TS19320CS Taiwan Semiconductor Phase-Cut Dimmable Flyback or Buck-Boost Current Control with Active PFC for LED lighting DESCRIPTION FEATURES The TS19320CS is a phase-cut (TRIAC) dimmable ● ● ● ● ● ● ● ● ● ● ● ● ● Constant current accuracy <±5% Flyback or Buck-Boost w/o photocoupler Good dimmer compatibility for 120/230VAC Lamps Boundary-mode PFC operation Built-in active power factor correction High voltage (500V) startup circuit Open-LED demagnetization (DMG) protection VCC over-voltage protection (OVP) Over-temperature protection (OTP) Shorted-LED Protection Cycle-by-cycle current limit Gate drive voltage clamping Compliant to RoHS Directive 2011/65/EU and in accordance to WEEE 2002/96/EC. ● Halogen-free according to IEC 61249-2-21 constant current control IC with active power factor correction isolated or non-isolated AC-DC LED lighting control. The TS19320CS is configurable as an isolated, primary-side-regulated Flyback controller or non-isolated Buck-Boost converter. It is compatible with many types of TRIAC dimmers including leadingedge and trailing-edge. The IC achieves a high power factor and low total harmonic distortion (THD) and guarantees constant current accuracy to <±5% using Boundary Conduction Mode (BCM) operation. The TS19320CS has built-in protection circuits such as gate voltage clamping, over temperature protection by current degeneration, VCC overvoltage protection and system output open/short circuit protection. APPLICATION ● LED lighting ● Down lights, Tube lamps, PAR Lamps, Bulbs SOP-8 Pin Definition: 1. HV 8. GND 2. RT 7. OUT 3. CS 6. VCC 4. COM 5. DMG Notes: MSL 3 (Moisture Sensitivity Level) per J-STD-020 TYPICAL APPLICATION CIRCUIT Flyback Converter Buck-Boost Converter 1 Version: A1602 TS19320CS Taiwan Semiconductor ABSOLUTE MAXIMUM RATINGS (TA = 25°C unless otherwise specified) (Note 1) PARAMETER SYMBOL LIMIT UNIT HV Pin Voltage to GND VHV 600 V Power Supply Pin VCC 40 V DMG voltage to GND VDMG -0.3 to 40 V OUT voltage to GND VOUT -0.3 to 40 V RT voltage to GND VCS -0.3 to 5.5 V CS voltage to GND VCS -0.3 to 5.5 V VCOM -0.3 to 5.5 V Junction Temperature Range TJ -40 to +150 °C Storage Temperature Range TSTG -65 to +150 °C Lead Temperature (Soldering 10 sec) TLEAD 260 °C PD 0.4 W HBM 2 kV MM 200 V SYMBOL LIMIT UNIT RθJA 160 °C/W COM voltage to GND Power Dissipation @ TA=50 °C ESD Rating (Human Body Mode) ESD Rating (Machine Mode) (Note 2) (Note 2) THERMAL PERFORMANCE (Note 3) PARAMETER Thermal Resistance Junction to Ambient RECOMMENDED OPERATING CONDITION (TA = 25°C unless otherwise specified) (Note 4) PARAMETER SYMBOL LIMIT UNIT HV Pin Voltage to GND VHV -0.3 to 450 V Power Supply Pin VCC 33 V DMG voltage to GND VDMG -0.3 to 10 V OUT voltage to GND VOUT -0.3 to 13 V RT voltage to GND VCS -0.3 to 5 V CS voltage to GND VCS -0.3 to 5 V VCOM -0.3 to 5 V Operating Junction Temperature Range TJ -40 to +150 °C Operating Ambient Temperature Range TOPA -40 to +85 °C COM voltage to GND 2 Version: A1602 TS19320CS Taiwan Semiconductor ELECTRICAL SPECIFICATIONS (TA = 25°C unless otherwise specified) PARAMETER SYMBOL CONDITION MIN TYP MAX UNIT -- 2.4 -- mA Supply Voltage Supply current from HV pin IHV VDC=120V 10µF@VCC Pin Turn-on Voltage VCC_ON 14.3 15.3 16.3 V Turn-off Voltage VCC_OFF 7.3 7.8 8.3 V Quiescent Current 1 IQ1 VCC=12V, @ VCC off -- 68 100 µA Quiescent Current 2 IQ2 Start-up @ 4.5kHz -- 570 770 µA Operation Supply