ILD1150XUMA1

ILD1150 Multitopology High Power LED DC/DC Controller IC for Industrial Applications Datasheet Rev. 1.1, 2012-04-11 ILD1150 Table of Contents Table of Contents 1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 3.1 3.2 Pin Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Pin Definitions and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 4.1 4.2 4.3 General Product Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Thermal Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5.1 5.2 Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 6 6.1 6.2 Oscillator and Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 7 7.1 7.2 Enable and Dimming Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 8 8.1 8.2 Linear Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 9 9.1 9.2 Protection and Diagnostic Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 10 10.1 Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Further Application Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 11 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 12 Package Outlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Datasheet 2 8 8 9 9 Rev. 1.1, 2012-04-11 Multitopology High Power LED DC/DC Controller IC for Industrial Applications ILD1150 ILD1150 1 Overview Features • • • • • • • • • • • • • • • • Wide Input Voltage Range from 4.75 V to 45 V Constant Current or Constant Voltage Regulation Drives LEDs in Boost, Buck, Buck-Boost, SEPIC and Flyback Topology Very Low Shutdown Current: IQ< 10 µA Flexible Switching Frequency Range, 100 kHz to 500 kHz Synchronization with external clock source Output Open Circuit Diagnostic Output PG-SSOP-14 PWM Dimming Internal Soft Start 300mV High Side Current Sense to ensure highest flexibility and LED current accuracy Internal 5 V Low Drop Out Voltage Regulator Wide LED current range via simple adaptation of external components Available in a small thermally enhanced PG-SSOP-14 package Output Overvoltage Protection Over Temperature Shutdown Green Product (RoHS) Compliant Description The ILD1150 is a Multitopology High Power DC/DC Controller IC with built in protection features . The main function of this device is to regulate a constant LED current. The constant current regulation is especially beneficial for LED color accuracy and longer lifetime. The controller concept of the ILD1150 allows a multi-purpose usage such as Boost, Buck, Buck-Boost, SEPIC and Flyback configuration with various load current levels by simply adjusting the external components. The ILD1150 has a PWM output for dimming a LED load. The diagnostics are communicated on a status output (pin ST) to indicate a fault condition such as an LED open circuit. The switching frequency is adjustable in the range of 100 kHz to 500 kHz and can be synchronized to an external clock source. The ILD1150 features an enable function reducing the shut-down current consumption to VIVCC,RTH,d 4.5 45 V – -40 125 °C – Min. Max. 4.75 Note: Within the functional range the IC operates as described in the circuit description. The electrical characteristics are specified within the conditions given in the related electrical characteristics table. 4.3 Thermal Resistance Note: This thermal data was generated in accordance with JEDEC JESD51 standards. For more information, go to www.jedec.org. Pos. 4.3.1 4.3.2 Parameter Junction to Case Symbol 1) 2) Junction to Ambient 4.3.3 4.3.4 1) 3) RthJC RthJA RthJA RthJA Limit Values Unit Conditions Min. Typ. Max. – 10 – K/W – 47 – K/W 2s2p – 54 – K/W 1s0p + 600 mm2 – 64 – K/W 1s0p + 300 mm2 1) Not subject to production test, specified by design. 