APW7000 1X/1.5X/2x Charge Pump White LED Driver General Description Features ±1.5% LED Current Matching The APW7000 is a high efficiency charge pump white High Efficiency Up to 90% Over Li-ion Battery LED driver; the device drives up to four white LEDs with regulated constant current for uniform intensity. The sup- Discharge Output Current Up to 30mA Per LED 1.5x, and 2x charge pump modes and automatically switches the charge pump modes depend on the input 2.7V to 5.5V Operating Voltage Allow to Turn On or Off a Combination of LEDs voltage to maintain the required power for high power efficiency. The APW7000 provides up to 30mA per LED, 1x/1.5x/2x Charge Pump Modes for a total of 120mA and allows several methods such as a PWM signal on the CTRL0 pin for LED dimming. Three Low Shutdown Current: 2µA Maximum Low Input Ripple and EMI control logic pins allow to disable or enable a combination of LEDs. The supply current is only 2mA in 2x mode, Internal Soft-Start Limits Inrush Current and the EN pin allows the device to enter shutdown mode with 2µA quiescent current. The APW7000 switches at Short Circuit Current Limit Thermal Shutdown Protection 1MHz frequency and only requires four 1µF ceramic capacitors and one resistor, and ensures low input current Output Over-Voltage Protection ripple and EMI. The APW7000 is available in a 16-pin QFN package. 16-Pin QFN Package Lead Free and Green Devices Available (RoHS Compliant) Cellular Phone White LED Back Light 16 15 PDA, Handheld Computer DSC EN 1 CTRL0 2 CTRL1 3 CTRL2 4 ILED4 14 13 12 GND 11 C1- Metal GND Pad (Bottom) 10 C1+ 9 ISET 5 6 7 8 C2+ Portable Device VIN • • • • ILED1 Applications ILED3 Pin Configuration ILED2 • • • • • • • • • • • • ply voltage ranges from 2.7V to 5.5V and it is optimized for a Li-ion battery application. The APW7000 operates in 1x, VOUT • • C2- QFN4x4-16 (Top View) 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.2 - Feb., 2009 1 www.anpec.com.tw APW7000 Ordering and Marking Information Package Code QA : QFN4x4-16 Operating Ambient Temperature Range I : -40 to 85 oC Handling Code TR : Tape & Reel Assembly Material G : Halogen and Lead Free Device APW7000 Assembly Material Handling Code Temperature Range Package Code APW7000 QA : APW7000 XXXXX XXXXX - Date Code 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-020C 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 VOUT VIN VC1+, VC1-, VC2+, VC2VILED1-4 VCTRL0/1/2, VEN VISET TJ (Note 1, 2) Parameter Rating Unit VOUT to GND -0.3 to +6 V VIN to GND -0.3 to +6 V C1+, C1-, C2+, C2- to GND -0.3 to +6 V ILED1-4 to GND -0.3 to +6 V CTRL0/1/2, EN to GND -0.3 to +6 V ISET to GND -0.3 to 2 V Maximum Junction Temperature TSTG Storage Temperature TSDR Maximum Lead Soldering Temperature, 10 Seconds +150 °C -65 ~ 150 °C 260 °C Note 1: Stresses beyond the absolute maximum rating may damage the device and operating in the absolute maximum rating conditions for extended periods may affect device reliability. Note 2: The maximum allowable power dissipation at any TA (ambient temperature) is calculated using: PD(max) = (TJ – TA) / θJA ;TJ=125°C. Exceeding the maximum allowable power dissipation will result in excessive die temperature. Thermal Characteristics Symbol R θJA Parameter Thermal Resistance-Junction to Ambient Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 QFN4x4-16 2 Typical Value Unit 40 °C/W www.anpec.com.tw APW7000 Recommended Operating Conditions Symbol VIN Parameter Unit 2.8 to 4.5 V VOUT Output Voltage 3 to 4 V ILED LED Current 5 to 30 mA IOUT TA Input Voltage Rating Output Current, VIN>3.5V, VF=3.1V, 1x mode 180 Output Current, 3.5V<VIN>3.1V, VF=3.1V, 1.5x mode 120 Output Current, 3.1V<VIN>2.8V, VF=3.1V, 