APW7136A/B/C 1MHz, High-Efficiency, Step-Up Converter for 2 to 8 White LEDs Features General Description * Wide Input Voltage from 2.7V to 6V * 0.25V Reference Voltage The APW7136A/B/C is a current-mode and fixed frequency boost converter with an integrated N-FET to drive up to 8 * Fixed 1MHz Switching Frequency * High Efficiency up to 87% * 100Hz to 100kHz PWM Brightness Control white LEDs in series. The series connection allows the LED current to be identical for uniform brightness. Its low on-resistance of NFET and feedback voltage reduce power loss and achieve Frequency high efficiency. Fast 1MHz current-mode PWM operation is available for input and output capacitors and a small * Open-LED Protection * Under-Voltage Lockout Protection * Over-Temperature Protection * <1A Quiescent Current Dduring Shutdown * SOT-23-6 Packages * Lead Free and Green Devices Available inductor while minimizing ripple on the input supply. The OVP pin monitors the output voltage and stops switching if exceeds the over-voltage threshold. An internal softstart circuit eliminates the inrush current during start-up. The APW 7136A/B/C also integrates under-voltage lockout, over-temperature protection, and current-limit (RoHS Compliant) circuits. The APW7136/A/B/C is available in a SOT-23-6 packages. Applications Simplified Application Circuit * White LED Display Backlighting * Cell Phone and Smart Phone * PDA, PMP, MP3 * L1 VIN VOUT 22H C1 6 4.7F Digital Camera 2 OFF ON Pin Configuration 4 VIN GND EN LX OVP FB 1 5 C2 1F Up to 8 WLEDs 3 R1 12 SOT-23-6 Top View LX 1 GND 2 FB 3 6 VIN 5 OVP 4 EN ANPEC reserves the right to make changes to improve reliability or manufacturability without notice, and advise customers to obtain the latest version of relevant information to verify before placing orders. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 1 www.anpec.com.tw APW7136A/B/C Ordering and Marking Information OVP Voltage Code A: 20V B: 28V C: 35V Package Code C : SOT-23-6 Operating Ambient Temperature Range I : -40 to 85oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device APW7136 Assembly Material Handling Code Temperature Range Package Code OVP Voltage Code APW7136YCI : Y - OVP Voltage Code X - Date Code CFYX Note: ANPEC lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. ANPEC lead-free products meet or exceed the lead-free requirements of IPC/JEDEC J-STD-020D for MSL classification at lead-free peak reflow temperature. ANPEC defines "Green" to mean lead-free (RoHS compliant) and halogen free (Br or Cl does not exceed 900ppm by weight in homogeneous material and total of Br and Cl does not exceed 1500ppm by weight). Absolute Maximum Ratings Symbol (Note 1) Rating Unit -0.3 ~ 8 V FB, EN to GND Voltage -0.3 ~ VIN V VLX LX to GND Voltage -0.3 ~ 38 V VOVP OVP to GND Voltage -0.3 ~ 38 VIN TJ Parameter VIN Supply Voltage (VIN to GND) Maximum Junction Temperature TSTG Storage Temperature Range TSDR Maximum Lead Soldering Temperature, 10 Seconds V 150 o -65 ~ 150 o 260 o C C C Note 1: Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and 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. Thermal Characteristics Symbol JA Parameter Junction to Ambient Thermal Resistance Rating Unit 250 C/W (Note 2) SOT-23-6 Note 2: JA is measured with the component mounted on a high effective thermal conductivity test board in free air. The exposed pad of package is soldered directly on the PCB. Recommended Operating Conditions (Note 3) Symbol VIN VOUT CIN COUT L1 Parameter VIN Input Voltage Converter Output Voltage Range Unit 2.7~ 6 V Up to 32 V Input Capacitor 4.7 or higher F Output Capacitor 0.68 or higher F 6.8 to 47 H Inductor Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 2 www.anpec.com.tw APW7136A/B/C Recommended Operating Conditions (Note 3) (Cont.) Symbol Range Unit TA Ambient Temperature Parameter -40 to 85 C TJ Junction Temperature -40 to 125 C Note 3: Refer to the application circuit for further information. Electrical Characteristics (Refer to Figure 1 in the "Typical Application Circuits." These specifications apply over VIN = 3.6V, TA = -40C to 85C, unless otherwise noted. Typical values are at TA = 25C.) Symbol Parameter APW7136A/B/C Test Conditions Unit Min. Typ. Max. TA = -40 ~ 85C, TJ = -40 ~ 125C 2.7 - 6 VFB = 1.3V, no switching SUPPLY VOLTAGE AND CURRENT VIN Input Voltage Range IDD1 IDD2 Input DC Bias Current ISD V 70 100 130 A FB = GND, switching - 1 2 mA EN = GND - - 1 A VIN Rising 2.0 2.2 2.4 V 50 100 150 mV TA = 25C 237 250 263 TA = -40 ~ 85C (TJ = -40 ~ 125C) 230 - 270 -50 - 50 nA 0.8 1.0 1.2 MHz - 0.6 - 0.7 0.9 1.2 A -1 - 1 A 92 95 98 % APW7136A - 20 - APW7136B - 28 - APW7136C - 35 - - 3 - V - - 50 A 0.4 0.7 1 V - 0.1 - V VEN= 0~5V, VIN = 5V -1 - 1 A TJ Rising - 150 - C - 40 - C UNDER-VOLTAGE LOCKOUT UVLO Threshold Voltage UVLO Hysteresis Voltage REFERENCE AND OUTPUT VOLTAGES VREF IFB Regulated Feedback Voltage FB Input Current mV INTERNAL POWER SWITCH FSW Switching Frequency RON Power Switch On Resistance ILIM Power Switch Current-Limit LX Leakage Current DMAX FB=GND VEN=0V, VLX=0V or 5V, VIN = 5V LX Maximum Duty Cycle OUTPUT OVER-VOLTAGE PROTECTION VOVP Over-Voltage Threshold OVP Hysteresis OVP Leakage Current VOVP =30V, EN=VIN V ENABLE AND SHUTDOWN VTEN EN Voltage Threshold VEN Rising EN Voltage Hysteresis ILEN EN Leakage Current OVER-TEMPERATURE PROTECTION TOTP Over-Temperature Protection Over-Temperature Protection Hysteresis Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 3 www.anpec.com.tw APW7136A/B/C Typical Operating Characteristics (Refer to Figure 1 in the section "Typical Application Circuits," VIN=3.6V, TA=25oC, 8WLEDs unless otherwise specified.) Efficiency vs. WLED Current 95 90 90 85 85 80 80 Efficiency () Efficiency () Efficiency vs. WLED Current 95 75 VIN=5V 70 VIN=4.2V 65 VIN=3.6V 60 VIN=3.3V 55 75 VIN=5V 70 VIN=4.2V 65 VIN=3.6V 60 8 WLEDs 25.6V@20mA =POUT/PIN 50 50 0 5 10 15 20 25 30 0 5 WLED Current, ILED (mA) 90 18 WLED Current, ILED (mA) 95 Efficiency () 85 80 75 VIN=5V VIN=4.2V 65 VIN=3.6V 60 VIN=3.3V 4 WLEDs 13V@20mA =POUT/PIN 55 15 20 25 30 WLED Current vs. PWM Duty Cycle 20 70 10 WLED Current, ILED (mA) Efficiency vs. WLED Current 16 14 12 10 8 6 100KHz 4 1kHz 2 50 100Hz 0 0 5 10 15 20 25 30 0 20 Supply Voltage, V IN (V) 40 60 80 100 PWM Duty Cycle (%) WLED Current vs. Supply Voltage Switch ON Resistance vs. Supply Voltage 21.0 0.8 20.8 0.7 Switch ON Resistance, RON () WLED Current, ILED (mA) 6 WLEDs 19.3V@20mA =POUT/PIN VIN=3.3V 55 20.6 20.4 20.2 20.0 19.8 19.6 19.4 19.2 0.6 0.5 0.4 0.3 0.2 0.1 0 19.0 2.5 3 3.5 4 4.5 5 5.5 6 2.5 Supply Voltage, V IN (V) Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 4 3 3.5 4 4.5 5 Supply Voltage, V IN (V) 5.5 6 www.anpec.com.tw APW7136A/B/C Typical Operating Characteristics (Refer to Figure 1 in the section "Typical Application Circuits," VIN=3.6V, TA=25oC, 8WLEDs unless otherwise specified.) Switching Frequency vs. Supply Voltage Maximum Duty Cycle vs. Supply Voltage 100 1.1 Maximum Duty Cycle, DMAX (%) Switching Frequency, FSW (MHz) 1.2 1 0.9 0.8 0.7 0.6 0.5 0.4 2.5 90 80 70 60 50 40 3 3.5 4 4.5 5 5.5 6 2.5 Supply Voltage, VIN (V) Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 3 3.5 4 4.5 5 5.5 6 Supply Voltage, V IN (V) 5 www.anpec.com.tw APW7136A/B/C Operating Waveforms (Refer to the application circuit in the section "Typical Application Circuits", VIN=3.6V, TA=25oC, 8WLEDs unless otherwise specified.) Start-up Start-up VEN 1 VEN 1 VIN VIN VOUT 2 2 VOUT 3 3 IIN, 0.1A/Div IIN, 0.1A/Div 4 4 8WLEDs, L=22H, VIN=3.6V, ILED=20mA 6WLEDs, L=22H, VIN=3.6V, ILED=20mA CH1: VEN, 2V/Div, DC CH2: VIN, 2V/Div, DC CH3: