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SI-8205NHD ｜Sanken Electric
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Description
The SI-8205NHD is a synchronized rectifier type chopper
regulator IC with a built-in power MOS.
Due toa current control system, it is applicable to such a super
low ESR capacitor as a ceramic capacitor.
It is provided with various protection functions such as
overcurrent protection, low input prohibition, overheat protection
etc.
In order to protect the IC against in-rush current at start-up, the
soft start function is provided.
The soft start time can be set by connecting external capacitors.
And the frequency can be set by connecting an external capacitor.
This device is supplied in a compact and thin HOSP 8-pin
package with heat slug on the back side.
Application
・DVD recorders, FPD TV
・OA equipment (printers, etc)
・On-board local power supplies
Features
・High efficiency: 90%(VIN=12V, Vo=5V, IO=1A, fo=500kHz)
・150mΩMOSFET(High/Low side)
・Ceramic capacitor can be used for output
・Externally adjusted frequency type: 200kHz～1MHz
・Output voltage range: 0.5～24V
・Built-in drooping type overcurrent and thermal protection circuits
Remarks
Package
Package Name:HSOP8
Design Support
Specifications
Built-in Power YES
Output Voltage 0.5V to 24V
Output Current 3A
Input Voltage Range 8V to 43V
Operating Frequency 200kHz to 1000kHz
Synchronous /
Asynchronous Synchronous
Current Mode Control YES
Maximum Input
Voltage 43V
Minimum Input
Voltage 8V
Output On / Off YES
Low ESR Capacitor
Support YES
Overcurrent
Protection Drooping Type
Phase
Compensation External
Thermal Protection YES
UVLO YES
SI-8205NHD
Data sheet
Application Note (PDF:837.76KB)
Representative Circuit
Internal Block Diagram
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Pin-out Diagrams
Data sheet
Application Note (PDF:837.76KB)