Single Port, VDSL2 Differential Line Driver ISL1550 Features The ISL1550 is a dual operational amplifier intended to be used as a differential line driver. ISL1550’s high bandwidth and low distortion performance enables the support of VDSL2 8b, 17a and 30a modem applications. • 20dBm output power capability This device features a high current drive capability of ±750mA required to drive large voltage peaks into heavy loads. In Central Office (CO) applications, the driver achieves a typical Missing Band Power Ratio (MBPR) of -66dBc in VDSL2 8b upstream (US) 1 band and MBPR’s of -61dBc and -60dBc in VDSL2 17a US1 and US2 respectively. The ISL1550 has two bias current control pins (C0, C1) to allow for four power settings (disable, low, medium, high). The VDSL modem DSP configures the line driver’s power setting based on the desired mode of operation. The line driver operates on a nominal single +12V or a dual ±6V supplies with bias current in active mode between 15mA to 32mA, depending on its power setting. The ISL1550’s gain setting is configurable at the application level by setting the Rf and Rg resistor values. The surge current handling of ISL1550 has been enhanced to allow ITU-T K.20 and GR1089 compliance with minimal external surge protection circuitry. The ISL1550 is available in the thermally-enhanced, Pb-free RoHS compliant 16 Ld QFN package and is specified for operation over the full -40°C to +85°C temperature range. SUPPLY DECOUPLING NOT SHOWN + 500 100n • K.20, GR-1089 Surge Robustness Validated Applications • VDSL2 Profiles: 8MHz, 17MHz, and 30MHz Related Literature • AN1325 “Choosing and Using Bypass Capacitors” TABLE 1. ALTERNATE SOLUTIONS PART # NOMINAL ±VCC (V) BANDWIDTH (MHz) APPLICATIONS ISL1557 ±6,+12 200 VDSL2 ISL1539A ±12,+24 240 VDSL2 -80 1:2.5 Rg 1.5k 1k 2.2n 1k Rf 750 ½ ISL1550 -100 -110 -120 -130 2.2 + FIGURE 1. TYPICAL APPLICATION CIRCUIT 1 -90 100 NOMINAL LINE -6V March 16, 2012 FN6795.0 • Supply range: ±4.0V to ±6.6V, +8.0V to +13.2V • Thermal shutdown -70 2.2 Rf 750 500 • -61dBc US1, -60dBc US2 avg. MBPR 17a -60 ½ ISL1550 - • -89dBc typical driver output distortion at full output at 200kHz, 12VP-P differential -50 AFE • 18VP-P differential output drive into 20Ω -40 +6V 100n • Drives up to ±750mA from a +12V supply -140 8.40M 8.90M 9.40M 9.90M 10.4M 10.9M 11.4M 11.9M FREQUENCY (Hz) FIGURE 2. US2 MBPR 17a VDSL2 PERFORMANCE CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. 2012. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. ISL1550 Connection Diagram + + +6V INA + + 25 OUTA ½ ISL1550 - 1.5k INA2VP-P 750 10VP-P 5VP-P into 50 INB- 1.5k ½ ISL1550 + OUTB BIAS CURRENT CONTROL INB + 25 C0 C1 GND + + Av = (1.5k / (750/2)) + 1 = 5V/V -6V FIGURE 3. TYPICAL DIFFERENTIAL AMPLIFIER I/O Pin Configuration OUTA NC VS+ OUTB ISL1550 (16 LD QFN) TOP VIEW 16 15 14 13 NC 1 12 NC INA- 2 11 INBVS-* INA+ 3 10 INB+ 5 6 7 8 NC VS- C0 9 NC GND 4 C1 *THERMAL PAD CONNECTS TO MOST NEGATIVE SUPPLY 2 FN6795.0 March 16, 2012 ISL1550 Pin Descriptions PIN NUMBER PIN NAME 1 NC No Connect FUNCTION 2 INA- Amplifier A Inverting Input 3 INA+ Amplifier A