VOUT, 10V/Div, DC CH4: IL, 0.1A/Div, DC Time: 1ms/Div CH1: VEN, 2V/Div, DC CH2: VIN, 2V/Div, DC CH3: VOUT, 10V/Div, DC CH4: IL, 0.1A/Div, DC Time: 1ms/Div Start-up 1 Open-LED Protection VEN VOUT,10V/Div VIN VOUT 2 1 3 IIN, 0.1A/Div APW7136C 4 4WLEDs, L=22H, VIN=3.6V, ILED=20mA CH1: VOUT, 10V/Div, DC Time: 20ms/Div CH1: VEN, 2V/Div, DC CH2: VIN, 2V/Div, DC CH3: VOUT, 10V/Div, DC CH4: IL, 0.1A/Div, DC Time: 1ms/Div Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 6 www.anpec.com.tw APW7136A/B/C Operating Waveforms (Refer to the application circuit in the section "Typical Application Circuits," VIN=3.6V, TA=25oC, 8WLEDs unless otherwise specified.) Normal Operating Waveform VLX, 20V/Div, DC 1 VOUT,50mV/Div,AC 2 IL, 0.1A/Div 3 8WLEDs, L=22H, VIN=3.6V, ILED=20mA CH1: VLX, 20V/Div, DC CH2: VOUT, 50V/Div, AC CH3: IL, 0.1A/Div, DC Time: 1s/Div Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 7 www.anpec.com.tw APW7136A/B/C Pin Description PIN FUNCTION NO. NAME 1 LX 2 GND 3 FB Feedback Pin. Reference voltage is 0.25V. Connect this pin to cathode of the lowest LED and resistor (R1). Calculate resistor value according to R1=0.25V/ILED. 4 EN Enable Control Input. Forcing this pin above 1.0V enables the device, or forcing this pin below 0.4V to shut it down. In shutdown, all functions are disabled to decrease the supply current below 1A. Do not leave this pin floating. 5 OVP Over-Voltage Protection Input Pin. OVP is connected to the output capacitor of the converter. 6 VIN Main Supply Pin. Must be closely decoupled to GND with a 4.7F or greater ceramic capacitor. Switch pin. Connect this pin to inductor/diode here. Power and signal ground pin. Block Diagram VIN EN OVP UVLO LX Gate Driver Control Logic OverTemperature Protection Slope Compensation Current Sense Amplifier Currentlimit Oscillator Error Amplifier ICMP FB GND COMP EAMP Softstart Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 8 VREF 0.25V www.anpec.com.tw APW7136A/B/C Typical Application Circuits VIN 22H C1 4.7F 6 VIN 2 OFF ON 4 LX 1 C1 4.7F C2 1F Up to 8 WLEDs GND OVP 5 4 R1 12 LX 1 6 VIN GND 100Hz~100kHz FB 3 VOUT 22H 2 APW7136 EN L1 VIN VOUT L1 C2 1F OVP 5 Up to 8 WLEDs APW7136 FB 3 EN R1 12 Duty=100%, ILED=20mA Duty=0%, LED off Figure 2. Brightness Control Using a PWM Signal Applies to EN Figure 1. Typical 8 WLEDs Application VIN VOUT L1 22H C1 4.7F 6 2 4 OFF ON VIN LX GND OVP APW7136 EN FB 1 C2 1F 5 3 R3 120k 3.3V VADJ PWM 0V brightness R4 10k control Duty=100%, LED off Duty=0%, ILED=20mA R2 = VREF Up to 8 WLEDs R2 10k R1 12 C3 0.1F ILED ,MAX R3 + VADJ,MIN - ILED ,MIN R3 - VADJ,MAX VADJ,MAX ILED ,MAX + VREF ILED ,MIN - VADJ,MIN ILED ,MIN - VREF ILED ,MAX R2 R2 V REF 1 + V ADJ ,MIN - R3 R3 R1 = ILED ,MAX Figure 3. Brightness Control Using a Filtered PWM Signal VIN L1 4.5V~6V 10H C1 10F 6 2 OFF ON 4 VIN GND VOUT LX OVP APW7136 EN FB 1 C2 10F 9 Strings total 5 3 R1 1.4 0603 Figure 4. Circuit for Driving 27 WLEDs Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 9 www.anpec.com.tw APW7136A/B/C Function Description Main Control Loop Over-Temperature Protection (OTP) The APW7136 is a constant frequency current-mode The over-temperature circuit limits the junction tempera- switching regulator. During normal operation, the internal N-channel power MOSFET is turned on each cycle ture of the APW7136. When the junction temperature exceeds 150 C, a thermal sensor turns off the power when the oscillator sets an internal RS latch and turned off when an internal comparator (ICMP) resets the latch. MOSFET, allowing the devices to cool. The thermal sensor allows the converters to start a soft-start process and The peak inductor current at which ICMP resets the RS latch is controlled by the voltage on the COMP node, which regulate the output voltage again after the junction temperature cools by 