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HIP6005B

更新时间： 2024-11-18 22:33:43
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英特矽尔 - INTERSIL 监视器控制器
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11页 154K
描述
Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor

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HIP6005B 数据手册

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HIP6005B  
Data Sheet  
February 1999  
File Number 4568.2  
Buck Pulse-Width Modulator (PWM)  
Controller and Output Voltage Monitor  
Features  
• Drives N-Channel MOSFET  
The HIP6005B 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  
HIP6005B integrates all of the control, output adjustment,  
monitoring and protection functions into a single package.  
• Operates from +5V or +12V Input  
• Simple Single-Loop Control Design  
- Voltage-Mode PWM Control  
• Fast Transient Response  
- High-Bandwidth Error Amplifier  
- Full 0% to 100% Duty Ratio  
The output voltage of the converter is easily adjusted and  
precisely regulated. The HIP6005B includes a fully  
TTL-compatible 5-input digital-to-analog converter (DAC)  
• Excellent Output Voltage Regulation  
- ±1% Over Line Voltage and Temperature  
• TTL-Compatible 5-Bit Digital-to-Analog Output Voltage  
Selection  
- Wide Range . . . . . . . . . . . . . . . . . . . 1.3V  
- 0.1V Binary Steps . . . . . . . . . . . . . . 2.1V  
that adjusts the output voltage from 1.3V  
to 2.05V  
in  
in 0.1V steps.  
DC  
DC  
0.05V increments and from 2.1V  
DC  
to 3.5V  
DC  
to 3.5V  
to 3.5V  
to 2.05V  
DC  
DC  
DC  
DC  
DC  
The precision reference and voltage-mode regulator hold the  
selected output voltage to within ±1% over temperature and  
line voltage variations.  
- 0.05V Binary Steps . . . . . . . . . . . . 1.3V  
DC  
• Power-Good Output Voltage Monitor  
The HIP6005B 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/µs slew rate which  
enables high converter bandwidth for fast transient  
performance. The resulting PWM duty ratio ranges from 0% to  
100%.  
• Over-Voltage and Over-Current Fault Monitors  
- Does Not Require Extra Current Sensing Element,  
Uses MOSFET’s r  
DS(ON)  
• Small Converter Size  
- Constant Frequency Operation  
- 200kHz Free-Running Oscillator Programmable from  
50kHz to over 1MHz  
Applications  
The HIP6005B 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 HIP6005B  
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 HIP6005B monitors the current by using the  
• 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  
•
•
Pinout  
HIP6005B  
(SOIC, TSSOP)  
TOP VIEW  
r
of the upper MOSFET which eliminates the need for  
DS(ON)  
a current sensing resistor.  
1
2
3
4
5
6
7
8
9
VSEN  
OCSET  
SS  
20  
RT  
Ordering Information  
OVP  
19  
TEMP.  
PKG.  
NO.  
18 VCC  
17 NC  
16 NC  
o
PART NUMBER RANGE ( C)  
PACKAGE  
20 Ld SOIC  
20 Ld TSSOP  
VID0  
HIP6005BCB  
HIP6005BCV  
0 to 70  
0 to 70  
M20.3  
VID1  
VID2  
BOOT  
15  
M20.173  
VID3  
14 UGATE  
13 PHASE  
NOTE: When ordering, use the entire part number. Add the suffix T  
to obtain the TSSOP variant in tape and reel, e.g., HIP6005BCV-T.  
VID4  
12  
COMP  
PGOOD  
FB 10  
11 GND  
6X86™ is a trademark of Cyrix Corporation.  
Alpha Micro™ is a trademark of Digital Computer Equipment Corporation  
K6™ is a trademark of Advanced Micro Devices.  
Pentium® is a registered trademark of Intel Corporation.  
PowerPC™ is a registered trademark of IBM.  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999  
2-110  
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