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

Datasheet: Drive Controller, Iris/Zoom/Focus, and Day-Night Switch
Rev. 1 (562kB)
Product Overview
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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
Technical Documentation & Design Resources
Data Sheets (1) Package Drawings (2)
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
LC898201RA-NH Obsolete
Pb-free
Halide free
LC898201 FBGA-64 113BL 3 260 Tape and Reel 1000  
LC898201TA-NH Active
Pb-free
Halide free
LC898201 TQFP-64 932BC 3 260 Tape and Reel 1000 Contact Sales Office
Market Leadtime (weeks) : Contact Factory
Market Leadtime (weeks) : Contact Factory

Product
Description
Pricing ($/Unit)
Compliance
Status
VM Min (V)
VM Max (V)
VCC Min (V)
VCC Max (V)
IO Max (A)
IO Peak Max (A)
Step Resolution
Control Type
Current Sense
Fault Detection
Package Type
LC898201TA-NH  
Pb
H
 Active   
2.7
5.5
2.7
3.6
0.2/0.3
0.3/0.45
1/1024
SPI
External Resistor
Thermal
TQFP-64
Case Outlines
932BC    113BL   
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