hip6015cb Intersil Corporation, hip6015cb Datasheet

hip6015cb

Manufacturer Part Number

hip6015cb

Description

Buck Pulse-width Modulator Pwm Controller And Output Voltage Monitor

Manufacturer

Intersil Corporation

Datasheet

1.HIP6015CB.pdf (12 pages)

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Buck Pulse-Width Modulator (PWM)

Controller and Output Voltage Monitor

The HIP6015 provides complete control and protection for a

DC-DC converter optimized for high-performance

microprocessor applications. It is designed to drive an

N-Channel MOSFET in a standard buck topology. The

HIP6015 integrates all of the control, output adjustment,

monitoring and protection functions into a single package.

The output voltage of the converter is easily adjusted and

precisely regulated. The HIP6015 includes a fully

TTL-compatible 5-input digital-to-analog converter (DAC)

that adjusts the output voltage from 2.1V

0.1V increments and from 1.8V

steps. The precision reference and voltage-mode regulator

hold the selected output voltage to within 1% over

temperature and line voltage variations.

The HIP6015 provides simple, single feedback loop,

voltage-mode control with fast transient response. It

includes a 200kHz free-running triangle-wave oscillator that

is adjustable from below 50kHz to over 1MHz. The error

amplifier features a 15MHz gain-bandwidth product and

6V/ s slew rate which enables high converter bandwidth for

fast transient performance. The resulting PWM duty ratio

ranges from 0% to 100%.

The HIP6015 monitors the output voltage with a window

comparator that tracks the DAC output and issues a Power

Good signal when the output is within 10%. The HIP6015

protects against over-current and over-voltage conditions by

inhibiting PWM operation. Additional built-in over-voltage

protection triggers an external SCR to crowbar the input

supply. The HIP6015 monitors the current by using the

a current sensing resistor.

Pinout

DS(ON)

of the upper MOSFET which eliminates the need for

OCSET

COMP

VID0

VID1

VID2

VID3

VID4

SEN

TOP VIEW

HIP6015

(SOIC)

to 2.05V

Data Sheet

OVP

BOOT

UGATE

PHASE

PGOOD

GND

to 3.5V

in 0.05V

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

Features

• Drives N-Channel MOSFET

• Operates from +5V or +12V Input

• Simple Single-Loop Control Design

• Fast Transient Response

• Excellent Output Voltage Regulation

• TTL-Compatible 5-Bit Digital-to-Analog Output Voltage

• Power-Good Output Voltage Monitor

• Over-Voltage and Over-Current Fault Monitors

• Small Converter Size

Applications

• Power Supply for Pentium®, Pentium Pro, Pentium II,

• High-Power 5V to 3.xV DC-DC Regulators

• Low-Voltage Distributed Power Supplies

Ordering Information

HIP6015CB

1-888-INTERSIL or 321-724-7143

PART NUMBER

- Voltage-Mode PWM Control

- High-Bandwidth Error Ampliﬁer

- Full 0% to 100% Duty Ratio

Selection

- Wide Range . . . . . . . . . . . . . . . . . . . 1.8V

- 0.1V Binary Steps . . . . . . . . . . . . . . . 2.1V

- 0.05V Binary Steps . . . . . . . . . . . . . 1.8V

- Does Not Require Extra Current Sensing Element,

- Constant Frequency Operation

- 200kHz Free-Running Oscillator Programmable from

PowerPC™, K6™, 6X86™ and Alpha™ Microprocessors

Uses MOSFET’s r

50kHz to over 1MHz

1% Over Line Voltage and Temperature

March 2000

Alpha™ is a trademark of Digital Equipment Corporation.

Pentium® is a registered trademark of Intel Corporation.

K6™ is a trademark of Advanced Micro Devices, Inc.

RANGE (

DS(ON)

TEMP.

0 to 70

6X86™ is a trademark of Cyrix Corporation.

File Number

20 Ld SOIC

PowerPC™ is a trademark of IBM.

PACKAGE

Intersil Corporation 2000

HIP6015

to 2.05V

to 3.5V

4421.2

M20.3

PKG.

NO.

Related parts for hip6015cb

hip6015cb Summary of contents

Page 1

... Applications • Power Supply for Pentium®, Pentium Pro, Pentium II, PowerPC™, K6™, 6X86™ and Alpha™ Microprocessors • High-Power 5V to 3.xV DC-DC Regulators • Low-Voltage Distributed Power Supplies Ordering Information PART NUMBER HIP6015CB R T OVP BOOT ...

Page 2

Typical Application PGOOD SS OVP R T VID0 VID1 VID2 D/A VID3 VID4 FB Block Diagram V SEN OCSET REFERENCE VID0 D/A VID1 VID2 CONVERTER VID3 (DAC) VID4 FB COMP HIP6015 +12V V CC OCSET MONITOR AND ...

Page 3

Absolute Maximum Ratings Supply Voltage +15V CC ...

Page 4

Electrical Speciﬁcations Recommended Operating Conditions, Unless Otherwise Noted PARAMETER POWER GOOD Upper Threshold (V /DACOUT) SEN Lower Threshold (V /DACOUT) SEN Hysteresis (V /DACOUT) SEN PGOOD Voltage Low Typical Performance Curves 1000 R PULLUP T TO +12V 100 10 R ...

Page 5

GND (Pin 11) Signal ground for the IC. All voltage levels are measured with respect to this pin. PGOOD (Pin 12) PGOOD is an open collector output used to indicate the status of the converter output voltage. This pin is ...

Page 6

Over-Current Protection The over-current function protects the converter from a shorted output by using the upper MOSFET’s on-resistance monitor the current. This method enhances the DS(ON) converter’s efﬁciency and reduces cost by eliminating a current sensing resistor. 4V ...

Page 7

Output Voltage Program The output voltage of a HIP6015 converter is programmed to discrete levels between 1.8V and 3.5V DC identiﬁcation (VID) pins program an internal voltage reference (DACOUT) with a TTL-compatible 5-bit digital-to-analog converter (DAC). The level of DACOUT ...

Page 8

V IN OSC DRIVER PWM COMPARATOR - PHASE + V OSC E REFERENCE ERROR AMP DETAILED COMPENSATION COMPONENTS COMP - + HIP6015 DACOUT FIGURE 7. VOLTAGE-MODE BUCK ...

Page 9

The bulk filter capacitor values are generally determined by the ESR (effective series resistance) and voltage rating requirements rather than actual capacitance requirements. High frequency decoupling capacitors should be ...

Page 10

MOSFET. Switching losses also contribute to the overall MOSFET power loss (see the equations below). These equations assume linear voltage-current transitions and are approximations. The gate-charge losses are dissipated by the HIP6015 ...

Page 11

HIP6015 DC-DC Converter Application Circuit Figure 11 shows an application circuit of a DC-DC Converter for an Intel Pentium Pro microprocessor. Detailed information on the circuit, including a complete Bill-of-Materials and circuit board description, can be found L 1 +5V ...

Page 12

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certiﬁcation. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with- out 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 ...

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