MAX4995AL Maxim, MAX4995AL Datasheet - Page 10

• Manufacturer Part Number: MAX4995AL
• Description: The MAX4995A/MAX4995AF/MAX4995AL/MAX4995B/MAX4995C programmable current-limit switches feature internal current limiting to prevent damage to host devices due to faulty load conditions
• Manufacturer: Maxim

50mA to 600mA Programmable
Current-Limit Switches
FLAG is an open-drain fault indicator output and requires
an external pullup resistor to a DC supply. FLAG goes
low when any of the following conditions occurs:
•
•
•
•
Figure 2. Autoretry Fault Diagram
Figure 3. Latchoff Fault Diagram
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The device is in current-limit mode.
The OUT voltage is above the IN voltage by more
than 110mV (typ).
The die temperature exceeds the thermal-shutdown
temperature limit of +150°C.
SETI is connected to ground.
______________________________________________________________________________________
CURRENT LIMIT
LOAD CURRENT
FLAG
THERMAL-SHUTDOWN MODE
OUT
THE DEVICE GOES TO
CURRENT LIMIT
LOAD CURRENT
t
BLANK
FLAG
OUT
FLAG Indicator
t
RETRY
t
BLANK
t
BLANK
t
RETRY
Thermal-shutdown circuitry protects the devices from
overheating. The switch turns off and FLAG goes low
immediately when the junction temperature exceeds
+150°C (typ). The switch turns on again after the device
temperature drops by approximately 15°C (typ).
t
BLANK
t
BLANK
t
BLANK
THE DEVICE GOES TO
THERMAL-SHUTDOWN MODE
Thermal Shutdown