Diodes ZXCT1080 - Manual (Page 2)

ZXCT1080
HIGH VOLTAGE HIGH-SIDE CURRENT MONITOR
ZXCT1080
Document number: DS33454 Rev. 4 - 2
2 of 11
www.diodes.com
December 2011
© Diodes Incorporated
Pin Descriptions
Pin Name Description
1 V
CC
This is the analogue supply and provides power to internal circuitry
2 GND Ground pin
3 OUT Output voltage pin. NMOS source follower with 20 μA bias to ground
4 S+
This is the positive input of the current monitor and has an input range from
60V down to 3V. The current through this pin varies with differential sense
voltage
5 S-
This is the negative input of the current monitor and has an input range
from 60V down to 3V
Absolute Maximum Ratings (T
A
= 25
°C)
Parameter Rating Unit
Continuous voltage on S- and S+ -0.6 and 65 V
Voltage on all other pins -0.6 and +14 V
Differential sense voltage, V
SENSE
(Note 1) 800 mV
Operating temperature -40 to +125 °C
Storage Temperature -55 to +150 °C
Maximum Junction Temperature 125 °C
Package Power Dissipation (Note 2)
300
(@ T A = 25°C)
mW
Operation above the absolute maximum rating may cause device failure. Operation at the absolute maximum ratings,
for extended periods, may reduce device reliabilty.
Note: 1. V SENSE is defined as the differentail voltage between S+ and S- pins
2. Assumes θ
JA = 420°C/W
Recommended Operating Conditions
Symbol Parameter Min Max Units
V
IN
Common-mode Sense+ Input Range 3 60 V
V
CC
Supply Voltage Range 4.5 12 V
V
SENSE
Differential Sense Input Voltage Range 0 0.15 V
V
OUT
Ouput Voltage Range (Note 3) 0 1.5 V
T
A
Ambient Temperature Range -40 125 °C
Note: 3. Based on 10x V SENSE