Current ICC -- 1.5 2.5 mA VCC voltage protection VOVPA 32 33.5 35 V Output voltage protection VOVPS 9.5 10 10.5 V CS limit voltage VOCP 1.2 1.3 1.4 V VOCP_STR -- 0.4 -- V VSCP -- 3.0 -- V tON_MAX 14 15 16 µs VREF 362.6 370 377.4 mV Gm -- 95 -- µA/V Sink Current ICOMP_SINK -- 32 -- µA Source Current ICOMP_SOU -- 32 -- µA Protection CS limit voltage (start-up) Short circuit protection (Note 5) Oscillator Maximum on Time GM Amplifier Internal reference voltage Transconductance Driver Dropout voltage VOH IO = 10mA -- 0.68 -- V VOL IO = -10mA -- 0.18 -- V Rise time tr VCC=20V, CO =1nF -- 60 -- ns Fall time tf VCC=20V, CO =1nF -- 80 -- ns VO CLAMP -- 13 15 V LEBt -- 0.5 -- ns -- 120 -- °C Output clamp voltage Leading edge blanking time Thermal Section (Note 5) (Note 5, 6) Thermal Shutdown Note: 1. Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. Functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. 2. Devices are ESD sensitive. Handling precautions are recommended. 3. Thermal resistance is specified with the component mounted on a test board in free air with low effective thermal conductivity at TA=25°C. 4. The device is not guaranteed to function outside its operating conditions. 5. Guaranteed by design. 6. Linear degeneration type. 3 Version: A1602 TS19320CS Taiwan Semiconductor ORDERING INFORMATION PART NO. PACKAGE PACKING TS19320CS RLG SOP-8 2,500pcs / 13”Reel FUNCTION BLOCK HV COM VCCOK S GM Amplifier VCC BIAS Vref OSC set_osc R Gate Driver Q CT RT Protection (OCP, OVP, SCP, OTP) GND Sample & Hold CSP Multiply TDIS DMG OUT RT Angle Detection Sample & Hold LEB set_dmg Line Compensation DMG CS PIN DESCRIPTION PIN NO. NAME FUNCTION 1 HV Pull high to line voltage for startup 2 3 RT CS Maximum on time setting Input current sense pin. 4 COM Output pin of error amplifier. 5 DMG Zero current demagnetization sensing. 6 VCC Power supply pin for all internal circuitry. 7 OUT Power MOS output pin. 8 GND Ground return for all internal circuitry. 4 Version: A1602 TS19320CS Taiwan Semiconductor 17.00 9.00 16.50 8.50 16.00 8.00 Voltage (V) Voltage (V) CHARACTERISTICS CURVES 15.50 15.00 14.50 14.00 6.50 0 20 40 60 80 100 120 Temperature (℃) -40 -20 0 20 40 60 80 100 120 Temperature (℃) Figure 2 - VCC_OFF vs. Junction Temperature Figure 1 - VCC_ON vs. Junction Temperature 35.00 10.50 34.50 10.30 34.00 Voltage (V) Voltage (V) 7.00 6.00 -40 -20 33.50 33.00 10.10 9.90 9.70 32.50 9.50 32.00 -40 -20 -40 -20 0 20 40 60 80 100 120 Temperature (℃) 0 20 40 60 80 100 120 Temperature (℃) Figure 3 - VOVPA vs. Junction Temperature Figure 4 - VOVPS vs. Junction Temperature 17.00 1.35 16.50 1.33 16.00 Voltage (V) On Time (µs) 7.50 15.50 15.00 1.31 1.29 1.27 14.50 14.00 1.25 -40 -20 0 20 40 60 80 100 120 -40 -20 Temperature (℃) Figure 5 - TON_MAX vs. Junction Temperature 0 20 40 60 80 100 120 Temperature (℃) Figure 6 - VOCP vs. Junction Temperature 5 Version: A1602 TS19320CS Taiwan Semiconductor APPLICATION INFORMATION PSR Function Description As a constant current primary-side controller with phase-cut dimmable and PFC function for LED lighting applications, the controller operates in boundary conduction mode (BCM) with constant on-time based regulation designed to achieve high power factor performance. The TS19320 has built-in high voltage (500V) startup circuit, VCC over voltage protection, open LED protection, short LED protection, over temperature protection, primary-side