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ISL6614AIRZ Datasheet(PDF) 7 Page - Intersil Corporation |
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ISL6614AIRZ Datasheet(HTML) 7 Page - Intersil Corporation |
7 / 12 page 7 FN9160.4 May 5, 2008 Functional Pin Description PKG. PIN NUMBER PIN SYMBOL FUNCTION SOIC QFN 115 PWM1 The PWM signal is the control input for the Channel 1 driver. The PWM signal can enter three distinct states during operation, see “Three-State PWM Input” on page 8 for further details. Connect this pin to the PWM output of the controller. 216 PWM2 The PWM signal is the control input for the Channel 2 driver. The PWM signal can enter three distinct states during operation, see “Three-State PWM Input” on page 8 for further details. Connect this pin to the PWM output of the controller. 31 GND Bias and reference ground. All signals are referenced to this node. 4 2 LGATE1 Lower gate drive output of Channel 1. Connect to gate of the low-side power N-Channel MOSFET. 5 3 PVCC This pin supplies power to both the lower and higher gate drives in ISL6614A. Its operating range is +5V to 12V. Place a high quality low ESR ceramic capacitor from this pin to GND. 64 PGND It is the power ground return of both low gate drivers. - 5, 8 N/C No Connection. 7 6 LGATE2 Lower gate drive output of Channel 2. Connect to gate of the low-side power N-Channel MOSFET. 8 7 PHASE2 Connect this pin to the SOURCE of the upper MOSFET and the DRAIN of the lower MOSFET in Channel 2. This pin provides a return path for the upper gate drive. 9 9 UGATE2 Upper gate drive output of Channel 2. Connect to gate of high-side power N-Channel MOSFET. 10 10 BOOT2 Floating bootstrap supply pin for the upper gate drive of Channel 2. Connect the bootstrap capacitor between this pin and the PHASE2 pin. The bootstrap capacitor provides the charge to turn on the upper MOSFET. See “Internal Bootstrap Device” on page 9 for guidance in choosing the capacitor value. 11 11 BOOT1 Floating bootstrap supply pin for the upper gate drive of Channel 1. Connect the bootstrap capacitor between this pin and the PHASE1 pin. The bootstrap capacitor provides the charge to turn on the upper MOSFET. See “Internal Bootstrap Device” on page 9 for guidance in choosing the capacitor value. 12 12 UGATE1 Upper gate drive output of Channel 1. Connect to gate of high-side power N-Channel MOSFET. 13 13 PHASE1 Connect this pin to the SOURCE of the upper MOSFET and the DRAIN of the lower MOSFET in Channel 1. This pin provides a return path for the upper gate drive. 14 14 VCC Connect this pin to a +12V bias supply. It supplies power to internal analog circuits. Place a high quality low ESR ceramic capacitor from this pin to GND. - 17 PAD Connect this pad to the power ground plane (GND) via thermally enhanced connection. ISL6614A |
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