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INTELLIGENT LIGHTING
( OZ9950, OZ9951, OZ9953, OZ9954, OZ9955, OZ9956A, OZ9957, OZ9958, OZ9959, OZ964, OZ9910A, OZ9913, OZ9918, OZ9924, OZ9925, OZ9926, OZ9926A, OZ9928, OZ9935, OZ9936, OZ9937, OZ9938, OZ9939, OZ9970, OZ9921, OZ9922, OZ70, OZ71, OZ72, OZ9982 )
O2Micro® offers a family of Intelligent Lighting backlight CCFL, EEFL, FFL, and LED controllers ideal for various sizes of LCD display applications such as desktop monitors, televisions, notebooks, global positioning system (GPS), and other mobile applications.

WHITE LED ICs
( OZ9950, OZ9951, OZ9953, OZ9954, OZ9955, OZ9956A, OZ9957, OZ9958, OZ9959 )
FEATURES (OZ9950, OZ9951)
- High efficiency DC/DC step up converter controller for white LED drivers
- 1.8V to 5.5V input voltage range
- PWM or Analog dimming control
- Over-voltage protection
- Soft start
- Low standby current
- OZ9950: 8 MSOP and SOP packages, lead-free
OZ9951: 8 SOP package, lead-free
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FEATURES (OZ9953)
- Three string LED controller
- High frequency DC/DC power converter for LED backlight applications
- Integrated LED current balance control circuit
- 4V to 25V input voltage range
- Up to 1.0MHz switching frequency
- Up to 350mA LED current per string
- External PWM dimming control
- Over-voltage, short circuit, and over-current protection
- Soft start
- Low standby current
- 20 SSOP package, lead-free
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FEATURES (OZ9954)
- Four string LED Controller
- High frequency DC/DC power converter for LED backlight application
- 4V to 40V input voltage range
- Integrated LED current balance control circuit
- Over-voltage and over load protection
- Up to 1MHz switching frequency
- Up to 350mA per string
- External PWM dimming control
- Over-voltage, short circuit, and over-current protection
- Soft start
- Low standby current
- 20 SSOP package, lead-free
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FEATURES (OZ9955)
- Eight string LED controller
- High frequency DC/DC power converter for LEDs
- Integrated LED current balance control circuit
- Integrated power MOSFET
- 5V to 33V input voltage range
- Up to 2.0MHz switching frequency
- 10mA to 30mA LED current per string
- Supports internal or external PWM dimming
- Over-voltage and over-current protection
- Soft start
- Low standby current
- 28 QFN package, lead-free
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FEATURES (OZ9956A)
- Six string LED controller
- High frequency DC/DC power converter for LEDs
- Integrated LED current balance control circuit
- Integrated power MOSFET
- 4V to 25V input voltage range
- Up to 2.0MHz switching frequency
- 10mA to 30mA LED current per string
- Supports analog or external PWM dimming
- Over-voltage and over-current protection
- Soft start
- Low standby current
- 20 QFN package, lead-free
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FEATURES (OZ9957)
- High frequency DC/DC power converter for white and RGB LEDs
- 4.5V to 30.0V input voltage range
- Up to 600KHz switching frequency
- System synchronization
- Synchronization for multiple ICs
- Drives 1 or more strings
- External PWM dimming
- Adjustable PWM phase-shift for dimming control
- Over-voltage, over-current, and open-lamp protection
- Shutdown delay timer
- Soft start
- Low standby current
- 16 SOP package, lead-free
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FEATURES (OZ9958)
- High frequency DC/DC power converter for LEDs
- 5V to 27V input voltage range
- Up to 600KHz switching frequency
- Drives up to 20 LEDs in series, 3 strings in parallel
- Up to 110mA per string
- Analog or external PWM dimming
- Over-voltage protection
- Over-current protection with delay timer
- Soft start
- Low standby current
- 16 QFN and SSOP packages, lead-free
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FEATURES (OZ9959)
- Six string, SMBus LED controller
- SMBus version 2.0 compliant
- Supports SMBus protocol dimming control
- Supports SMBus, DPST and SMBus+DPST brightness control modes
- 256 step dimming control
- High frequency DC/DC power converter for LEDs
- Integrated LED current balance control circuit
- Integrated power MOSFET
- Drives up to 6 strings in parallel
- Over-current, over-voltage, over temperature protection
- Soft start function
- 20 QFN package, lead-free
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CCFL/EEFL INVERTER CONTROLLERS
( OZ964, OZ9910A, OZ9913, OZ9918, OZ9924, OZ9925, OZ9926, OZ9926A, OZ9928, OZ9935, OZ9936, OZ9937, OZ9938, OZ9939, OZ9970 )
