isl6208a Intersil Corporation, isl6208a Datasheet
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isl6208a
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isl6208a Summary of contents
Page 1
... This feature eliminates a protective Schottky diode usually seen in a microprocessor power systems. MOSFET gates can be efficiently switched up to 2MHz using the ISL6208A. Each driver is capable of driving a 3000pF load with propagation delays of 15ns and transition times under 10ns. Bootstrapping is implemented with an internal Schottky diode ...
Page 2
... SHOOT- THROUGH PROTECTION CONTROL LOGIC 10K THERMAL PAD (FOR QFN PACKAGE ONLY) FIGURE 1. BLOCK DIAGRAM 2. TSSHD t PDHL t FL ISL6208ACR (8 LD 3x3 QFN) TOP VIEW FCCM BOOT 1 6 PWM 2 5 VCC 3 4 BOOT UGATE PHASE VCC LGATE GND ...
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... FCCM Transient Delay SWITCHING TIME UGATE Rise Time (Note 5) LGATE Rise Time (Note 5) UGATE Fall Time (Note 5) 3 ISL6208A Thermal Information Thermal Resistance (Typical Notes θ SOIC Package (Note QFN Package (Notes 3, 4 -0. (DC) Maximum Junction Temperature (Plastic Package 150°C -0. (< ...
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... LGATE R 500mA Sink Current 2.5V L LGATE +5V V VCC BOOT UGATE FCCM PWM PHASE DRIVE ISL6208A LGATE THERMAL PAD +5V VCC BOOT FCCM UGATE PHASE DRIVE PWM ISL6208A LGATE THERMAL PAD MIN TYP MAX - 4 0Ω SET = 0Ω SET = 80kΩ SET = 80kΩ ...
Page 5
... MOSFET. This pin provides a return path for the upper gate driver. Description Theory of Operation Designed for speed, the ISL6208A 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 Timing Diagram) ...
Page 6
... Typical Performance Waveforms FIGURE 2. LOAD TRANSIENT (0 - 30A, 3-PHASE) FIGURE 4. DCM TO CCM TRANSITION AT NO LOAD FIGURE 6. PRE-BIASED STARTUP IN CCM MODE 6 ISL6208A FIGURE 3. LOAD TRANSIENT (30 - 0A, 3-PHASE) FIGURE 5. CCM TO DCM TRANSITION AT NO LOAD FIGURE 7. PRE-BIASED STARTUP IN DCM MODE FN9272.0 February 15, 2006 ...
Page 7
... The turn-OFF of the low side MOSFET can cause gross current measurement inaccuracies. Three-State PWM Input A unique feature of the ISL6208A 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, the output drivers are disabled and both MOSFET gates are pulled and held low ...
Page 8
... The maximum allowable IC power dissipation for the SO-8 package is approximately 800mW. When designing the driver into an application recommended that the following calculation be performed to ensure safe operation at the desired 8 ISL6208A as frequency for the selected MOSFETs. The power dissipated DELAY by the driver is approximated as: P ...
Page 9
... Quad Flat No-Lead Plastic Package (QFN) 9 ISL6208A L8.3x3 8 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE (COMPLIANT TO JEDEC MO-220VEEC ISSUE C) MILLIMETERS SYMBOL MIN 0. θ - NOTES: 1. Dimensioning and tolerancing conform to ASME Y14.5-1994 the number of terminals. ...
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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 10 ISL6208A M8.15 (JEDEC MS-012-AA ISSUE C) 8 LEAD NARROW BODY SMALL OUTLINE PLASTIC PACKAGE ...