MAX4795ETT-T Maxim Integrated, MAX4795ETT-T Datasheet - Page 8

• Manufacturer Part Number: MAX4795ETT-T
• Description: Power Switch ICs - Power Distribution
• Manufacturer: Maxim Integrated

Specifications of MAX4795ETT-T

• Number Of Outputs: 1
• Operating Supply Voltage: 2 V to 4.5 V
• Maximum Operating Temperature: + 85 C
• Package / Case: TDFN EP-6
• Minimum Operating Temperature: - 40 C

Connect a 0.1µF capacitor from OUT to GND. This
capacitor helps prevent inductive parasitics from
pulling OUT negative during turn off, thus preventing
the MAX4795–MAX4798 from tripping erroneously. If
the load capacitance is too large, then current may not
have enough time to charge the capacitor and the
device assumes that there is a faulty load condition.
The maximum capacitive load value that can be driven
from OUT is obtained by the following formula:
To optimize the switch response time to output short-
circuit conditions, it is very important to keep all traces
as short as possible to reduce the effect of undesirable
parasitic inductance. Place input and output capacitors
as close as possible to the device (no more than 5mm).
IN and OUT pins must be connected with short traces
to the power bus.
450mA/500mA Current-Limit Switches
8
MAX4795EUK-T
MAX4795ETT
MAX4796EUK-T
MAX4796ETT
MAX4797EUK-T
MAX4797ETT
MAX4798EUK-T
MAX4798ETT
_______________________________________________________________________________________
PART
C
MAX
Layout and Thermal Dissipation
<
I
FWD MIN
CURRENT LIMIT
_
(mA)
450
450
450
450
500
500
500
500
×
V
Output Capacitance
IN
t
BLANK MIN
Selector Guide
_
AUTORETRY
Yes
Yes
Yes
Yes
No
No
No
No
During normal operation, the power dissipation is small
and the package temperature change is minimal. If the
output is continuously shorted to ground at the maxi-
mum supply voltage, the operation of the switches with
the autoretry option does not cause problems because
the total power dissipated during the short is scaled by
the duty cycle:
where V
t
Attention must be given to the MAX4795 and MAX4797
where the latchoff condition must be manually reset by
toggling ON from high to low. If the latchoff time dura-
tion is not sufficiently high, it is possible for the device
to reach the thermal-shutdown threshold and never be
able to turn the device on until it cools down.
TRANSISTOR COUNT: 2539
PROCESS: BiCMOS
RETRY
P
MAX
= 210ms.
IN
=
= 4.5V, I
V
IN MAX
_
t
OUT
RETRY
×
I
OUT MAX
= 750mA, t
+
_
Chip Information
t
BLANK
×
t
BLANK
BLANK
=
= 14ms, and
211
mW