71M6403
Electronic Trip Unit
SEPTEMBER 2006
Page: 67 of 75
©
2006 TERIDIAN Semiconductor Corporation
REV 1.0
VREF, VBIAS
Unless otherwise specified,
VREF_DIS
=0
PARAMETER CONDITION
MIN
TYP
MAX
UNIT
VREF
output voltage, VNOM(25)
Ta = 22ºC
1.193
1.195
1.197
V
VREF
chop step
40
mV
VREF
output impedance
CAL
=1,
I
LOAD
= 10µA, -10µA
2.5
k
Ω
VNOM
definition
1
VNOM(T) = VREF(22) + (T–22)TC1 + (T–22)
2
TC2 V
VREF
temperature coefficients
TC1 (linear)
TC2 (quadratic)
-6.68
-0.341
µV/ºC
µV/°C
2
VREF(T)
deviation from VNOM(T)
)
40
|,
22
max(|
10
)
(
)
(
6
−
−
T
VNOM
T
VNOM
T
VREF
Ta = -40ºC to +85ºC
-40
+40
ppm/ºC
VBIAS
output voltage
Ta = 25ºC
Ta = -40ºC to 85ºC
(-1%)
(-2%)
1.6
1.6
(+1%)
(+2%)
V
V
VBIAS
output impedance
I
LOAD
= 1mA, -1mA
240
500
Ω
FOOTNOTE
1
This relationship describes the nominal behavior of VREF at different temperatures.
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