ISL6225CA Intersil, ISL6225CA Datasheet
ISL6225CA
Specifications of ISL6225CA
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ISL6225CA Summary of contents
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... TEMP. (°C) ISL6225CA - ISL6225CAZ (Note 1) - SSOP (Pb-free) M28.15 ISL6225CAZA (Note 1) - SSOP (Pb-free) M28.15 NOTES: 1. Intersil Pb-free products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations ...
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Pinout 2 ISL6225 ISL6225 SSOP-28 TOP VIEW 28 VCC GND 1 LGATE1 2 27 LGATE2 PGND1 3 26 PGND2 PHASE1 4 25 PHASE2 UGATE1 5 24 UGATE2 BOOT1 6 23 BOOT2 ISEN1 7 22 ISEN2 EN1 8 21 EN2 20 ...
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Absolute Maximum Ratings Bias Voltage ...
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Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. (Continued) PARAMETER PWM CONVERTERS Load Regulation VSEN pin bias current V pin input impedance OUT Undervoltage Shut-Down Level Overvoltage Shut-Down GATE DRIVERS Upper Drive Pull-Up Resistance Upper Drive Pull-Down Resistance Lower Drive ...
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Functional Pin Description GND (Pin 1) Signal ground for the IC. LGATE1, LGATE2 (Pin 2, 27) These are outputs of the lower MOSFET drivers. PGND1, PGND2 (Pin 3, 26) These pins provide the return connection for lower gate drivers. These ...
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Generic Application Circuits ENABLE +V IN +3.3V TO +24V +5V FIGURE 1. ISL6225 APPLICATION CIRCUIT FOR TWO CHANNEL POWER SUPPLY ENABLE OCSET1 +V IN +3.3V TO +24V +5V PG2/VREF VREF +1.25V FIGURE 2. ISL6225 APPLICATION CIRCUIT FOR COMPLETE DDR MEMORY ...
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Block Diagram BOOT1 UGATE1 PHASE1 ADAPTIVE DEAD-TIME DIODE EMULATION PGND1 V/I SAMPLE TIMING PWM/HYS TRANSITION LGATE1 VCC + MODE CHANGE COMP 1 - SAME STATE FOR 8 CLOCK CYCLES REQUIRED TO CHANGE PWM OR HYS MODE HYSTERETIC COMPARATOR 1 - ...
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Description Operation The ISL6225 is a dual channel PWM controller intended for use in power supplies for graphic chipset, SDRAM, DDR DRAM or other low voltage power applications in modern notebook and sub-notebook PCs. The IC integrates two control circuits ...
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Automatic Operation Mode Control In nominal currents the synchronous buck converter operates in continuous-conduction constant-frequency mode. This mode of operation achieves higher efficiency due to the substantially lower voltage drop across the synchronous MOSFET compared to a Schottky diode. In ...
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The hysteretic comparator initiates the PWM signal when the output voltage gets below the lower threshold and terminates the PWM signal when the output voltage rises above the upper threshold. A spread or hysteresis between these two thresholds determines the ...
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The zero frequency, the amplifier high-frequency gain, and the modulator gain are chosen to satisfy most typical applications. The crossover frequency will appear at the point where the modulator attenuation equals the amplifier high frequency gain. The only task that ...
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If load step is strong enough to pull output voltage lower than the undervoltage threshold, the chip shuts down immediately. Because of the nature of the used current sensing technique, and to accommodate wide range of the r variation, the ...
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... Figure 15 depicts the DDR solution in the case where the 5V system rail is used as a primary voltage source. For detailed information on the circuit, including a Bill-of- Materials and circuit board description, see Application Note AN9995. Also see Intersil’s web site (http://www.intersil.com) for the latest information out-of-phase ...
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CR1 BAT54 WT1 + 0.15µF 1.0µF 10µ +2.50V 10µH 3.0A 1/2 FDS6912A 2.00K 17.8K 330µF C11 2/2 FDS6912A 15nF VPULLUP 100K 10K 100K POWER GOOD CH1 ENABLE POWER ...
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CR1 BAT54 WT1 + 0.15µF 1.0µF 10µ +2.50V 4.7µH 3.0A 1/2 FDS6912A 2.00K 17.8K 330µF C11 2/2 FDS6912A 15nF VPULLUP 10K 100K 100K POWER GOOD CH1 ENABLE POWER ...
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CR1 BAT54 WT1 + 0.15µF 1.0µF 10µ 10µH 1/2 FDS6912A 2.00K 6.65K 330µF C12 2/2 FDS6912A 15nF VPULLUP 100K 10K 100K POWER GOOD CH1 ENABLE POWER GOOD CH2 ...
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CR1 BAT54 WT1 + 1.0µF 0.15µF 10µ 4.6µH +2.50V ~ 6.0A 1/2 FDS6912A 3.0A VDDQ 17.8K 330µF C12 2/2 FDS6912A 15nF VPULLUP 10K 100K 100K POWER GOOD CH1 ...
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CR1 BAT54 WT1 + 1.0µF 10µF 0.15µ 4.6µH +2.50V 3.0A ~ 6.0A 1/2 FDS6912A VDDQ 17.8K 330µF C12 2/2 FDS6912A 15nF VPULLUP 100K 10K 100K POWER GOOD CH1 ...
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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 ...