BL8598 Datasheet, PDF (1/6 Pages) SHANGHAI BELLING CO., LTD. – Adjustable Overvoltage Protector with High Accuracy

BL8598
Adjustable Overvoltage Protector with High Accuracy
DESCRIPTION
The BL8598 overvoltage protection devices
feature a low 180 (typ) RON internal FET and
safeguards 2.2V to 28V systems from power
supply overvoltage. If the input voltage exceeds
the overvoltage threshold, the internal FET is
turned off to prevent the output load circuits
from damage.
The overvoltage protection threshold can be
adjusted with optional external resistors to any
voltage between 4V and 8V. With the OVLO input
set below the external OVLO select voltage, the
BL8598 automatically choose the internal ±2.5%
accurate trip thresholds. The internal overvoltage
thresholds (OVLO) are preset to 6.75V typical.
The BL8598 includes an internal thermal
shutdown circuit which can protect against
overcurrent events.
FEATURES
 Overvoltage Protection up to 28V
 ±2.5% Accurate 6.75V OVLO Threshold
 Adjustable Overvoltage Protection Trip Level
 Integrated 180 n-Channel MOSFET Switch
 Automatic Overvoltage Protection Trip-Level
Selection
 Internal 15ms Startup Delay
 Thermal Shutdown Protection
 Available in DFN2x2-8L Package
 Temperature Range: -40C~85C
APPLICATIONS
 Cell Phones
 MP3 and MP4 players
 PDAs and Palmtop Devices
BL8598 is available in DFN2x2-8L package.
TYPICAL APPLICATION
PIN OUT
BL8598
R1 and R2 are required only for adjustable OVLO;
otherwise, connect OVLO to GND.
DFN2x2-8L
*Connect exposed PAD to GND.
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