FEATURES (OZ964)
- High efficiency, zero-voltage switching, full bridge topology
- Constant operating frequency
- Built-in PWM dimming control with wide dimming range
- Soft start function
- Built-in intelligence for ignition and normal operation of CCFLs
- Built-in open-lamp and over-voltage protection
- Shutdown delay for input voltage brownout condition
- Supports positive impedance (dark effect) lamps during ignition
- Built-in under-voltage lockout protection
- Toggle pin to reset the IC after shutdown
- 20 SOP and SSOP packages, lead-free
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FEATURES (OZ9910A)
- Controller for high-voltage DC/DC and DC/AC converters
- High-efficiency, zero voltage switching dual forward controller
- Supports positive impedance (dark effect) lamps during ignition
- Feed forward compensation
- Combined analog and/or PWM control modes for wide-range load regulation
- Supports wide input voltage range
- Constant operating frequency
- Soft start function
- Built-in open-load, over-voltage, and over-current protection
- Built-in under-voltage lockout function
- Shutdown delay timer
- 16 SOP and TSSOP packages, lead-free
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FEATURES (OZ9913)
- Wide input voltage range: 4.5V ~ 25V
- Phase shifted full bridge driving topology
- VIN feed-forward compensation for driver output overlap ratio
- Built-in high side power MOSFET driver
- Supports both internal and external PWM dimming
- Adjustable PWM dimming polarity
- Closed loop over-voltage protection
- Striking and open-lamp protection
- Shutdown delay timer
- 20 SOP and SSOP packages, lead-free
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FEATURES (OZ9918)
- SMBus version 1.1 compliant
- Supports SMBus protocol dimming control
- Supports ALS, ALS+DPST, SMBus, DPST and SMBus + DPST brightness modes
- 256 step dimming control
- Wide input range
- Constant operating frequency
- Soft start function
- Built-in intelligence to manage ignition and normal operation of CCFLs
- Built-in open-lamp and over-voltage/over-current protection
- User-defined striking timer and shutdown delay timer
- Integrated high-side N MOSFET driver
- High drive capability
- 24 SSOP package, lead-free
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FEATURES (OZ9924)
- High efficiency, zero-voltage switching
- Constant operating frequency
- Built-in PWM dimming control with wide dimming range
- Soft start function
- Built-in intelligence for ignition and normal operation of CCFLs
- Built-in open-lamp and over-voltage protection
- Shutdown delay for input voltage brownout condition
- Supports positive impedance (dark effect) lamps during ignition
- Built-in under-voltage lockout protection
- Toggle pin to reset the IC after shutdown
- 20 SOP and SSOP packages, lead-free
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FEATURES (OZ9925)
- Supports off-line applications
- Constant operating frequency
- Support positive impedance (dark effect) lamps during ignition
- Combined analog and PWM dimming control with wide dimming range
- Built-in intelligence for ignition and normal operation of CCFLs
- Built-in open-lamp and over-voltage/current protection
- Optimized soft start function
- 16 SOP package, lead-free
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FEATURES (OZ9926)
- Full-bridge or dual-forward topology
- Integrated high-side N MOSFET driver
- High drive capability
- System synchronization
- Synchronization for multiple ICs
- Supports Limited Current Circuit (LCC)
- Dedicated pins for Analog and LPWM dimming
- Selectable PWM dimming polarity
- Soft start function
- Constant operating frequency
- Built-in intelligence to manage ignition and normal operation of CCFLs
- Open-lamp, over-voltage, over-current, and under-voltage lockout protection
- User-defined striking and shutdown delay timers
- 24 SSOP package, lead-free
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FEATURES (OZ9926A)
- VREF and SYNC-RPT noise immunity and lamp current symmetry for start-up
- Full-bridge or dual-forward topology
- Integrated high-side N MOSFET driver
- High drive capability
- System synchronization
- Synchronization for multiple ICs
- Supports Limited Current Circuit (LCC)
- Dedicated pins for Analog and LPWM dimming
- Selectable PWM dimming polarity
- Soft start function
- Constant operating frequency
- Built-in intelligence to manage ignition and normal operation of CCFLs
- Open-lamp, over-voltage, over-current, and under-voltage lockout protection
- User-defined striking and shutdown delay timers