2x mode 90 Ambient Temperature mA °C -40 to 85 Electrical Characteristics VIN = 2.85 to 5.5V, CIN = COUT = C1 = C2 = 1µF (ESR = 0.03Ω), ILED = 20mA, T A = -40°C to +85°C, unless otherwise noted. Typical values are at TA = +25°C. Symbol VIN VUVLO Parameter Test Conditions Input Voltage Under-voltage Lockout Threshold VIN falling Under-voltage Lockout Hysteresis IQ ILED-ERR IISET VILED-TH FOSC ROUT Quiescent Current Unit Min. Typ. Max. 2.7 - 5.5 2.2 2.4 2.6 V - 50 - mV V In 1.5x/2x mode - 2 4 mA No switching in 1x mode - 0.5 1 mA EN=0 - 0.1 2 µA LED Current Accuracy 5mA<ILED<30mA (Note 3) - ±2 ±8 % Current Matching 5mA<ILED<30mA (Note 4) - ±1.5 ±5 % 5 - 1000 µA 370 400 420 ISET Current ISET to LED Current Ratio IILED / (1.2V / REST) 5mA<ILED<30mA, TA = +25°C ILED Threshold Voltage VILED falling - 100 - mV 1.5x mode to 1x mode Transition Hysteresis VIN rising, VIN-VOUT - 300 - mV 2x mode to 1.5x mode Transition Hysteresis VIN rising, VOUT-VIN - 300 - mV MHz Switching Frequency Open Loop VOUT Resistance ISHORT Short Circuit Current Limit VOVP OVP Threshold 0.8 1 1.2 1x mode (VIN-VOUT) / IOUT - 1.6 3 1.5x mode (1.5xVIN-VOUT) / IOUT - 7 12 2x mode (2xVIN-VOUT) / IOUT - 16 28 VOUT < 1V - 40 - VIH Logic Pins High Threshold VIL Logic Pins Low Threshold IIH Logic Pins High Current VIH = VIN Logic Pins Low Current VIL = GND IIL APW7000 Ω mA 5 5.5 6 1.3 0.7 - - 0.6 0.3 V - - 1 µA V - - 1 µA Thermal Shutdown - 150 - °C Thermal Shutdown Hysteresis - 20 - °C Note 3: LED current accuracy is defined as: ± (ILED-MEASURED - ILED-SET) / ILED-SET Note 4: LED current matching is defined as: ± (ILED-MAX - ILED-MIN) / (ILED-MAX + ILED-MIN) Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 3 www.anpec.com.tw APW7000 Typical Operating Characteristics Efficiency vs. Input Voltage 100 90 90 80 80 Efficiency (%) Efficiency (%) Efficiency vs. Input Voltage 100 70 60 4 LEDs at 20mA VF=3.1V 50 70 60 50 40 40 30 30 20 4 LEDs at 15mA VF=3.1V 20 2.5 3 3.5 4 4.5 2.5 3 Input Voltage (V) 100 90 90 80 80 Efficiency (%) Efficiency (%) Efficiency vs. Input Voltage 100 70 60 4 LEDs at 15mA VF=3.3V 50 Efficiency vs. Input Voltage 60 4 LEDs at 20mA VF=3.3V 50 40 30 30 20 2.5 3 3.5 4 4.5 2.5 3 Input Voltage (V) 3.5 4 Input Voltage (V) 4.5 Input Current vs. Input Voltage Input Current vs. Input Voltage 200 260 240 180 4 LEDs at 30mA Input Current (mA) 220 Input Current (mA) 4.5 70 40 20 3.5 4 Input Voltage (V) 200 180 160 140 4 LEDs at 20mA 160 140 120 100 80 120 100 60 2.5 3 3.5 4 4.5 5 2.5 Input Voltage (V) Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 3 3.5 4 4.5 5 Input Voltage (V) 4 www.anpec.com.tw APW7000 Typical Operating Characteristics (Cont.) LED Current vs. Input Voltage LED Current vs. Input Voltage 32 21 31 LED Current (mA) LED Current (mA) 20 19 4 LEDs at 20mA 18 30 29 4 LEDs at 30mA 28 27 17 26 16 25 2.5 3 3.5 4 4.5 5 5.5 2.5 3 3.5 Logic Threshold Voltage vs. Input Voltage 4.5 5 5.5 Switching Frequency vs. Input Voltage 1200 1.2 in 2x mode ILED=20mA 1150 1.1 Switching Frequency (kHz) Logic Threshold Voltage(V) 4 Input Voltage (V) Input Voltage (V) high threshold 1 0.9 low threshold 0.8 1100 1050 1000 950 900 850 800 0.7 2.5 1200 3 3.5 4 4.5 Input Voltage (V) 2.5 5.5 3 3.5 4 4.5 Input Voltage (V) Switching Frequency vs. Temperature LED Current vs. Temperature 21 4 LEDs at 20mA VIN=4V in 2x mode VIN=4V 1100 1000 LED Current (mA) Switching Frequency (kHz) 5 900 800 700 20 19 18 600 500 17 -40 -20 0 20 40 60 -40 80 100 120 140 Temperature (°C) Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 -20 0 20 40 60 80 100 120 140 Temperature (°C) 5 www.anpec.com.tw APW7000 Typical Operating Characteristics (Cont.) LED Current vs. Temperature LED Current vs. Temperature 