MAX16915AUB/V+ Maxim Integrated Products, MAX16915AUB/V+ Datasheet - Page 6

• Manufacturer Part Number: MAX16915AUB/V+
• Description: IC CTRLR IDEAL DIODE 10UMAX
• Manufacturer: Maxim Integrated Products

Specifications of MAX16915AUB/V+

• Applications: Battery Backup, Industrial/Automotive, High Current Switch
• Fet Type: P-Channel
• Number Of Outputs: 2
• Internal Switch(s): No
• Voltage - Supply: 4.5 V ~ 19 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Delay Time - On: -
• Delay Time - Off: -

Ideal Diode, Reverse-Battery, and Overvoltage Protection
Switch/Limiter Controllers with External MOSFETs
The MAX16914/MAX16915 are ultra-small, low-quies-
cent, high load-current, overvoltage-protection circuits
for automotive or industrial applications. These devices
monitor the input and output voltages and control two
p-channel MOSFETs to protect downstream loads from
reverse-battery, overvoltage, and high-voltage transient
conditions and prevent downstream tank capacitors
from discharging into the source (back-charging).
One MOSFET (P1) eliminates the need for external
diodes, thus minimizing the input voltage drop and
provides back-charge and reverse-battery protection.
The second MOSFET (P2) isolates the load or regulates
the output voltage during an overvoltage condition.
These ICs allow system designers to size the external
p-channel MOSFET to their load current, voltage drop,
and board size.
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______________________________________________________________________________________
SHDN
SENSE IN
OV
V
GATE1
CC
Detailed Description
OV1
REG
BANDGAP
MAX16914
MAX16915
BIAS
In the MAX16914, the input voltage is monitored (TERM
is internally shorted to V
making the device an overvoltage switch-off controller.
As the V
age threshold is tripped, the internal fast comparator
turns off the external p-channel MOSFET (P2), pulling
GATE2 to V
the load. When the monitored voltage goes below the
adjusted overvoltage threshold, the MAX16914 enhanc-
es GATE2, reconnecting the load to the power source.
1.20V
CC
voltage rises, and the programmed overvolt-
Overvoltage Switch-Off Controller
CC
to disconnect the power source from
SWITCH
TERM
TO SENSE OUT
FOR MAX16915
TO V
MAX16914
CC
OV1
Functional Diagram
CC
—see the Functional Diagram)
FOR
(MAX16914)
SENSE OUT
SET
TERM
GND
GATE2