2) Specified RthJC value is simulated at natural convection on a cold plate setup (all pins and exposed pad are fixed to ambient temperature). Ta=25°C, IC is dissipating 1W. 3) Specified RthJA value is according to JEDEC 2s2p (JESD 51-7) + (JESD 51-5) and JEDEC 1s0p (JESD 51-3) + heatsink area at natural convection on FR4 board; The device was simulated on a 76.2 x 114.3 x 1.5mm board. The 2s2p board has 2 outer copper layers (2 x 70µm Cu) and 2 inner copper layers (2 x 35µm Cu), A thermal via (diameter = 0.3mm and 25µm plating) array was applied under the exposed pad and connected the first outer layer (top) to the first inner layer and second outer layer (bottom) of the JEDEC PCB. Ta=25°C, IC is dissipating 1W. Datasheet 9 Rev. 1.1, 2012-04-11 ILD1150 Regulator 5 Regulator 5.1 Description The ILD1150 regulator is suitable for Boost, Buck, Buck-Boost, SEPIC and Flyback configurations. The constant output current is especially useful for light emitting diode (LED) applications. The multitopology regulator function is implemented by a pulse width modulated (PWM) current mode controller. The PWM current mode controller uses the peak current through the external power switch and error in the output current to determine the appropriate pulse width duty cycle (on time) for constant output current. The current mode controller it provides a PWM signal to an internal gate driver which then outputs the same PWM signal to external n-channel enhancement mode metal oxide field effect transistor (MOSFET) power switch. The current mode controller also has built-in slope compensation to prevent sub-harmonic oscillations which is a characteristic of current mode controllers operating at high duty cycles (>50% duty). An additional built-in feature is an integrated soft start that limits the current through the inductor and external power switch during initialization. The soft start function gradually increases the inductor and switch current over 1 ms (typical) to minimize potential overvoltage at the output. OV FB H when OVFB >1.25V OVFB V Ref = 1.25V High when IVCC < 4.0V UV IVCC COMP FBH x1 EA Current Comp gmEA High when lEA - ISLOPE - I CS > 0 OFF when H IEA FBL VRef = 0.3V Low when Tj > 175 °C Soft start = V Ref 4.0V NOR R & > 1 Output Stage OFF when Low R FREQ/ SYNC Slope Comp S t Clock & INV 1 SWO Q I SL O PE I Q & Q Current Sense PWM-FF Q Error-FF IVCC Gate Driver S Oscillator & Gate Driver Supply NAND 2 & SWCS ICS SGND Figure 3 Datasheet Boost Regulator Block Diagram 10 Rev. 1.1, 2012-04-11 ILD1150 Regulator 5.2 Electrical Characteristics All parameters have been tested at 25°C, unless otherwise specified. 1) VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions VREF= VFBH -VFBL VBO= 30 V; IBO = 500 mA Min. Typ. Max. 0.28 0.30 0.32 V – – 0.15 %/V Regulator: 5.2.1 Feedback Reference Voltage 5.2.2 Voltage Line Regulation VREF ΔVREF /ΔVIN Figure 25 5.2.3 Voltage Load Regulation (ΔVREF / VREF) /ΔIBO – – 5 %/A VBO = 30V; IBO = 100 to 500 mA 5.2.4 Switch Peak Over Current Threshold VSWCS 130 150 170 mV VFBH = VFBL = 5 V VCOMP = 3.5V 5.2.5 Maximum Duty Cycle 95 % Fixed frequency mode Maximum Duty Cycle – – % Synchronization mode 5.2.7 Soft Start Ramp DMAX,fixed 90 DMAX,sync 88 tSS 350 93 5.2.6 1000 1500 µs 5.2.8 Feedback Input Current 5.2.9 Switch Current Sense Input Current VFB rising from 5% to 95% of VFB, typ. VFBH - VFBL = 0.3 V VSWCS = 150 mV 5.2.10 Input Undervoltage Shutdown 5.2.11 Input Voltage Startup Figure 25 IFBx ISWCS -10 -50 -100 µA 10 50 100 µA VIN,off VIN,on 3.75 – – V – – 4.75 V VIN decreasing VIN increasing Gate Driver for external Switch 5.2.12 Gate Driver Peak Sourcing Current1) ISWO,SRC – 380 – mA VSWO = 3.5V 5.2.13 Gate Driver Peak Sinking Current1) ISWO,SNK – 550 – mA VSWO = 1.5V 5.2.14 Gate Driver Output Rise Time tR,SWO – 30 60 ns 5.2.15 Gate Driver Output Fall Time tF,SWO – 20 40 ns 5.2.16 Gate Driver Output Voltage1) VSWO 4.5 – 5.5 V CL,SWO = 3.3nF; VSWO = 1V to 4V CL,SWO = 3.3nF; VSWO = 1V to 4V CL,SWO = 3.3nF; 1) Not subject to production test, specified by design Datasheet 11 Rev. 1.1, 2012-04-11 ILD1150 Oscillator and Synchronization 6 Oscillator and Synchronization 6.1 Description The internal oscillator is used to determine the switching frequency of the multitopology regulator. The switching frequency can be selected from 100 kHz to 500 kHz with an external resistor to GND. To set the switching frequency with an external resistor the following formula can be applied. R FREQ = 1 (141 × 10 [ ])× ( f − 12 s Ω FREQ [ ]) 1 s ( ) [Ω ] − 3 . 