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參數(shù)資料
| 型號： | HIP6301CBZ-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| 中文描述： | SWITCHING CONTROLLER, 1500 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封裝： | PLASTIC, LEAD FREE, MS-013-AC, SOIC-20 |
| 文件頁數(shù)： | 9/17頁 |
| 文件大?。?/td> | 406K |
| 代理商： | HIP6301CBZ-T |
9
FN4765.6
December 27, 2004
For the first 32 PWM switching cycles, the DAC output
remains inhibited and the PWM outputs remain three stated.
From the 33rd cycle and for another, approximately 150
cycles the PWM output remains low, clamping the lower
output MOSFETs to ground, see Figure 3. The time
variability is due to the Error Amplifier, Sawtooth Generator
and Comparators moving into their active regions. After this
short interval, the PWM outputs are enabled and increment
the PWM pulse width from zero duty cycle to operational
pulse width, thus allowing the output voltage to slowly reach
the CORE voltage. The CORE voltage will reach its
programmed value before the 2048 cycles, but the PGOOD
output will not be initiated until the 2048th PWM switching
cycle.
The Soft-Start time or delay time, DT = 2048/F
SW
. For an
oscillator frequency, F
SW
, of 200kHz, the first 32 cycles or
160
μ
s, the PWM outputs are held in a three state level as
explained above. After this period and a short interval
described above, the PWM outputs are initiated and the
voltage rises in 10.08ms, for a total delay time DT of
10.24ms.
Figure 3 shows the start-up sequence as initiated by a fast
rising 5V supply, V
CC,
applied to the HIP6301. Note the
short rise to the three state level in PWM 1 output during first
32 PWM cycles.
Figure 4 shows the waveforms when the regulator is
operating at 200kHz. Note that the Soft-Start duration is a
function of the Channel Frequency as explained previously.
Also note the pulses on the COMP terminal. These pulses
are the current correction signal feeding into the comparator
input (see the
Block Diagram
on page 2).
Figure 5 shows the regulator operating from an ATX supply.
In this figure, note the slight rise in PGOOD as the 5V supply
rises. The PGOOD output stage is an open drain NMOS
transistor. On rising V
CC
, the pull-up resistor begins to move
PGOOD output slightly positive before the NMOS transistor
pulls “down”, generating the slight rise in PGOOD output
voltage.
Note that Figure 5 shows the 12V gate driver voltage
available before the 5V supply to the HIP6301 has reached
its threshold level. If conditions were reversed and the 5V
supply was to rise first, the start-up sequence would be
different. In this case the HIP6303 will sense an overcurrent
condition due to charging the output capacitors. The supply
will then restart and go through the normal Soft-Start cycle.
PWM 1
OUTPUT
PGOOD
V
CORE
5V
V
CC
V
IN
= 12V
DELAY TIME
FIGURE 3. START-UP OF 4 PHASE SYSTEM OPERATING AT
500kHz
PGOOD
V
CORE
5V
V
CC
V COMP
V
IN
= 12V
DELAY TIME
FIGURE 4. START-UP OF 4 PHASE SYSTEM OPERATING AT
200kHz
12V ATX
SUPPLY
PGOOD
5 V ATX
SUPPLY
V
CORE
ATX SUPPLY ACTIVATED BY ATX “PS-ON PIN”
V
IN
= 5V, CORE LOAD CURRENT = 31A
FREQUENCY 200kHz
FIGURE 5. SUPPLY POWERED BY ATX SUPPLY
HIP6301
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HIP6301EVAL2 | Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| HIP6301 | Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller(微處理器核心電壓穩(wěn)壓多相沖跳脈寬調(diào)制控制器) |
| HIP6301CB | Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| HIP6301CB-T | Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| HIP6301EVAL1 | Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HIP6301EVAL1 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| HIP6301EVAL2 | 功能描述:電源管理IC開發(fā)工具 HIP6301 EVAL BRD RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| HIP6301V | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| HIP6301VCB | 功能描述:IC REG CTRLR BUCK PWM 20-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
| HIP6301VCB-T | 功能描述:IC REG CTRLR BUCK PWM 20-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標準包裝:4,000 系列:- PWM 型:電壓模式 輸出數(shù):1 頻率 - 最大:1.5MHz 占空比:66.7% 電源電壓:4.75 V ~ 5.25 V 降壓:是 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:無 工作溫度:-40°C ~ 85°C 封裝/外殼:40-VFQFN 裸露焊盤 包裝:帶卷 (TR) |
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