HIP6302EVAL1 Intersil, HIP6302EVAL1 Datasheet

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HIP6302EVAL1

Manufacturer Part Number
HIP6302EVAL1
Description
EVALUATION BOARD HIP6302
Manufacturer
Intersil
Datasheets

Specifications of HIP6302EVAL1

Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
1.7V
Current - Output
35A
Voltage - Input
5V, 12V
Regulator Topology
Buck
Board Type
Fully Populated
Utilized Ic / Part
HIP6302
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Power - Output
-
Frequency - Switching
-
COMP
VSEN
VID4
VID3
VID2
VID1
VID0
Introduction
Each generation of computer microprocessor brings
performance advances in computing power. Performance
improvements are made possible by advances in fabrication
technology that enable greater device density. Newer
processors are operating at lower voltages and higher clock
speeds both of which contribute to greater demands on the
microprocessor core voltage supply in terms of higher peak
currents and higher current-slew rates.
Intersil’s family of multi-phase DC-DC converter solutions
provide the ideal solution to supply the core-voltage needs of
present and future high-performance microprocessors.
Intersil HIP6302 and HIP6601
The HIP6302 controller IC works with two HIP6601A or
HIP6603A single-channel driver ICs or a single HIP6602A
dual-channel driver IC [3] to form a highly integrated solution
for high-current, high slew-rate applications. The HIP6302
regulates output voltage, balances load currents and
provides protective functions for two synchronous-rectified
buck-converter channels.
FB
The integrated high-bandwidth error amplifier provides
voltage regulation, while current-sense circuitry maintains
phase-current balance between the two power channels and
3
1
2
4
5
7
10
6
x 1.15
x 0.9
DAC
FIGURE 1. HIP6302 BLOCK DIAGRAM
SOFT START
AND FAULT
+
+
-
-
OVP
UV
LOGIC
+
-
LATCH
S
E/A
+
OV
15
+
PGOOD
DETECTION
CURRENT
TM
+
9
-
1
GND
RESET (POR)
GENERATOR
CLOCK AND
+
SAWTOOTH
POWER-ON
-
Application Note
16
HIP6302EVAL1 - Multiphase Power Conversion
VCC
THREE STATE
PWM
PWM
+
+
-
-
8
13
12
14
11
for AMD Athlon Processors up to 35A
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
FS/DIS
PWM1
PWM2
ISEN1
ISEN2
1-888-INTERSIL or 321-724-7143
provides feedback for droop compensation and over-current
protection. A five-bit DAC provides a digital interface to
program the 1% accurate reference and a window
comparator toggles PGOOD if the output voltage is out of
range and acts to protect the load in case of over voltage.
For more detailed descriptions of the HIP6302 functionality,
refer to the HIP6302 Data Sheet [1].
The HIP6601A is a driver IC capable of delivering up to 2A of
gate-charging current for rapidly switching both MOSFETs in
a synchronous-rectified bridge. The HIP6601A accepts a
single logic input to control both upper and lower MOSFETs.
Adaptive shoot-through protection is provided on both
switching edges to provide optimal dead time, and bootstrap
circuitry permits greater enhancement of the upper
MOSFET. For a more detailed description of the HIP6601A,
refer to the HIP6601A Data Sheet [2].
The HIP6302EVAL1 Board and Reference
Design
With the VID jumpers set to 1.7V (00110), the evaluation
board meets the output voltage and current specifications
indicated in Table 1.
Static Regulation
Transient Regulation
Over-Voltage Protection
Continuous Load Current
Over-Current Trip Level
Load-Current Transient
PVCC
PWM
VCC
TABLE 1. HIP6302EVAL1 OUTPUT PARAMETERS
February 2002
7
6
3
10k
FIGURE 2. HIP6601A BLOCK DIAGRAM
+5V
10k
CONTROL
|
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
LOGIC
Intersil (and design) is a trademark of Intersil Americas Inc.
4
GND
PROTECTION
THROUGH
1.65V
1.60V
1.90V
MIN
41A
SHOOT
-
-
Author: Matt Harris
AN9888.1
2 BOOT
1
8
5
35A/µs
1.75V
1.85V
2.00V
MAX
35A
57A
UGATE
PHASE
LGATE

Related parts for HIP6302EVAL1

HIP6302EVAL1 Summary of contents

Page 1

... SHOOT CONTROL THROUGH LOGIC PROTECTION 10k 4 GND FIGURE 2. HIP6601A BLOCK DIAGRAM TABLE 1. HIP6302EVAL1 OUTPUT PARAMETERS MIN 1.65V 1.60V 1.90V - 41A - | Intersil (and design trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2002. All Rights Reserved AN9888.1 2 BOOT 1 UGATE ...

Page 2

... Application Note AN9888 Start Up The waveforms in Figure 3 demonstrate the normal start-up sequence with the HIP6302EVAL1 connected to a 55m Ω load. After FS/EN is released, VCORE exhibits a linear ramp until reaching its 1.7V set point. The gradual increase of VCORE over approximately 5ms limits the current required from the input supply, ICC5 level that does not strain the supply ...

Page 3

... PWM1, 10V/DIV 0V PWM2, 10V/DIV 0V 20µs/DIV FIGURE 4. HIP6302EVAL1 TRANSIENT RESPONSE Figure close-up showing the core-voltage, inductor- current and PWM signals responding at the leading edge of the transient load current. The PWM signals increase to their maximum duty cycle of 75% on the first pulse following the start of the transient. The inductor currents begin to increase immediately and are carrying all of the load within 10 µ ...

Page 4

... Application Note AN9888 Summary is the switching The HIP6302EVAL1 is intended to provide a convenient platform to evaluate the performance of the HIP6302 - HIP6601A chip set in the specific implementation indicated in Table 1. The design demonstrates a favorable trade off between low cost, high efficiency, and small footprint. The following pages include schematic, bill of materials, and layout drawings to facilitate implementation of this solution ...

Page 5

Schematic 5VIN 12VIN 16 VCC C7 0.1µF 9 GND JP1 1 VID4 2 VID3 3 VID2 4 VID1 5 VID0 HIP6302 15 PGOOD FS/DIS R3 107kΩ COMP 6 R4 14.0kΩ TP7 C11 2.2nF 10kΩ 1kΩ 1kΩ RED ...

Page 6

... KPA8CTP Falco TTIG0803-127 Falco TTIB1506-478 Intersil HUF76139S3S Various 2N7002 Intersil HUF76129D3S Various Various Various Various Various Various Various Various Various Vishay WSL2512R100FB43 Vishay WSL2512R200FB43 Various Various C&K Components GT11MSCKE Jolo SPCJ-123-01 Keystone 1514-2 Tektronics 1314353-00 Intersil HIP6601ACB Intersil HIP6302CB Intersil HIP2100IB ...

Page 7

Layout Drawing - Components 7 Application Note AN9888 ...

Page 8

Layout Drawing - Top Copper 8 Application Note AN9888 ...

Page 9

Layout Drawing - Ground Plane 9 Application Note AN9888 ...

Page 10

Layout Drawing - Power Plane 10 Application Note AN9888 ...

Page 11

... 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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