Non-Inverting Input 4 GND 5 NC No Connect 6 NC No Connect 7 VS- Negative Supply Voltage 8 C0 Digital Control Pin 9 C1 Digital Control Pin 10 INB+ Amplifier B Non-Inverting Input 11 INB- Amplifier B Inverting Input Ground 12 NC 13 OUTB No Connect 14 VS+ Positive Supply Voltage 15 NC No Connect 16 OUTA Amplifier B Output Amplifier A Output Ordering Information PART NUMBER (Notes 2, 3) PART MARKING TEMP RANGE (°C) PACKAGE (Pb-free) PKG. DWG. # ISL1550IRZ 155 0IRZ -40 to +85 16 Ld QFN L16.4x4H ISL1550IRZ-T7 (Note 1) 155 0IRZ -40 to +85 16 Ld QFN L16.4x4H ISL1550IRZ-T13 (Note 1) 155 0IRZ -40 to +85 16 Ld QFN L16.4x4H ISL1550IRZ-EVALZ Evaluation Board NOTES: 1. Please refer to TB347 for details on reel specifications. 2. These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL1550. For more information on MSL please see tech brief TB363. 3 FN6795.0 March 16, 2012 ISL1550 Absolute Maximum Ratings (TA = +25°C) Thermal Information VS+ Voltage to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +13.2V Driver VIN+ Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GND to +VS C0, C1 Voltage to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +VS Current into any Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8mA Continuous Output Current for Long Term Reliability. . . . . . . . . . . . . . . . .50mA ESD Rating Human Body Model (Tested per JESD22-A114F). . . . . . . . . . . . . . . . . . 4kV Machine Model (Tested per JESD22-A115C) . . . . . . . . . . . . . . . . . . 300V Charge Device Model (Tested per JESD22-C101E). . . . . . . . . . . . . .1.5kV Thermal Resistance (Typical) θJA (°C/W) θJC (°C/W) 16 Ld QFN Package (Notes 4, 5) . . . . . . . . 53 16.5 Maximum Junction Temperature (Plastic Package) . . . . . . . . . . . .+150°C Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-40°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Operating Conditions Ambient Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . .-40°C to +150°C CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 4. θJA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 5. For θJC, the “case temp” location is the center of the exposed metal pad on the package underside. Electrical Specifications PARAMETER VS = ±6V, see Figure 1, TA = +25°C, unless otherwise specified. DESCRIPTION CONDITIONS MIN (Note 6) TYP MAX (Note 6) UNIT AC PERFORMANCE BW -3dB Bandwidth See Figure 1 105 MHz THD Total Harmonic Distortion, Differential f = 200kHz, VO = 12VP-P output, RL = 20Ω -89 dBc f = 4MHz, VO = 12VP-P output, RL = 100Ω -67 dBc f = 10MHz, VO = 12VP-P output, RL = 100Ω -61 dBc 2400 V/µs SR Slew Rate (20% to 80%) VOUT from -6V to +6V (differential) 1500 DC PERFORMANCE VOS_CM Input Offset Voltage Common Mode -45 +45 mV VOS_DM Input Offset Voltage Differential Mode -7.5 +7.5 mV INPUT CHARACTERISTICS IB+ Non-Inverting Input Bias Current -7.0 -3.0 +7.0 µA IB- DM Inverting Input Bias Current Differential Mode -45 ±7 +45 µA eO Differential Output Noise See Figure 1 [at transformer input] 45 nV√ Hz ±5.0 V ±4.5 V OUTPUT CHARACTERISTICS VOUT Loaded Output Swing (single-ended) VS = ±6V, RL DIFF = 100Ω ±4.7 VS = ±6V, RL DIFF = 20Ω SUPPLY +VS Supply Voltage Single supply (-VS = GND) 8.0 12 13.2 V IS+ (Full Bias) Positive Supply Current All outputs at 0V, C0 = C1 = 0V 27 32 37 mA IS+ (Medium Bias) Positive Supply Current All outputs at 0V, C0 = 5V, C1 = 0V 19 23 26 mA IS+ (Low Bias) Positive Supply Current All outputs at 0V, C0 = 0V, C1 = 5V 12 15 18 mA IS+ (Power down) Positive Supply Current All outputs at 0V, C0 = C1 = 5V 1.3 1.6 2.5 mA IINH, C0 or C1 C0, C1 Input Current, High C0, C1 = 6V 100 165 224 µA IINL, C0 or C1 C0, C1 Input Current, Low C0, C1 = 0V -1.5 -1.0 +1.5 µA VINH, C0 or C1 C0, C1 Input Voltage, High VINL, C0 or C1 C0, C1 Input Voltage, Low 2.0 V 0.8 V NOTE: 6. Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design. 4 FN6795.0 March 16, 2012 ISL1550 Typical Performance Curves noted. VCC = ±6V, See Figure 1, TA = +25°C, C0 = C1 = 0V (Full power), Unless otherwise 6 6 3 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) 3 25Ω 0 50Ω -3 -6 16Ω -9 -12 0 33pF -3 -6 22pF -9 1M 10M 100M -12 1G 1M 10M 1G FIGURE 5. SMALL SIGNAL FREQUENCY RESPONSE vs CLOAD 6 6 3 3 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) FIGURE 4. SMALL SIGNAL FREQUENCY RESPONSE vs RLOAD 0 -3 VCC = 12V TO 8V -6 -9 1VP-P 0 5VP-P -3 -6 2VP-P -9 1M 10M 100M FREQUENCY (Hz) -12 1G FIGURE 6. SMALL SIGNAL BANDWIDTH vs SUPPLY VOLTAGE -50 THD -60 -70 -80 -90 -100 1M 10M 100M FREQUENCY (Hz) 1G -40 5VOP-P-DIFF 100Ω RLOAD HARMONIC DISTORTION (dBc) -40 1M FIGURE 7. LARGE SIGNAL FREQUENCY RESPONSE -30 HARMONIC DISTORTION (dBc) 100M FREQUENCY (Hz) FREQUENCY (Hz) -12 18pF 3rd HD 2nd HD 10M FREQUENCY (Hz) FIGURE 8. HARMONIC DISTORTION vs FREQUENCY 5 100M 100Ω RLOAD -45 -50 -55 -60 THD -65 -70 -75 2nd HD -80 -85 -90 3rd HD 1 10 VOP-P-LOAD (V) FIGURE 9. 4MHz HARMONIC DISTORTION vs OUTPUT VOLTAGE FN6795.0 March 16, 2012 ISL1550 Typical Performance Curves noted. (Continued) VCC = ±6V, See Figure 1, TA = +25°C, C0 = C1 = 0V (Full power), Unless otherwise -45 -40 100Ω RLOAD HARMONIC DISTORTION (dBc) HARMONIC DISTORTION (dBc) -40 -50 -55 THD -60 -65 -70 -75 2nd HD -80 3rd HD -85 -90 1 -50 THD -55 -60 -65 -70 2nd HD 3rd HD -75 -80 -85 -90 10 100Ω RLOAD -45 1 10 VOP-P-LOAD (V) VOP-P-LOAD (V) FIGURE 11. 20MHz HARMONIC DISTORTION vs OUTPUT VOLTAGE FIGURE 10. 10MHz HARMONIC DISTORTION vs OUTPUT VOLTAGE -20 -30 -30 -40 -50 -60 -60 MTPR (dBm) -50 -70 -80 -90 -80 -90 -100 -110 -110 -120 -120 -130 -130 -140 3.78M 3.98M 4.18M 4.38M 4.58M 4.78M 4.98M -140 5.18M PAR = 6.3/V 14.5dBm LINE POWER, RL = 25Ω, AVG. MBPR = -60dBc -70 -100 8.48M 8.98M FREQUENCY (Hz) 9.48M 9.98M 10.5M FREQUENCY (Hz) 11M 11.5M FIGURE 13. MBPR 17a US2 FIGURE 12. MBPR 8b US1 100 LOW POWER nV/√Hz MTPR (dBm) -40 -20 PAR = 5.32/V 18dBm LINE POWER, RL = 25Ω, AVG. MBPR = -66dBc MEDIUM POWER FULL POWER Fig. 1 at transformer inputs 10 10k 100k 1M 10M 100M FREQUENCY (Hz) FIGURE 14. DIFFERENTIAL OUTPUT NOISE 6 FN6795.0 March 16, 2012 ISL1550 Typical Performance Curves otherwise noted. VCC = ±6V, See Figure 1, TA = +25°C, C0 = 3.3V, C1 = 0V (Medium power), Unless 6 3 3 NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) 6 25Ω 0 50Ω -3 -6 16Ω -9 -12 1M 10M 100M 0 -6 22pF -9 -12 1M 1G 10M FREQUENCY (Hz) 6 -30 3 -40 1VP-P 0 5VP-P -3 -6 2VP-P -9 -12 1M 10M 100M 1G -50 THD -60 -70 3rd HD -80 2nd HD -90 -100 1M 10M 100M FREQUENCY (Hz) FIGURE 18. HARMONIC DISTORTION vs FREQUENCY FIGURE 17. LARGE SIGNAL FREQUENCY RESPONSE -40 -40 100Ω RLOAD -45 -50 -55 -60 THD -65 -70 -75 2nd HD -80 -85 3rd HD 1 10 VOP-P-LOAD (V) FIGURE 19. 