ISL6608 Intersil Corporation, ISL6608 Datasheet
ISL6608
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ISL6608 Summary of contents
Page 1
... Schottky diode that is usually seen in a microprocessor power system for protecting the microprocessor from reversed-output-voltage damage. A diode emulation feature is integrated in the ISL6608 to enhance converter efficiency at light load conditions. Diode emulation also prevents a negative transient when starting up with a pre-biased voltage on the output. When diode ...
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... Pinouts ISL6608CB (SOIC) TOP VIEW UGATE 1 BOOT 2 PWM 3 GND 4 Block Diagram VCC FCCM PWM 2 ISL6608 8 PHASE 7 FCCM 6 VCC 5 LGATE ISL6608 SHOOT- THROUGH PROTECTION CONTROL LOGIC 10K THERMAL PAD (FOR QFN PACKAGE ONLY) ISL6608CR (QFN) TOP VIEW BOOT 1 6 FCCM PWM ...
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... Typical Application - Multi-Phase Converter Using ISL6608 Gate Drivers +5V +5V FB COMP VCC VSEN PWM1 PWM2 PGOOD FCCM MAIN CONTROL ISEN1 VID ISEN2 FS DACOUT GND 3 ISL6608 V BAT +5V VCC BOOT UGATE FCCM PWM PHASE DRIVE ISL6608 LGATE THERMAL PAD V BAT +5V VCC BOOT UGATE FCCM ...
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... FCCM LOW Threshold FCCM HIGH Threshold SWITCHING TIME UGATE Rise Time LGATE Rise Time UGATE Fall Time LGATE Fall Time 4 ISL6608 Thermal Information Thermal Resistance (Typical, Notes 2, 3, 4)θ SOIC Package (Note 0.3V BOOT QFN Package (Notes 3, 4 ...
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... GND (Pin 4 for SOIC-8, Pin 3 for QFN) GND is the ground pin for the IC. LGATE (Pin 5 for SOIC-8, Pin 4 for QFN) LGATE is the lower gate drive output. Connect to gate of the low-side power N-Channel MOSFET. 5 ISL6608 SYMBOL TEST CONDITIONS 5V, Outputs Unloaded PDLU ...
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... Description Theory of Operation Designed for speed, the ISL6608 dual MOSFET driver controls both high-side and low-side N-Channel FETs from one externally provided PWM signal. A rising edge on PWM initiates the turn-off of the lower MOSFET (see Figure 1, Timing Diagram). After a short propagation delay [t ], the lower gate begins to fall ...
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... FIGURE 2. LOAD TRANSIENT (0 to 30A, 3-PHASE) FIGURE 4. DCM TO CCM TRANSITION AT NO LOAD INDUCTOR CURRENT VOUT FIGURE 6. PRE-BIASED STARTUP IN CCM MODE (FCCM = HI) 7 ISL6608 FIGURE 3. LOAD TRANSIENT (30 to 0A, 3-PHASE) FIGURE 5. CCM TO DCM TRANSITION AT NO LOAD INDUCTOR CURRENT VOUT FIGURE 7. PRE-BIASED STARTUP IN DCM MODE (FCCM = LO) ...
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... DS(ON) MOSFET can cause gross current measurement inaccuracies. Three-State PWM Input A unique feature of the ISL6608 and other Intersil drivers is the addition of a shutdown window to the PWM input. If the PWM signal enters and remains within the shutdown window for a set holdoff time (typical 160ns), the output drivers are disabled and both MOSFET gates are pulled and held low ...
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... FREQUENCY (kHz) FIGURE 9. POWER DISSIPATION vs FREQUENCY 9 ISL6608 Layout Consideration For heat spreading, place copper underneath the IC whether it has an exposed pad or not. The copper area can be extended beyond the bottom area of the IC and/or connected to buried copper plane(s) with thermal vias. This ...
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... Quad Flat No-Lead Plastic Package (QFN) Micro Lead Frame Plastic Package (MLFP) 10 ISL6608 L8.3x3 8 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220VEEC ISSUE C) MILLIMETERS SYMBOL MIN NOMINAL A 0. 0.23 D 3.00 BSC D1 2.75 BSC D2 0.25 E 3.00 BSC E1 2.75 BSC E2 0. 0. θ ...
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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 ISL6608 M8.15 (JEDEC MS-012-AA ISSUE C) 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC ...