LC898201: Drive Controller, Iris/Zoom/Focus, and Day-Night Switch

LC898201 is the appropriate motor control LSI for the surveillance camera usage, and it can drive iris, focus, zoom and Day/Night switching simultaneously. It incorporates two feedback circuits for iris and focus control, and two stepper motor control circuits for zoom and Day/Night switching. Moreover, the feedback control applies iris control, and stepper motor controls apply focus, zoom and Day/Night switching at the mode selection. Stepper motor control circuits can drive the stepping motor efficiently(It is called “ECO(GREEN)-driver”).

Features
  • Built-in equalizer circuit by digital operation- Iris control equalizer circuit- Focus control equalizer circuit (MR sensor can be connected.)- Coefficients can be set arbitrarily through the SPI interface.- Computed values in the equalizer can be monitored.
  • Built-in 3ch stepping motor control circuits (2ch are equipped with “ECO(GREEN)-driver” circuits)
  • SPI bus interface
  • PI control circuit- 30mA Sink output terminal- Built-in PI detecting function (A/D method)
  • A/D converter- 12bit (6ch): Iris, Focus, ECO, PI detection
  • D/A converter- 8bit (5ch): Hall offset, Constant current bias, MR Sensor offset, ECO offset
  • Operation Amplifier- 4ch (ECO x1, Iris control x1, Focus control x2)
  • PWM pulse generator- PWM Pulse generator for feedback control (Up to 12bit accuracy)- PWM pulse generator for stepper motor control (Up to 1024 micro steps)- PWM pulse generator for general-purpose H-Bridge (128 voltage levels)
  • Motor Driver- ch1 to ch6 : Io max=200mA- ch7 : Io max=300mA- Built-in thermal protection circuit- Built-in low-voltage malfunction prevention circuit
  • OSC (Type. 48MHz)
  • Power supply voltage- Logic unit : 2.7V to 3.6V (IO, Internal core)- Driver unit : 2.7V to 5.5V (Motor drive)
End Products
  • Surveillance cameras
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Drive Controller, Iris/Zoom/Focus, and Day-Night SwitchENA2319/D (562kB)1Aug, 2014
Package Drawings (2)
Document TitleDocument ID/SizeRevision
FBGA64 6x6113BL (58.0kB)O
TQFP64 7x7 / TQFP64932BC (59.9kB)O
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
LC898201RA-NHActivePb-free Halide freeFBGA-64113BL3Tape and Reel1000$4.7759
LC898201TA-NHActivePb-free Halide freeTQFP-64932BC3Tape and Reel1000$4.7759
Specifications
ProductVM Min (V)VM Max (V)VCC Min (V)VCC Max (V)IO Max (A)IO Peak Max (A)Step ResolutionControl TypeFeedback MethodCurrent SenseRegulator OutputFault DetectionFlyback ProtectionRDS(on) Typ (Ω)
LC898201RA-NH2.75.52.73.60.2/0.30.3/0.451/1024SPIBack EMF/SensorlessExternal ResistorThermalIntegrated Active1.3
LC898201TA-NH2.75.52.73.60.2/0.30.3/0.451/1024SPIBack EMF/SensorlessExternal ResistorThermalIntegrated Active1.3
Drive Controller, Iris/Zoom/Focus, and Day-Night Switch (562kB) LC898201
FBGA64 6x6 LC898201
TQFP64 7x7 / TQFP64 LC898201