ZXCT1009 Datasheet, PDF (1/9 Pages) Zetex Semiconductors – HIGH-SIDE CURRENT MONITOR

HIGH-SIDE CURRENT MONITOR
ZXCT1009
DESCRIPTION
The ZXCT1009 is a high side current sense monitor.
Using this device eliminates the need to disrupt the
ground plane when sensing a load current.
APPLICATIONS
• Battery chargers
• Smart battery packs
It takes a high side voltage developed across a current _{• DC motor control}
shunt resistor and translates it into a proportional
output current.
• Over current monitor
A user defined output resistor scales the output current
into a ground-referenced voltage.
The wide input voltage range of 20V down to as low as
2.5V make it suitable for a range of applications. A
minimum operating current of just 4␮A, combined with
its SOT23 package make it a unique solution for
portable battery equipment.
• Power management
• Level translating
• Programmable current source
APPLICATION CIRCUIT
FEATURES
• Low cost, accurate high-side current sensing
• Output voltage scaling
• Up to 2.5V sense voltage
• 2.5V – 20V supply range
• 4µA quiescent current
• 1% typical accuracy
• SOT23 and SM8 packages
ORDERING INFORMATION
DEVICE
ZXCT1009FTA
ZXCT1009T8TA
REEL
SIZE
7”
7”
TAPE
WIDTH
8mm
12mm
QUANTITY PER
REEL
3,000 units
1,000 units
PARTMARKING
109
ZXCT1009
PACKAGE
SOT23
SM8
ISSUE 10 - JULY 2007
1
SEMICONDUCTORS