tophx_family_datasheet

TOP252-262 TOPSwitch-HX Family www.powerint.com January 2009 Enhanced EcoSmart®, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range ® Product Highlights Lower System Cost, Higher Design Flexibility Multi-mode operation maximizes effi ciency at all loads New eSIP-7F and eSIP-7C packages Low thermal impedance junction-to-case (2 °C per watt) Low height is ideal for adapters where space is limited Simple mounting using a clip to aid low cost manufacturing Horizontal eSIP-7F package ideal for ultra low height adapter and monitor applications Extended package creepage distance from DRAIN pin to adjacent pin and to heat sink No heatsink required up to 35 W using P, G and M packages with universal input voltage and up to 48 W at 230 VAC Output overvoltage protection (OVP) is user programmable for latching/non-latching shutdown with fast AC reset Allows both primary and secondary sensing Line undervoltage (UV) detection prevents turn-off glitches Line overvoltage (OV) shutdown extends line surge limit Accurate programmable current limit Optimized line feed-forward for line ripple rejection 132 kHz frequency (254Y-258Y and all E/L packages) reduces transformer and power supply size Half frequency option for video applications Frequency jittering reduces EMI fi lter cost • • • • • • • • • • • • • • • • • Figure 1. Typical Flyback Application. Heatsink is connected to SOURCE for low EMI Improved auto-restart delivers <3% of maximum power in short circuit and open loop fault conditions Accurate hysteretic thermal shutdown function automatically recovers without requiring a reset Fully integrated soft-start for minimum start-up stress Extended creepage between DRAIN and all other pins improves fi eld reliability • • • • • PI-4510-100206 AC IN DC OUT D S C TOPSwitch-HX CONTROL V + - F X Output Power Table Product5 230 VAC ±15%4 85-265 VAC Adapter1 Open Frame2 Peak 3 Adapter1 Open Frame2 Peak 3 TOP252PN/GN 9 W 15 W 21 W 6 W 10 W 13 W TOP252MN 21 W 13 W TOP253PN/GN 15 W 25 W 38 W 9 W 15 W 25 W TOP253MN 43 W 29 W TOP254PN/GN 16 W 28 W 47 W 11 W 20 W 30 W TOP254MN 62 W 40 W TOP255PN/GN 19 W 30 W 54 W 13 W 22 W 35 W TOP255MN 81 W 52 W TOP256PN/GN 21 W 34 W 63 W 15 W 26 W 40 W TOP256MN 98 W 64 W TOP257PN/GN 25 W 41 W 70 W 19 W 30 W 45 W TOP257MN 119 W 78 W TOP258PN/GN 29 W 48 W 77 W 22 W 35 W 50 W TOP258MN 140 W 92 W Table 1. Output Power Table. (for notes see page 2). Product5 230 VAC ±15% 85-265 VAC Adapter1 Open Frame2 Adapter 1 Open Frame2 TOP252EN 10 W 21 W 6 W 13 W TOP253EN 21 W 43 W 13 W 29 W TOP254EN/YN 30 W 62 W 20 W 43 W TOP255EN/YN 40 W 81 W 26 W 57 W TOP255LN 40 W 81 W 26 W 57 W TOP256EN/YN7 60 W 119 W 40 W 86 W TOP256LN 60 W 88 W 40 W 64 W TOP257EN/YN 85 W 157 W 55 W 119 W TOP257LN 85 W 105 W 55 W 78 W TOP258EN/YN 105 W 195 W 70 W 148 W TOP258LN 105 W 122 W 70 W 92 W TOP259EN/YN 128 W 238 W 80 W 171 W TOP259LN 128 W 162 W 80 W 120 W TOP260EN/YN 147 W 275 W 93 W 200 W TOP260LN 147 W 190 W 93 W 140 W TOP261EN/YN 177 W 333 W 118 W 254 W TOP261LN 177 W 244 W 118 W 177 W TOP262EN6 177 W 333 W 118 W 254 W TOP262LN6 177 W 244 W 118 W 177 W Rev. F 01/09 2 TOP252-262 www.powerint.com EcoSmart®– Energy Effi cient Energy effi cient over entire load range No-load consumption Less than 200 mW at 230 VAC Standby power for 1 W input >600 mW output at 110 VAC input >500 mW output at 265 VAC input Description TOPSwitch-HX cost effectively incorporates a 700 V power MOSFET, high voltage switched current source, PWM control, oscillator, thermal shutdown circuit, fault protection and other control circuitry onto a monolithic device. • • • • • • PI-4973-122607 AC IN DC OUT D S CTOPSwitch-HX CONTROL V + - GX Figure 2. Typical Flyback Application TOP259YN, TOP260YN and TOP261YN. Y Package Option for TOP259-261 In order to improve noise-immunity on large TOPSwitch-HX Y package parts, the F pin has been removed (TOP259-261YN are fi xed at 66 kHz switching frequency) and replaced with a SIGNAL GROUND (G) pin. This pin acts as a low noise path for the C pin capacitor and the X pin resistor. It is only required for the TOP259-261YN package parts. Notes for Table 1: 1. Minimum continuous power in a typical non-ventilated enclosed adapter measured at +50 °C ambient. Use of an external heat sink will increase power capability. 2. Minimum continuous power in an open frame design at +50 °C ambient. 3. Peak power capability in any design at +50 °C ambient. 4. 230 VAC or 110/115 VAC with doubler. 5. Packages: P: DIP-8C, G: SMD-8C, M: SDIP-10C, Y: TO-220-7C, E: eSIP-7C, L: eSIP-7F. See part ordering information. 6. TOP261 and TOP262 have the same current limit set point. In some applications TOP262 may run cooler than TOP261 due to a lower RDS(ON) for the larger device. 7. TOP256E package parts are available with Green (Halogen Free) mold compound. See Part Ordering Information on page 47. Parametrically green material encapsulated E package parts are identical to non-green parts. Rev. F 01/09 3 TOP252-262 www.powerint.com Section List Functional Block Diagram ....................................................................................................................................... 4 Pin Functional Description ...................................................................................................................................... 6 TOPSwitch-HX Family Functional Description ....................................................................................................... 7 CONTROL (C) Pin Operation .................................................................................................................................... 8 Oscillator and Switching Frequency .......................................................................................................................... 8 Pulse Width Modulator ............................................................................................................................................ 9 Maximum Load Cycle .............................................................................................................................................. 9 Error Amplifi er .......................................................................................................................................................... 9 On-Chip Current Limit with External Programmability ............................................................................................... 9 Line Under-Voltage Detection (UV) .......................................................................................................................... 10 Line Overvoltage Shutdown (OV) ............................................................................................................................ 11 Hysteretic or Latching Output Overvoltage Protection (OVP)................................................................................... 11 Line Feed-Forward with DCMAX Reduction .............................................................................................................. 13 Remote ON/OFF and Synchronization .................................................................................................................... 13 Soft-Start ............................................................................................................................................................... 13 Shutdown/Auto-Restart ......................................................................................................................................... 13 Hysteretic Over-Temperature Protection ................................................................................................................. 13 Bandgap Reference ............................................................................................................................................... 13 High-Voltage Bias Current Source .......................................................................................................................... 13 Typical Uses of FREQUENCY (F) Pin ...................................................................................................................... 15 Typical Uses of VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) Pins .......................................... 16 Typical Uses of MULTI-FUNCTION (M) Pin ........................................................................................................... 18 Application Examples .............................................................................................................................................. 21 A High Effi ciency, 35 W, Dual Output – Universal Input Power Supply ..................................................................... 21 A High Effi ciency, 150 W, 250-380 VDC Input Power Supply .................................................................................. 22 A High Effi ciency, 20 W Continuous – 80 W Peak, Universal Input Power Supply ................................................... 23 A High Effi ciency, 65 W, Universal Input Power Supply ........................................................................................... 24 Key Application Considerations .............................................................................................................................. 25 TOPSwitch-HX vs.TOPSwitch-GX ....................................................................................................................... . 25 TOPSwitch-HX Design Considerations .................................................................................................................. 26 TOPSwitch-HX Layout Considerations ................................................................................................................... 27 Quick Design Checklist .......................................................................................................................................... 31 Design Tools .......................................................................................................................................................... 31 Product Specifi cations and Test Conditions .......................................................................................................... 32 Typical Performance Characteristics .................................................................................................................... 39 Package Outlines .................................................................................................................................................... 43 Part Ordering Information ........................................................................................................................................ 47 Rev. F 01/09 4 TOP252-262 www.powerint.com Figure 3a. Functional Block Diagram (P and G Packages). Figure 3b. Functional Block Diagram (M Package). PI-4643-082907 SHUTDOWN/ AUTO-RESTART CLOCK CONTROLLED TURN-ON GATE DRIVER CURRENT LIMIT COMPARATOR INTERNAL UV COMPARATOR INTERNAL SUPPLY 5.8 V 4.8 V SOURCE (S) SOURCE (S) S R Q DMAX STOP SOFT START CONTROL (C) VOLTAGE MONITOR (V) - + 5.8 V IFB 1 V ZC VC + - + - + - LEADING EDGE BLANKING ÷ 16 1 HYSTERETIC THERMAL SHUTDOWN SHUNT REGULATOR/ ERROR AMPLIFIER + - DRAIN (D) ON/OFF DCMAX DCMAX 0 OV/ UV OVP V VI (LIMIT) CURRENT LIMIT ADJUST VBG + VT LINE SENSE SOFT START OFF F REDUCTION F REDUCTION STOP LOGIC EXTERNAL CURRENT LIMIT (X) OSCILLATOR WITH JITTER PWM KPS(UPPER) KPS(LOWER) SOFT START IFB IPS(UPPER) IPS(LOWER) KPS(UPPER) KPS(LOWER) PI-4508-120307 SHUTDOWN/ AUTO-RESTART CLOCK CONTROLLED TURN-ON GATE DRIVER CURRENT LIMIT COMPARATOR INTERNAL UV COMPARATOR INTERNAL SUPPLY 5.8 V 4.8 V KPS(UPPER) KPS(LOWER) SOURCE (S) SOURCE (S) S R Q DMAX STOP SOFT START CONTROL (C) MULTI- FUNCTION (M) - + 5.8 V IFB ZC VC + - + - + - LEADING EDGE BLANKING ÷ 16 1 HYSTERETIC THERMAL SHUTDOWN SHUNT REGULATOR/ ERROR AMPLIFIER + - DRAIN (D) ON/OFF DCMAX DCMAX 0 OV/ UV OVP V VI (LIMIT) CURRENT LIMIT ADJUST VBG + VT LINE SENSE SOFT START SOFT START IFB IPS(UPPER) IPS(LOWER) KPS(UPPER) KPS(LOWER) OFF F REDUCTION F REDUCTION STOP LOGIC OSCILLATOR WITH JITTER PWM Rev. F 01/09 5 TOP252-262 www.powerint.com Figure 3c. Functional Block Diagram (TOP254-258 YN Package and all eSIP Packages). PI-4511-082907 SHUTDOWN/ AUTO-RESTART CLOCK CONTROLLED TURN-ON GATE DRIVER CURRENT LIMIT COMPARATOR INTERNAL UV COMPARATOR INTERNAL SUPPLY 5.8 V 4.8 V SOURCE (S) SOURCE (S) S R Q DMAX STOP SOFT START CONTROL (C) VOLTAGE MONITOR (V) FREQUENCY (F) - + 5.8 V IFB 1 V ZC VC + - + - + - LEADING EDGE BLANKING ÷ 16 1 HYSTERETIC THERMAL SHUTDOWN SHUNT REGULATOR/ ERROR AMPLIFIER + - DRAIN (D) ON/OFF DCMAX DCMAX 66k/132k 0 OV/ UV OVP V VI (LIMIT) CURRENT LIMIT ADJUST VBG + VT LINE SENSE SOFT START OFF F REDUCTION F REDUCTION STOP LOGIC EXTERNAL CURRENT LIMIT (X) OSCILLATOR WITH JITTER PWM KPS(UPPER) KPS(LOWER) SOFT START IFB IPS(UPPER) IPS(LOWER) KPS(UPPER) KPS(LOWER) PI-4974-122607 SHUTDOWN/ AUTO-RESTART CLOCK CONTROLLED TURN-ON GATE DRIVER CURRENT LIMIT COMPARATOR INTERNAL UV COMPARATOR INTERNAL SUPPLY 5.8 V 4.8 V SIGNAL GROUND (G) SOURCE (S) S R Q DMAX STOP SOFT START CONTROL (C) VOLTAGE MONITOR (V) - + 5.8 V IFB 1 V ZC VC + - + - + - LEADING EDGE BLANKING ÷ 16 1 HYSTERETIC THERMAL SHUTDOWN SHUNT REGULATOR/ ERROR AMPLIFIER + - DRAIN (D) SOURCE (S) ON/OFF DCMAX DCMAX 0 OV/ UV OVP V VI (LIMIT) CURRENT LIMIT ADJUST VBG + VT LINE SENSE SOFT START OFF F REDUCTION F REDUCTION STOP LOGIC EXTERNAL CURRENT LIMIT (X) OSCILLATOR WITH JITTER PWM KPS(UPPER) KPS(LOWER) SOFT START IFB IPS(UPPER) IPS(LOWER) KPS(UPPER) KPS(LOWER) Figure 3d. Functional Block Diagram TOP259YN, TOP260YN, TOP261YN. Rev. F 01/09 6 TOP252-262 www.powerint.com Pin Functional Description DRAIN (D) Pin: High-voltage power MOSFET DRAIN pin. The internal start-up bias current is drawn from this pin through a switched high- voltage current source. Internal current limit sense point for drain current. CONTROL (C) Pin: Error amplifi er and feedback current input pin for duty cycle control. Internal shunt regulator connection to provide internal bias current during normal operation. It is also used as the connection point for the supply bypass and auto-restart/ compensation capacitor. EXTERNAL CURRENT LIMIT (X) Pin (Y, M, E and L package): Input pin for external current limit adjustment and remote ON/OFF. A connection to SOURCE pin disables all functions on this pin. Figure 4. Pin Confi guration (Top View). X PI -4 71 1- 02 13 08 DC Input Voltage + - D S C CONTROL V RIL RLS 12 k7 4 M7 VUV = IUV × RLS + VV (IV = IUV) VOV = IOV × RLS + VV (IV = IOV) For RLS = 4 M7 DCMAX@100 VDC = 76% DCMAX@375 VDC = 41% For RIL = 12 k7 ILIMIT = 61% See Figure 55b for other resistor values (RIL) to select different ILIMIT values. VUV = 102.8 VDC VOV = 451 VDC Figure 5. TOP254-258 Y and All M/E/L Package Line Sense and Externally Set Current Limit. PI-4712-120307 DC Input Voltage + - D M S C VUV = IUV × RLS + VM (IM = IUV) VOV = IOV × RLS + VM (IM = IOV) For RLS = 4 M7 VUV = 102.8 VDC VOV = 451 VDC DCMAX@100 VDC = 76% DCMAX@375 VDC = 41% CONTROL RLS 4 M7 Figure 7. P/G Package Line Sense. X G PI -4 98 3- 02 13 08 DC Input Voltage + - D S C CONTROL V RIL RLS 12 k7 4 M7 VUV = IUV × RLS + VV (IV = IUV) VOV = IOV × RLS + VV (IV = IOV) For RLS = 4 M7 DCMAX@100 VDC = 76% DCMAX@375 VDC = 41% For RIL = 12 k7 ILIMIT = 61% See Figure 55b for other resistor values (RIL) to select different ILIMIT values. VUV = 102.8 VDC VOV = 451 VDC Figure 6. TOP259-261 Y Package Line Sense and External Current Limit. VOLTAGE MONITOR (V) Pin (Y & M package only): Input for OV, UV, line feed forward with DCMAX reduction, output overvoltage protection (OVP), remote ON/OFF and device reset. A connection to the SOURCE pin disables all functions on this pin. MULTI-FUNCTION (M) Pin (P & G packages only): This pin combines the functions of the VOLTAGE MONITOR (V) and EXTERNAL CURRENT LIMIT (X) pins of the Y package into one pin. Input pin for OV, UV, line feed forward with DCMAX PI-4644-091108 Tab Internally Connected to SOURCE Pin Tab Internally Connected to SOURCE Pin Lead Bend Outward from Drawing (Refer to eSIP-7F Package Outline Drawing) Exposed Pad (Hidden) Internally Connected to SOURCE Pin Y Package (TO-220-7C) D C S S S S S S S S S 7 D 5 F 4 S 3 C 2 X 1 V 7 D 5 S 4 F 3 C 2 X 1 V 7 D 5 S 4 F 3 C 2 X 1 V 7 D 5 G 4 S 3 C 2 X 1 V M P and G Package M Package 8 5 7 1 4 2 6 D X C V 10 6 9 1 5 8 7 2 3 Note: Y package for TOP259-261 Note: Y package for TOP254-258 E Package (eSIP-7C) L Package (eSIP-7F) Y Package (TO-220-7C) Rev. F 01/09 7 TOP252-262 www.powerint.com PI-4713-021308 DC Input Voltage + - D M S C For RIL = 12 k7 ILIMIT = 61% CONTROL RIL See Figure 55b for other resistor values (RIL) to select different ILIMIT values. For RIL = 19 k7 ILIMIT = 37% Figure 8. P/G Package Externally Set Current Limit. reduction, output overvoltage protection (OVP), external current limit adjustment, remote ON/OFF and device reset. A connection to SOURCE pin disables all functions on this pin and makes TOPSwitch-HX operate in simple three terminal mode (like TOPSwitch-II). FREQUENCY (F) Pin (TOP254-258Y, and all E and L packages): Input pin for selecting switching frequency 132 kHz if connected to SOURCE pin and 66 kHz if connected to CONTROL pin. The switching frequency is internally set for fi xed 66 kHz operation in the P, G, M package and TOP259YN, TOP260YN and TOP261YN. SIGNAL GROUND (G) Pin (TOP259YN, TOP260YN & TOP261YN only): Return for C pin capacitor and X pin resistor. SOURCE (S) Pin: Output MOSFET source connection for high voltage power return. Primary side control circuit common and reference point. TOPSwitch-HX Family Functional Description Like TOPSwitch-GX, TOPSwitch-HX is an integrated switched mode power supply chip that converts a current at the control input to a duty cycle at the open drain output of a high voltage power MOSFET. During normal operation the duty cycle of the power MOSFET decreases linearly with increasing CONTROL pin current as shown in Figure 9. In addition to the three terminal TOPSwitch features, such as the high voltage start-up, the cycle-by-cycle current limiting, loop compensation circuitry, auto-restart and thermal shutdown, the TOPSwitch-HX incorporates many additional functions that reduce system cost, increase power supply performance and design fl exibility. A patented high voltage CMOS technology allows both the high-voltage power MOSFET and all the low voltage control circuitry to be cost effectively integrated onto a single monolithic chip. Three terminals, FREQUENCY, VOLTAGE-MONITOR, and EXTERNAL CURRENT LIMIT (available in Y and E/L packages), two terminals, VOLTAGE-MONITOR and EXTERNAL CURRENT LIMIT (avai