB1/SDO OSCIN SDAT SCLK CS RESET PI1 PI2 PI3 IN3 IN4 IN5 IN6BIAS Low voltage detection TSD VREF(1.25V) DAC PWM Control VCC Power supply 2.7~3.6V 10uF VCC Shutter Control Reset H:Active L:Standby Serial Control (3wire) Base Clock Control MCU SHUTTER (COIL) ( ) ZOOM (COIL) IRIS (STM) AF (STM) VM Power supply DGND 10uF

V1.6 3 December 2017 1. ORDER INFORMATION Valid Part Number Package Type Top Code PT5111 40 Pins, QFN PT5111 2. PIN CONFIGURATION

V1.6 4 December 2017 3. PIN DESCRIPTION Pin Name I/O Description Pin No. MOB1/SDO O MOB (SDO) output 1 EXT1/ST1 O EXT (ST) output 2 OUT2B O CH2 output B 3 PGND12 GND CH1/2 power GND 4 OUT2A O CH2 output A 5 VM12 Power Supply CH1/2 Power supply 6 OUT1B O CH1 output B 7 PGND12 GND CH1/2 power GND 8 OUT1A O CH1 output A 9 DGND GND Control GND 10 PI1 O PI1 output 11 VCC Power Supply Small signal power supply 12 RESET I Logic reset 13 OUT6B O CH6 output B 14 RNF6 GND CH6 current sense input or power GND 15 OUT6A O CH6 output A 16 VM6 Power Supply CH6 power supply 17 IN6 I Channel 5 and 6 control 18 IN5 I Channel 5 and 6 control 19 OSCIN I Clock 20 PI3 O PI3 output 21 OUT5B O CH5 output B 22 PGND5(RNF5) GND CH5 current sense input or power GND 23 OUT5A O CH5 output A 24 VM5 Power Supply CH5 Power supply 25 SDAT I Serial data input 26 SCLK I Serial clock input 27 CS I Serial data latch control 28 IN4 I Channel 4, 5 and 7 control 29 IN3 I Channel 3, 4, 5 and 7 control 30 PI2 O PI2 output 31 OUT4B O CH4 output B 32 PGND34 GND CH3/4 power GND 33 OUT4A O CH4 output A 34 VM34 Power Supply CH3/4 power supply 35 OUT3B O CH3 output B 36 PGND34 GND CH3/4 power GND 37 OUT3A O CH3 output A 38 EXT2/ST2 O EXT (ST) output 39 MOB2 O MOB output 40

V1.6 72 December 2017 IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian Dist., New Taipei City 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw