SSL3401HN/1Y

SSL3401HN Low voltage dimmable controller for LED lighting Rev. 2 — 28 January 2014 Product data sheet 1. General description The SSL3401HN is a Switched Mode Power Supply (SMPS) controller IC. It operates in combination with a phase cut dimmer and a 12 V (AC or DC) low voltage electronic or magnetic transformer. It is designed to drive LED devices and include a dimmer conduction phase detector. The chip includes a hysteretic controller for the power converter. It is most suitable for use with a linear LED current source. Two embedded Proportional-Integral (PI) controllers and a 0.052 % resolution PWM generator, adjusted by the dimmer conduction phase, ensure excellent LED current stability for a dimming range from 100 % to less than 5 %. It also minimizes the power loss across the LED current source. Several protection mechanisms are available: • • • • • • OverVoltage Protection (OVP) Coil Current Limitation (CCL) Short LED protection (SLED) Open LED protection (OLED) UnderVoltage LockOut (UVLO) Advanced adaptive OverTemperature Protection (OTP) 2. Features and benefits              Easy migration to existing lighting control infrastructure Support most available dimming and low-voltage transformation solutions Excellent stability of LED current Double PI controllers to enhance the line regulation of the LED current Optimized dimming curve for low-voltage transformer compatibility Automatic supply frequency detection for seamless operation with 50 Hz, 60 Hz or DC sources Dimmer conduction angle detection Coil current limitation Temperature roll-back protection OverVoltage Protection Power-On-Reset (POR) Shorted LED protection Open LED detection SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting 3. Applications  General LED lighting with various power requirements  Dimmable 12 V MR16 and AR111 applications 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions VDD(3V3) supply voltage (3.3 V) IDD supply current Vfbck(min) minimum feedback voltage fsw(PWM) PWM switching frequency Vhys hysteresis voltage Min Typ Max Unit 2.6 3.3 3.6 V - 10 - mA - 0.625 - V - 12.5 - kHz Pin HYSTSET set HIGH or not connected - 20 - mV Pin HYSTSET set LOW - 10 - mV Pin HYSTSET set HIGH or not connected - 20 - mV Pin HYSTSET set LOW - 10 - mV minimum voltage over 1 AC supply cycle in steady state closed loop configuration; full output power comparator; positive hysteresis; VACMPx = 1.5 V comparator; negative hysteresis; VACMPx = 1.5 V IO(sc)H HIGH-level short-circuit output current pin BSTDRVx; VOH = 0 V - - 45 mA IO(sc)L LOW-level short-circuit output current pin BSTDRVx; VOH = 3.3 V - - 50 mA Vth(scp)LED LED short-circuit protection threshold voltage pin FB - 2.4 3.9 V Vth(ovp) overvoltage protection threshold voltage pin OVP - 1.90 - V Vovp(hys) overvoltage protection voltage hysteresis pin OVP - 0.55 - V Tamb ambient temperature operating 0 - 105 C Tth(otp) overtemperature protection threshold temperature die junction temperature - 125 - C SSL3401HN Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 © NXP B.V. 2014. All rights reserved. 2 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting 5. Ordering information Table 2. Ordering information Type number SSL3401HN/1 SSL3401HN Product data sheet Package Name Description Version HVQFN33 plastic thermal enhanced very thin quad flat package; no leads; 32 terminals; body 5  5  0.85 mm HVQFN33 All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 © NXP B.V. 2014. All rights reserved. 3 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting 6. Block diagram $&033 + the rated maximum. b) Parameters are valid over operating temperature range unless otherwise specified. All voltages are with respect to VSS unless otherwise noted. [2] Maximum/minimum voltage above the maximum operating voltage (see Table 7) and below ground that can be applied for a short time (< 10 ms) to a device without leading to irrecoverable failure. Failure includes the loss of reliability and shorter lifetime of the device. [3] An ADC input voltage exceeding 3.6 V can be applied for a short time without leading to immediate, unrecoverable failure. Accumulated exposure to elevated voltages at 4.6 V must be less than 106 s total over the lifetime of the device. Applying an elevated voltage to the ADC inputs for a long time affects the reliability of the device and reduces its lifetime. [4] If the comparator is configured with the common-mode input VIC = VDD, the other comparator input can be up to 0.2 V above or below VDD without affecting the hysteresis range of the comparator function. [5] Connect an overvoltage protection diode between the analog input pin and the voltage supply pin. [6] Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 k series resistor. [7] Charge device model: Equivalent to charging the IC up to 1 kV and the subsequent discharging of each pin down to 0 V over a 1  resistor. [8] Not characterized. [9] In accordance with NX4-00100. 10. Static characteristics Table 7. Static characteristics Tamb = 25 C, unless otherwise specified. Min Typ[1] Max Unit supply voltage (3.3 V) 2.6 3.3 3.6 V VDD(IO) input/output supply voltage 2.6 3.3 3.6 V IDD supply current Symbol Parameter VDD(3V3) Conditions VDD(3V3) = VDD(IO) = 3.3 V 10 mA Pin RESET IIL LOW-level input current VI = 0 V; 2.6 V  VDD(IO)  3.6 V 15 50 85 A VDD(IO) < VI < 5 V 0 0 0 A - 0.5 1000 nA 0 - 5.0 V IIH HIGH-level input current VI = VDD(IO); VI input voltage pin configured to provide a digital function; 5 V tolerant pins VIH HIGH-level input voltage 0.7VDD(IO) - - V VIL LOW-level input voltage - - 0.3VDD(IO) V SSL3401HN Product data sheet [2] All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 © NXP B.V. 2014. All rights reserved. 16 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting Table 7. Static characteristics …continued Tamb = 25 C, unless otherwise specified. Symbol Parameter Conditions Min Typ[1] Max Unit Vhys hysteresis voltage 3.0 V  VDD(IO)  3.6 V 0.4 - - V 0 - 5.0 V 0 - VDD(IO) V V Pins LOADPWM, GAINSETACT, OTPSETACT, LEDPWM, LEDSDWN pin configured to provide a digital function; 5 V tolerant pins [2] VI input voltage VO output voltage VOH HIGH-level output voltage 2.6 V  VDD(IO)  3.6 V; IOH = 4 mA 0.85VDD(IO) - - VOL LOW-level output voltage 2.6 V  VDD(IO)  3.6 V; IOL = 4 mA - - 0.15VDD(IO) V IOH HIGH-level output current VOH = VDD(IO)  0.4 V; 2.6 V  VDD(IO)  3.6 V 4 - - mA IOL LOW-level output current VOL = 0.4 V; 2.6 V  VDD(IO)  3.6 V 4 - - mA IO(sc)H HIGH-level short-circuit VOH = 0 V output current [3] - - 45 mA IO(sc)L LOW-level short-circuit output current [3] - - 50 mA VOL = VDD(IO) Pins BSTDRVA, BSTDRVB IIL LOW-level input current VI = 0 V; 15 50 85 A IIH HIGH-level input current - 0.5 1000 nA 0 - VI = VDD(IO); 2.6 V  VDD(IO)  3.6 V VO output voltage VDD(IO) V VOH HIGH-level output voltage 2.6 V  VDD(IO) 3.6 V; IOH = 4 mA 0.85VDD(IO) - - V VOL LOW-level output voltage 2.6 V  VDD(IO) 3.6 V; IOL = 4 mA - - 0.15VDD(IO) V IOH HIGH-level output current VOH = VDD(IO)  0.4 V; 2.6 V  VDD(IO)  3.6 V 4 - - mA IOL LOW-level output current VOL = 0.4 V; 2.6 V  VDD(IO)  3.6 V 4 - - mA IO(sc)H HIGH-level short-circuit VOH = 0 V output current [3] - - 45 mA IO(sc)L LOW-level short-circuit output current [3] - - 50 mA VOL = VDD(IO) [1] Typical ratings are not guaranteed. The values listed are at room temperature (25 C), nominal supply voltages. [2] All supply voltages must be present. [3] Allowed as long as the current limit does not exceed the maximum current allowed by the device. SSL3401HN Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 © NXP B.V. 2014. All rights reserved. 17 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting 10.1 Electrical pin characteristics 002aae991 15 IOL (mA) T = 85 °C 25 °C −40 °C 10 5 0 0 0.2 0.4 0.6 VOL (V) Conditions: VDD(IO) = 3.3 V Fig 7. Typical LOW-level output current IOL versus LOW-level output voltage VOL 002aae992 3.6 VOH (V) T = 85 °C 25 °C −40 °C 3.2 2.8 2.4 2 0 8 16 24 IOH (mA) Conditions: VDD(IO) = 3.3 V; standard port pins. Fig 8. SSL3401HN Product data sheet Typical HIGH-level output voltage VOH versus HIGH-level output source current IOH All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 © NXP B.V. 2014. All rights reserved. 18 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting 11. Dynamic characteristics 11.1 Power supply fluctuations If the input voltage (VDD(3V3)) to the internal regulator fluctuates, the SSL3401HN is held in reset during a brownout condition as long as the UVLO circuit is operating. The settling times of the BOD and POR circuits, which constitute the UVLO, determine the minimum time the supply level must remain in the shallow or deep brownout condition to ensure that the internal reset is asserted properly. Table 8. UVLO circuits settling characteristics Symbol Parameter settling time ts supply voltage VDD(3V3) cold start-up Conditions Min Typ Max Unit from active level to shallow brownout level; (0.9 V  VDD(3V3)  2.4 V) 5 - - s from active level to deep brownout level (0 < VDD(3V3) < 0.9 V) 12 - - s power drop: brown-out shallow brown-out deep External power supply BOD trip point (typical) 2.4 V > 5 μs POR trip point (typical) 0.9 V 0V > 12 μs internal reset time 002aah326 Fig 9. UVLO timing 11.2 I/O pins Table 9. Dynamic characteristic: digital I/O pins[1] Tamb = 25C; 3.0 V  VDD(IO)  3.6 V; load capacitor = 30 pF. Symbol Parameter tr tf [1] SSL3401HN Product data sheet Conditions Min Typ Max Unit rise time 2.5 - 5.0 ns fall time 2.0 - 4.5 ns Simulated results. All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 © NXP B.V. 2014. All rights reserved. 19 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting 12. Analog characteristics Table 10. BOD static characteristics Tamb = 25 C. Symbol Parameter Conditions Vth threshold voltage Min Typ Max Unit assertion - 2.52 - V deassertion - 2.66 - V Table 11. ADC static characteristics Tamb = 35 C unless otherwise specified; VDD(3V3) = 2.7 V to 3.6 V; VSS = 0 V. Symbol Parameter VI Ci Ri Conditions Min Typ Max Unit input voltage 0 - VDD(3V3) V input capacitance - - 4 pF input resistance - 415 - k Table 12. DAC static and dynamic characteristics VDD(3V3) = 2.7 V to 3.6 V; Tamb = 25 C unless otherwise specified Symbol Parameter CL Conditions Min Typ Max Unit load capacitance - - 200 pF RL load resistance 1 - - k RO output resistance - < 40 ts settling time - - 1 s VO output voltage output voltage range with less than 1 LSB deviation; with minimum RL connected to ground or power supply 0.3 - VDD(3V3)  0.3 V with minimum RL connected to ground or power supply 0.175 - VDD(3V3)  0.175 V  Table 13. Comparator characteristics VDD(3V3)= 3.0 V and Tamb = 25 C unless noted otherwise. Symbol Parameter Conditions Min Typ Max Unit Static characteristics VI(cm) common-mode input voltage 0 - VDD(3V3) V VO output voltage variation 0 - VDD(3V3) V Voffset offset voltage VIC = 0.1 V - 4 to +4.2 - mV VIC = 1.5 V - 2 mV VIC = 2.8 V - 2.5 SSL3401HN Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 - mV © NXP B.V. 2014. All rights reserved. 20 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting Table 13. Comparator characteristics …continued VDD(3V3)= 3.0 V and Tamb = 25 C unless noted otherwise. Symbol Parameter Conditions Min Typ Max Unit Dynamic characteristics propagation delay tPD HIGH to LOW; VDD(3V3) = 3.0 V [1] VIC = 0.1 V; 50 mV overdrive input - 129 140 ns VIC = 1.5 V; 50 mV overdrive input [1] - 112 130 ns VIC = 2.9 V; 50 mV overdrive input [1] - 151 170 ns LOW to HIGH; VDD(3V3) = 3.0 V; [1] VIC = 0.1 V; 50 mV overdrive input Vhys hysteresis voltage - 232 240 ns VIC = 1.5 V; 50 mV overdrive input [1] - 210 230 ns VIC = 2.9 V; 50 mV overdrive input [1] - 166 190 ns Pin HYSTSET set HIGH or not connected - 20 - mV Pin HYSTSET set LOW - 10 - mV Pin HYSTSET set HIGH or not connected - 20 - mV Pin HYSTSET set LOW - 10 - mV comparator; positive hysteresis; VACMPx = 1.5 V [2] comparator; negative hysteresis; VACMPx = 1.5 V [1] CL = 10 pF; results from measurements on silicon samples over process corners and over the full temperature range Tamb = 40 C to +85 C. [2] Input hysteresis is relative to the reference input channel. Table 14. Protection characteristics VDD(3V3)= 3.0 V and Tamb = 25 C unless noted otherwise. Symbol Parameter Conditions Min Typ Max Unit Ilim(L)M peak inductor current limit 240 mcoil current sensing resistor; latching current disabled - 1.7 - A Vth(scp)LED LED short-circuit protection threshold voltage pin FB tprot(sc)LED LED short-circuit protection time voltage at pin FB continuously exceeding Vth(sledp); 50 Hz AC supply - 500 - ms Vth(ovp) overvoltage protection threshold voltage pin OVP - 1.9 - V Vovp(hys) overvoltage protection voltage hysteresis pin OVP Tact(th_fold) thermal foldback activation temperature die junction temperature - 105 - C Tth(otp) overtemperature protection threshold temperature die junction temperature - 125 - C SSL3401HN Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 1.8 V 0.55 V © NXP B.V. 2014. All rights reserved. 21 of 29 SSL3401HN NXP Semiconductors Low voltage dimmable controller for LED lighting 13. Application information /(0 - '  ' /%67 -B  ' -B &(0 ' *1' 9%67 -B 9 -B *1' *1' 8 93 *1'     *1' *1' 5(* 56 DDD Fig 10. Application diagram - input stage SSL3401HN Product data sheet All information provided in this document is subject to legal disclaimers. Rev. 2 — 28 January 2014 © NXP B.V. 2014. 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