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HIP6005BCB の電気的特性と機能

HIP6005BCBのメーカーはIntersil Corporationです、この部品の機能は「Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor」です。


製品の詳細 ( Datasheet PDF )

部品番号 HIP6005BCB
部品説明 Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor
メーカ Intersil Corporation
ロゴ Intersil Corporation ロゴ 




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HIP6005BCB Datasheet, HIP6005BCB PDF,ピン配置, 機能
Data Sheet
HIP6005B
February 1999 File Number 4568.2
Buck Pulse-Width Modulator (PWM)
Controller and Output Voltage Monitor
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.
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)
that adjusts the output voltage from 1.3VDC to 2.05VDC in
0.05V increments and from 2.1VDC to 3.5VDC in 0.1V steps.
The precision reference and voltage-mode regulator hold the
selected output voltage to within ±1% over temperature and
line voltage variations.
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%.
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
rDS(ON) of the upper MOSFET which eliminates the need for
a current sensing resistor.
Ordering Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
PKG.
NO.
HIP6005BCB
0 to 70 20 Ld SOIC
M20.3
HIP6005BCV
0 to 70 20 Ld TSSOP
M20.173
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.
Features
• Drives N-Channel MOSFET
• 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
• Excellent Output Voltage Regulation
- ±1% Over Line Voltage and Temperature
• TTL-Compatible 5-Bit Digital-to-Analog Output Voltage
Selection
- Wide Range . . . . . . . . . . . . . . . . . . . 1.3VDC to 3.5VDC
- 0.1V Binary Steps . . . . . . . . . . . . . . 2.1VDC to 3.5VDC
- 0.05V Binary Steps . . . . . . . . . . . . 1.3VDC to 2.05VDC
• Power-Good Output Voltage Monitor
• Over-Voltage and Over-Current Fault Monitors
- Does Not Require Extra Current Sensing Element,
Uses MOSFET’s rDS(ON)
• Small Converter Size
- Constant Frequency Operation
- 200kHz Free-Running Oscillator Programmable from
50kHz to over 1MHz
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
Pinout
HIP6005B
(SOIC, TSSOP)
TOP VIEW
VSEN 1
OCSET 2
SS 3
VID0 4
VID1 5
VID2 6
VID3 7
VID4 8
COMP 9
FB 10
20 RT
19 OVP
18 VCC
17 NC
16 NC
15 BOOT
14 UGATE
13 PHASE
12 PGOOD
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.
2-110
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

1 Page





HIP6005BCB pdf, ピン配列
HIP6005B
Absolute Maximum Ratings
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +15V
Boot Voltage, VBOOT - VPHASE. . . . . . . . . . . . . . . . . . . . . . . . +15V
Input, Output or I/O Voltage . . . . . . . . . . . .GND -0.3V to VCC +0.3V
ESD Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Class 2
Operating Conditions
Supply Voltage, VCC . . . . . .
Ambient Temperature Range
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+12V ±10%
0oC to 70oC
Thermal Information
Thermal Resistance (Typical, Note 1)
θJA (oC/W)
SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SOIC Package (with 3in2 of Copper) . . . . . . . . . . . .
110
86
TSSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . .
140
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC
(Lead Tips Only)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θJA is measured with the component mounted on an evaluation PC board in free air.
Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted
PARAMETER
SYMBOL
TEST CONDITIONS
MIN TYP MAX UNITS
VCC SUPPLY CURRENT
Nominal Supply
POWER-ON RESET
ICC UGATE Open
-5-
mA
Rising VCC Threshold
Falling VCC Threshold
Rising VOCSET Threshold
OSCILLATOR
VOCSET = 4.5V
VOCSET = 4.5V
- - 10.4
8.2 -
-
- 1.26 -
V
V
V
Free Running Frequency
RT = Open
185 200 215
kHz
Total Variation
Ramp Amplitude
REFERENCE AND DAC
VOSC
6k< RT to GND < 200k
RT = Open
-15 - +15
%
- 1.9 -
VP-P
DAC (VID0-VID4) Input Low Voltage
- - 0.8 V
DAC (VID0-VID4) Input High Voltage
2.0 -
-
V
DACOUT Voltage Accuracy
-1.0 - +1.0
%
ERROR AMPLIFIER
DC Gain
- 88 -
dB
Gain-Bandwidth Product
GBW
- 15 -
MHz
Slew Rate
SR COMP = 10pF
- 6 - V/µs
GATE DRIVER
Upper Gate Source
Upper Gate Sink
PROTECTION
IUGATE
RUGATE
VBOOT - VPHASE = 12V, VUGATE = 6V
350 500
- 5.5
-
10
mA
W
Over-Voltage Trip (VSEN/DACOUT)
OCSET Current Source
OVP Sourcing Current
Soft Start Current
POWER GOOD
IOCSET
IOVP
ISS
VOCSET = 4.5V
VSEN = 5.5V; VOVP = 0V
- 115 120
170 200 230
60 -
-
- 10 -
%
µA
mA
µA
Upper Threshold (VSEN/DACOUT)
Lower Threshold (VSEN/DACOUT)
Hysteresis (VSEN/DACOUT)
PGOOD Voltage Low
VPGOOD
VSEN Rising
VSEN Falling
Upper and Lower Threshold
IPGOOD = -5mA
106 - 111
89 - 94
-2-
- 0.5 -
%
%
%
V
2-112