5 × 10 3 [Ω ] In addition, the oscillator is capable of changing from the frequency set by the external resistor to a synchronized frequency from an external clock source. If an external clock source is provided on the pin FREQ/SYNC, then the internal oscillator synchronizes to this external clock frequency and the multitopology regulator switches at the synchronized frequency. The synchronization frequency capture range is 250 kHz to 500 kHz. FREQ / SYNC Oscillator Multiplexer Clock Frequency Detector VCLK PWM Logic Gate Driver SWO R FREQ Oscillator_BlkDiag_SyncFixedMode .vsd Figure 4 Oscillator and Synchronization Block Diagram and Simplified Application Circuit TSYNC = 1 / fSYNC VSYNC tSYNC,TR tSYNC,TR tSYNC,PWH 4.5 V VSYNC,H 0.5 V VSYNC,L t Oscillator_Timing.svg Figure 5 Datasheet Synchronization Timing Diagram 12 Rev. 1.1, 2012-04-11 ILD1150 Oscillator and Synchronization 6.2 Electrical Characteristics All parameters have been tested at 25°C, unless otherwise specified. VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. fFREQ fFREQ 250 300 350 kHz RFREQ = 20kΩ 100 – 500 kHz 17% internal tolerance + external resistor tolerance Oscillator: 6.2.1 Oscillator Frequency 6.2.2 Oscillator Frequency Adjustment Range 6.2.3 FREQ / SYNC Supply Current IFREQ – – -700 µA VFREQ = 0 V 6.2.4 Frequency Voltage VFREQ 1.16 1.24 1.32 V fFREQ = 100 kHz Synchronization 6.2.5 Synchronization Frequency Capture Range fSYNC 250 – 500 kHz – 6.2.6 Synchronization Signal High Logic Level Valid VSYNC,H 3.0 – – V 1) 6.2.7 Synchronization Signal Low Logic Level Valid VSYNC,L – – 0.8 V 1) 6.2.8 Synchronization Signal Logic High Pulse Width tSYNC,PWH 200 – – ns 1) 1) Synchronization of external PWM ON signal to falling edge Datasheet 13 Rev. 1.1, 2012-04-11 ILD1150 Oscillator and Synchronization Typical Performance Characteristics of Oscillator Switching Frequency fSW versus Frequency Select Resistor to GND RFREQ/SYNC 600 500 fFREQ [kHz] 400 T j = 25 °C 300 200 100 0 0 10 20 30 40 50 60 70 80 RFREQ/SYNC [kohm] Datasheet 14 Rev. 1.1, 2012-04-11 ILD1150 Enable and Dimming Function 7 Enable and Dimming Function 7.1 Description The enable function powers on or off the device. A valid logic low signal on enable pin EN/PWMI powers off the device and current consumption is less than 10 µA. A valid logic high enable signal on enable pin EN/PWMI powers on the device. The enable function features an integrated pull down resistor which ensures that the IC is shut down and the power switch is off in case the enable pin EN is left open. In addition to the enable function described above, the EN/PWMI pin detects a pulse width modulated (PWM) input signal that is fed through to an internal gate driver. The internal gate driver outputs the same PWM signal on the PWMO pin to an external n-channel enhancement mode MOSFET for PWM dimming an LED load. PWM dimming an LED is a commonly practiced dimming method to prevent color shift in an LED light source. Moreover the PWM output function may also be used for to drive other types of loads besides LED. The enable and PWM input function share the same pin. Therefore a valid logic low signal at the EN/PWMI pin needs to differentiate between an enable power off signal or an PWM low signal. The device differentiates between an enable off command and PWM dimming signal by requiring the signal at the EN/PWMI pin to stay low for a minimum of 8 ms. IN 14 Enable Microcontroller EN / PWMI 13 Enable / PWMI Logic LDO Enable 1 Gate Driver PWMI 2 Gate Driver 5 IVCC SWO PWMO EN_PWMI_BlockDiagram.svg Figure 6 Datasheet Block Diagram and Simplified Application Circuit Enable and LED Dimming 15 Rev. 1.1, 2012-04-11 ILD1150 Enable and Dimming Function tEN,START TPWMI tPWMI,H tEN,OFF,DEL VEN/PWMI VEN/PWMI,ON VEN/PWMI,OFF t VIVCC VIVCC,ON VIVCC,RTH t VPWMO t 1 fFREQ TFREQ = VSWO t Power On Normal Dim Normal Dim Normal SWO On PWMO Off SWO On PWMO Off SWO On PWMO On SWO Off PWMO On SWO Off PWMO On Power Off Delay Time Power Off Iq < 10 μA EN_PWMI_Timing.svg Figure 7 Timing Diagram Enable and LED Dimming 7.2 Electrical Characteristics All parameters have been tested at 25°C, unless otherwise specified. VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Pos. Parameter Symbol Limit Values Min. Typ. 3.0 – Unit Conditions V – Max. Enable/PWM Input: 7.2.1 Enable/PWMI Turn On Threshold VEN/PWMI,ON 7.2.2 Enable/PWMI Turn Off Threshold VEN/PWMI,OFF – – 0.8 V – 7.2.3 Enable/PWMI Hysteresis VEN/PWMI,HYS 50 200 400 mV – Datasheet 16 Rev. 1.1, 2012-04-11 ILD1150 Enable and Dimming Function VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Pos. Parameter Symbol Limit Values Min. Typ. Max. Unit Conditions 7.2.4 Enable/PWMI High Input Current IEN/PWMI,H – – 30 µA VEN/PWMI = 16.0 V 7.2.5 Enable/PWMI Low Input Current IEN/PWMI,L – 0.1 1 µA VEN/PWMI = 0.5 V 7.2.6 Enable Turn Off Delay Time tEN,OFF,DEL 8 10 12 ms – 7.2.7 PWMI Min Duty Time – – µs Enable Startup Time tPWMI,H tEN,START 4 7.2.8 100 – – µs Gate Driver for Dimming Switch: 7.2.9 PWMO Gate Driver Peak Sourcing Current1) IPWMO,SRC – 230 – mA VPWMO = 3.5V 7.2.10 PWMO Gate Driver Peak Sinking Current1) IPWMO,SNK – 370 – mA VPWMO = 1.5V 7.2.11 PWMO Gate Driver Output Rise Time tR,PWMO – 50 100 ns 7.2.12 PWMO Gate Driver Output Fall Time tF,PWMO – 30 60 ns 7.2.13 PWMO Gate Driver Output Voltage VPWMO 4.5 – 5.5 V CL,PWMO = 3.3nF; VPWMO = 1V to 4V CL,PWMO = 3.3nF; VPWMO = 1V to 4V CL,PWMO = 3.3nF; Current Consumption 7.2.14 Current Consumption, Shutdown Mode Iq_off – – 10 µA 7.2.15 Current Consumption, Active Mode2) Iq_on – – 7 mA VEN/PWMI = 0.8 V; Tj ≤ 105C; VIN = 16V VEN/PWMI ≥ 4.75 V; IBO = 0 mA; VIN = 16V VSWO = 0% Duty 1) Not subject to production test, specified by design 2) Dependency on switching frequency and gate charge of external switches. Datasheet 17 Rev. 1.1, 2012-04-11 ILD1150 Linear Regulator 8 Linear Regulator 8.1 Description The internal linear voltage regulator supplies the internal gate drivers with a typical voltage of 5 V and current up to 50 mA. An external output capacitor with low ESR is required on pin IVCC for stability and buffering transient load currents. During normal operation the external MOSFET switches will draw transient currents from the linear regulator and its output capacitor. Proper sizing of the output capacitor must be considered to supply sufficient peak current to the gate of the external MOSFET switches. Integrated undervoltage protection for the external switching MOSFET: An integrated undervoltage reset threshold circuit monitors the linear regulator output voltage (VIVCC) and resets the device in case the output voltage falls below the IVCC undervoltage reset switch OFF threshold (VIVCC,RTH,d). The undervoltage reset threshold for the IVCC pin helps to protect the external switches from excessive power dissipation by ensuring the gate drive voltage is sufficient to enhance the gate of an external logic level n-channel MOSFET. IN 14 1 IVCC Linear Regulator EN / PWMI 13 Gate Drivers LinReg_BlckDiag.vsd Figure 8 Datasheet Voltage Regulator Block Diagram and Simplified Application Circuit 18 Rev. 1.1, 2012-04-11 ILD1150 Linear Regulator 8.2 Electrical Characteristics VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Pos. Parameter Symbol Min. Typ. Max. 8.2.1 Output Voltage VIVCC 4.6 5 8.2.2 Output Current Limitation ILIM 51 8.2.3 8.2.6 VDR Output Capacitor CIVCC 0.47 Output Capacitor ESR RIVCC,ESR Undervoltage Reset Headroom VIVCC,HDRM 100 8.2.7 Undervoltage Reset Threshold VIVCC,RTH,d 8.2.8 Undervoltage Reset Threshold VIVCC,RTH,i 8.2.4 8.2.5 Limit Values Unit Conditions 5.4 V 6 V ≤ VIN ≤ 45 V 0.1 mA ≤ IIVCC ≤ 50 mA 90 mA 1.4 V VIN = 13.5 V VIVCC = 4.5V IIVCC = 50mA 1) – µF 2) 0.5 Ω – – mV 4.0 – – V – – 4.5 V f = 10kHz VIVCC decreasing VIVCC - VIVCC,RTH,d VIVCC decreasing VIVCC increasing Drop out Voltage 1) Measured when the output voltage VCC has dropped 100 mV from its nominal value. 2) Minimum value given is needed for regulator stability; application might need higher capacitance than the minimum. Datasheet 19 Rev. 1.1, 2012-04-11 ILD1150 Protection and Diagnostic Functions 9 Protection and Diagnostic Functions 9.1 Description The ILD1150 has integrated circuits to diagnose and protect against output overvoltage, open load, open feedback and overtemperature faults. In case any of the four fault conditions occur the Status output ST will output an active logic low signal to communicate that a fault has occurred. During an overvoltage or open load condition the gate driver outputs SWO and PWMO will turn off. Figure 11 illustrates the various open load and open feedback conditions. In the event of an overtemperature condition (Figure 14) the integrated thermal shutdown function turns off the gate drivers and internal linear voltage regulator. The typical junction