40C. The OTP is designed with a 40C is the output of the error amplifier (EAMP). An external resistive divider connected between VOUT and ground al- hysteresis to lower the average Junction Temperature (TJ) during continuous thermal overload conditions, in- lows the EAMP to receive an output feedback voltage VFB at FB pin. When the load current increases, it causes a creasing the lifetime of the device. Enable/Shutdown slightly decrease in VFB relative to the 0.25V reference, which in turn causes the COMP voltage to increase until Driving EN to the ground places the APW7136 in shut- the average inductor current matches the new load current. down mode. When in shutdown, the internal power MOSFET turns off, all internal circuitry shuts down and the quiescnet supply current reduces to 1A maximum. VIN Under-Voltage Lockout (UVLO) This pin also could be used as a digital input allowing brightness control using a PWM signal from 100Hz to The Under-Voltage Lockout (UVLO) circuit compares the input voltage at VIN with the UVLO threshold (2.2V, typical) 100kHz. The 0% duty cycle of PWM signal corresponds to zero LEDs current and 100% corresponds to full one. to ensure the input voltage is high enough for reliable operation. The 100mV (typical) hysteresis prevents sup- Open-LED Protection ply transients from causing a restart. Once the input voltage exceeds the UVLO rising threshold, start-up begins. In driving LED applications, the feedback voltage on FB pin falls down if one of the LEDs, in series, is failed. When the input voltage falls below the UVLO falling threshold, the controller turns off the converter. Meanwhile, the converter unceasingly boosts the output voltage like a open-loop operation. Therefore, an over- Soft-Start voltage protection (OVP), monitoring the output voltage via OVP pin, is integrated into the chip to prevent the LX The APW7136 has a built-in soft-start to control the Nchannel MOSFET current rise during start-up. During softstart, an internal ramp, connected to one of the inverting and the output voltages from exceeding their maximum voltage ratings. When the voltage on the OVP pin rises inputs, raises up to replace the output voltage of error amplifier until the ramp voltage reaches the VCOMP. above the OVP threshold, the converter stops switching and prevents the output voltage from rising. The converter Current-Limit Protection can work again when the OVP voltage falls below the falling of OVP voltage threshold. The APW7136 monitors the inductor current, flowing through the N-channel MOSFET, and limits the current peak at current-limit level to prevent loads and the APW7136 from damaging during overload conditions. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 10 www.anpec.com.tw APW7136A/B/C Application Information The peak inductor current is calculated as the following Input Capacitor Selection equation: The input capacitor (CIN) reduces the ripple of the input current drawn from the input supply and reduces noise IPEAK = IIN(MAX ) + injection into the IC. The reflected ripple voltage will be smaller when an input capacitor with larger capacitance is used. For reliable operation, it is recommended to VIN IIN select the capacitor with maximum voltage rating at least 1.2 times of the maximum input voltage. The capacitors IL LX N-FET CIN should be placed close to the VIN and the GND. 1 VIN (VOUT - VIN ) 2 VOUT L FSW IOUT D1 VOUT ESR ISW COUT Inductor Selection Selecting an inductor with low DC resistance reduces conduction losses and achieves high efficiency. The effi- IL ILIM ciency is moderated whilst using small chip inductor IPEAK which operates with higher inductor core losses. IL Therefore, it is necessary to take further consideration while choosing an adequate inductor. Mainly, the inductor value determines the inductor