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부품번호 HIP6301 기능
기능 Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller
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HIP6301 데이터시트, 핀배열, 회로
Data Sheet
HIP6301
March 2000 File Number 4765.1
Microprocessor CORE Voltage Regulator
Multi-Phase Buck PWM Controller
The HIP6301 multi-phase PWM control IC together with its
companion gate drivers, the HIP6601, HIP6602 or HIP6603
and internal MOSFETs provides a precision voltage
regulation system for advanced microprocessors.
Multiphase power conversion is a marked departure from
earlier single phase converter configurations previously
employed to satisfy the ever increasing current demands of
modern microprocessors. Multi-phase convertors, by
distributing the power and load current results in smaller and
lower cost transistors with fewer input and output capacitors.
These reductions accrue from the higher effective
conversion frequency with higher frequency ripple current
due to the phase interleaving process of this topology. For
example, a three phase convertor operating at 350kHz will
have a ripple frequency of 1.05MHz. Moreover, greater
convertor bandwidth of this design results in faster response
to load transients.
Outstanding features of this controller IC include
programmable VID codes from the microprocessor that
range from 1.100V to 1.850V with a system accuracy of
±1%. Pull up currents on these VID pins eliminates the need
for external pull up resistors. In addition “droop”
compensation, used to reduce the overshoot or undershoot
of the CORE voltage, is easily programmed with a single
resistor.
Another feature of this controller IC is the PGOOD monitor
circuit which is held low until the CORE voltage increases,
during its Soft-Start sequence, to within 10% of the
programmed voltage. Over-voltage, 15% above programmed
CORE voltage, results in the converter shutting down and
turning the lower MOSFETs ON to clamp and protect the
microprocessor. Under voltage is also detected and results
in PGOOD low if the CORE voltage falls 10% below the
programmed level. Over-current protection reduces the
regulator current to less than 25% of the programmed trip
value. These features provide monitoring and protection for
the microprocessor and power system.
Features
• Multi-Phase Power Conversion
• Precision Channel Current Sharing
- Loss Less Current Sampling - Uses rDS(ON)
• Precision CORE Voltage Regulation
- ±1% System Accuracy Over Temperature
• Microprocessor Voltage Identification Input
- 5-Bit VID Input
- 1.100V to 1.850V in 25mV Steps
- Programmable “Droop” Voltage
• Fast Transient Recovery Time
• Over Current Protection
• Automatic Selection of 2, 3, or 4 Phase Operation
• High Ripple Frequency, (Channel Frequency) Times
Number Channels . . . . . . . . . . . . . . . . . 100kHz to 6MHz
Ordering Information
PART NUMBER TEMP. (oC) PACKAGE PKG. NO.
HIP6301CB
0 to 70 20 Ld SOIC M20.3
HIP6301CB-T
20 Ld SOIC Tape and Reel
HIP6301EVAL1
Evaluation Platform
Pinout
HIP6301 (SOIC)
TOP VIEW
VID4 1
VID3 2
VID2 3
VID1 4
VID0 5
COMP 6
FB 7
FS/DIS 8
GND 9
VSEN 10
20 VCC
19 PGOOD
18 PWM4
17 ISEN4
16 ISEN1
15 PWM1
14 PWM2
13 ISEN2
12 ISEN3
11 PWM3
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 2000




HIP6301 pdf, 반도체, 판매, 대치품
HIP6301
Typical Application - 2 Phase Converter Using HIP6601 Gate Drivers
+5V
PGOOD
VID4
VID3
VID2
VID1
VID0
FB
VSEN
COMP
VCC
PWM4
PWM3
PWM2
PWM1
MAIN
CONTROL
HIP6301
FS/DIS
GND
ISEN4
ISEN3
ISEN2
ISEN1
NC
NC
+12V
PVCC
VCC
BOOT
UGATE
PHASE
PWM
DRIVER
HIP6601
LGATE
GND
+12V
PVCC
BOOT
UGATE
VCC
PWM
PHASE
DRIVER
HIP6601
LGATE
GND
VIN = +5V
VIN = +5V
+VCORE
4

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HIP6301 전자부품, 판매, 대치품
HIP6301
RIN
FB
ERROR
AMPLIFIER
-
+
CORRECTION
+
-
HIP6303
COMPARATOR
- PWM
+ CIRCUIT
PROGRAMMABLE
REFERENCE
DAC
+
-
I AVERAGE
-
+
CURRENT
SENSING
CURRENT
AVERAGING
CURRENT
SENSING
-
+
CORRECTION
COMPARATOR
+
PWM
- CIRCUIT
VIN
PWM1
HIP6601
Q1 L01
IL1
Q2
PHASE
ISEN1
RISEN1
ISEN2
RISEN2
VIN
PHASE
PWM2
HIP6601
Q3
Q4
L02
IL2
VCORE
COUT RLOAD
FIGURE 1. SIMPLIFIED BLOCK DIAGRAM OF THE HIP6301 VOLTAGE AND CURRENT CONTROL LOOPS FOR A TWO POWER
CHANNEL REGULATOR
Operation
Figure 1 shows a simplified diagram of the voltage regulation
and current control loops. Both voltage and current feedback
are used to precisely regulate voltage and tightly control
output currents, IL1 and IL2, of the two power channels. The
voltage loop comprises the Error Amplifier, Comparators,
gate drivers and output MOSFETs. The Error Amplifier is
essentially connected as a voltage follower that has as an
input, the Programmable Reference DAC and an output that
is the CORE voltage.
Voltage Loop
Feedback from the CORE voltage is applied via resistor RIN
to the inverting input of the Error Amplifier. This signal can
drive the Error Amplifier output either high or low, depending
upon the CORE voltage. Low CORE voltage makes the
amplifier output move towards a higher output voltage level.
Amplifier output voltage is applied to the positive inputs of
the Comparators via the Correction summing networks. Out-
of-phase sawtooth signals are applied to the two
Comparators inverting inputs. Increasing Error Amplifier
voltage results in increased Comparator output duty cycle.
This increased duty cycle signal is passed through the PWM
CIRCUIT with no phase reversal and on to the HIP6601,
again with no phase reversal for gate drive to the upper
MOSFETs, Q1 and Q3. Increased duty cycle or ON time for
the MOSFET transistors results in increased output voltage
to compensate for the low output voltage sensed.
Current Loop
The current control loop works in a similar fashion to the
voltage control loop, but with current control information
applied individually to each channel’s Comparator. The
information used for this control is the voltage that is
developed across rDS(ON) of each lower MOSFET, Q2 and
Q4, when they are conducting. A single resistor converts
and scales the voltage across the MOSFETs to a current
that is applied to the Current Sensing circuit within the
HIP6301. Output from these sensing circuits is applied to the
current averaging circuit. Each PWM channel receives the
difference current signal from the summing circuit that
compares the average sensed current to the individual
channel current. When a power channel’s current is greater
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