shutdown temperature is 175°C. After cooling down the IC will automatically restart operation. Thermal shutdown is an integrated protection function designed to prevent immediate IC destruction and is not intended for continuous use in normal operation. Input Output Protection and Diagnostic Circuit Output Overvoltage Open Load SWO and PWMO Gate Driver Off OR Open Feedback Overtemperature Linear Regualtor Off OR Input Undervoltage Pro_Diag_BlckDiag.vsd Figure 9 Protection and Diagnostic Function Block Diagram Input Condition Overvoltage Open Load Open Feedback Overtemperature Level* False True False True False True False True ST H L H L H L H L Pro_Diag_TT.vsd *Note: Sw = Switching False = Condition does not exist True = Condition does exist Figure 10 Datasheet Output SWO PWMO IVCC Sw* H or Sw * Active L L Active Sw* H or Sw * Active L L Active Sw* H or Sw * Active L L Active Sw* H or Sw * Active L L Shutdown Status Output Truth Table 20 Rev. 1.1, 2012-04-11 ILD1150 Protection and Diagnostic Functions VBO Output Open Circuit Conditions Open Circuit 3 Open Circuit 1 ROVH Open Circuit 2 9 VOVFB,TH D1 ROVL D2 Fault Threshold Voltage VREF 1 Open FBH -20 to -100 mV 2 Open FBL 0.5 to 1.0 V 3 Open VBO VFBx < VFBx,min = 4.5V 4 Open PWMO Detected by overvoltage D3 Feedback Voltage Error Amplifier FBH FBL VREF D4 6 7 D5 + VREF - D6 Max Threshold = 1.0 V D7 D8 Min Threshold = 0.5 V D9 D10 Typical V REF = 0.3 V Open Circuit 4 Max Threshold = -20 mV TDIM PWMO Figure 11 Open FBL OVFB Fault Condition Min Threshold = -100 mV 5 Open FBH Open VBO Overvoltage Compartor RFB Open Circuit Condition Open Load and Open Feedback Conditions VOVFB example: VOUT,max=40V VOVP,max 1.25mA ROVH OVFB VOVFB,TH 9 ROVL GND Overvoltage Protection ACTIVE 40V ≅ 33.2kΩ 1.25mA 1kΩ 1.25V 1.25V Overvoltage Protection is disabled 12 t Figure 12 Datasheet Overvoltage Protection description 21 Rev. 1.1, 2012-04-11 ILD1150 Protection and Diagnostic Functions Status Output Timing Diagram Startup Normal Thermal Shutdown 1 VIVCC Overvoltage Open Load / Feedback 2 3 Shutdown VIVCC,RTH,i VIVCC,RTH ,d TJ T J,SD,HYST t 1 TJ,SD VBO t 2 VOVFB ≥ VOVFB,TH VOVFB < V OVFB,T L VFBH -VFBL VREF,2 t 3 tSS tSS 0.3 V Typ t VREF,1 VST tSD tSD tSD t Figure 13 Datasheet Status Output Timing Diagram 22 Rev. 1.1, 2012-04-11 ILD1150 Protection and Diagnostic Functions VEN/PWMI H L t Tj TjSD ΔΤ TjSO t Ta VSWO t ILED Ipeak t VPWMO t VST and VIVCC 5V t Device OFF Figure 14 Datasheet Normal Operation Overtemp Fault ON Overtemp Fault ON Overtemp ON Fault Overtemp Fault Device overtemperature protection behavior 23 Rev. 1.1, 2012-04-11 ILD1150 Protection and Diagnostic Functions 9.2 Electrical Characteristics All parameters have been tested at 25°C, unless otherwise specified. VIN = 24V, Tj = -40 ⋅C to +125 ⋅C, all voltages with respect to ground, positive current flowing into pin; (unless otherwise specified) Pos. Parameter Symbol Limit Values Unit Conditions Min. Typ. Max. – – 0.4 V 2 – – mA – – 1 µA IST = 1mA VST = 1V VST = 5V 8 10 12 ms – Tj,SD 160 Tj,SD,HYST – 175 190 °C – 15 – °C – 1.25 1.29 V – Status Output: 9.2.1 Status Output Voltage Low 9.2.2 Status Sink Current Limit 9.2.3 Status Output Current 9.2.4 Status Delay Time VST,LOW IST,MAX IST,HIGH tSD Temperature Protection: 9.2.5 Over Temperature Shutdown 9.2.6 Over Temperature Shutdown Hystereses Overvoltage Protection: 9.2.7 Output Over Voltage Feedback Threshold Increasing VOVFB,TH 9.2.8 Output Over Voltage Feedback Hysteresis VOVFB,HYS 50 – 150 mV Output Voltage decreasing 9.2.9 Over Voltage Reaction Time tOVPRR 2 – 10 µs Output Voltage decreasing 9.2.10 Over Voltage Feedback Input Current IOVFB -1 0.1 1 µA VOVFB = 1.25 V -100 – -20 mV VREF = VFBH - VFBL 1.21 Open Load and Open Feedback Diagnostics 9.2.11 9.2.12 Open Load/Feedback Threshold VREF,1,3 Open Feedback Threshold VREF,2 Open Circuit 1 or 3 0.5 – 1 V VREF = VFBH - VFBL Open Circuit 2 Note: Integrated protection functions are designed to prevent IC destruction under fault conditions described in the data sheet. Fault conditions are considered as “outside” normal operating range. Protection functions are not designed for continuous repetitive operation. Datasheet 24 Rev. 1.1, 2012-04-11 ILD1150 Application Information 10 