ZXCT1081E5TA View Datasheet(PDF) - Zetex => Diodes

Part Name

Description

Manufacturer

ZXCT1081E5TA

High voltage high-side current monitor

Zetex => Diodes 

ZXCT1081

Electrical characteristics

Test conditions TA = 25°C, VIN = 12V, VCC = 5 V, VSENSE(a) = 100mV unless otherwise stated.

Symbol

ICC

ISENSE+

ISENSE-

VO(0)

VO(10)

Parameter

VCC supply current

SENSE+ input current

SENSE- input current

Zero VSENSE(a) error(b)

Output offset voltage(c)

Gain

⌬VOUT/⌬VSENSE(a)

VOUT TC(d) VOUT variation with

temperature

Acc

IOH

IOL

PSRR

Total output error

Output source current

Output sink current

VCC supply rejection

ratio

CMRR

Common-mode sense

rejection ratio

BW

-3dB small signal

bandwidth

Conditions

VCC = 12V

VSENSE(a) = 0V

VSENSE(a) = 10mV

VSENSE(a) = 10mV to 150mV

⌬VOUT = -30mV

⌬VOUT = +30mV

VCC = 4.5V to 12V

VIN = 40V to 3V

VSENSE(a) (AC) = 10mVPP

Min.

40

15

10

0

-30

9.95

-3

54

60

Typ.

80

30

40

10

30

1

20

60

75

500

Max.

120

60

80

35

Units

µA

µA

nA

mV

+30

mV

10.05

ppm/°C

3

%

mA

µA

dB

dB

kHz

NOTES:

(a) VSENSE = "VSENSE+" - "VSENSE-"

(b) The ZXCT1081 operates from a positive power rail and the internal voltage-current converter current flow is

unidirectional; these result in the output offset voltage for VSENSE = 0V always being positive.

(c) For VSENSE > 10mV, the internal voltage-current converter is fully linear. This enables a true offset to be defined and

used. VO(10) is expressed as the variance about an output voltage of 100mV>

(d) Temperature dependent measurements are extracted from characterization and simulation results.

Issue 4 - April 2007

3

© Zetex Semiconductors plc 2007

www.zetex.com

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