A8499, A84991.1, A849XAH Selling Leads, Datasheet
MFG:98 Package Cooled:DIP8 D/C:2007+
A8499, A84991.1, A849XAH Datasheet download
Part Number: A8499
MFG: 98
Package Cooled: DIP8
D/C: 2007+
A8499, A84991.1, A849XAH
- Table of contents:
Info of A8499
Info of A84991.1
Info of A849XAH
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About A8499
PDF/DataSheet Download
Datasheet: A8499
File Size: 283605 KB
Manufacturer: ALLEGRO [Allegro MicroSystems]
Download : Click here to Download
About A840
PDF/DataSheet Download
Datasheet: A840
File Size: 67949 KB
Manufacturer: KEC [KEC(Korea Electronics)]
Download : Click here to Download
About A840
PDF/DataSheet Download
Datasheet: A840
File Size: 67949 KB
Manufacturer: KEC [KEC(Korea Electronics)]
Download : Click here to Download
A8499 General Description
The A8499 is a step-down regulator that will handle a wide input of operating voltage ranges. It is a fixed off-time current-mode-controlled buck regulator. The regulator requires an external clamping diode, inductor and filter capacitor. The off time is determined by an external resistor.
It will operate in both continuous and discontinuous modes. An internal blanking circuit will be used to filter out transients due to the reverse recovery of the external clamp diode. Typical blanking time is 200 nS.
The output voltage is adjustable from 1.2 V to 24 V based on a resistor divider and the 1.2 V 3 percent reference.
A8499 Maximum Ratings
- 8-50 V input range
- Integrated DMOS switch
- Flat efficiency curve across output current
- 1.5 A output in standard SOIC-8 package
- Low shutdown current
- Low cost
- Applications with 8 to 50 V input voltage range needing buck regulator for 1.5 A output current
- Consumer equipment power
- Uninterruptible power supplies (lead acid battery charger)
- Automotive: 9 to 16 V input, with higher voltage protection
- 12 V lighter-powered applications (portable DVD, etc.)
- Point of Sale (POS) applications
- Industrial applications with 24 V or 36 V bus
A8499 Features
·8 to 50 V input range
·Integrated DMOS switch
·Adjustable fixed off-time
·Highly efficient
·Adjustable 1.2 to 24 V output
·Integrated DMOS switch
·Adjustable fixed off-time
·Highly efficient
·Adjustable 1.2 to 24 V output
A8499 Typical Application
·Printer power supplies
·Consumer equipment power supplies
·Consumer equipment power supplies
A8499 Connection Diagram
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