22 22 4 LEDs at 20mA VIN=2.7V 4 LEDs at 20mA VIN=3.3V 21 LED Current (mA) LED Current (mA) 21 20 19 20 19 18 18 17 17 -40 -20 0 20 40 60 80 -40 100 120 140 -20 0 40 60 80 100 120 140 Temperature (°C) Temperature (°C) Quiescent Current vs. Temperature Quiescent Current vs. Input Voltage 400 3 2.75 in 1x mode VIN=4V 4 LEDs at 20mA VF=3.3V 2.5 350 Quiescent Current (mA) Quiescent Current (mA) 20 300 250 2.25 2 1.75 1.5 1.25 1 0.75 0.5 0.25 0 200 -40 -20 0 20 40 60 80 2.5 2.7 2.9 3.1 3.3 3.5 3.7 3.9 4.1 4.3 4.5 100 120 140 Temperature (°C) Input Voltage(V) StartUp in 1x Mode IIN (100mA/div) StartUp in 1.5x Mode 4 LEDs at 20mA VF=3.1V, VIN=4V IIN (100mA/div) 4 LEDs at 20mA VF=3.1V, VIN=3.3V VOUT (2V/div) V OUT (2V/div) EN (5V/div) EN (5V/div) ILED (10mA/div) ILED (10mA/div) TIME (0.1ms/div) TIME (0.1ms/div) Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 6 www.anpec.com.tw APW7000 Typical Operating Characteristics (Cont.) StartUp in 2x Mode Dimming in 1x Mode ILED (10mA/div) 4 LEDs at 20mA VF=3.1V, VIN=2.7V IIN (100mA/div) V OUT (2V/div) VOUT (1V/div) EN (5V/div) 4 LEDs at 20mA VF=3.1V, VIN=4V f=200Hz CTRL0 (2V/div) ILED (10mA/div) TIME (0.1ms/div) TIME (2ms/div) Dimming in 1.5x Mode Dimming in 2x Mode ILED (10mA/div) ILED (10mA/div) V OUT (1V/div) VOUT (1V/div) CTRL0 (1V/div) 4 LEDs at 20mA, VF=3.1V VIN=3.3V, f=200Hz 4 LEDs at 20mA, VF=3.1V, VIN=2.7V, f=200Hz CTRL0 (1V/div) TIME (2ms/div) TIME (2ms/div) OVP Even with LED Open Circuit Line Transient Response in 1x to 1.5x Mode VIN (1V/div) ILED (10mA/div) 4 LEDs at 20mA, VF=3.1V VIN=3.2V to 3.8V V OUT (1V/div) VOUT (1V/div) V IN (1V/div) 4 LEDs at 20mA VF=3.1V, VIN=4V LED1 is open ILED (20mA/div) TIME (0.1ms/div) TIME (0.2ms/div) Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 7 www.anpec.com.tw APW7000 Typical Operating Characteristics (Cont.) Line Transient Response in 1.5x to 2x Mode VIN (1V/div) 4 LEDs at 20mA, VF=3.1V VIN=2.8V to 3.4V VOUT (1V/div) ILED (20mA/div) TIME (0.1ms/div) Pin Description PIN FUNCTION NO. NAME 1 EN 2 CTRL0 LED On/Off Control Pin. Allow disabling or enabling a combination of LEDs. 3 CTRL1 LED On/Off Control Pin. Allow disabling or enabling a combination of LEDs. 4 CTRL2 LED On/Off Control Pin. Allow disabling or enabling a combination of LEDs. Enable Input Pin. The EN pin is an active high Control. Pull EN pin above 1.3V to enable the device; pull EN pin below 0.3V to disable the device. 5 ISET LED Current Set Input. Connect a resistor from ISET to GND to set the LED current. VISET is typically 1.2V. 6 VOUT Output Voltage Pin. Connect VOUT to the LED anode. Connect a 1µF capacitor from VOUT to GND. 7 VIN Supply Voltage Input Pin. Connect a 1µF capacitor from VIN to GND. 8 C2+ Bucket Capacitor1 Positive Terminal. Connect a 1µF capacitor from C2+ to C2-. 9 C2- Bucket Capacitor1 Negative Terminal. Connect a 1µF capacitor from C2+ to C2-. 10 C1+ Bucket Capacitor1 Positive Terminal. Connect a 1µF capacitor from C1+ to C1-. Bucket Capacitor1 Negative Terminal. Connect a 1µF capacitor from C1+ to C1-. 11 C1- 12 GND Device Ground Pin. 13 ILED4 LEDs Cathode Connection. The LED current flows from VOUT through LED into ILED_ pin. The charge pump regulates the lowest VILED to 180mV. Connect ILED_ pin to VOUT if the LED is not used. 14 ILED3 LEDs Cathode Connection. The LED current flows from VOUT through LED into ILED_ pin. The charge pump regulates the lowest VILED to 180mV. Connect ILED_ pin to VOUT if the LED is not used. 15 ILED2 LEDs Cathode Connection. The LED current flows from VOUT through LED into ILED_ pin. The charge pump regulates the lowest VILED to 180mV. Connect ILED_ pin to VOUT if the LED is not used. 16 ILED1 LEDs Cathode Connection. The LED current flows from VOUT through LED into ILED_ pin. The charge pump regulates the lowest VILED to 180mV. Connect ILED_ pin to VOUT if the LED is not used. Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 8 www.anpec.com.tw APW7000 Block Diagram C1+ C2- VOUT 1x/1.5x/2x MODE CHARGE PUMP AND GATE CONTROL LOGIC VIN EN C2+ C1- POR & SOFT-START CURRENT LIMIT CTRL1 LED ON/OFF CONTROL - + - + - 1MHz OSCILLATOR - + + 0.18V CTRL0 0.1V 1.2V MODE SELECT AND MIN ILED SELECT CTRL2 ILED1 ILED2 CONTROLLED CURRENT MIRROR ILED3 ILED4 + - Error Amp 1.2V + + + + - - - - ISET GND Typical Application Circuit COUT 1µF Digital Inputs 16 15 14 13 ILED1 ILED2 ILED3 ILED4 EN GND 12 1 2 3 4 CTRL0 C1- 11 APW7000 CTRL1 C1+ 10 CTRL2 ISET VOUT VIN 5 6 7 C2C2+ 8 9 C2 1µF C1 1µF Battery RSET CIN 1µF Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 9 www.anpec.com.tw APW7000 Function Description where VF is the forward voltage of LED Soft-Start IOUT is the output current ROUT1X is the output impedance in 1x mode = 1.6Ω The APW7000 provides the soft-start function to limit the inrush current during startup. When the input voltage is supplied to the device and exceeds the UVLO voltage, ROUT1.5X is the output impedance in 1.5x mode = 7Ω the output capacitor is charged directly from input with a limited current source. Approximate 100µs after the out- Control Logic Pins The APW7000 provides three logic input pins to enable put voltage approaches the input voltage, the device starts to provide the programmed LED current and determines or disable a combination of LEDs. Table1 shows the truth table of the logic pins. If the LED channels are not used, which of 1x, and 1.5x, or 2x mode is required. When the programmed LED current can be reached with 1x mode, connecting the ILED pins to VOUT to turn off the respective LED channels. the soft-start is completed and the device operates in 1x mode. When the programmed LED current cannot be Control Logic Pin LED Status CTRL2 CTRL1 CTRL0 LED4 LED3 LED2 LED1 0 0 0 OFF OFF OFF ON 0 0 1 OFF OFF ON OFF 0 1 0 OFF ON OFF OFF 0 1 1 ON OFF OFF OFF 1 0 0 OFF OFF ON ON 1 0 1 OFF ON ON ON 1 1 0 ON ON ON ON 1 1 1 OFF OFF OFF OFF reached, the charge pump goes into 1.5x mode. If the 1.5x mode charge pump cannot suffice for the LED current need, the charge pump will switch to 2x mode. Mode Transition The APW7000 operates in 1x, 1.5x and 2x charge pump modes and automatically switches the charge pump modes depend on the input voltage to main tain the required power for high power efficiency. If the APW7000 Table1. The Truth Table of Control Logic Pins operates in 1x mode, the VOUT is pulled up to VIN. When VIN decreases, the VILED will decease to maintain the LED Current Setting regulated LED current. Until VILED is below 100mV, the device will switch to 1.5x mode. In 1.5x mode, the VILED Connect a resistor from ISET pin to GND to set the LED current. The ISET voltage is typically 1.2V, and the LED current is typically 400 times the current through the ISET is regulated to 0.18V, and the output voltage is VF+0.18V. If VIN continues to decrease until VILED is below 100mV resistor. The LED current is given by: again, the device will switch to 2x mode. When the VIN rises and reaches by approximately VOUT-300mV, the RSET = 400 × 1.2V ILED APW7000 switches back to 1.5x mode. If the VIN continues to rise and reaches by approximately VOUT+300mV, The APW7000 provides up to 30mA of LED current per the APW7000 switches back to 1x mode. The 2x charge pump is enough to suffice the White LED for a Li-ion LED and the device has a max current matching of ±5% between any two LED currents and a max current accu- battery application. The APW7000 ensures that in the 1x mode for