Diodes ZXCT1012 User Manual
Zxct1012, Reduced height micro-power current monitor, Description
ZXCT1012
REDUCED HEIGHT MICRO-POWER CURRENT MONITOR
ZXCT1012
Document number: DS33444 Rev. 2 - 2
1 of 9
September 2011
© Diodes Incorporated
Description
The ZXCT1012 is a high side current sense monitor. Using
this type of device eliminates the need to disrupt the ground
plane when sensing a load current.
The ZXCT1012 takes the voltage developed across a small
value resistor and translates it into a proportional output
current. A user defined output resistor scales the output
current into a ground referenced voltage.
The ZXCT1012 has the accuracy specification of the
ZXCT1010 but in TSOT25.
A minimum operating current of just 3.5
μA, combined with its
TSOT25 package make it suitable for portable battery
equipment where size and current consumption are critical.
The wide input voltage range down to as low as 2.5V make it
suitable for a wide range of applications requiring direct
operation from a battery.
Pin Assignments
5
4
3
2
1
GND
NC
OUT
SENSE+
SENSE-
TSOT25
(Top View)
Features
•
2.5V to 20V supply range
• 3.5μA quiescent current
•
Current output - user set gain
•
Thin package - TSOT25
•
Temperature range -40 to 85°C
Applications
•
Battery fuel gauge
• Battery
chargers
• Overcurrent
monitor
• Power
management
Typical Application Circuit
ZXCT1012
R
SENSE
V
IN
V
OUT
R
OUT
R
LOAD
SENSE+
SENSE-
OUT
GND