ISL6443AEVAL2Z Intersil, ISL6443AEVAL2Z Datasheet
ISL6443AEVAL2Z
Specifications of ISL6443AEVAL2Z
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ISL6443AEVAL2Z Summary of contents
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... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 All other trademarks mentioned are the property of their respective owners. ISL6443A June 2, 2008 FN6600.2 DS(ON) | Intersil (and design registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2007, 2008. All Rights Reserved ...
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Pinouts ISL6443A (28 LD QFN) TOP VIEW PHASE2 1 ISEN2 2 PGOOD 3 VCC_5V 4 5 SD2 SS2 6 7 OCSET2 ISL6443A 23 22 ISEN1 21 PGND 20 19 ...
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Block Diagram BOOT1 UGATE1 PHASE1 ADAPTIVE DEAD-TIME VCC_5V V/I SAMPLE TIMING LGATE1 PGND 0.8V REFERENCE + GATE3 + FB3 18.5pF 1400kΩ 180kΩ FB1 - 16kΩ 0.8V ERROR AMP 1 REF ISEN1 ...
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Typical Application Schematic D1 BAT54HT1 C3 1µF C7 0.1µF L1 VOUT1 6.4µ +1.2V, 2A 330µ FDS6990S 4.99k R2 10k PGOOD *NOTE: Pin numbers correspond to the QFN pinout. 4 ISL6443A C2 4.7µF VIN VCC_5V SS1 SS2 ...
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... Maximum Junction Temperature . . . . . . . . . . . . . . .-55°C to +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 5.6V to 24V, or VCC_5V = 5V ±10 +25°C. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless ...
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Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical Application Schematic” on page 4. V Typical values are at T otherwise specified. Temperature limits established by characterization and are not production tested. ...
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Electrical Specifications Recommended operating conditions unless otherwise noted. Refer to “Block Diagram” on page 3 and “Typical Application Schematic” on page 4. V Typical values are at T otherwise specified. Temperature limits established by characterization and are not production tested. ...
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Typical Performance Curves 3.40 3.39 3.38 3.37 3.36 3.35 3.34 3.33 3.32 3.31 3.30 0 0.5 1.0 1.5 2.0 2.5 LOAD CURRENT (A) FIGURE 1. PWM1 LOAD REGULATION 0.85 0.84 0.83 0.82 0.81 0.80 0.79 0.78 0.77 0.76 0.75 -40 ...
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Typical Performance Curves V 200mV/DIV OUT1 AC-COUPLED I 1A/DIV OUT1 FIGURE 7. LOAD TRANSIENT RESPONSE V VCC_5V 1V/DIV V 1V/DIV OUT1 FIGURE 9. PWM SOFT-START WAVEFORM 100 LOAD CURRENT (A) FIGURE 11. PWM1 ...
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Pin Descriptions BOOT2, BOOT1 - These pins power the upper MOSFET drivers of each PWM converter. Connect these pins to the junction of the bootstrap capacitor and the cathode of the bootstrap diode. The anode of the bootstrap diode is ...
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Functional Description General Description The ISL6443A integrates control circuits for two synchronous buck converters and one linear controller. The two synchronous bucks operate out-of-phase to substantially reduce the input ripple and thus reduce the input filter requirements. The chip has ...
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Out-of-Phase Operation The two PWM controllers in the ISL6443A operate 180 out-of-phase to reduce input ripple current. This reduces the input capacitor ripple current requirements, reduces power supply-induced noise and improves EMI. This effectively helps to lower component cost, save ...
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---------------------------------------- - OCSET where the desired overcurrent protection threshold, OC and value of the current ...
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CONVERTER 17.5dB M G MODULATOR FIGURE 17. FEEDBACK LOOP COMPENSATION The zero frequency, the amplifier high-frequency gain, and the modulator gain are chosen to satisfy most typical applications. The crossover ...
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This bypass capacitor, in addition to the transistor’s input capacitor, could bring in a second pole that will destabilize the linear regulator. Therefore, the stability requirements determine the maximum base-to-emitter capacitance. ...
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Output Capacitor Selection The output capacitors for each output have unique requirements. In general, the output capacitors should be selected to meet the dynamic regulation requirements including ripple voltage and load ...
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Input Capacitor Selection The important parameters for the bulk input capacitor(s) are the voltage rating and the RMS current rating. For reliable operation, select bulk input capacitors with voltage and current ratings above the maximum input voltage and largest RMS ...
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Package Outline Drawing L28.5x5 28 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 2, 10/07 5.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( 4. 65 TYP ) ( 3. 10) TYPICAL RECOMMENDED LAND PATTERN 18 ISL6443A A B ...
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... 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 ...