MP4001DS-LF

MP4001 Universal Input High Brightness White LED Driver DESCRIPTION FEATURES The MP4001 is a high efficiency step-down converter designed for driving the high brightness Light Emitting Diodes (LEDs).            The MP4001 drives external MOSFET with boundary conduction mode which features no reverse recovery loss in the freewheeling diode, soft turn on with zero-current and valley voltage for the power MOSFET. Such operation mode can achieve very high efficiency and in the same time minimize the inductor value and size. With the boundary conduction control mode, the LED current can be well regulated by control the MOSFET peak current which is sensed through an external resistor. Its low 300mV feedback voltage reduces power loss and improves the efficiency. Constant-current LED Driver Universal AC Input (85VAC-305VAC) Power MOSFET Zero-Current Turn On High Efficiency Boundary Mode Operation Integrated High-voltage Smart LDO Low 1mA Operation Current PWM or DC Input Burst Dimming Control Hiccup Short Circuit Protection Maxim Frequency Limited to 110kHz Thermal Shutdown Available in SOIC8 Package APPLICATIONS       The MP4001 integrates a high-voltage smart LDO, which allows the AC input to power up the IC directly. The smart LDO sinks current when the input voltage is lower than 24V to achieve higher efficiency. Non-Isolated Lighting General Illumination Industrial Lighting Automotive/ Decorative LED Lighting LCD TV Backlighting DC/DC or AC/DC LED Driver Applications All MPS parts are lead-free and adhere to the RoHS directive. For MPS green status, please visit MPS website under Products, Quality Assurance page. The MP4001 implements both PWM and DC input burst dimming The MP4001 features output short protections, maximum switching frequency limitation, under-voltage lockout and thermal shut down. “MPS” and “The Future of Analog IC Technology” are Registered Trademarks of Monolithic Power Systems, Inc. TYPICAL APPLICATION + Cin Vbus LEDs - AC input + D Cout Vin IN VCC Vsw C1 Vout - L MP4001 DIM DIM DRIVE BOS CBOS GND MOSFET Q1 CS Rsense MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 1 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER ORDERING INFORMATION Part Number* MP4001DS Package SOIC8 Top Marking MP4001 *For Tape & Reel, add suffix –Z (eg. MP4001DS-Z) For RoHS Compliant Packaging, add suffix –LF (eg. MP4001DS–LF–Z) PACKAGE REFERENCE ABSOLUTE MAXIMUM RATINGS (1) Thermal Resistance (4) IN ................................................ -0.5V to 500V VCC, DRIVE ................................... -0.3V to 11V DIM, BOS, CS, VS ......................... -0.3V to 6.5V Continuous Power Dissipation (TA=25°C) (2) SOIC8………………………………………..1.3W Junction Temperature ...............................150°C Lead Temperature ....................................260°C Storage Temperature ............... -55°C to +150°C SOIC8 ..................................... 96 ...... 45 ... C/W Recommended Operating Conditions (3) IN Supply 50/60Hz AC RMS Voltage ............................. 12V to 350V IN Supply DC Voltage ..................... 12V to 450V VCC, DRIVE……………………….-0.3V to 10.5V Operating Junct. Temp(TJ)...... –40°C to +125°C θJA θJC Notes: 1) Exceeding these ratings may damage the device. 2) The maximum allowable power dissipation is a function of the maximum junction temperature TJ (MAX), the junction-toambient thermal resistance θJA, and the ambient temperature TA. The maximum allowable continuous power dissipation at any ambient temperature is calculated by PD (MAX) = (TJ (MAX)TA)/θJA. Exceeding the maximum allowable power dissipation will cause excessive die temperature, and the regulator will go into thermal shutdown. Internal thermal shutdown circuitry protects the device from permanent damage. 3) The device is not guaranteed to function outside of its operating conditions. 4) Measured on approximately 1” square of 1 oz copper. MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 2 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER ELECTRICAL CHARACTERISTICS VIN =24VDC, no load on pin Drive, TA = +25C, unless otherwise noted. Parameters Input with An AC Voltage Input with A DC Voltage Input Supply Current (Quiescent) Input Supply Current (Operation) Symbol Condition 350 450 V V VDIM = 0V 0.64 mA IINRUN VDIM = 5 V 1 mA 9.8 8.9 8.5 0.88 7.25 1 V V V V V V V V I DIM_PULL_UP VDIM=0V BOS Charge Current IBOS Gate Drive Source Current Gate Drive Sink Current Drive Low Level Output Voltage Drive High Level Output Voltage to Rail Gate Minimal Turn-on Time Maxim Switching Frequency Over Temperature Protection Threshold Over Temperature Protection Threshold Hysteresis Output Short Shut Down Time Units IINQS DIM Pull up Current VBOSH TPWM_ON_PD TPWM_OFF_PD VRS 9 9 Max 50/60Hz AC RMS at Pin IN A DC voltage at Pin IN VIN=14-24V, VCC Peak Voltage VIN=14-24V, VCC Valley