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參數(shù)資料
| 型號(hào)： | ISL6551ARZ |
| 廠商： | INTERSIL CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Wide-Range Power-Supply Controller 8-PDIP -20 to 85 |
| 中文描述： | DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC28 |
| 封裝： | 6 X 6 MM, ROHS COMPLIANT, PLASTIC, MO-220VJJC, QFN-28 |
| 文件頁數(shù)： | 17/26頁 |
| 文件大?。?/td> | 619K |
| 代理商： | ISL6551ARZ |
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17
FN9066.4
July 8, 2005
Figure 13 shows the block diagram of a power supply
system employing the ISL6551 full bridge controller. The
ISL6551 not only is a full bridge PWM controller but also can
be used as a push-pull PWM controller. Users can design a
power supply by selecting appropriate blocks in the “
System
Blocks Chart
” based on the power system requirements.
Figures 13A, 14A, 15A, 16A, 17A, 18A, 19, 20A, 21, 22A,
and 24A have been used in the 200W telecom power supply
reference design, which can be found in the Application Note
AN1002. To meet the specifications of the power supply,
minor modifications of each block are required. To take full
advantage of the integrated features of the ISL6551,
“secondary side control” is recommended.
System Blocks Chart
Input Filters
General -
Input capacitors are required to absorb the
power switch (FET) pulsating currents.
EMI -
For good EMI performance, the ripple current that is
reflected back to the input line can be reduced by an input
L-C filter, which filters the differential-mode noises and
operates at two times the switching frequency, i.e., the
clock frequency (Fclock). In some cases, an additional
common-mode choke might be required to filter the
common-mode noises.
FIGURE 13. BLOCK DIAGRAM OF A POWER SUPPLY SYSTEM USING ISL6551 CONTROLLER
BIASES
RECTIFIERS
OUTPUT
FILTER
V
OUT
FEEDBACK
ISL6551
CONTROLLER
PRIMARY
FETs
PRIMARY BIAS
SECONDARY BIAS
CURRENT
SENSE
V
IN
INPUT
FILTER
SUPERVISOR
CIRCUITS
MAIN
TRANSFORMER
DRIVERS
SECONDARY
PRIMARY FET
DRIVERS
FIGURE 13A. GENERAL
FIGURE 13B. EMI
V
IN
F
V
IN
C
IN
V
IN
V
IN
F
L
IN
C
IN
ISL6551
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL6551EVAL1 | Wide-Range Power-Supply Controller 8-PDIP -20 to 85 |
| ISL6551IR | Wide-Range Power-Supply Controller 8-SO -20 to 85 |
| ISL6551IR-T | ZVS Full Bridge PWM Controller |
| ISL6552CBZ | Microprocessor CORE Voltage Regulator Multi-Phase Buck PWM Controller |
| ISL6552CRZ | 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 |
|---|---|
| ISL6551ARZ-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
| ISL6551EVAL1 | 功能描述:EVALUATION BOARD ISL6551 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評(píng)估板 - DC/DC 與 AC/DC（離線）SMPS 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:True Shutdown™ 主要目的:DC/DC，步升 輸出及類型:1，非隔離 功率 - 輸出:- 輸出電壓:- 電流 - 輸出:1A 輸入電壓:2.5 V ~ 5.5 V 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):升壓 頻率 - 開關(guān):3MHz 板類型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
| ISL6551IB | 功能描述:電流型 PWM 控制器 FULL BRIDGE 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 |
| ISL6551IB-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-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(biāo)準(zhǔn)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) |
| ISL6551IBZ | 功能描述:IC REG CTRLR FLYBACK PWM 28-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:275kHz 占空比:50% 電源電壓:18 V ~ 110 V 降壓:無 升壓:無 回掃:無 反相:無 倍增器:無 除法器:無 Cuk:無 隔離:是 工作溫度:-40°C ~ 85°C 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 包裝:帶卷 (TR) |
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