Application Information Note: The following information is given as a hint for the implementation of the device only and shall not be regarded as a description or warranty of a certain functionality, condition or quality of the device. LBO DBO VIN = 4.75V to 45V CIN CBO RFB 1 VCC or VIVCC SWO 2 SWCS 4 IN IVCC D1 CIVCC RCS SGND 3 OVFB 9 RST STATUS 10 IC2 Microcontroller (e.g. XC866) ST D3 ROVH D4 D5 IC1 ILD1150 PWMI D2 ROVL D6 D7 Classic Boost Setup: VOUT > VIN 14 VREF TSW D8 Digital Dimming 13 EN / PWMI Spread Spectrum 11 FREQ / SYNC 8 COMP FBH 6 FBL 7 PWMO 5 D9 ILED D10 CCOMP PWMO RFREQ Figure 15 TDIM GND RCOMP 12 Boost to Ground Application Circuit - B2G (Boost configuration) Reference Designator Value Manufacturer Part Number D1 - 10 White Osram DBO Schottky, 3 A, 100 VR Vishay CIN , CBO 100 uF, 50V CCOMP 10 nF CIVCC IC1 Type Quantity LUW H9GP LED 10 SS3H10 Diode 1 Panasonic EEEFK1H101GP Capacitor 2 EPCOS X7R Capacitor 1 1uF , 6.3V EPCOS MLCC CCNPZC105KBW X7R Capacitor 1 -- Infineon ILD1150 IC 1 IC2 -- Infineon XC866 IC 1 LBO 100 uH Coilcraft MSS1278T-104ML Inductor 1 RCOMP 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 1 RFB 820 mΩ, 1% Panasonic ERJ14BQFR82U Resistor 1 RFREQ, RST 20 kΩ, 1% Panasonic ERJ3EKF2002V Resistor 2 ROVH 33.2 kΩ, 1% Panasonic ERJ3EKF3322V Resistor 1 ROVL 1 kΩ, 1% Panasonic ERJ3EKF1001V Resistor 1 RCS 50 mΩ, 1% Panasonic ERJB1CFR05U Resistor 1 TDIM,TSW Dual N-ch enh. (60V, 20A) Infineon IPG20N06S4L-26 Transistor 1 alternativ: 100V N-ch, 35A Infineon IPG20N10S4L-22 Transistor 2 alternativ : 60V N-ch, 2.6A Infineon BSP318S Transistor 2 Figure 16 Datasheet Bill of Materials for B2G Application Circuit 25 Rev. 1.1, 2012-04-11 ILD1150 Application Information L1 DBO CSEPIC VIN CIN ISW RFB L2 14 IN TSW SWO 2 SWCS 4 ILED VCC or VIVCC RCS RST STATUS IC2 Microcontroller (e.g. XC866) VREF CBO 10 ST PWMI SGND 3 OVFB 9 D2 D3 IC1 ILD1150 Digital Dimming 13 EN / PWMI Spread Spectrum 11 FREQ / SYNC 8 COMP D1 ROVH ROVL D4 D5 D6 D7 FBH 6 FBL 7 IVCC 1 CCOMP DPOL RPOL Number of LEDs could be variable independent from VIN: Æ BUCK-BOOST configuration VIN = 4.75V to 45V Dn CIVCC RFREQ RCOMP PWMO PWMO TDIM 5 GND 12 Figure 17 SEPIC Application Circuit (Buck-Boost configuration) Reference Designator Value Manufacturer Part Number D1 - n White Osram DBO Schottky, 3 A, 100 VR Vishay DPOL 80V Diode Infineon Type Quantity LUW H9GP LED variable SS3H10 Diode 1 BAS1603W Diode 1 CSEPIC 3.3 uF, 20V EPCOS X7R, Low ESR Capacitor 1 CIN , CBO 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 2 CCOMP 10 nF EPCOS X7R Capacitor 1 CIVCC 1uF , 6.3V EPCOS X7R Capacitor 1 IC1 -- Infineon ILD1150 IC 1 IC2 -- Infineon XC866 IC 1 L1 , L2 47 uH Coilcraft MSS1278T-473ML Inductor 2 alternativ: 22uH coupled inductor Coilcraft MSD1278-223MLD Inductor 1 RCOMP, RPOL 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 2 RFB 820 mΩ, 1% Panasonic ERJ14BQFR82U Resistor 1 RFREQ, RST 20 kΩ, 1% Panasonic ERJ3EKF2002V Resistor 2 ROVH 33.2 kΩ, 1% Panasonic ERJ3EKF3322V Resistor 1 ROVL 1 kΩ, 1% Panasonic ERJ3EKF1001V Resistor 1 RCS 50 mΩ, 1% Panasonic ERJB1CFR05U Resistor 1 TDIM,TSW Dual N-ch enh. (60V, 20A) Infineon IPG20N06S4L-26 Transistor 1 alternativ: 100V N-ch, 35A Infineon IPD35N10S3L-26 Transistor 2 alternativ : 60V N-ch, 2.6A Infineon BSP318S Transistor 2 Figure 18 Datasheet Bill of Materials for SEPIC Application Circuit 26 Rev. 1.1, 2012-04-11 ILD1150 Application Information DBO VIN VIN = 4.75V to 45V L1 CIN ISW RFB L2 14 IN TSW SWO 2 SWCS 4 ILED VCC or V IVCC RCS STATUS 10 ST PWMI Digital Dimming 13 Output SGND 3 OVFB 9 R OVH D1 D2 IC1 ILD1150 D3 R OVL D4 D5 D6 EN / PWMI 11 FREQ / SYNC 8 COMP FBH 6 FBL 7 IVCC 1 D7 CCOMP DPOL Number of LEDs could be variable independent from VIN: Æ BUCK-BOOST configuration R ST IC2 Microcontroller (e.g. XC866) VREF CBO RPOL Dn C IVCC RFREQ RCOMP PWMO GND PWMO 12 Figure 19 TDIM 5 Flyback Application Circuit (Buck-Boost configuration) Reference Designator Value Manufacturer Part Number Type Quantity D1 - n White Osram LUW H9GP LED variable DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 CBO 3.3 uF, 50V (100V) EPCOS X7R, Low ESR Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CCOMP 47 nF EPCOS X7R Capacitor 1 CIVCC 1 uF , 6.3V EPCOS X7R