Voltage VIN=10.5V or VIN=35V CS Bias Current Typ VINAC VINDC VCCH VCC Internal Regulated Voltage VCCL VCC VCC Hysteresis VCCHYS VCC UVLO VCCUVLO VCC UVLO Hysteresis VCCUVLO_HYS DIM Input High VDIMH DIM Input Low VDIML BOS High Threshold PWM Dimming on Propagation Delay PWM Dimming off Propagation Delay CS Pin Reference Voltage Turn-off Propagation Delay Leading Edge Blanking Time Min 6.5 VDIM rising, VBOS=1.2V VDIM falling, VBOS=1.2V BOS connect with a capacitor PWM rising edge to Drive rising edge PWM falling edge to Drive falling edge VDIM=VCC, @TA = -40°C to +85°C 8 1.5 0.9 A 10 3 4 5 2.1 2.42 2.6 270 tOFF_PD tLEB 290 ICS -1 A V 540 ns 3 µs 300 330 100(4) 450 mV ns ns 1 IDRV_SOURCE IDRV_SINK VDRVL VDRV=0V VDRV=VCC IDRV=10mA 400 -1.2(5) 43 A mA A mV VDRVH IDRV=-10mA 110 mV (5) 400(5) tON_MIN fSW_MAX 110 (5) ns kHz TOTP 150 C TOTP_HYS 30 C 1.7 ms tSD_SHORT When short circuit occurs Notes: 5) Guarantee by design. MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 3 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER PIN FUNCTIONS Pin # Name Description 1 DRIVE External MOSFET drive output. The zero current crossing signal is detected from this pin. 2 CS LED current sense input. Connect the current sense resistor that programs the LED current. 3 BOS Burst Oscillator Setting. For the DC input burst dimming, connect a capacitor from this pin to GND to program the burst dimming frequency. For the external PWM dimming, connect a resistor such as 300kΩ from this pin to GND and apply the logic signal to the DIM pin. 4 GND Ground. 5 DIM Dimming Control Input. For DC input burst dimming control, the voltage of 0V to 2.42V at DIM pin linearly sets the burst-mode duty cycle from minimum to 100%. For external PWM dimming control, connect the PWM signal to DIM pin. Open DIM pin or pull it high if no dimming control is applied. 6 IN 7 VCC 8 VS MP4001 Rev 1.02 5/1/2018 Input Supply Pin. By connecting the IN pin to AC input as power source of VCC. Internal regulated supply voltage output. Must be locally bypassed. The VCC voltage provides the power for IC logic and driving external MOSFET. Test pin. Connect to GND for normal operation. www.MonolithicPower.com MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 4 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER TYPICAL PERFORMANCE CHARACTERISTICS VIN =90-265VAC, VLED=10-30V, 3-9LEDS, ILED=350mA, TA = +25C, unless otherwise noted. MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 5 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN =90-265VAC, VLED=10-30V, 3-9LEDS, ILED=350mA, TA = +25C, unless otherwise noted. MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 6 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN =90-265VAC, VLED=10-30V, 3-9LEDS, ILED=350mA, TA = +25C, unless otherwise noted. MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 7 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER TYPICAL PERFORMANCE CHARACTERISTICS (continued) VIN =90-265VAC, VLED=10-30V, 3-9LEDS, ILED=350mA, TA = +25C, unless otherwise noted. MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 8 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER FUNCTIONAL BLOCK DIAGRAM + AC In IN Max Off Time Control LDO VCC UVLO Thermal Protection Output Short Protection Control and Protection Circuit Max Frequency Control ZCD Circuit Drive BOS DRIVE Burst Oscillator Vref Filter and LEB DIM CS GND Figure 1: Function Block Diagram. MP4001 Rev. 1.02 www.MonolithicPower.com 5/1/2018 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2018 MPS. All Rights Reserved. 9 MP4001 – UNIVERSAL INPUT HIGH BRIGHTNESS WLED DRIVER OPERATION Internal Regulator MP4001 employs a high-voltage with 500V break down voltage JFET circuit, which allows the universal AC line input to power the IC directly. The MP4001 integrated a smart LDO which conducts only when the voltage on IN pin is lower than 24V. With such smart LDO design, the IC power dissipation is significantly reduced and high frequency operation is feasible. The output waveform of VCC voltage is a sawtooth wave when this LDO is active, the peak and valley value of this sawtooth wave are 9.8V and 8.9V. To avoid the risk that the VCC voltage drops too low to cause the driving capability of DRIVE signal, the MP4001 integrated another LDO to regulate the VCC voltage to 8.5V. The following figure shows the structure of internal LDO. High Voltage Switch 3. the VCC voltage can NOT drop to lower than VCC UVLO value. The following is to follow these limitations (9.8V  8.9V)  VCC  (9.8V  8.5V) 1 t  2*f line I VCC  IQ  f s *Qg CVCC * VCC  I VCC t Where, fline is frequency of AC input, IQ is the quiescent current of MP4001, fs is switching frequency, Qg is the total gate charge of Power MOSFET. For most application a capacitor is recommended. 10uF-22uF VCC MP0 24V 14V VCC VIN 9.8V 8.9V 8.5V MP0 Active: 14V