4MHz HARMONIC DISTORTION vs OUTPUT VOLTAGE 7 HARMONIC DISTORTION (dBc) HARMONIC DISTORTION (dBc) 1G 5VOP-P-DIFF 100Ω RLOAD FREQUENCY (Hz) -90 100M FREQUENCY (Hz) FIGURE 16. SMALL SIGNAL FREQUENCY RESPONSE vs CLOAD HARMONIC DISTORTION (dBc) NORMALIZED GAIN (dB) FIGURE 15. SMALL SIGNAL FREQUENCY RESPONSE vs RLOAD 18pF 33pF -3 100Ω RLOAD -45 -50 -55 THD -60 -65 -70 2nd HD -75 -80 3rd HD -85 -90 1 VOP-P-LOAD (V) 10 FIGURE 20. 10MHz HARMONIC DISTORTION vs OUTPUT VOLTAGE FN6795.0 March 16, 2012 ISL1550 Typical Performance Curves otherwise noted. VCC = ±6V, See Figure 1, TA = +25°C, C0 = 0V, C1 = 3.3V (Low power), unless 6 3 3 25Ω NORMALIZED GAIN (dB) NORMALIZED GAIN (dB) 6 0 50Ω -3 -6 16Ω -9 -12 1M 10M 100M 0 33pF -3 -6 22pF -9 -12 1G 1M 10M FREQUENCY (Hz) 3 -40 HARMONIC DISTORTION (dBc) NORMALIZED GAIN (dB) -30 1VP-P 5VP-P -6 2VP-P -9 -12 1M 10M 100M 1G 5VOP-P-DIFF 100Ω RLOAD -50 THD -60 -70 3rd HD 2nd HD -80 -90 -100 1M 10M FIGURE 24. HARMONIC DISTORTION vs FREQUENCY FIGURE 23. LARGE SIGNAL FREQUENCY RESPONSE -40 100Ω RLOAD -50 -55 -60 THD -65 -70 -75 -80 2nd HD -85 3rd HD VOP-P-LOAD (V) 10 FIGURE 25. 4MHz HARMONIC DISTORTION vs OUTPUT VOLTAGE 8 HARMONIC DISTORTION (dBc) HARMONIC DISTORTION (dBc) -40 -90 1 100M FREQUENCY (Hz) FREQUENCY (Hz) -45 1G FIGURE 22. SMALL SIGNAL FREQUENCY RESPONSE vs CLOAD 6 -3 100M FREQUENCY (Hz) FIGURE 21. SMALL SIGNAL FREQUENCY vs RLOAD 0 18pF 100Ω RLOAD -45 -50 -55 THD -60 -65 -70 -75 3rd HD -80 2nd HD -85 -90 1 10 VOP-P-LOAD (V) FIGURE 26. 10MHz HARMONIC DISTORTION vs OUTPUT VOLTAGE FN6795.0 March 16, 2012 ISL1550 Typical Performance Curves TA = +25°C, C0 and C1 Varied, unless otherwise noted. VCC = ±6V, See Figure 3, Gain = 5V/V (Differential), Rf = 1.5kΩ, RLOAD = 100Ω, -30 -40 13.5 VS = ±6V 12.5 VS = ±6V 11.5 RF = 750Ω AV = 5 DIFFERENTIAL (Ω) -60 RLOAD = 100Ω VIN = 1VP-P DIFF -70 -80 -90 10.5 9.5 4.5 10M FREQUENCY (Hz) 100M FULL POWER MEDIUM POWER 6.5 -110 1M RL = 100Ω DIFF 7.5 5.5 -120 100k RG = 374Ω 8.5 -100 LOW POWER 3.5 100k 1G 1M 10M FREQUENCY (Hz) 100M FIGURE 28. DIFFERENTIAL OUTPUT IMPEDANCE FIGURE 27. OFF-ISOLATION T = 0s T = 1.60000µs C0, C1 PIN 2V/DIV C0, C1 PIN 2V/DIV Output Sine Wave OUTPUT PIN 5V/DIV OUTPUT PIN 5V/DIV 300ns FIGURE 29. POWER ON FIGURE 30. POWER OFF 40 T = 242.800ns FULL POWER(mA) 35 OUTPUT A 2V/DIV OUTPUT B QUIESCENT CURRENT (mA) GAIN (dB) -50 RF = 750Ω 30 25 MEDIUM POWER 20 15 LOW POWER 10 5 Figure 1 0 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 TEMPERATURE (°C) FIGURE 31. OVERDRIVE RECOVERY 9 FIGURE 32. QUIESCENT CURRENT vs TEMPERATURE FN6795.0 March 16, 2012 ISL1550 Typical Performance Curves VCC = ±6V, See Figure 3, Gain = 5V/V (Differential), Rf = 1.5kΩ, RLOAD = 100Ω, TA = +25°C, C0 and C1 Varied, unless otherwise noted. (Continued) -80 -60 12VP-P-D 20Ω RLOAD -62 -84 -64 -86 -66 -88 -68 HD (dBc) HD (dBc) -82 -90 -92 2nd HD -94 -96 -70 -72 -74 3rd HD -76 -98 Figure 1 -100 -40 -30 -20 -10 2nd HD -78 0 10 20 30 40 50 60 70 TEMPERATURE(°C) FIGURE 33. 