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ISL6551IR

更新时间： 2024-11-29 20:21:15
品牌 Logo 应用领域
瑞萨 - RENESAS 开关
页数 文件大小 规格书
27页 1323K
描述
DUAL SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, PQCC28, 6 X 6 MM, PLASTIC, MO-220VJJC, QFN-28

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ISL6551IR 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QFN包装说明：6 X 6 MM, PLASTIC, MO-220VJJC, QFN-28
针数：28Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.17模拟集成电路 - 其他类型：DUAL SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：13.2 V最小输入电压：10.8 V
标称输入电压：12 VJESD-30 代码：S-PQCC-N28
JESD-609代码：e0长度：6 mm
湿度敏感等级：3功能数量：1
端子数量：28最高工作温度：85 °C
最低工作温度：封装主体材料：PLASTIC/EPOXY
封装代码：HVQCCN封装等效代码：LCC28,.24SQ,25
封装形状：SQUARE封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
峰值回流温度（摄氏度）：240认证状态：Not Qualified
座面最大高度：1 mm子类别：Switching Regulator or Controllers
表面贴装：YES切换器配置：PUSH-PULL
最大切换频率：1000 kHz温度等级：OTHER
端子面层：Tin/Lead (Sn/Pb)端子形式：NO LEAD
端子节距：0.65 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：6 mm
Base Number Matches：1

ISL6551IR 数据手册

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DATASHEET  
ISL6551  
ZVS Full Bridge PWM Controller  
FN9066  
Rev 7.00  
Oct 28, 2015  
The ISL6551 is a zero voltage switching (ZVS) full-bridge PWM  
controller designed for isolated power systems. This part  
implements a unique control algorithm for fixed-frequency ZVS  
current mode control, yielding high efficiency with low EMI. The  
two lower drivers are PWM controlled on the trailing edge and  
employ resonant delay while the two upper drivers are driven  
at a fixed 50% duty cycle.  
Features  
• High speed PWM (up to 1MHz) for ZVS full bridge control  
• Current mode control compatible  
• High current high-side and low-side totem-pole drivers  
• Adjustable resonant delay for ZVS  
• 10MHz error amplifier bandwidth  
• Programmable soft-start  
This IC integrates many features in 28 Ld SOIC package to  
yield a complete and sophisticated power supply solution.  
Control features include programmable soft-start for  
controlled start-up, programmable resonant delay for zero  
voltage switching, programmable leading edge blanking to  
prevent false triggering of the PWM comparator due to the  
leading edge spike of the current ramp, adjustable ramp for  
slope compensation, drive signals for implementing  
• Precision bandgap reference  
• Latching shutdown input  
• Non-latching enable input  
• Adjustable leading edge blanking  
• Adjustable dead time control  
synchronous rectification in high output current, ultra high  
efficiency applications and current share support for  
• Adjustable ramp for slope compensation  
• Fast short-circuit protection (hiccup mode)  
• Adjustable cycle-by-cycle peak current limiting  
• Drive signals to implement synchronous rectification  
• VDD undervoltage lockout  
paralleling up to 10 units, which helps achieve higher reliability  
and availability as well as better thermal management.  
Protective features include adjustable cycle-by-cycle peak  
current limiting for overcurrent protection, fast short-circuit  
protection (in hiccup mode), a latching shutdown input to turn  
off the IC completely on output overvoltage conditions or other  
extreme and undesirable faults, a non-latching enable input to  
accept an enable command when monitoring the input voltage  
• Current share support  
• ±5% “in regulation” indication  
and thermal condition of a converter and V undervoltage  
DD  
• Pb-free (RoHS compliant)  
lockout with hysteresis. Additionally, the ISL6551 includes  
high current high-side and low-side totem-pole drivers to avoid  
additional external drivers for moderate gate capacitance (up  
to 1.6nF at 1MHz) applications, an uncommitted high  
bandwidth (10MHz) error amplifier for feedback loop  
compensation, a precision bandgap reference with ±1.5%  
(ISL6551AB) or ±1% (ISL6551IB) tolerance across  
recommended operating conditions and a ±5% “in regulation”  
monitor.  
Applications  
• Full-bridge and push-pull converters  
• Power supplies for off-line and Telecom/Datacom  
• Power supplies for high end microprocessors and servers  
Related Literature  
• AN1002, 200W, 470kHz, Telecom Power Supply Using  
ISL6551 Full-Bridge Controller and ISL6550 Supervisor and  
Monitor.  
In addition to the ISL6551, other external elements such as  
transformers, pulse transformers, capacitors, inductors and  
Schottky or synchronous rectifiers are required for a complete  
power supply solution. A detailed 200W telecom power supply  
reference design using the ISL6551 with companion Intersil  
ICs, Supervisor and Monitor ISL6550, and Half-bridge Driver  
HIP2100, is presented in application note AN1002.  
In addition, the ISL6551 can also be designed in push-pull  
converters using all of the features except the two upper  
drivers and adjustable resonant delay features.  
FN9066 Rev 7.00  
Oct 28, 2015  
Page 1 of 27  
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