ZXCT1080 Datasheet, PDF (1/12 Pages) Zetex Semiconductors – High voltage high-side current monitor

ZXCT1080
High voltage high-side current monitor
Description
The ZXCT1080 is a high side current sense
monitor with a gain of 10 and a voltage
output. Using this device eliminates the need
to disrupt the ground plane when sensing a
load current.
The wide input voltage range of 60V down to
as low as 3V make it suitable for a range of
applications; including systems operating
from industrial 24-28V rails and -48V rails.
The separate supply pin (V_CC) allows the device
to continue functioning under short circuit
conditions, giving an end stop voltage at the
output.
The ZXCT1080 has an extended ambient
operating temperature range of -40°C to 125°C
enabling it to be used in a wide range of
applications including automotive.
Features
• 3V to 60V continuous high side voltage
• Accurate high-side current sensing
• -40 to 125°C temperature range
• Output voltage scaling x10
• 4.5V to 12V V_CC range
• Low quiescent current:
• 80µA supply pin
• 27µA I_S+
• SOT23-5 package
Pin connections
Applications
• Industrial applications current measurement
• Battery management
• Over-current measurement
• Power management
• Automotive current measurement
Typical application circuit
V_CC 1
5 S-
V IN
R SENSE
GND ²
OUT 3
4 _S+
4
5
S+
S-
V_CC
1 _{Vcc ZXCT1080}
GND
OUT
2
3
V OUT
Ordering information
Device
Package
ZXCT1080E5TA SOT23-5
Part mark
1080
Reel size
(inches)
7
Tape width
(mm)
8
Quantity per
reel
3000
Issue 3 - March 2008
1
© Zetex Semiconductors plc 2008
www.zetex.com