ripple current: larger IIN ISW inductor value results in smaller inductor ripple current and lower conduction losses of the converter. However, larger inductor value generates slower load transient response. A reasonable design rule is to set the ripple current, IL, to be 30% to 50% of the maximum average inductor current, IL(AVG). The inductor value can be ob- ID tained as below, V L IN VOUT IOUT 2 VOUT - VIN x x F I SW OUT (MAX ) IL IL (AVG ) Output Capacitor Selection The current-mode control scheme of the APW7136 allows the usage of tiny ceramic capacitors. The higher where VIN = input voltage capacitor value provides good load transients response. Ceramic capacitors with low ESR values have the lowest VOUT = output voltage FSW = switching frequency in MHz output voltage ripple and are recommended. If required, tantalum capacitors may be used as well. The output ripple IOUT = maximum output current in amp. = Efficiency is the sum of the voltages across the ESR and the ideal output capacitor. IL /IL(AVG) = inductor ripple current/average current (0.3 to 0.5, typical) To avoid the saturation of the inductor, the inductor should VOUT = VESR + VCOUT be rated at least for the maximum input current of the converter plus the inductor ripple current. The maximum VCOUT input current is calculated as below: IIN(MAX ) = V - VIN OUT V OUT FSW VESR IPEAK RESR IOUT (MAX ) VOUT where IPEAK is the peak inductor current. VIN Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 IOUT COUT 11 www.anpec.com.tw APW7136A/B/C Application Information (Cont.) Output Capacitor Selection (Cont.) Setting the LED Current For ceramic capacitor application, the output voltage ripple In figure 1, the converter regulates the voltage on FB pin, connected with the cathod of the lowest LED and the cur- is dominated by the VCOUT. When choosing the input and output ceramic capacitors, the X5R or X7R with their good temperature and voltage characteristics are recommended. rent-sense resistor R1, at 0.25V (typical). Therefore, the current (ILED), flowing via the LEDs and the R1, is calculated by the following equation: ILED = 0.25V/R1 Diode Selection To achieve the high efficiency, a Schottky diode must be used. The current rating of the diode must meet the peak current rating of the converter. Recommended Inductor Selection Designator Manufacturer L1 GOTREND 0.592 Saturation Current (A) 0.52 Dimensions L x W x H (mm3) 3.85 x 3.85 x 1.8 TC Code X5R X7R Rated Voltage (V) 6.3 50 Case Size 0603 0805 Part Number Inductance (H) Max DCR (ohm) GTSD32 22 Capacitance (F) 4.7 1.0 Recommended Capacitor Selection Part Number Designator Manufacturer C1 Murata GRM188R60J475KE19 C2 Murata GRM21BR71H105KA12 Recommended Diode Selection Designator Manufacturer D1 D1 Zowie Zowie Part Number MSCD106 MSCD104 Maximum Average Forward Maximum Repetitive Peak Rectified Current (A) Reverse Voltage (V) 1.0 60 1.0 40 Case Size 0805 0805 Layout Consideration For all switching power supplies, the layout is an important step in the design; especially at high peak currents and switching frequencies. If the layout is not carefully Via To OVP done, the regulator might show noise problems and duty cycle jitter. L1 To Anode of WLEDs 1. The input capacitor should be placed close to the VIN and the GND. Connecting the capacitor with VIN and VOUT D1 C1 LX VIN C2 GND pins by short and wide tracks without using any vias for filtering and minimizing the input voltage ripple. Via To VOUT VEN 2. The inductor should be placed as close as possible to the LX pin to minimize length of the copper tracks as C3 R4 R3 R1 From Cathod of WLEDs well as the noise coupling into other circuits. 3. Since the feedback pin and network is a high imped- R2 VADJ Via To GND Refer to Figure. 