200kHz DISTORTION vs TEMPERATURE 10 80 Figure 1 -80 -40 -30 -20 -10 3rd HD 0 10 20 30 40 50 60 70 80 TEMPERATURE(°C) FIGURE 34. 4MHz DISTORTION vs TEMPERATURE FN6795.0 March 16, 2012 ISL1550 Applications Information Product Description The ISL1550 is a dual operational amplifier designed for line driving in DMT VDSL2 8MHz, 12MHz, 17MHz and 30MHz bandplans solutions. It is a current mode feedback amplifier with low distortion drawing moderately low supply current. Due to the current feedback architecture, the ISL1550 closed-loop 3dB bandwidth is dependent on the value of the feedback resistor. First, the desired bandwidth is selected by choosing the feedback resistor, RF, and then the gain is set by picking the gain resistor, RG (Figure 3). VDSL CO Applications The ISL1550 is designed as a VDSL line driver for CO. At an output current of ±450mA, the typical supply voltage headroom is 1.5V on each side of the differential output. The average line power requirement for the VDSL CO application is 20dBm (100mW) into a 100Ω line. The average line voltage is 3.16VRMS. The VDSL DMT peak-to-average ratio (crest factor) of 5.3 implies peak voltage of 16.8VP into the line. Using a differential drive configuration and transformer coupling with standard back termination, a transformer ratio of 1:2.5 is selected. The active termination technique provides better power efficiency by reducing the backmatch resistor by a factor of K = 5. Positive feedback resistors, RP, can be sized to make the effective backmatch impedance larger. The circuit configuration is shown in Figure 35. 12.5/k + - 750Ω RP TX1 100 AFE 1:2.5 1.5kΩ + 750Ω RP = RF(K/(K-1)) FIGURE 35. CIRCUIT CONFIGURATION Power Supply Bypassing and Printed Circuit Board Layout As with any high frequency device, good printed circuit board layout is necessary for optimum performance. Ground plane construction is highly recommended. Lead lengths should be as short as possible (below 0.25”). The power supply pins must be well bypassed to reduce the risk of oscillation. A 4.7µF tantalum capacitor in parallel with a 0.1µF ceramic capacitor is adequate 11 For good AC performance, parasitic capacitances should be kept to a minimum, especially at the inverting input. This implies keeping the ground plane away from this pin. Carbon or metal film resistors are acceptable, while use of wire-wound resistors should be avoided because of their parasitic inductance. Similarly, capacitors should be low inductance for best performance. Capacitance at the Inverting Input Due to the topology of the current feedback amplifier, stray capacitance at the inverting input will affect the AC and transient performance of the ISL1550 when operating in the non-inverting configuration. Feedback Resistor Values The ISL1550 has been designed and specified with RF = 1.5kΩ for AV = +5 (Figure 3). As is