PM2118 SHUNYE | Alldatasheet
Document overview
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- PDF pages: 7
Technical content
Dimmable APFC BUCK Constant Current Driver
DESCRIPTION
PM2118 is a high PF buck LED constant current driver compatible with PWM/analog dimming, it’s suitable for full range input voltage of 90Vac - 265Vac. PM2118 adopts high -voltage startup and built -in COMP compensation capacitor to reduce costs. Patented current control mechanism makes it possible to achieve excellent line and load regulation with few external components. PM2118 integrates multiple protection functions, such as output short circuit, VDD undervoltage protection and over-temperature compensation, so as to improve the reliability of LED constant current power supply. PM2118 is packaged in SOP8. FEATURE ➢ Compatible with PWM/analog dimming ➢ PWM dimming range of 1%~100% ➢ Analog dimming range of 5%~100% ➢ High PF, low THD ➢ Ultra-low standby power ➢ Built-in COMP compensation ➢ ±3% constant current of system ➢ Excellent line and load regulation ➢ VDD undervoltage protection ➢ Cycle-by-cycle current limiting ➢ Output short-circuit protection ➢ Over-temperature compensation
APPLICATIONS
➢ Smart bulb lighting ➢ Others… TYPICAL APPLICATION 4 5 8FB VDD NC HV DIM GND CS GATE AC PM2118 NA NP POWER-MICRO'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS, WITHOUT THE EXPRESS PRIOR WRITTEN APPROVAL OF THE CHIEF EXECUTIVE OFFICER GENERAL COUNSEL OF POWER MICRO-ELECTRONICS TECH CO.,LTD \` www.shunyegroup.com.cn
Dimmable BUCK APFC Constant Current Driver Page 2 of 7 DS _PM2118_CN_V1.0 PIN ASSIGNMENTS 4 5 FB VDD NC HV DIM GND CS GATE SOP8 PKG PIN DESCRIPTION PIN NUMBER PIN NAME DESCRIPTION
1 FB Output feedback
2 VDD Power supply
3 NC Floating
4 HV High voltage power supply
5 GATE GATE of MOSFET
6 CS Current sense
7 GND Ground
8 DIM PWM/Analogy dimming
PART NUMBER PACKAGE CASING PM2118 SOP8 4,000 pcs/ Tape & Reel www.shunyegroup.com.cn
Dimmable BUCK APFC Constant Current Driver Page 3 of 7 DS _PM2118_CN_V1.0 ABSOLUTE MAXIMUM RATINGS (1)(2) Symbol PIN Description Range Unit VHV 4 HV to GND -0.3~600 V VVDD 2 Power supply range -0.3~16 V VGATE 5 GATE to GND -0.3~20 V VFB 1 OVP to GND -0.3~8 V VCS 6 CS to GND -0.3~8 V VDIM 8 DIM to GND -0.3~24 V θJA --- Thermal resistance (junction to ambient, no heat sink, free air) 145 ℃/W Tstg --- Storage temperature range -55~150 ℃ Tj --- Max operating temperature range -40~150 ℃ ESD -- Human body mode ESD 2 kV Notes: (1) The “Absolute Maximum Ratings” are those values beyond which the safely to the device cannot be guaranteed and may cause permanent damage to the IC. These are stress ratings only and functional operation of the device at these or any other condition beyond those indicated in the Electrical Characteristics section of the specification is not implied. The “Electrical Characteristics” table defines the conditions for actual device operation. Exposure to absolute maximum rated conditions for extended periods ma y affect device reliability. For the parameter without Max./Min. limit, the typical value defines the operation range, the accuracy is not guaranteed by the specification. (2) All voltages are with respect to GND, unless otherwise specified. ELECTRICAL CHARACTERISTICS (3)(4) (VDD=12V, Ta=25oC unless otherwise specified) Symbol PARAMETER TEST CONDITIONS MIN TYP MAX UNIT Supply VVDD_ON IC open working voltage VDD pull-up 12 V VVDD_UVLO VDD UVLO threshold VDD pull-down 8 V VVDD_HIGH VDD charging cut-off voltage VDD pull-up 12 V VVDD_CLAMP VDD clamping voltage IDD=1mA 15 V IDD VDD working current FSW=50KHz 0.4 0.55 mA IST IC standby current DIM=0 15 30 μA www.shunyegroup.com.cn
Dimmable BUCK APFC Constant Current Driver Page 4 of 7 DS _PM2118_CN_V1.0 ELECTRICAL CHARACTERISTICS (continued) (3)(4) (VDD=12V, Ta=25oC unless otherwise specified) Symbol PARAMETER TEST CONDITIONS MIN TYP MAX UNIT High Voltage Supply VHV_BR IC turn on voltage 600 V Current Sense VREF Reference voltage 0.291 0.3 0.309 V VCS_LIMIT CS sampling clamping voltage 1.8 V TLEB Leading-edge-blanking time 300 nS TDELAY Turn off delay time 200 nS Analogy Dimming Control VDIM_ON DIM enable threshold 0.4 V VDIM_OFF DIM turn-off threshold 0.36 V VDIM DIM linear range 0.4 2 V RPD_DIM DIM pull-down resistance 180 kΩ PWM Dimming Control VPWM_ON PWM high level threshold PWM pull-up 2.2 V VPWM_OFF PWM low level threshold PWM pull-down 0.25 V FPWM PWM frequency range 500 4000 Hz Output Sampling TFB_OVP FB OVP threshold 1.5 V Oscillator TON_MAX Maximum turn-on time 27 uS TOFF_MAX Maximum turn-off time VCS>0.5V 170 uS TOFF_MIN Minimum turn-off time 3.5 uS Over Thermal Compensation TOTC OTC Reference 150 ℃ Notes: (3) Typical values in electrical characteristics are theoretical values of design, minimum and maximum values are guaranteed by test statistics. (4) The data is based on the results of PME laboratory tests. www.shunyegroup.com.cn
Dimmable BUCK APFC Constant Current Driver Page 5 of 7 DS _PM2118_CN_V1.0 BLOCK DIAGRAM UVLO & Vref HV Power SuppyHV Vref VDD Control Logic Ton Modulation DriverDimming Control Voltage Reference Thermal Regulation OVP DemagToff Modulation LEBOCPIout Calculation Toff_maxToff_min DIM GATE CS FB Gm Ton_max GND www.shunyegroup.com.cn
Dimmable BUCK APFC Constant Current Driver Page 6 of 7 DS _PM2118_CN_V1.0 www.shunyegroup.com.cn
Dimmable BUCK APFC Constant Current Driver Page 7 of 7 DS _PM2118_CN_V1.0 VERSION INFORMATION Modify Version Change Note 2022-12-22 Draft First release 2023-11-17 V1.0 Optimize part of the format P.S.: (1) Power-Micro Semi reserves the final right to interpret the terms and conditions of this content. (2) Purchasers must request the latest version datasheet from Power-Micro Semi before placing orders. www.shunyegroup.com.cn