as long as possible to increase the efficiency racy of ±8%. If high accuracy is required, using a 1% precision surface mount resistor for the need. and extend the operating range by using the 2x mode. The transition voltages from 1x to 1.5x and 1.5x to 2x are ILED (mA) 5 10 15 20 30 given by: VTRANS1X = VF + 0.1V + (IOUT x ROUT1X) VTRANS1.5X = [VF + 0.1V + (IOUT x ROUT1.5X)] / 1.5 RSET (kΩ) 92 47 32 24 16.5 Table2. RSET Value Selection Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 10 www.anpec.com.tw APW7000 Function Description (Cont.) LED Current Setting (Cont.) 400 350 300 RSET (Ohm) 250 200 150 100 50 0 0 5 10 15 20 25 30 ILED (mA) Figure 1. RSET Value vs. LED Current Shutdown/Enable Pull the EN above 1.3V to enable the device and pull EN pin below 0.3V to disable the device. In shutdown mode, all internal control circuits are turned off and the quiescent current is below 2µA. When the device exits shutdown mode, the output has soft-start function as the input voltage startup. Over-Voltage Protection If any of LEDs is failed or unused LED channel is not connected to the VOUT, the charge pump mode will go into 2x mode and the output voltage will be pumped to 2 times the input voltage. If the output voltage is over 5.5V, the over-voltage protection circuit will limit the output voltage to approximately 5.5V. Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 11 www.anpec.com.tw APW7000 Application Information 20 For lower input and output voltage ripples, both input and 18 output capacitors should be larger values and lower ESR capacitors. However, the larger output capacitor values 16 LED Current (mA) Capacitor Selection will increase the soft-start time. The lower charge pump flying capacitors values and ESR improve the efficiency, but lower capacitor values may limit the LED’s currents at low input voltage. LED=20mA VIN=2.7V, 2x mode 14 f=100Hz 12 10 8 f=10kHz 6 It is recommended that the low ESR and low variation over temperature, such as the ceramic capacitors with 4 X7R or X5R and the value is 1µF for the input capacitor, output capacitor, and the charge pump flying capacitors. 0 f=40kHz 2 f=50kHz 0 10 20 30 40 50 60 70 80 90 100 Dimming Duty (%) Brightness Control Figure 3. PWM Dimming Frequency vs. LED Current 1. PWM dimming using CTRL0, CTRL1, CTRL2 The first method for dimming the LEDs is to apply a PWM signal into the CTRL0, CTRL1, and CTRL2 pins. Figure2 2. Analog dimming with analog voltage The second method for dimming the LEDs is to apply a shows the application circuit. The average LED current is proportional to the PWM signal duty cycle. Note that the voltage through a resistor into the ISET pin. The variation of LED current is proportional to the variation of the ana- frequency of PWM signal will affect the minimum dimming duty. Figure3 shows the LED current vs. dimming log voltage. If the resistor values are chosen correctly, the analog control voltage varies the output current from 0mA frequency and dimming duty, the recommend dimming frequency is below 10kHz. The average LED current is to full LED current. Figure 4 shows the application circuit. See the table2 and choose the required maximum LED current and the corresponsive RSET value, using the be- calculated by the following equation: ILED( avg) = low equation to calculate the values of R1 and R2, note that the VADJ will need to be greater than 1.2V. toff × ILED(max) ton + toff VADJ ( VADJ − VISET ) VADJ = + R1 R2 R SET Where: ILED(max) is programmed LED current by ISET pin toff is the off time of the PWM signal Where: VISET = 1.2V VADJ = the analog voltage for dimming the LEDs RSET = the equivalent RSET resistance (see table 2). ton is the on time of the