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参数资料
| 型号： | ISL6551ABZ-T |
| 厂商： | Intersil |
| 文件页数： | 17/26页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR FLYBACK PWM 28-SOIC |
| 标准包装： | 1,000 |
| PWM 型： | 电流模式 |
| 输出数： | 6 |
| 频率 - 最大： | 1MHz |
| 占空比： | 50% |
| 电源电压： | 10.8 V ~ 13.2 V |
| 降压： | 无 |
| 升压： | 无 |
| 回扫： | 是 |
| 反相： | 无 |
| 倍增器： | 无 |
| 除法器： | 无 |
| Cuk： | 无 |
| 隔离： | 无 |
| 工作温度： | -40°C ~ 105°C |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 包装： | 带卷 (TR) |
ISL6551
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
BIASES
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.
PRIMARY BIAS
SECONDARY BIAS
V IN
INPUT
FILTER
PRIMARY
FETs
MAIN
TRANSFORMER
RECTIFIERS
OUTPUT
FILTER
V OUT
CURRENT
SENSE
PRIMARY FET
DRIVERS
ISL6551
CONTROLLER
SUPERVISOR
CIRCUITS
SECONDARY
DRIVERS
FEEDBACK
FIGURE 13. BLOCK DIAGRAM OF A POWER SUPPLY SYSTEM USING ISL6551 CONTROLLER
System Blocks Chart
Input Filters
General - Input capacitors are required to absorb the
V IN
V IN F
power switch (FET) pulsating currents.
EMI - For good EMI performance, the ripple current that is
C IN
FIGURE 13A. GENERAL
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
V IN
L IN
V IN F
common-mode choke might be required to filter the
common-mode noises.
C IN
FIGURE 13B. EMI
17
FN9066.5
January 3, 2006
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ISL6551AR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
| ISL6551AR-T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Intersil Corporation 功能描述: |
| ISL6551ARZ | 功能描述:IC REG CTRLR FLYBACK PWM 28-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL6551ARZ-T | 功能描述:IC REG CTRLR FLYBACK PWM 28-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:275kHz 占空比:50% 电源电压:18 V ~ 110 V 降压:无 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:是 工作温度:-40°C ~ 85°C 封装/外壳:8-SOIC（0.154"，3.90mm 宽） 包装:带卷 (TR) |
| ISL6551EVAL1 | 功能描述:EVALUATION BOARD ISL6551 RoHS:否 类别:编程器，开发系统 >> 评估板 - DC/DC 与 AC/DC（离线）SMPS 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:True Shutdown™ 主要目的:DC/DC，步升 输出及类型:1，非隔离 功率 - 输出:- 输出电压:- 电流 - 输出:1A 输入电压:2.5 V ~ 5.5 V 稳压器拓扑结构:升压 频率 - 开关:3MHz 板类型:完全填充 已供物品:板 已用 IC / 零件:MAX8969 |
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