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參數(shù)資料
| 型號(hào)： | ISL6244HR-T |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Test Probe; Range:-32deg to 500degF RoHS Compliant: NA |
| 中文描述： | SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封裝： | 5 X 5 MM, PLASTIC, MO-220-VHHD, QFN-32 |
| 文件頁數(shù)： | 9/25頁 |
| 文件大?。?/td> | 845K |
| 代理商： | ISL6244HR-T |
9
FN9106.3
December 28, 2004
Theory of Operation
Multi-Phase Power Conversion
Microprocessor load current profiles have changed to the
point where the multi-phase power conversion advantage is
pronounced. The technical challenges associated with
producing a single-phase converter which is both cost-
effective and thermally viable have forced a change to the
cost-saving approach of multi-phase. The ISL6244 controller
helps reduce the complexity of implementation by integrating
vital functions and requiring minimal output components.
The block diagram in Figure 12 provides a top level view of
multi-phase power conversion using the ISL6244 controller.
diff
VSEN
IOUT
1/N
CURRENT
SENSE
&
PHASE
DETECT
I3
I2
I1
+
2.2V
OV
85
μ
A
+
+
-
N PHASES
+
I4
+
+
-
+
+
x 0.2
100
μ
A
OFS
VID4
VID3
VID2
VID1
VID0
FB
DYNAMIC
VID
DAC
e/a
VDIFF
RGND
COMP
ISEN1
ISEN2
ISEN3
PWM1
PWM2
PWM3
VFF
EN
1.23V
FS
PGOOD
VCC
POR
AND
SOFT START
OSCILLATOR
AND
SAWTOOTH
+
+
-
+
+
-
6V
PWM4
ISEN4
UV
+
-
GND
OC
AVERAGE
FIGURE 12. BLOCK DIAGRAM
3
ISL6244
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL6244HRZ | Multi-Phase PWM Controller |
| ISL6244HRZ-T | Multi-Phase PWM Controller |
| ISL6244 | Multi-Phase PWM Controller(多相PWM控制器) |
| ISL6244CRZ | Octal D-Type Transparent Latches With 3-State Outputs 20-PDIP -40 to 85 |
| ISL6244CRZ-T | Octal D-Type Transparent Latches With 3-State Outputs 20-SO -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ISL6244HRZ | 功能描述:電流型 PWM 控制器 VER OF ISL6244HR RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL6244HRZ-T | 功能描述:電流型 PWM 控制器 VER OF ISL6244HR-T RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時(shí)間: 下降時(shí)間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14 |
| ISL6246C WAF | 制造商:Intersil Corporation 功能描述: |
| ISL6247 6248 WAF | 制造商:Intersil Corporation 功能描述: |
| ISL6247ACR-T | 制造商:Rochester Electronics LLC 功能描述:- Tape and Reel 制造商:Intersil Corporation 功能描述: |
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