Feature
■ Partial Resonance
   Realization of high efficiency and low noise by Partial Resonance operation
■ 900V high-voltage high-speed IGBT is used (MR40XX series)
   100V, 200V, W / W input can support high Power Supply.
■ Stand-by response (default mode)
   It has a boot mode switching function which is effective for standby reduction
■ Built-in start-up circuit eliminates start-up resistors
   After start-up, the start-up circuit is cut off,
      and the loss in the start-up circuit is reduced
■ The soft-drive circuit realizes low noise.
■ Various protection functions
   Overcurrent protection is self-resetting
   Overvoltage protection, overheat protection, latch stop

Main use
   DVD-Rec, PDP, LCD, Digital-STB, LBP, etc.

MR1722 Datasheet Information

1. To achieve high efficiency and low noise by Partial resonant operation

2. Can be reduce Power consumption during the minute load by the burst mode

3. no need to start resistance by the activation circuit built-in Unnecessary detection resistor

4. The primary current detected by using the on-resistance of the MOSFET

5. To achieve low noise by soft drive circuit

* overcurrent protection function (on-width limit, the primary current limit), overvoltage protection,
equipped with overheat protection function

* miniaturization is realized by the adoption of the new package (FTO-220 equivalent in a 5-pin)

* Achieve small part of the reduction of external components

Introduction
Development of the MR2000 Series
Energy conservation guidelines from the Ministry of Economy, Trade and Industry require a reduction in the standby Power consumption of various types of electrical products as a means of reducing environmental CO2 levels. There are strong demands for reduced Power consumption in common devices such as TVs and set top boxes (STB) which remain on standby for long periods of time, and efficient operation under micro-loads is required. Furthermore, demands for integration of the various protective functions, higher functionality, and lower price are increasing to the extent that it is now difficult to satisfy such demands with existing products.

Primary Features
1. Current consumption is reduced with use of the burst mode, promoting standby compatibility with a single converter.
2. The optimized switching device provides ideal Partial Resonance operation for high efficiency and low noise.
3. The 900V resistant switching device (high-speed IGBT) simplifies design of Power supplies for worldwide input.
4. Power consumption under micro-load is extremely low (burst mode).
5. Use of a drain kick circuit eliminates the need for a start-up resistor.
6. The use of a soft drive circuit reduces noise.
7. Incorporates an over-current protection function (primary current detect, Ton limit).
8. Incorporates over-voltage protection and thermal shutdown functions.
9. A Power Supply circuit may be configured with the minimum of external components.
10. The use of the fully molded package is beneficial for insulation design.

DESCRIPTION
iC-LQNP is a sensor for pulse and alternating light with a monolithically integrated photodiode. The device supersedes conventional photoreceivers, such as those in light barriers, for example.
Changes in the photocurrent are amplified whereas the photocurrents caused by background light are electronically suppressed with over 60 dB (at 100 Hz).

FEATURES
♦ Fast response amplifier with on-chip photodiode
♦ High interference immunity due to monolithic design
♦ Active photodiode area of ca. 1 mm²
♦ Suitable for visible light and near infrared
♦ Integrated band-pass filter with 140 kHz center frequency
♦ Maximum gain obtained for pulse light of 1.4 µs and upwards
♦ High LF and DC (ambient) light suppression
♦ Transfer characteristics irrespective of ambient light level
♦ Soft signal and noise limiter with excess ambient light
♦ Fast recovery from flashes
♦ Complementary analogue current source outputs,
   transimpedance can be set by external resistor
♦ Single 5 to 12 V Supply, low Power consumption also with
   bright ambient light
♦ Options: customised COB versions

APPLICATIONS
♦ Receiver for through beam and
   reflection light barriers with
   background suppression
   (sunlight) e.g. for presence
   detection in Power operated
   gates, doors and windows etc.

FEATURES
♦ Optimised for M-type laser diodes
   (single Supply, case grounded)
♦ CW operation up to 350 mA from a single Supply of 3.6 to 15 V
♦ Rapid soft start after Power-on
♦ Simple Power adjustment via an external resistor
♦ Integrated reverse polarity protection for the iC and laser diode
♦ Strong suppression of transients with small external
   capacitors; integrated flyback path
♦ Permanent shutdown with excessive temperature and
   overcurrent (i.e. if the laser diode is damaged or the feedback
   current path fails)
♦ Two feedback inputs permit all current laser diode types to be
   used (M/P/N configurations)
♦ Modulation via the feedback inputs possible
♦ Wide monitor current range from 2.5 µA to 6.25 mA

APPLICATIONS
♦ Blue laser diodes
♦ Laser diode Modules
♦ Laser diode pointers
♦ Laser levels
♦ Bar-code readers

