ISL6216 NS DESIG EW request the full datasheet, please visit www.intersil.com/products/isl6216 R NTo O F D T E N D E CEM MMEN A O L C P E E R R t ED NO T MENDSheet Center a March 2004 FN9108.1 OMData Support c l NO REC s a /t ic m n o h c .c e il T s r r u te o contact ERSIL or www.in T N -I 8 8 -8 1 Precise 2-Phase Buck PWM Controller for Intel® Mobile Voltage Positioning IMVP-IV™ The ISL6216 2-Phase Buck PWM control IC, with ISL6206 or ISL6207 half bridge gate drivers, provides a precision voltage regulation system for advanced microprocessors in notebook computers. Two phase operation and discrete external gate drivers address the thermal management issues and load demand of Intel’s latest high performance processors. This control IC features both input voltage feedforward and average current mode control for excellent dynamic response, lossless current sensing using the lower MOSFET’s rDS(ON), and user selectable switching frequencies from 200kHz to 1MHz. The ISL6216 includes a 6 bit digital-to-analog converter (DAC) that dynamically adjusts the CORE PWM output voltage from 0.700V to 1.708V and conforms to the Intel IMVP-IV mobile VID specification. The ISL6216 also has logic inputs to detect between Active mode and Deep Sleep/ Deeper Sleep suspend modes. To improve efficiency at light load operation, single channel PWM is available during Deeper Sleep operation. A precision reference, remote sensing and proprietary architecture with programmable droop compensation, provide excellent static and dynamic CORE voltage regulation. Another feature of this controller IC is the PG_IN monitor circuit which allows a companion VCCP and VCC_MCH controller to inhibit the ISL6216 PGOOD until the VCCP and VCC_MCH voltages are within regulation. The Over-Voltage threshold is 1.724V, and CORE output voltage above this level results in converter shutting down. Under-Voltage, at 86% of the programmed level, results in PGOOD being pulled low. Over-Current protection features pulse by pulse current limiting. PG_IN, PGOOD, Over-Voltage, UnderVoltage and Over-Current features provide monitoring and protection for the microprocessor and power system. The ISL6216 IC package is available in 28 lead SSOP. Ordering Information PART NUMBER ISL6216CA TEMP. (°C) PACKAGE -10 to 85 PKG. DWG. # 28 Lead SSOP M28.15 Features • 2-Phase or Single Phase Power Conversion • High Efficiency Current Sensing - Option for thermal compensation - Optional Current-Sense Resistor for Precision OverCurrent • Precision CORE Voltage Regulation - 1% System Accuracy Over Temperature • Microprocessor Voltage Identification Input - 6-Bit VID Input - 0.700V to 1.708V in 16mV steps - Programmable Droop Voltage • DSEN# (STP_CPU#) and DRSEN (DPRSLPVR) logic inputs for low power states • DSV voltage input for DEEP SLEEP Mode • DRSV voltage input for DEEPER SLEEP Mode • Programmable slew rate control on output voltage • Excellent Dynamic Response - Combined Input Voltage Feed-Forward, Average Current Mode Control and Output Voltage Feedback • Over-Voltage, Under-Voltage and Over-Current Protection • 2 or 1 Phase User Selectable Operation • Power-Good Output and PG_IN input • User selectable Switching Frequency of 200kHz -1MHz - 400kHz - 2.0 MHz Effective Ripple Frequency Pinout ISL6216 (28 LEAD SSOP) TOP VIEW VID 0 1 28 VCC VID 1 2 27 PGOOD VID 2 3 26 RAMPS VID 3 4 25 VSEN VID 4 5 24 VRTN VID 5 6 23 PG_IN VMON 7 22 ISEN1 FB 8 21 PWM1 COMP 9 20 PWM2 FS-EN 10 19 ISEN2 STV 11 18 DRSEN DRSV 12 17 DSEN# SOFT 13 16 OCSET GND 14 1 15 DSV CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. Copyright Intersil Americas LLC 2004. All Rights Reserved. All other trademarks mentioned are the property of their respective owners. ISL6216 All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9001 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. 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. 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 2 Intersil Confidential Material. Contents covered under contractual terms and obligations.