Diodes ZXMS6003G - Manual (Page 2)

ZXMS6003G
Issue 2 - March 2007 2 www.zetex.com
© Zetex Semiconductors plc 2007
Functional block diagram
Applications and information
• Especially suited for loads with a high in-rush current such as lamps and motors.
• All types of resistive, inductive and capacitive loads in switching applications.
•
␮C compatible power switch for 12V and 24V DC applications.
• Automotive rated.
• Replaces electromechanical relays and discrete circuits.
• Linear mode capability - the current-limiting protection circuitry is designed to de-activate at
low V
DS
, in order not to compromise the load current during normal operation. The design
max. DC operating current is therefore determined by the thermal capability of the package/
board combination, rather than by the protection circuitry.
Note: This does not compromise the product's ability to self-protect during short-circuit load
conditions.
• The current limit is programmable via an external resistor R
prog
connected between Status and
IN pins.
• Status pin voltage reflects the gate drive being applied internally to the power MOSFET.
With V
IN
= 5V and R
prog
= 24k
⍀:
Status voltage ~ 5V indicates normal operation.
Status voltage ~ (2-3)V indicates that the device is in current-limiting mode.
Status voltage < 1V indicates that the device is in thermal shutdown.
S
Over voltage
protection
Status /
current limit
Over current
protection
Over temperature
protection
Logic
Human body
ESD protection
D
IN