HIP6521CB Intersil, HIP6521CB Datasheet

HIP6521CB

Manufacturer Part Number

HIP6521CB

Description

IC PWM TRIPLE POWER CTRLR 16SOIC

Manufacturer

Intersil

Datasheet

1.HIP6521CBZ.pdf (13 pages)

Specifications of HIP6521CB

Pwm Type

Voltage Mode

Number Of Outputs

Frequency - Max

325kHz

Duty Cycle

100%

Voltage - Supply

4.5 V ~ 5.5 V

Buck

Yes

Boost

Flyback

Inverting

Doubler

Divider

Cuk

Isolated

Operating Temperature

0°C ~ 70°C

Package / Case

16-SOIC (3.9mm Width)

Frequency-max

325kHz

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

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Part Number

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Quantity

Price

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HIP6521CB

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HARRIS

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Part Number:

HIP6521CB

Manufacturer:

INTERSIL

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Part Number:

HIP6521CB-T

Manufacturer:

VOLGEN

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Meier Automation Equipment Co., Limited

Part Number:

HIP6521CBZ-T

Manufacturer:

INTERSIL

Quantity:

20 000

Current page: 1 of 13
Download datasheet (357Kb)

PWM and Triple Linear Power Controller

The HIP6521 provides the power control and protection for

four output voltages in high-performance microprocessor and

computer applications. The IC integrates a voltage-mode

PWM controller and three linear controllers, as well as

monitoring and protection functions into a 16 Ld SOIC

package. The PWM controller is intended to regulate the

microprocessor memory core voltage with a

synchronous-rectified buck converter. The linear controllers

are intended to regulate the computer system’s AGP 1.5V bus

power, the 2.5V clock power, and the 1.8V power for the

North/South Bridge core voltage and/or cache memory

circuits. Both the switching regulator and linear voltage

references provide ±2% of static regulation over line, load,

and temperature ranges. All outputs are user-adjustable by

means of an external resistor divider. All linear controllers

employ bipolar NPNs for the pass transistors.

The HIP6521 monitors all the output voltages. The PWM

controller’s adjustable overcurrent function monitors the

output current by using the voltage drop across the upper

MOSFET’s r

monitored via the FB pins for undervoltage events.

Ordering Information

NOTE: 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-02.

Add “-T” suffix for tape and reel.

HIP6521CB

HIP6521CBZ

(Note)

HIP6521EVAL1 Evaluation Board

NUMBER

PART

DS(ON)

HIP6521CB

6521CBZ

MARKING

PART

. The linear regulator outputs are

RANGE (°C) PACKAGE

TEMP.

0 to 70

Data Sheet

16 Ld SOIC

(Pb-free)

DWG. #

M16.15

1-888-INTERSIL or 1-888-468-3774

PKG.

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

Features

• Provides 4 Regulated Voltages

• ACPI Compatible

• Drives Bipolar Linear Pass Transistors

• Externally Resistor-Adjustable Outputs

• Simple Single-Loop Control Design

• Fast PWM Converter Transient Response

• Excellent Output Voltage Regulation

• Overcurrent Fault Monitors

• Small Converter Size

• Pb-Free Plus Anneal Available (RoHS Compliant)

Applications

• Motherboard Power Regulation for Computers

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Pinout

- Memory Core, AGP, Clock, and Memory Controller Hub

- Voltage-Mode PWM Control

- High-Bandwidth Error Amplifier

- Full 0% to 100% Duty Ratio

- All Outputs: ±2% Over Temperature

- Switching Regulator Does Not Require Extra Current

- 300kHz Constant Frequency Operation

- Small External Component Count

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

Power

Sensing Element, Uses MOSFET’s r

October 16, 2006

All other trademarks mentioned are the property of their respective owners.

Intersil (and design) is a registered trademark of Intersil Americas Inc.

DRIVE2

PHASE

UGATE

COMP

BOOT

GND

FB2

HIP6521 (SOIC)

TOP VIEW

DS(ON)

FB3

DRIVE3

FB4

DRIVE4

OCSET

VCC

LGATE

PGND

HIP6521

FN4837.5

Related parts for HIP6521CB

HIP6521CB Summary of contents

Page 1

... TEMP. NUMBER MARKING RANGE (°C) PACKAGE HIP6521CB HIP6521CB HIP6521CBZ 6521CBZ (Note) HIP6521EVAL1 Evaluation Board NOTE: 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 ...

Page 2

Block Diagram VCC EA3 - DRIVE3 + EA4 x 0.70 + DRIVE4 - + 0.8V - FB4 INHIBIT/SOFT-START + DRIVE2 - EA2 FB2 GND OSCILLATOR FB3 - + UV3 + - UV4 SOFT- START AND FAULT LOGIC + - UV2 ...

Page 3

Simplified Power System Diagram +5V (+ DUAL +5V DUAL +3. OUT2 + V OUT3 Typical Application +5V SB +5V DUAL +3. OUT2 2. OUT2 +3.3V DUAL ...

Page 4

Absolute Maximum Ratings UGATE, BOOT . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V to 15V VCC, PHASE . . ...

Page 5

Functional Pin Descriptions VCC (Pin 11) Provide a well decoupled 5V bias supply for the IC to this pin. This pin also provides the gate bias charge for the lower MOSFET controlled by the PWM section of the IC, as ...

Page 6

As the internal soft-start voltage increases, the pulse-width on the PHASE pin increases to reach its steady-state duty cycle at time T2. At time T3, the 3.3V input supply starts ramping up result, V ramping up ...

Page 7

The maximum r at the highest junction temperature. DS(ON) 2. The minimum I from the specification table. OCSET 3. Determine I for I > I PEAK PEAK OUT(MAX) ∆I is the output inductor ripple current. OVERCURRENT TRIP: V > ...

Page 8

The critical small signal components are those connected to sensitive nodes or those supplying critical bypass current. The power components and the controller IC should be placed first. Locate the input capacitors, especially the high-frequency ...

Page 9

Modulator Break Frequency Equations --------------------------------------- - = ---------------------------------------- - LC ESR × 2π × × 2π The compensation network consists of the error amplifier (internal to the HIP6521) and the impedance networks ...

Page 10

Important If the collector voltage to a linear regulator pass transistor (Q3, Q4, or Q5) is lost, the respective regulator has to be shut down by pulling high its FB pin (i.e., when an input power rail shuts down as ...

Page 11

Use a mix of input bypass capacitors to control the voltage overshoot across the MOSFETs. Use ceramic capacitance for the high frequency decoupling and bulk capacitors to supply the RMS current. Small ceramic capacitors can be placed very close to ...

Page 12

... S3 S5 FIGURE 9. POWER SUPPLY APPLICATION CIRCUIT FOR A MICROPROCESSOR COMPUTER SYSTEM 12 HIP6521 voltage (V the circuit, including a Bill-of-Materials and circuit board description, see Application Note AN9908. Also see Intersil’s web page (www.intersil.com) for the latest information. + C1-3 C4 3x1200µF 1µF VCC ...

Page 13

... 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 ...

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