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SN6505ADBVR
SN6505ADBVR
815-SN6505ADBVR
SOT-23-6
6 Terminations2.25V~5.5V 6 Pin SN6505 Specialized Power Management ICs1 Functions
In Stock : 9620
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Product Details
Purchasing and Inquiry
Description
A push-pull transformer driver with low noise and EMI, the SN6505ADBVR was created especially for tiny, isolated power supply. It uses a DC power source ranging from 2.25 V to 5 V to drive low-profile, center-tapped transformers. By slew rate controlling the output switch voltage and using spread spectrum clocking, ultra-low noise and EMI are made possible (SSC). The oscillator and gate drive circuit of the SN6505ADBVR provide the complementary output signals needed to control ground-referenced N-channel power switches. The device has two 1-A Power-MOSFET switches to ensure that it can start up even when under a lot of loads. When using several transformer drivers or for precise placement of switcher harmonics, the switching clock can also be given externally. A 1.7 A current limiter, an under-voltage lockout, a thermal shutdown, and break-before-make circuits are some of the internal protection measures.
The SN6505ADBVR has a soft-start feature that reduces high inrush current when large load capacitors are powered up. For applications that need to limit emissions but also demand higher efficiency and smaller transformer size, the SN6505ADBVR includes a 160 kHz internal oscillator. Small 6-pin SOT23/DBV packages of the SN6505ADBVR are available. The operating characteristics of the device are described over a temperature range of -55°C to 125°C.
Features
Low shutdown current: <1 μA
Thermal shutdown
Wide temperature range: –55°C to 125°C
Small 6-Pin SOT23 (DBV) package
Soft-start to reduce In-rush current
Spread-spectrum clocking
Precision internal oscillator options: 160 kHz
Synchronization of multiple devices with external clock input
Slew-rate control
1.7 A Current-limit
Push-pull driver for transformers
Wide input voltage range: 2.25 V to 5.5 V
High output drive: 1 A at 5 V supply
Low RON 0.25 Ω max at 4.5 V supply
Ultra-low EMI
Applications
Radio supplies
Distributed supplies
Medical instruments
Precision instruments
Low-noise filament supplies
Isolated power supply for CAN, RS-485, RS-422, RS-232, SPI, I2C, low-power LAN
Low-noise isolated USB supplies
Process control
Telecom supplies
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SN6505ADBVR
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