3 ance circuit, the feedback network should be routed away from the inductor. The feedback pin and feed- Optimized APW7136 Layout back network should be shielded with a ground plane or track to minimize noise coupling into this circuit. 4. A star ground connection or ground plane minimizes ground shifts and noise is recommended. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 12 www.anpec.com.tw APW7136A/B/C Package Information SOT-23-6 -T- D SEATING PLANE < 4 mils e E E1 SEE VIEW A b c 0.25 A L 0 GAUGE PLANE SEATING PLANE A1 A2 e1 VIEW A S Y M B O L SOT-23-6 MILLIMETERS MIN. INCHES MAX. A MAX. MIN. 0.057 1.45 0.00 0.15 0.000 0.006 A2 0.90 1.30 0.035 0.051 b 0.30 0.50 0.012 0.020 0.009 A1 c 0.08 0.22 0.003 D 2.70 3.10 0.106 0.122 E 2.60 3.00 0.102 0.118 1.80 0.055 0.071 E1 1.40 e 0.037 BSC 0.95 BSC e1 0.075 BSC 1.90 BSC L 0.30 0.60 0.012 0 0 8 0 0.024 8 Note : 1. Follow JEDEC TO-178 AB. 2. Dimension D and E1 do not include mold flash, protrusions or gate burrs. Mold flash, protrusion or gate burrs shall not exceed 10 mil per side. Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 13 www.anpec.com.tw APW7136A/B/C Carrier Tape & Reel Dimensions P0 P2 P1 A B0 W F E1 OD0 K0 A0 A OD1 B B T SECTION A-A SECTION B-B H A d T1 Application SOT-23-6 A H T1 C d D W E1 F 178.02.00 50 MIN. 8.4+2.00 -0.00 13.0+0.50 -0.20 1.5 MIN. 20.2 MIN. 8.00.30 1.750.10 3.50.05 P0 P1 P2 D0 D1 T A0 B0 K0 2.00.05 1.5+0.10 -0.00 1.0 MIN. 0.6+0.00 -0.40 3.200.20 3.100.20 1.500.20 4.00.10 4.00.10 (mm) Devices Per Unit Package Type SOT-23-6 Unit Tape & Reel Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 Quantity 3000 14 www.anpec.com.tw APW7136A/B/C Taping Direction Information SOT-23-6 USER DIRECTION OF FEED AAAX AAAX AAAX AAAX AAAX AAAX AAAX Classification Profile Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 15 www.anpec.com.tw APW7136A/B/C Classification Reflow Profiles Profile Feature Sn-Pb Eutectic Assembly Pb-Free Assembly 100 C 150 C 60-120 seconds 150 C 200 C 60-120 seconds 3 C/second max. 3 C/second max. 183 C 60-150 seconds 217 C 60-150 seconds See Classification Temp in table 1 See Classification Temp in table 2 Time (tP)** within 5C of the specified classification temperature (Tc) 20** seconds 30** seconds Average ramp-down rate (Tp to Tsmax) 6 C/second max. 6 C/second max. 6 minutes max. 8 minutes max. Preheat & Soak Temperature min (Tsmin) Temperature max (Tsmax) Time (Tsmin to Tsmax) (ts) Average ramp-up rate (Tsmax to TP) Liquidous temperature (TL) Time at liquidous (tL) Peak package body Temperature (Tp)* Time 25C to peak temperature * Tolerance for peak profile Temperature (Tp) is defined as a supplier minimum and a user maximum. ** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum. Table 1. SnPb Eutectic Process - Classification Temperatures (Tc) 3 Package Thickness <2.5 mm Volume mm <350 235 C Volume mm 350 220 C 2.5 mm 220 C 220 C 3 Table 2. Pb-free Process - Classification Temperatures (Tc) Package Thickness <1.6 mm 1.6 mm - 2.5 mm 2.5 mm Volume mm <350 260 C 260 C 250 C 3 Volume mm 350-2000 260 C 250 C 245 C 3 Volume mm >2000 260 C 245 C 245 C 3 Reliability Test Program Test item SOLDERABILITY HOLT PCT TCT HBM MM Latch-Up Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 Method JESD-22, B102 JESD-22, A108 JESD-22, A102 JESD-22, A104 MIL-STD-883-3015.7 JESD-22, A115 JESD 78 16 Description 5 Sec, 245C 1000 Hrs, Bias @ Tj=125C 168 Hrs, 100%RH, 2atm, 121C 500 Cycles, -65C~150C VHBM2KV VMM200V 10ms, 1tr100mA www.anpec.com.tw APW7136A/B/C Customer Service Anpec Electronics Corp. Head Office : No.6, Dusing 1st Road, SBIP, Hsin-Chu, Taiwan Tel : 886-3-5642000 Fax : 886-3-5642050 Taipei Branch : 2F, No. 11, Lane 218, Sec 2 Jhongsing Rd., Sindian City, Taipei County 23146, Taiwan Tel : 886-2-2910-3838 Fax : 886-2-2917-3838 Copyright ANPEC Electronics Corp. Rev. A.4 - Dec., 2010 17 www.anpec.com.tw