3Pages


HIP6005BCB 電子部品, 半導体
HIP6005B
The over-current function cycles the soft-start function in a
hiccup mode to provide fault protection. A resistor (ROCSET)
programs the over-current trip level. An internal 200µA current
sink develops a voltage across ROCSET that is referenced to
VIN. When the voltage across the upper MOSFET (also
referenced to VIN) exceeds the voltage across ROCSET, the
over-current function initiates a soft-start sequence. The soft-
start function discharges CSS with a 10µA current sink and
inhibits PWM operation. The soft-start function recharges
CSS, and PWM operation resumes with the error amplifier
clamped to the SS voltage. Should an overload occur while
recharging CSS, the soft start function inhibits PWM operation
while fully charging CSS to 4V to complete its cycle. Figure 4
shows this operation with an overload condition. Note that the
inductor current increases to over 15A during the CSS
charging interval and causes an over-current trip. The
converter dissipates very little power with this method. The
measured input power for the conditions of Figure 4 is 2.5W.
The over-current function will trip at a peak inductor current
(IPEAK) determined by:
IPEAK = I--O-----C----S----E-r--D-T---S--x--(--O-R----N-O---)--C----S----E----T-
where IOCSET is the internal OCSET current source (200µA
typical). The OC trip point varies mainly due to the
MOSFET’s rDS(ON) variations. To avoid over-current tripping
in the normal operating load range, find the ROCSET resistor
from the equation above with:
1. The maximum rDS(ON) at the highest junction temperature.
2. The minimum IOCSET from the specification table.
3. Determine IPEAK for IPEAK > IOUT(MAX) + (∆I) ⁄ 2 ,
where I is the output inductor ripple current.
For an equation for the ripple current see the section under
component guidelines titled “Output Inductor Selection.”
A small ceramic capacitor should be placed in parallel with
ROCSET to smooth the voltage across ROCSET in the
presence of switching noise on the input voltage.
Output Voltage Program
The output voltage of a HIP6005B converter is programmed
to discrete levels between 1.8VDC and 3.5VDC. The voltage
identification (VID) pins program an internal voltage
reference (DACOUT) with a TTL-compatible, 5-bit
digital-to-analog converter (DAC). The level of DACOUT also
sets the PGOOD and OVP thresholds. Table 1 specifies the
DACOUT voltage for the 32 different combinations of
connections on the VID pins. The output voltage should not
be adjusted while the converter is delivering power. Remove
input power before changing the output voltage. Adjusting
the output voltage during operation could toggle the PGOOD
signal and exercise the overvoltage protection.
‘11111’ VID pin combination resulting in a 0V output setting
activates the Power-On Reset function and disables the gate
drive circuitry. For this specific VID combination, though,
PGOOD asserts a high level. This unusual behavior has been
implemented in order to allow for operation in
dual-microprocessor systems where AND-ing of the PGOOD
signals from two individual power converters is implemented.
Application Guidelines
Layout Considerations
As in any high frequency switching converter, layout is very
important. Switching current from one power device to another
can generate voltage transients across the impedances of the
interconnecting bond wires and circuit traces. These
interconnecting impedances should be minimized by using
wide, short printed circuit traces. The critical components
should be located as close together as possible using ground
plane construction or single point grounding.
TABLE 1. OUTPUT VOLTAGE PROGRAM
VID4
0
0
0
PIN NAME
VID3 VID2 VID1
111
111
110
VID0
1
0
1
NOMINAL OUTPUT
VOLTAGE DACOUT
1.30
1.35
1.40
VID4
1
1
1
PIN NAME
VID3 VID2 VID1
111
111
110
0 1 1 0 0 1.45 1 1 1 0
0 1 0 1 1 1.50 1 1 0 1
0 1 0 1 0 1.55 1 1 0 1
0 1 0 0 1 1.60 1 1 0 0
0 1 0 0 0 1.65 1 1 0 0
0 0 1 1 1 1.70 1 0 1 1
0 0 1 1 0 1.75 1 0 1 1
0 0 1 0 1 1.80 1 0 1 0
0 0 1 0 0 1.85 1 0 1 0
0 0 0 1 1 1.90 1 0 0 1
0 0 0 1 0 1.95 1 0 0 1
0 0 0 0 1 2.00 1 0 0 0
0 0 0 0 0 2.05 1 0 0 0
NOTE: 0 = connected to GND or VSS, 1 = connected to VDD through pull-up resistors.
VID0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
NOMINAL OUTPUT
VOLTAGE DACOUT
0
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
2-115

6 Page



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部品番号部品説明メーカ
HIP6005BCB

Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor

Intersil Corporation
Intersil Corporation
HIP6005BCV

Buck Pulse-Width Modulator (PWM) Controller and Output Voltage Monitor

Intersil Corporation
Intersil Corporation


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