HDP01-0512N Datasheet, PDF (1/6 Pages) STMicroelectronics – HARD DISK DRIVE POWER SUPPLY PROTECTION

®
Application Specific Discretes
A.S.D.^TM
HDP01-0512N
HARD DISK DRIVE
POWER SUPPLY PROTECTION
APPLICATIONS
PROTECTION FOR THE +5V AND +12V
POWER LINES OF:
- Hard disk drives
- Floppy disk drives
- CD-ROMs, CD-R, CD-RW
- DVDs
FEATURES
PROTECTION OF BOTH 5V AND 12V SUPPLY
RAILS.
MAXIMUM CURRENT ON THE 5V LINE 3A
DURING 1s.
MONOLITHIC INTEGRATION IN PLANAR
TECHNOLOGY.
DESCRIPTION
This device is dedicated to the protection of the
+5V power supply line against transient overvol-
tages due to surge of power rails up to the activa-
tion of the serial thermal protection element. It is
also dedicated to the protection of the +12V rail
against transient overvoltages.
PL5
GND
PL5
PL12
SOT223
BENEFITS
COMPONENT COUNT REDUCTION
PCB SURFACE REDUCTION
SIMPLIFIED SYSTEM PROTECTION DESIGN
BASIC APPLICATION DIAGRAM
Unprotected 5V
Protected 5V
PL12
PL5
Unprotected 12V
PL12
Protected 12V
PL5
HDP01-0512N
Gnd
OVERVOLTAGE
CLAMPING
OVERVOLTAGE
DETECTION
note: The element in series with the 5V line is a resettable device, like Raychem Polyswitch MiniSMD075.
TM : ASD is trademark of STMicroelectronics.
April 1999 - Ed: 6A
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