EL7564CRE Intersil, EL7564CRE Datasheet
EL7564CRE
Specifications of EL7564CRE
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EL7564CRE Summary of contents
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... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-352-6832 All other trademarks mentioned are the property of their respective owners. EL7564 May 9, 2005 FN7297.3 | Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2003, 2005. All Rights Reserved ...
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... HTSSOP EL7564CRE-T7 28-Pin HTSSOP EL7564CRE-T13 28-Pin HTSSOP EL7564CREZ 28-Pin HTSSOP (See Note) (Pb-free) EL7564CREZ-T7 28-Pin HTSSOP (See Note) (Pb-free) EL7564CREZ-T13 28-Pin HTSSOP (See Note) (Pb-free) NOTE: 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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... PGN V Power Good Drive High PG_HI V Power Good Drive Low PG_LO V Over Voltage Protection OVP V Output Initial Accuracy (EL7564CM Output Initial Accuracy (EL7564CRE) V Output Line Regulation FB_LINE V Output Load Regulation FB_LOAD V Output Temperature Stability FB_TC I Feedback Input Pull Up Current Input High Level ...
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Closed-Loop AC Electrical Specifications PARAMETER DESCRIPTION F Oscillator Initial Accuracy OSC t Minimum Oscillator Sync Width SYNC M Soft Start Slope SS t FET Break Before Make Delay BRM t High Side FET Minimum On Time LEB D Maximum Duty ...
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... Chip enable, active high; a 2µA internal pull up current enables the device if the pin is left open; a capacitor can be added at this pin to delay the start of converter V =3.3V O 2.5 3 3.5 4 (A) O PIN FUNCTION V =5V IN 100 =2. 0.1 0.6 1.1 1.6 2.1 2.6 3.1 I (A) O FIGURE 2. EL7564CRE EFFICIENCY =3.3V =1.8V 3.6 4.1 FN7297.3 May 9, 2005 ...
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... PCB COPPER HEAT-SINKING AREA (in FIGURE 7. EL7564CM θ vs COPPER AREA JA 6 EL7564 (Continued) V =3. =2. =1.8V O 2.5 3 3.5 4 (A) O FIGURE 4. EL7564CRE TOTAL CONVERTER POWER LOSS V =5. = =4. 3.5 4 (A) O WITH NO AIRFLOW 3 3 FIGURE 8. EL7564CRE THERMAL RESISTANCE vs PCB 1.8 1.6 1.4 V =3. ...
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Typical Performance Curves 360 350 340 I =4A O 330 320 310 I =0A O 300 290 280 -40 - TEMPERATURE (°C) FIGURE 9. OSCILLATOR FREQUENCY vs TEMPERATURE =5. =4. ...
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Typical Performance Curves V =5V, V =3.3V, I =0.2A- ∆V O FIGURE 15. TRANSIENT RESPONSE V =5V, V =3.3V FIGURE 17. POWER-DOWN V =5V, V =3.3V, ...
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Typical Performance Curves JEDEC JESD51-7 HIGH EFFECTIVE THERMAL CONDUCTIVITY TEST BOARD. HTSSOP EXPOSED DIEPAD SOLDERED TO PCB PER JESD51-5 3.5 3.333W 3 2.5 2 1 AMBIENT TEMPERATURE (°C) FIGURE 21. PACKAGE POWER ...
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... Output Voltage Setting In general, EL7564CM: × V 0.975V ------ - OUT and EL7564CRE: × 0.992V 1 + ------ - OUT 100nA pull-up current from GND in the event that FB is floating. ...
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NMOS Power FETs and Drive Circuitry The EL7564 integrates low on-resistance (30mΩ) NMOS FETs to achieve high efficiency at 4A. In order to use an NMOS switch for the high-side drive it is necessary to drive the gate voltage above ...
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Power Tracking The power tracking pins STP and STN are the inputs to a comparator, whose HI output forces the PWM controller to skip switching cycles EL7564 ...
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Offset Tracking The intended start-up sequence is shown in Figure 23a. In this configuration, V will not start until V C value of × --------------------- - ...
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The second way of offset tracking is to use the EN and Power Good pins, as shown in Figure 24. In this configuration, V does not have to be larger than EL7564 7 ...
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... With 100 LFPM airflow, the ambient temperature can be extended to 85°C. 15 EL7564 The EL7564CRE utilizes the 28-pin HTSSOP package. The majority of heat is dissipated through the heat pad exposed at the bottom of the package. Therefore, the heat pad needs to be soldered to the PCB. The thermal resistance for this package is as low as 29° ...
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... Package Outline Drawing - 20-Pin SO (0.300”) Package NOTE: The package drawing shown here may not be the latest version. To check the latest revision, please refer to the Intersil website at <http://www.intersil.com/design/packages/index.asp> 16 EL7564 FN7297.3 May 9, 2005 ...
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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 ...