Capacitor 1 IC1 -- Infineon ILD1150 IC 1 IC2 -- Infineon XC866 IC 1 L1 , L2 1 µH / 9 uH EPCOS Transformer EHP 16 Inductor 1 RCOMP, RPOL 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 2 DPOL 80 V Diode Infineon BAS1603W Diode 1 RFB 820 mΩ, 1% Isabellenhütte SMS – Power Resistor Resistor 1 RFREQ, RST 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 2 ROVH 56.2 kΩ, 1% Panasonic ERJ3EKF5622V Resistor 1 ROVL 1.24 kΩ, 1% Panasonic ERJ3EKF1241V Resistor 1 RCS 5 mΩ, 1% Isabellenhütte SMS - Power Resistor Resistor 1 TDIM,TSW Dual N-ch enh. (60V, 20A) Infineon IPG20N06S4L-26 Transistor 1 alternativ: 100V N-ch, 35A Infineon IPG20N10S4L-22 Transistor 2 alternativ : 60V N-ch, 2.6A Infineon BSP318S Transistor 2 Figure 20 Datasheet Bill of Materials for Flyback Application Circuit 27 Rev. 1.1, 2012-04-11 ILD1150 Application Information DBO CBO VREF D2 D1 LBO VIN = 4.75V to 45V CIN RFB 14 CIVCC 1 IN IVCC BUCK Setup: VIN > VOUT I LED TSW SWO 2 SWCS 4 SGND 3 OVFB 9 FBH 6 FBL 7 PWMO 5 VCC or VIVCC RCS RST STATUS 10 ST 13 EN / PWMI 11 FREQ / SYNC 8 COMP IC1 ILD1150 IC2 Microcontroller (e.g. XC866) Enable Spread Spectrum C COMP RFREQ Figure 21 GND R COMP 12 Buck Application Circuit Reference Designator Value Manufacturer Part Number Type Quantity D1 -2 White Osram LE UW Q9WP LED 2 DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 CBO 4.7 uF, 50V EPCOS X7R Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK 1H101GP Capacitor 1 CCOMP 47 nF EPCOS X7R Capacitor 1 CIVCC 1 uF , 6.3V EPCOS MLCC CCNPZC105KBW X7R Capacitor 1 IC1 -- Infineon ILD1150 IC 1 IC2 -- Infineon XC866 IC 1 L1 22 µH Coilcraft MSS1278T Inductor 1 RCOMP 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 1 RFB 820 mΩ, 1% Isabellenhütte SMS – Power Resistor Resistor 1 RFREQ, RST 20 kΩ, 1% Panasonic ERJ3EKF2002V Resistor 2 RCS 50 mΩ, 1% Isabellenhütte SMS - Power Resistor Resistor 1 TSW 30V, 22A Infineon IPB22N03S4L-15 Transistor 1 alternativ : 60V N-ch, 2.6A Infineon BSP318S Transistor 1 Figure 22 Datasheet Bill of Materials for Buck Application Circuit 28 Rev. 1.1, 2012-04-11 ILD1150 Application Information C BO RFB TDIM2 VIN = 4.75V to 45V CIN DZ Dn RDIM2 D1 Number of LEDs could be variable independent from VIN: Æ BUCK-BOOST configuration R DIM1 LBO DBO TD IM1 ILED ISW PWMO VOUT PWMO 5 VC C or V IVCC RST 6 FBH 7 FBL 10 2 SWCS 4 TSW RC S IN 14 STATUS SWO ST SGND 3 OVFB 9 ROVH IC1 ILD1150 IC2 Microcontroller (e.g. XC866) PWMI Digital Dimming 13 EN / PWMI Spread Spectrum 11 FREQ / SYNC ROVL COMP 8 IVCC 1 CCOMP CIVCC GND R FR EQ Figure 23 RCOMP 12 Boost to Battery Application Circuit - B2B (Buck-Boost configuration) Reference Designator Value Manufacturer Part Number Type Quantity D1 - n White Osram LUW H9GP Diode variable DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 DZ 5V Vishay Zener Diode 1 CBO 100 uF, 80V Panasonic EEVFK1K101Q Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CCOMP 10 nF EPCOS X7R Capacitor 1 CIVCC 1 uF, 6.3V EPCOS MLCC CCNPZC105KBW X7R Capacitor 1 IC1 -- Infineon ILD1150 IC 1 IC2 -- Infineon XC866 IC 1 LBO 100 uH Coilcraft MSS1278T-104ML_ Inductor 1 RCOMP, RDIM1, RDIM2 10 kΩ, 1% Panasonic ERJ3EKF1002V Resistor 3 RFB 820 mΩ, 1% Panasonic ERJ14BQFR82U Resistor 1 RFREQ, RST 20 kΩ, 1% Panasonic ERJ3EKF2002V Resistor 2 ROVH 33.2 kΩ, 1% Panasonic ERJP06F5102V Resistor 1 ROVL 1 kΩ, 1% Panasonic ERJ3EKF1001V Resistor 1 RCS 50 mΩ, 1% Panasonic ERJB1CFR05U Resistor 1 TDIM1,TDIM2 60V Dual N-ch (3.1A) and P-ch. enh. (2A) Infineon BSO615CG Transistor 1 alternativ: 100V N-ch (0.37A), Infineon BSP123 Transistor 1 alternativ: 60V P-ch (1.9A) Infineon BSP171P Transistor 1 N-ch, OptiMOS-T2 100V, 35A Infineon IPD35N10S3L-26 Applicationdrawing _plus_BOM_B2B_IL Transistor 1 D1150 _April2012 .vsd alternativ: 60V N-ch, 30A Infineon IPD30N06S4L-23 Transistor 1 alternativ : 60V N-ch, 2.6A Infineon BSP318S Transistor 1 TSW Figure 24 Datasheet Bill of Materials for B2B Application Circuit 29 Rev. 1.1, 2012-04-11 ILD1150 Application Information LBO DBO ILoad VIN = 4.75V to 45V CBO CIN constant VOUT RL 14 1 CIVCC VCC or VIVCC IVCC 10 IC2 Microcontroller (e.g. XC866) 5 ST PWMO 13 EN / PWMI Spread Spectrum 11 FREQ / SYNC 4 8 COMP RCOMP SGND 3 OVFB 9 ROVH ROVL RFB1 FBH 6 RFB2 CCOMP Figure 25 SWCS TSW IC1 ILD1150 