FEATURES
♦ CW operation up to 300 mA from 2.4 to 15 V Supply voltage
♦ Rapid soft start after Power-on typical within 70 µs
♦ Optimised for N-type laser diodes
♦ Simple output Power adjustment via an external resistor (APC)
♦ Power control loop accuracy better than 1.5 % with changes in
   temperature, Supply voltage and load current
♦ Integrated reverse polarity protection for the iC and laser diode
♦ Strong suppression of transients with very small external
   capacitors; integrated flyback path
♦ Permanent shutdown with excessive temperature and
   overcurrent (i.e. if the laser diode is damaged or the feedback
   current path fails)
♦ Two feedback inputs permit all current LD types to be used
   (N/P/M configurations)
♦ Modulation via the feedback inputs is possible
♦ Wide monitor current range from 2.5 µA to 6.25 mA
♦ Pin compatible to iC-WK and iC-WKL (SO8 package)

APPLICATIONS
♦ Blue laser diodes
♦ LD Modules

FEATURES
♦ Laser diode driver of up to 250 mA
♦ Averaging control of laser Power
♦ Protective functions to prevent destruction of laser diode
♦ Laser-current monitor with current or voltage output
♦ Integrated RC oscillator up to 4 MHz
♦ Integrated 16:1 divider for pulse generation in the kHz range
♦ Stable 1:1 pulse duty ratio
♦ Simple adjustment of the laser Power via external resistor
♦ Soft-start at Power-on
♦ Complementary pulse repetition frequency output for ECL level
♦ Shutdown in case of overtemperature
♦ Single 5 V Power Supply
♦ Very few external components
♦ iC-VJ for laser diodes with 50 to 500 µA monitor current
♦ iC-VJZ for laser diodes with 0.15 to 1.5 mA monitor current

APPLICATIONS
♦ Transmitter for laser light barriers from 1 to 200 kHz

FEATURES
✦ Dual channel CW operation with up to 750 mA per channel
✦ Up to 1500 mA with both channels combined
✦ 2.8 V to 8 V Power Supply
✦ Operation with or without µController
✦ Individual enable input per channel
✦ Control loop accuracy better than 1%
✦ Internal programmable logarithmic monitor resistor
✦ Operating point setup with 10 bit logarithmic resolution
✦ ACC or APC mode individually configurable for each channel
✦ A/D converters for analog monitoring
✦ Serial programming interface (SPI or I²C compliant)
✦ Configuration content verification and validation
✦ Laser channel disable with programmable overcurrent
   threshold
✦ Optimized for N-type laser diodes
✦ Low drop linear regulator for 3.3 V
✦ Low current standby mode
✦ Temperature monitor
✦ Temperature range -40 . . . 85 °C

APPLICATIONS
✦ Laser diode Modules
✦ CW laser diode drivers
✦ Embedded laser diode
   controllers
✦ Safety related laser controllers

FEATURES
✦ Optimised for M-type laser diodes
   (single Supply, case grounded)
✦ CW operation up to 350 mA from a single Supply of 3.6 to 15 V
✦ Rapid soft start after Power-on
✦ Simple Power adjustment via an external resistor
✦ Integrated reverse polarity protection for the iC and laser diode
✦ Strong suppression of transients with small external capacitors;
   integrated flyback path
✦ Permanent shutdown with excessive temperature and
   overcurrent (i.e. if the laser diode is damaged or the feedback
   current path fails)
✦ Two feedback inputs permit all current laser diode types to be
   used (M/P/N configurations)
✦ Modulation via the feedback inputs possible
✦ Wide monitor current range from 2.5 µA to 6.25 mA

APPLICATIONS
✦ Blue laser diodes
✦ Laser diode Modules
✦ Laser diode pointers
✦ Laser levels
✦ Bar-code readers

FEATURES
♦ Peak value controlled laser diode driver for operation from CW
   up to 155 MHz
♦ Spike-free switching of laser currents of up to 300 mA
♦ Setting of laser Power (APC) via external resistor
♦ Optional current control (ACC)
♦ Laser current limitation
♦ LVDS/TTL switching input with TTL monitor output
♦ Low current consumption sleep-mode < 50 µA
♦ Safety shutdown with overtemperature
♦ Error signal output with overtemperature, undervoltage and
   overcurrent
♦ All current LD types can be used (N/P/M configurations)
♦ Blue laser diodes supported
♦ Fast soft-start
♦ Strong suppression of transients with small external capacitors

APPLICATIONS
♦ Pulsed and CW laser diode
   modules
♦ Laser diode pointers
♦ Laser levels
♦ Bar-code readers
♦ Distance measurement
♦ Blue laser diodes