PWM signal VIN APW7000 ISET APW7000 OFF ON PWM 1 2 3 4 R2 EN 5 VADJ CTRL0 R1 CTRL1 CTRL2 Figure 4. Analog Voltage Dimming Application Circuit Figure 2. PWM Dimming Application Circuit Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 12 www.anpec.com.tw APW7000 Application Information (Cont.) Brightness Control (Cont.) Layout Consideration 3. Digital dimming with external NMOS transistors The third method for dimming the LEDs is to change the The APW7000 is a high frequency charge pump for white LED driver and requires some care when laying out the equivalent resistance for RSET with the external NMOS transistors. The equivalent resistance is the parallel printed circuit board. The metal GND pad of the bottom of the package must be soldered to the PCB and connected combinations of the R1, R2, R3, and R4. R4 is always connected and selected for the minimum LED current. to the GND plane on the backside through several thermal vias. Place the CIN, COUT, C1, and C2 as close to IC Figure 5 shows the application circuit. as possible for reducing the switching noise. APW7000 ISET 5 R1 R2 R3 R4 Figure 5. Digital Dimming Application Circuit 4. PWM dimming with EN pin Another method for dimming the LEDs is to apply a PWM signal into the EN pin. The average LED current is proportional to the PWM signal duty cycle. Note that the frequency of PWM signal will affect the minimum dimming duty. The recommend dimming frequency is between 100Hz and 1kHz. The average LED current is calculated by the following equation: ILED(avg ) = ton × ILED(max) ton + toff Where: ILED(max) is programmed LED current by ISET pin toff is the off time of the PWM signal ton is the on time of the PWM signal Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 13 www.anpec.com.tw APW7000 Package Information QFN4x4-16 D b E A Pin 1 A1 D2 A3 L K E2 Pin 1 Corner e S Y M B O L QFN4x4-16 MILLIMETERS INCHES MIN. MAX. MIN. MAX. A 0.80 1.00 0.031 0.039 A1 0.00 0.05 0.000 0.002 0.35 0.010 0.014 0.161 A3 0.20 REF 0.008 REF b 0.25 D 3.90 4.10 0.154 D2 2.10 2.50 0.083 0.098 0.161 0.098 E 3.90 4.10 0.154 E2 2.10 2.50 0.083 0.50 0.012 e 0.65 BSC L 0.30 K 0.20 Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 0.026 BSC 0.020 0.008 14 www.anpec.com.tw APW7000 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 QFN4x4-16 A H T1 C d D W E1 F 330.0±2.00 50 MIN. 12.4+2.00 -0.00 13.0+0.50 -0.20 1.5 MIN. 20.2 MIN. 12.0±0.30 1.75±0.10 5.5±0.05 P0 P1 P2 D0 D1 T A0 B0 K0 2.0±0.05 1.5+0.10 -0.00 1.5 MIN. 0.6+0.00 -0.40 4.30±0.20 4.30±0.20 1.30±0.20 4.0±0.10 8.0±0.10 (mm) Devices Per Unit Package Type Unit Quantity QFN4x4-16 Tape & Reel 3000 Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 15 www.anpec.com.tw APW7000 Taping Direction Information QFN4x4-16 USER DIRECTION OF FEED Classification Profile Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 16 www.anpec.com.tw APW7000 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 5°C 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 25°C 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) Package Thickness <2.5 mm ≥2.5 mm Volume mm <350 235 °C 220 °C 3 Volume mm ≥350 220 °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 ESD Latch-Up Copyright ANPEC Electronics Corp. Rev. A.2 - Feb., 2009 Method JESD-22, B102 JESD-22, A108 JESD-22, A102 JESD-22, A104 MIL-STD-883-3015.7 JESD 78 17 Description 5 Sec, 245°C 1000 Hrs, Bias @ 125°C 168 Hrs, 100%RH, 2atm, 121°C 500 Cycles, -65°C~150°C VHBM≧2KV, VMM≧200V 10ms, 1tr≧100mA www.anpec.com.tw APW7000 Customer Service Anpec Electronics Corp. Head Office : No.6, Dusing 1st Road, SBIP, Hsin-Chu, Taiwan, R.O.C. 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.2 - Feb., 2009 18 www.anpec.com.tw