ISL6217CVZ-T Intersil, ISL6217CVZ-T Datasheet

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ISL6217CVZ-T

Manufacturer Part Number
ISL6217CVZ-T
Description
IC CTRLR PWM INTEL PENT 38-TSSOP
Manufacturer
Intersil
Datasheet

Specifications of ISL6217CVZ-T

Applications
Controller, Intel Pentium® IMVP-IV, IMVP+
Voltage - Input
5.5 ~ 25 V
Number Of Outputs
1
Operating Temperature
-10°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
38-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Output
-

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ISL6217CVZ-T
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ISL6217CVZ-T
Quantity:
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Precision Multi-Phase Buck PWM
Controller for Intel‚ Mobile Voltage
Positioning IMVP-IV ™ and IMVP-IV+ ™
The ISL6217 Multi-Phase Buck PWM control IC, with
integrated half bridge gate drivers, provides a precision
voltage regulation system for advanced Pentium“ IV
microprocessors in notebook computers. Two-phase
operation eases the thermal management issues and load
demand of Intel’s latest high performance processors. This
control IC also features both input voltage feed-forward and
average current mode control for excellent dynamic
response, “Loss-less” current sensing using MOSFET
RDS(ON) and user selectable switching frequencies from
250kHz to 1MHz per phase.
The ISL6217 includes a 6-bit digital-to-analog converter
(DAC) that dynamically adjusts the CORE PWM output
voltage from 0.700V to 1.708V in 16mV steps and conforms
to the Intel IMVP-IV™ and IMVP-IV+™ mobile VID
specification. The ISL6217 also has logic inputs to select
Active, Deep Sleep and Deeper Sleep modes of operation.
A precision reference, remote sensing and proprietary
architecture, with integrated processor-mode compensated
“Droop”, provide excellent static and dynamic CORE voltage
regulation.
To improve efficiency at light loading, the ISL6217 can be
configured to run in single phase PWM in ACTIVE, DEEP or
DEEPER SLEEP modes of operation.
Another feature of this IC controller is the PGOOD monitor
circuit that is held low until CORE voltage increases, during
its soft-start sequence, to within 12% of the “Boot” voltage.
This PGOOD signal is masked during VID changes. Output
Overcurrent, Overvoltage and Undervoltage are monitored
and result in the converter latching off and PGOOD signal
being held low.
The Overvoltage and Undervoltage thresholds are 112%
and 84% of the VID, Deep or Deeper Sleep setpoint,
respectively. Overcurrent protection features a 32 cycle
Overcurrent shutdown. PGOOD, Overvoltage, Undervoltage
and Overcurrent provide monitoring and protection for the
microprocessor and power system. The ISL6217 IC is
available in a 38 lead TSSOP.
®
1
Data Sheet
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
Features
Ordering Information
NOTES:
1. Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
ISL6217CV
ISL6217CV-T
ISL6217CVZ
(Note 1)
ISL6217CVZ-T
(Note 1)
ISL6217CVZA
(Note 1)
ISL6217CVZA-T
(Note 1)
• IMVP-IV™ and IMVP-IV+™ Compliant CORE Regulator
• Single and/or Two-phase Power Conversion
• “Loss-less” Current sensing for improved efficiency and
• Internal Gate-Drive and Boot-Strap Diodes
• Precision CORE Voltage Regulation
• 6-Bit Microprocessor Voltage Identification Input
• Programmable “Droop” and CORE Voltage Slew Rate to
• Direct Interface with System Logic (STP_CPU# and
• Easily Programmable voltage setpoints for Initial “Boot”,
• Excellent Dynamic Response
• Overvoltage, Undervoltage and Overcurrent Protection
• Power-Good Output with internal blanking during VID and
• User programmable Switching Frequency of 250kHz -
• Pb-Free Plus Anneal Available (RoHS Compliant)
PART NUMBER
− Optional Discrete Precision Current Sense Resistor
− 0.8% system accuracy over temperature
− Combined Voltage Feed-Forward and Average
reduced board area
comply with IMVP-IV™ and IMVP-IV+™ specification
DPRSLPVR) for Deep and Deeper Sleep modes of
operation
Deep Sleep and Deeper Sleep Modes
mode changes
1MHz per phase
December 2006
Current Mode Control
All other trademarks mentioned are the property of their respective owners
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
38 Ld TSSOP Tape and Reel
38 Ld TSSOP Tape and Reel
(Pb-free)
38 Ld TSSOP Tape and Reel
(Pb-free)
TEMP (°C)
Copyright © Intersil Americas Inc. 2006. All Rights Reserved
-10 to 85
-10 to 85
-10 to 85
38 Ld TSSOP
38 Ld TSSOP
(Pb-free)
38 Ld TSSOP
(Pb-free)
PACKAGE
ISL6217
FN9089.3
M38.173
M38.173
M38.173
M38.173
M38.173
M38.173
DWG. #
PKG.

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ISL6217CVZ-T Summary of contents

Page 1

... Pb-Free Plus Anneal Available (RoHS Compliant) Ordering Information PART NUMBER TEMP (°C) ISL6217CV - ISL6217CV TSSOP Tape and Reel ISL6217CVZ - (Note 1) ISL6217CVZ TSSOP Tape and Reel (Note 1) (Pb-free) ISL6217CVZA - (Note 1) ISL6217CVZA TSSOP Tape and Reel (Note 1) (Pb-free) NOTES: 1. Intersil Pb-free plus anneal products employ special Pb-free material sets ...