Enable RFREQ 2 RCS RST STATUS SWO IN FBL VREF 7 RFB3 GND 12 Boost Voltage Application Circuit Reference Designator Value Manufacturer Part Number Type Quantity DBO Schottky, 3 A, 100 VR Vishay SS3H10 Diode 1 CBO 100 uF, 80V Panasonic EEVFK1K101Q Capacitor 1 CIN 100 uF, 50V Panasonic EEEFK1H101GP Capacitor 1 CCOMP 10 nF, 16V EPCOS X7R Capacitor 1 CIVCC 1 uF, 6.3V Panasonic X7R Capacitor 1 IC1 -- Infineon ILD1150 IC 1 IC2 -- Infineon XC866 IC 1 LBO 100 uH Coilcraft MSS1278T-104ML_ Inductor 1 RCOMP 10 kohms, 1% Panasonic ERJ3EKF1002V Resistor 1 RFB1,RFB3 51 kohms, 1% Panasonic ERJ3EKF5102V Resistor 2 RFB2 1 kohms, 1% Panasonic ERJ3EKF1001V Resistor 1 RFREQ, RST 20 kohms, 1% Panasonic ERJ3EKF2002V Resistor 2 ROVH 33.2 kohms, 1% Panasonic ERJ3EKF3322V Resistor 1 ROVL 1 kohms, 1% Panasonic ERJ3EKF1001V Resistor 1 RCS 50 mohms, 1% Panasonic ERJB1CFR05U Resistor 1 TSW N-ch, OptiMOS-T2 100V Infineon IPG20N10S4L-22 Transistor 1 Figure 26 Bill of Materials for Boost Voltage Application Circuit Note: The application drawings and corresponding bill of materials are simplified examples. Optimization of the external components must be done accordingly to specific application requirements. Datasheet 30 Rev. 1.1, 2012-04-11 ILD1150 Application Information 10.1 • • Further Application Information For further information you may contact http://www.infineon.com/ Application Note: ILD1150 / ILD1151 DC-DC Multitopology Controller IC for Industrial Applications “Dimensioning and Stability Guideline - Theory and Practice” Datasheet 31 Rev. 1.1, 2012-04-11 ILD1150 Revision History 11 Revision History Revision Date Changes 1.0 2011-11-16 Initial Datasheet 1.1 2012-04-11 Page 3: RoHS Logo update Page 3: Topology update Application Information chapter update Datasheet 32 Rev. 1.1, 2012-04-11 ILD1150 Package Outlines 12 Package Outlines 0.15 M C A-B D 14x 0.64 ±0.25 1 8 1 7 0.2 M D 8x Bottom View 3 ±0.2 A 14 6 ±0.2 D Exposed Diepad B 0.1 C A-B 2x 14 7 8 2.65 ±0.2 0.25 ±0.05 2) 0.08 C 8˚ MAX. C 0.65 0.1 C D 0.19 +0.06 1.7 MAX. Stand Off (1.45) 0 ... 0.1 0.35 x 45˚ 3.9 ±0.11) 4.9 ±0.11) Index Marking 1) Does not include plastic or metal protrusion of 0.15 max. per side 2) Does not include dambar protrusion PG-SSOP-14-1,-2,-3-PO V02 PG-SSOP-14 Figure 27 PG-SSOP-14 Green Product (RoHS compliant) To meet the world-wide customer requirements for environmentally friendly products and to be compliant with government regulations the device is available as a green product. Green products are RoHS-Compliant (i.e Pb-free finish on leads and suitable for Pb-free soldering according to IPC/JEDEC J-STD-020). For further package information, please visit our website: http://www.infineon.com/packages. Datasheet 33 Dimensions in mm Rev. 1.1, 2012-04-11 Edition 2012-04-11 Published by Infineon Technologies AG 81726 Munich, Germany © 2012 Infineon Technologies AG All Rights Reserved. Legal Disclaimer The information given in this document shall in no event be regarded as a guarantee of conditions or characteristics. With respect to any examples or hints given herein, any typical values stated herein and/or any information regarding the application of the device, Infineon Technologies hereby disclaims any and all warranties and liabilities of any kind, including without limitation, warranties of non-infringement of intellectual property rights of any third party. Information For further information on technology, delivery terms and conditions and prices, please contact the nearest Infineon Technologies Office (www.infineon.com). Warnings Due to technical requirements, components may contain dangerous substances. For information on the types in question, please contact the nearest Infineon Technologies Office. Infineon Technologies components may be used in life-support devices or systems only with the express written approval of Infineon Technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system or to affect the safety or effectiveness of that device or system. Life support devices or systems are intended to be implanted in the human body or to support and/or maintain and sustain and/or protect human life. If they fail, it is reasonable to assume that the health of the user or other persons may be endangered.