the case with all current feedback amplifiers, wider bandwidth at the expense of slight peaking, can be obtained by reducing the value of the feedback resistor. Inversely, larger values of the feedback resistor will cause rolloff to occur at a lower frequency. Quiescent Current vs Temperature The ISL1550 was designed to slightly increase quiescent current with temperature to maintain good distortion performance at high temperatures. Refer to “Typical Performance Curves” beginning on page 5. Supply Voltage Range RPΩ 12.5/k for each supply pin. During power-up, it is necessary to limit the slew rate of the rising power supply to less than 1V/µs. If the power supply rising time is undetermined, a series 10Ω resistor on the power supply line before the decoupling caps can be used to ensure the proper power supply rise time. The ISL1550 has been designed to operate with supply voltages from ±4.0V to ±6.6V nominal. Optimum bandwidth, slew rate, and video characteristics are obtained at higher supply voltages. Single Supply Operation If a single supply is desired, values from +8.0V to +13.2V nominal can be used as long as the input common mode range is not exceeded. When using a single supply, be sure to either, 1. DC bias the inputs at an appropriate common mode voltage and AC-couple the signal, or 2. Ensure the driving signal is within the common mode range of the ISL1550. FN6795.0 March 16, 2012 ISL1550 Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest revision. DATE REVISION March 16, 2012 FN6795.0 CHANGE Initial release. Products Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks. Intersil's product families address power management and analog signal processing functions. Go to www.intersil.com/products for a complete list of Intersil product families. For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page on intersil.com: ISL1550 To report errors or suggestions for this datasheet, please go to: www.intersil.com/askourstaff For additional products, see www.intersil.com/product_tree Intersil products are manufactured, assembled and tested utilizing ISO9000 quality systems as noted in the quality certifications found at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 12 FN6795.0 March 16, 2012 ISL1550 Package Outline Drawing L16.4x4H 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 1/12 2.40 4X 1.95 4.00 12X 0.65 A B 13 6 PIN 1 INDEX AREA 6 PIN #1 INDEX AREA 16 1 4.00 12 2.40 9 (4X) 4 0.15 5 8 0.10 M C A B 16x 0.550±0.05 TOP VIEW BOTTOM VIEW 4 0.30 ±0.05 SEE DETAIL "X" 0.90±0.10 0.10 C C BASE PLANE SEATING PLANE ( 3 . 6 TYP ) SIDE VIEW ( (12x0.65) 2.40) (16x0.30) C 0 . 20 REF 5 (16x0.75) +0.03/-0.02 TYPICAL RECOMMENDED LAND PATTERN DETAIL "X" NOTES: 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to ASME Y14.5m-1994. 3. Unless otherwise specified, tolerance : Decimal ± 0.05 4. Dimension applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 5. Tiebar shown (if present) is a non-functional feature. 6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 identifier may be either a mold or mark feature. 13 FN6795.0 March 16, 2012