Page 2

Pinout ISL6217 (38 LEAD TSSOP) TOP VIEW VDD 1 38 DACOUT 2 37 DSV 3 36 FSET 4 35 PWRCH DRSEN 7 32 DSEN VID0 9 30 ISL6217 VID1 10 29 TSSOP VID2 ...

Page 3

Block Diagram VSEN PGOOD + CONTROL OVP - FAULT LOGIC 112% RISING 102% FALLING 88% RISING 84% FALLING - + UV 32 COUNT CLOCK CYCLE DACOUT V SOFT SOFT SOFT START EA+ VID0 VID1 VID2 VID VID3 D/A VID4 VID5 ...

Page 4

Typical Application - 2-Phase Converter Figure 1 shows a 2-Phase Synchronous Buck Converter circuit used to provide “CORE” voltage regulation for the Intel Pentium“ IV mobile processor using IMVP-IV™ and IMVP-IV+™ voltage positioning. The ISL6217 PWM controller can be configured ...

Page 5

Absolute Voltage Ratings Supply Voltage, VDD, VDDP .....................................-0.3-+7V Battery Voltage, VBAT.................................................... +30V Boot1,2 and UGATE1,2 .................................................. +35V Phase1,2 and ISEN1,2 ................................................... +30V Boot1,2 with respect to Phase1,2 .................................. +6.5V UGATE1,2 ................... (Phase1,2 - 0.3V) to (Boot1,2 + 0.3V) PHASE 1,2 ...

Page 6

Electrical Specifications Operating Conditions: VDD = 5V -10°C to 85°C, Unless Otherwise Specified PARAMETER UGATE Source Resistance 500mA Source Current UGATE Source Current V UGATE-PHASE = 2.5V UGATE Sink Resistance 500mA Sink Current UGATE Sink Current V UGATE-PHASE ...

Page 7

Functional Pin Description VDD 1 DACOUT 2 DSV 3 FSET 4 PWRCH DRSEN 7 DSEN# 8 VID0 9 ISL6217 VID1 10 TSSOP VID2 11 VID3 12 VID4 13 VID5 14 PGOOD 15 EA+ 16 COMP 17 FB ...

Page 8

... The ISL6217 PGOOD pin is both an input and an output. The system signal, IMVP4_PWRGD, is connected to power good signals from the Vccp and Vcc_mch supplies. The Intersil ISL6227, Dual Voltage Regulator is an ideal choice for the Vccp and Vcc_mch supplies. Once the output voltage is within the “Boot” level regulation ...

Page 9

ISL6217 DROOP + EA+ SOFT R DROOP + V DROOP C SOFT FIGURE 3. SOFT-START TRACKING CIRCUITRY SHOWING INTERNAL CURRENT SOURCES AND "DROOP" FOR ACTIVE, DEEP AND DEEPER SLEEP MODES OF OPERATION The “Droop” current ...

Page 10

Table 1. IMPV-IV VID CODES VID5 VID4 VID3 VID2 VID1 ...

Page 11

Current VID Code VID[0..5] < 600ns Current Voltage Level V CC_CORE PGOOD HIGH FIGURE 5. PLOT SHOWING TIMING OF VID CODE CHANGES AND CORE VOLTAGE SLEWING AS WELL AS PGOOD MASKING VID[0..5] STP_CPU# (DSEN#) VID Command Voltage V CC_CORE FIGURE ...

Page 12

When DSEN# is logic low and DRSEN is logic high the controller will operate in Deeper Sleep mode. The ISL6217 will then regulate to the voltage at the DRSV pin minus “Droop”. If the PWRCH pin is connected to the ...

Page 13

Precision Current Sense Resistor, R POWER , may be inserted between the SOURCE of each channel’s lower MOSFET and ground. The small R ISEN resistor, as described above, is then replaced with a standard ...

Page 14

... ISL6217 CORE regulator regulates to the “Boot” voltage, it waits for the PGOOD logic HIGH signals from the Vccp and Vcc_mch regulators. The Intersil ISL6227 is a perfect choice for these two supplies dual regulator and has independent PGOOD functions for each supply. Once ...

Page 15

Control Loops The “Block Diagram” and Figure 9 shows a simplified diagram of the voltage regulation and current control loops for a two-phase converter. Both voltage and current feedback are used to precisely regulate voltage and tightly control output currents, ...

Page 16

TM As per the Intel IMVP-IV and IMVP-IV+ Droop = 0.003 (Ω). Therefore, 25A of full load current equates to a 0.075V Droop output voltage from the VID setpoint (Refer to Figure 3 and Figure 9), R selected based on ...

Page 17

The worst case duty cycle is defined as the maximum operating CORE output voltage divided by the minimum operating battery voltage. Find the corresponding y-axis ...

Page 18

Typical Application - 2 Phase Converter Using ISL6217 PWM Controller - 38 Lead TSSOP Figure 14 shows the ISL6217, Synchronous Buck Converter circuit used to provide the CORE voltage regulation for the Intel IMVP-IV™ and IMVP-IV+™ application. The circuit uses ...

Page 19

... 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 ...

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