MP6903
The MP6903 rectifier boasts exceptional noise suppression and efficient light load handling, perfect for LLC systems."MP6903
The MP6903 rectifier boasts exceptional noise suppression and efficient light load handling, perfect for LLC systems."
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MP6903 數據表
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詳細說明
The IMP690A/IMP692A/IMP802L/IMP802M/IMP805L simplify power supply monitoring and control in microprocessor systems. Each circuit implements four functions: Reset control, watchdog monitoring, batterybackup switching and power-failure monitoring. In addition to microprocessor reset under powerup and power-down conditions, these devices provide battery-backup switching to maintain control in powerloss and brown-out situations. Additional monitoring capabilities can provide an early warning of unregulated power-supply loss before the voltage regulator drops out. Key Features◆ Design improvement over Maxim MAX690A/692A/802L/802M/805L — 70% lower current than Maxim: 100µA maximum — RESET Operation to 1.1V◆ Two precision supply-voltage monitor options — 4.65V (IMP690A/802L/805L) — 4.40V (IMP692A/802M)◆ Battery-backup power switch on-chip◆ Watchdog timer: 1.6 second timeout◆ Power failure/low battery detection◆ Short-circuit protection and thermal limiting◆ Small 8-pin SO package◆ No external components◆ Specified over full temperature range Applications◆ Embedded control systems◆ Battery–operated systems◆ Intelligent instruments◆ Wireless communication systems◆ PDAs and handheld equipment◆ µP/µC power supply monitoring
主要特徵
- Design improvement over Maxim
- MAX690A/692A/802L/802M/805L
- — 70% lower current than Maxim:
- 100µA maximum
- — RESET Operation to 1.1V
- Two precision supply-voltage monitor options
- — 4.65V (IMP690A/802L/805L)
- — 4.40V (IMP692A/802M)
- Battery-backup power switch on-chip
- Watchdog timer: 1.6 second timeout
- Power failure/low battery detection
- Short-circuit protection and thermal limiting
- Small 8-pin SO package
- No external components
- Specified over full temperature range
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
Manufacturer | Monolithic Power Systems | Product Category ! | Power Supply Controllers, Monitors |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is MP6903?
The MP6903 is a high-frequency, synchronous rectified, step-down switch mode converter designed by Monolithic Power Systems. It is ideal for applications requiring efficient power conversion, such as DC-DC power supplies, LED lighting, and portable electronic devices.
How Does MP6903 Work?
The MP6903 works by efficiently converting input voltage into a lower output voltage using a synchronous rectification technique. It utilizes a high-frequency pulse-width modulation (PWM) control scheme to regulate the output voltage with high efficiency. The converter features integrated power MOSFETs for compact and low-heat dissipation designs.
How Many Pins does MP6903 have and What are the Functions of the Pinout Configuration?
The MP6903 is housed in a QFN (Quad Flat No-leads) 20-pin package. The pinout configuration includes:
- VIN: Input voltage pin.
- SW: Switching node connection.
- VOUT: Output voltage pin.
- PGND: Power ground pin.
- AGND: Analog ground pin.
- FB: Feedback input for output voltage control.
- EN: Enable pin for device control.
- SS/TR: Soft-start/Tracking control pin.
- COMP: Compensation pin for loop stability.
- FB2: Secondary feedback input for multi-rail output voltage control.
- RT/CLK: External synchronization and frequency adjust pin.
- SYNC: Synchronization and frequency adjust input pin.
- SS/TR2: Soft-start and tracking control pin for multi-rail output voltage control.
What are the Pros and Cons of MP6903?
Pros:
- High Efficiency: Achieves high efficiency in power conversion, reducing energy loss.
- Wide Input Voltage Range: Operates over a wide input voltage range for versatility in various applications.
- Integrated MOSFETs: Integrated power MOSFETs simplify the design and layout of the power supply.
- Compact Package: The QFN package offers a compact footprint for space-constrained designs.
- Multiple Control Features: Includes soft-start, synchronization, and multi-rail control for advanced power management.
Cons:
- Complex Design Considerations: Requires careful consideration of layout, noise, and thermal management for optimal performance.
- External Components: May require additional external components for specific application requirements.
- Thermal Considerations: Synchronous rectification requires attention to thermal design for heat dissipation.
Are There Any Equivalents/Alternatives to MP6903 for Recommendation?
- The MP6902 from Monolithic Power Systems is a similar synchronous rectified step-down converter with slightly different features.
- Alternatives to the MP6903 include the LT8609S from Analog Devices and the TPS544B20 from Texas Instruments.
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