current limit, and gate clamp function. The average output current can be expressed as below. IOUT_avg = NP 0.370 * η × NS 2 × RS Where: • IOUT_avg is the average output current • NP is the primary-side turn ratio • NS is the secondary-side turn ratio • ƞ is the efficiency • RS is the sensing resistor connected between the MOSFET source and the GND Pin Definitions HV Pin Connect this pin to positive terminal of bulk capacitor to provide the startup current for the controller during VCC_ON trigger on before. RT Pin This pin is to program the maximum on time by connecting a resistor to ground. Reference formula as below. TON = 14 µ × (RT − 100k ) + 1µ 300k CS Pin MOSFET current signal sensing for multiplication and current limit setting function. ICS(LIMIT) = 1.3 RS Where: • ICS(LIMIT) is the input current sence • RS is the sensing resistor connected between the MOSFET source and GND COM Pin This is the output of the gm amplifier. Connect with a suitable RC network to ground. VCC Pin Power supply for the controller during normal operation. The controller will start up when VCC reaches 15.3V (typical) and will shut-down when VCC voltage is below 7.8V (typical). A decoupling capacitor should be connected between the VCC and GND pin as close as possible. The TS19320 performs VCC over voltage protection though VCC pin. Once VCC pin exceeds in 33.5V, TS19320 turns off and latchs out the MOSFET switcher until VCC goes below VCC_OFF. 6 Version: A1602 TS19320CS Taiwan Semiconductor APPLICATION INFORMATION Pin Definitions (Continue) DMG The Output voltage is reflected by the auxiliary winding (NAUX) voltage of fly-back transformer, the DMG pin can sense output information to depart from start up voltage (VO_STR) and protect voltage (VO_OVP). When the DMG sense voltage under VO_STR, the circuit will work on short circuit protection, fSTR=1/tSTR. When the DMG sense voltage over VO_OVP, the circuit will work on over voltage protection, it will latch out until VCC goes below VCC_OFF. VO_OVP = NSEC RD1 + RD2 × VOVPS × NAUX RD2 VO_STR = NSEC RD1 + RD2 ×3× NAUX RD2 Where : • VOUT_OVP is the output-over-voltage protection point • VOVPS is the over voltage protection signal VO_STR is the start-up timer • • NAUX is the number of auxiliary-winding turns • NSEC is the number of secondary-winding turns OUT Pin Gate drive for external MOSFET switch and is built-in gate clamp function. GND Pin GND is the reference node of internal circuit. 7 Version: A1602 TS19320CS Taiwan Semiconductor PACKAGE OUTLINE DIMENSIONS (Unit: Millimeters) SOP-8 SUGGESTED PAD LAYOUT (Unit: Millimeters) MARKING DIAGRAM Y = Year Code M = Month Code for Halogen Free Product O =Jan P =Feb Q =Mar R =Apr S =May T =Jun U =Jul V =Aug W =Sep X =Oct Y =Nov Z =Dec L = Lot Code (1~9, A~Z) 8 Version: A1602 TS19320CS Taiwan Semiconductor Notice Specifications of the products displayed herein are subject to change without notice. TSC or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, to any intellectual property rights is granted by this document. Except as provided in TSC’s terms and conditions of sale for such products, TSC assumes no liability whatsoever, and disclaims any express or implied warranty, relating to sale and/or use of TSC products including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify TSC for any damages resulting from such improper use or sale. 9 Version: A1602