Features: ` Internal On/Off Latch
` High-Side, N-Channel Power MOSFET Drive
` 25A (max) Quiescent Current
` 6A (max) Off Current
` Requires No External Components
` 1.5%-Accurate Low-Battery Detector
` Space-Saving MAX Package
` 5V to 26V Input Voltage Range
` Drives Single or Back-to-Back MOSFETs
` Controlled Turn-On for Low Inrush CurrentApplicationNotebook Computers
Portable Equipment
Hand-Held Instruments
Battery PacksPinout
SpecificationsBATT, SRC to GND.................................................-0.3V to +30V
GATE to SRC.........................................................-0.3V to +12V
GATE to GND .......................................................-0.3V to +36V
GATE + SRC Sink Current, Continuous ............................2.7mA
LBI, LBO, ON, OFF to GND....................................-0.3V to +12V
LBO Current .......................................................................5mA
Continuous Power Dissipation (TA = +70°C)
MAX (derate 4.10mV/°C above +70°C) ....................330mW
Operating Temperature Range ......................-40°C to +85°C
Junction Temperature...................................................+150°C
Storage Temperature Range .......................-65°C to +160°C
Lead Temperature (soldering, 10sec) ..........................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
DescriptionThe MAX1614 drives high-side, N-channel power MOSFETs to provide battery power-switching functions in portable equipment. N-channel power MOSFETs typically have one-third the on-resistance of P-channel MOSFETs of similar size and cost. An internal micropower regulator and charge pump generate the high-side drive output voltage,while requiring no external components.
The MAX1614 also features a 1.5%-accurate low-battery comparator that can be used to indicate a low-battery condition, provide an early power-fail warning to the system microprocessor, or disconnect the battery from the load, preventing deep discharge and battery damage. An internal latch allows for pushbutton on/off control with very low current consumption. Off-mode current consumption is only 6A while normal operation requires less than 25A. The MAX1614 is available in the space-saving MAX package that occupies about 60% less space than a standard 8-pin SO.
MAX1614 Data Sheet