- 24 SOP and SSOP packages, lead-free
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FEATURES (OZ9928)
- Dual CCFL inverter controller
- Synchronization for multiple ICs
- Supports differential drive
- 180 degree phase-shift PWM dimming
- Mixed-mode dimming control
- Selectable shutdown protection mode
- User-defined ignition and shutdown delay timers
- Built-in intelligence for ignition and normal operation of CCFLs
- Built-in open-lamp and over-voltage protection
- Integrated high-side N MOSFET driver
- High drive capability
- Supports wide input range and system synchronization
- Constant operating frequency
- 30 SSOP package, lead-free
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FEATURES (OZ9935)
- VSYNC synchronization for LPWM dimming frequency
- Independent PWM and analog dimming control
- Supports positive impedance (dark effect) lamps during ignition
- Constant operating frequency
- Built-in intelligence for ignition and normal operation of CCFLs
- User-defined ignition and shutdown delay timers
- Built-in open-lamp and over-voltage protection
- Optimized soft start function
- 16 SOP package, lead-free
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FEATURES (OZ9936)
- Low cost LCD monitor inverter solution
- Constant operating frequency
- Supports positive impedance (dark effect) lamps during ignition
- Built-in intelligence for ignition and normal operation of CCFLs
- Built-in striking and shutdown delay timer
- Built-in open-lamp and over-voltage protection
- Optimized soft start function
- Supports both analog and external PWM dimming control
- 8 PDIP and SOP packages, lead-free
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FEATURES (OZ9937)
- Universal LCDM CCFL Inverter
- Supports positive impedance (dark effect) lamps during ignition
- Independent PWM and analog dimming control
- Operating frequency compensation
- User-defined PWM dimming frequency
- User-defined striking and normal operating frequency
- Built-in open-lamp and over-voltage protection
- User-defined ignition and shutdown delay timers
- Optimized soft start function
- 16 SOP package, lead-free
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FEATURES (OZ9938, OZ9939)
- PWM dimming polarity
- OZ9938: Positive
- OZ9939: Negative
- Constant operating frequency
- Supports positive impedance (dark effect) lamps during ignition
- User-defined ignition and shutdown delay timers
- Multiple mode dimming control
- Built-in intelligence for ignition and normal operation of CCFLs
- Built-in open-lamp and over-voltage protection for backlight system
- Optimized soft start function
- 16 DIP and SOP packages, lead-free
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FEATURES (OZ9970)
- Positive PWM dimming polarity
- Constant operating frequency
- Drives positive/negative impedance lamps during ignition
- High drive current for external MOSFETs
- User-defined ignition and shutdown delay timers
- Multiple mode dimming control
- Built-in intelligence for ignition and normal operation of CCFLs
- Built-in open-lamp and over-voltage protection for backlight system
- Optimized soft start function
- 16 SOP package, lead-free
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POWER MANAGEMENT ICs ( OZ9921, OZ9922 )
FEATURES (OZ9921)
- Five channel DC/DC controller
- Main Buck Converter
- Second Buck Converter
- Boost Converter
- Second Boost Converter
- Buck-Boost Converter
- Over load protection
- Soft start function
- Over-voltage and over-current protection
- 28 QFN and SOP packages, lead-free
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FEATURES (OZ9922)
- Integrated LCD panel power management controller
- Input voltage range: 6V to 27V
- DC/AC inverter controller
- Main Buck Converter
- Second Buck Converter
- Three general purpose user-configurable Boost Converters and/or Buck-Boost converters
- Over-voltage and over load protection
- Soft start
- 48 LQFP package, lead-free
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LIGHT SENSORS ( OZ70, OZ71, OZ72 )
FEATURES (OZ70/71BG/72R)
- Monolithic IC consisting of photodiode and current amplifier
- Supply voltage range: 3.3V to 5.5V
- Wide dynamic range
- Low standby current
- Linear output light source
- 1206 SMD package, lead-free
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MOSFET DRIVERS ( OZ9982 )
FEATURES (OZ9982)
- High peak output current
- Optimized Break-Before-Make (BBM)
- 38V floating capability of BST pin
- Ultra Low current consumption in disable state
- 16 SOP package, lead-free
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