ISL6520A Intersil Corporation, ISL6520A Datasheet
ISL6520A
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ISL6520A Summary of contents
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... Data Sheet Single Synchronous Buck Pulse-Width Modulation (PWM) Controller The ISL6520A makes simple work out of implementing a complete control and protection scheme for a DC-DC stepdown converter. Designed to drive N-channel MOSFETs in a synchronous buck topology, the ISL6520A integrates the control, output adjustment, monitoring and protection functions into a single 8-Lead package ...
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... COMP/SD FB VCC SAMPLE + - AND OC HOLD COMPARATOR PWM ERROR COMPARATOR AMP + - + - OSCILLATOR FIXED 300kHz DCPL BULK VCC BOOT 5 1 ISL6520A UGATE 2 7 PHASE LGATE GND QFN TOP VIEW BOOT UGATE 2 11 COMP/OCSET GND GND 3 ...
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... ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2 Operating Conditions Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±10% Ambient Temperature Range - ISL6520AC . . . . . . . . . . 0 Ambient Temperature Range - ISL6520AI -40 Junction Temperature Range . . . . . . . . . . . . . . . . . -40 CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied ...
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... Figure 1 shows the inductor current after a fault is introduced while running at 15A. The continuous fault causes the ISL6520A to go into a hiccup mode with a typical period of 25ms. The inductor current increases to 18A during the Soft Start interval and causes an overcurrent trip. The converter dissipates very little power with this method ...
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... OCSET When the converter is sinking current behaving as a boost converter that is regulating it’s input voltage. This means that the converter is boosting current into the V rail, which supplies the bias voltage to the ISL6520A. If there ( ∆ nowhere for this current to go, such as to other distributed ...
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... Q 1 for the MOSFETs’ gate and source connections from the ISL6520A must be sized to handle peak current. Figure 4 shows the circuit traces that require additional layout consideration. Use single point and ground plane construction for the circuits shown. Minimize any leakage ...
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... Given a sufficiently fast control loop design, the ISL6520A will provide either 0% or 100% duty cycle in response to a load transient. The response time is the time required to slew the inductor current from an initial current value to the transient current level ...
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... MOSFET’ TRAN body diode. The gate-charge losses are dissipated by the V OUT ISL6520A and don't heat the MOSFETs. However, large gate- charge increases the switching interval the RISE the MOSFET switching losses. Ensure that both MOSFETs is the ...
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... ISL6520A DC-DC Converter Application Circuit Figure 8 shows an application circuit of a DC-DC Converter. Detailed information on the circuit, including a complete Bill- +5V 6.19kΩ COMP/OCSET 10.0kΩ 470pF 8200pF FB 1.00kΩ Component Selection Notes: - Each 330mF 6.3WVDC, Sanyo 6TPB330M or Equivalent Each 330mF 6.3WVDC, Sanyo 6TPB330M or Equivalent. ...
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... The lead width “B”, as measured 0.36mm (0.014 inch) or greater above the seating plane, shall not exceed a maximum value of 0.61mm (0.024 inch). 10. Controlling dimension: MILLIMETER. Converted inch dimensions are not necessarily exact. 10 ISL6520A M8.15 (JEDEC MS-012-AA ISSUE C) 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE M ...
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... 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 11 ISL6520A L16.4x4 16 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220-VGGC ISSUE C) ...