The XC61A is a highly precise detector series manufactured using CMOS
and laser trimming technologies.
The series is very accurate and offers standard voltage sourced low power
consumption.The series consists of hysteresis, output driver, and linear
characterised delay circuits, together with a comparator. Detect voltage is
extremely accurate with minimal temperature drift. Both CMOS and N-
channel open drain output configurations are available.
Integrating the above functions in a single, mini-molded package, the
XC61A series offers significant space saving and high-density mounting,
suitable for use with portable products.
s
Features
Highly accurate:
Detect voltage
±2%
(±1% for semi-custom products)
Low power consumption:
Typ.1.0µA (V
IN
=2V)
Selectable detect voltage:
Range 2.1V ~ 6.0V in 0.1V increments.
Operating voltage:
From 0.7V ~ 10.0V.
Temperature Characteristics:
Typ.±100ppm/:
Output configuration:
N-channel open drain or CMOS
Ultra small package:
SOT-23 (150mW) mini-mold SOT-89 (500mW)
mini-power mold
*TO-92 (300mW) packages also available. (order basis)
s
Pin Configuration
V
IN
s
Pin Assignment
PIN NUMBER
PIN NAME
SOT-23
3
2
SOT-89
2
3
1
V
IN
V
SS
V
OUT
Supply voltage input
Ground
Output
FUNCTION
3
1
V
OUT
2
V
SS
1
V
OUT
2
V
IN
3
V
SS
1
SOT-23
(TOP VIEW)
SOT-89
(TOP VIEW)
s
Block Diagram
(1) CMOS output
V
IN
s
Absolute Maximum Ratings
PARAMETER
Input Voltage
Output Voltage
SYMBOL
V
IN
V
OUT
I
OUT
RATINGS
12
V
SS
–0.3 ~ V
IN
+0.3
50
150
P
d
SOT-89
T
opr
T
stg
500
–30 ~ +80
–40 ~ +125
Ta=25:
UNITS
V
V
mA
V
OUT
V
ref
V
SS
(2) N-channel open drain output
V
IN
V
OUT
Output Current
SOT-23
Continuous Total
Power Dissipation
mW
Operating Ambient Temperature
V
ref
:
:
Storage Temperature
V
SS
7
q
-4
XC61A Series
s
Electrical Characteristics
PARAMETER
Detect Voltage
Hysteresis Range
Supply Current
SYMBOL
V
DF
V
HYS
I
SS
General Voltage Detectors (2.1V ~ 6.0V)
Ta=25:
CONDITIONS
MIN
V
DF
!0.98
!0.02
V
IN
=1.5V
=2.0V
=3.0V
=4.0V
=5.0V
V
DF
=2.1~6.0V
N
C
h V
DS
=0.5V
V
IN
=1.0V
=2.0V
=3.0V
=4.0V
=5.0V
N-
C
h V
DS
=2.1V
V
IN
=8.0V
(CMOS Output)
-30:≤T
opr
≤80:
0.7
2.2
7.7
10.1
11.5
13.0
–10.0
±
100
0.2
ppm/:
ms
TYP
V
DF
!0.05
0.9
1.0
1.3
1.6
2.0
MAX
V
DF
!1.02
!0.08
2.6
3.0
3.4
3.8
4.2
10.0
UNITS
V
V
µA
Operating Voltage
V
IN
V
Output Current
I
OUT
mA
Temperature Characteristics
Delay Time(Release Voltage
Output
Inversion)
∆VDF/
(
∆Topr
VDF)
t
DLY
(V
DR
V
OUT
Inversion)
Note: 1. The products that have 1% Detect Voltage (V
DF
) accuracy are semi-custom products.
2. An additional resistor connected between the Vin pin and the supply voltage may cause alterations in the characteristics due to the increasing values
of V
DR
.
s
Notes on Use
Where a resistor (RIN) is connected between VIN and the power
supply, use the N-ch open drain configuration.
In order to prevent oscillation please ensure that RIN = 1kΩ or less
and that C = 0.1µF or more.
s
Functional Description
The following designators
q-y
refer to the timing diagram below:
qWhen
the Input Voltage (V
IN
) is higher than the Detect Voltage (V
DF
)
level, output at the V
OUT
pin is equal to V
IN.
(High impedance exists
with the N-channel open drain output configuration).
wWhen
the Input Voltage (V
IN
) falls below the Detect Voltage (V
DF
)
level, the Output Voltage (V
OUT
) is equal to the Ground Voltage (V
SS
)
level.
eWhen
the Input Voltage (V
IN
) falls below the Minimum Operating
Voltage (V
MIN
) level, output becomes unstable. In this condition, if
there is an output pull-up, V
IN
will be the output.
rWhen
the Input Voltage (V
IN
) rises above the ground voltage (Vss)
level, output becomes unstable between the Ground Voltage (V
SS
)
level and the Minimum Operating Voltage (V
MIN
) level. Between the
V
MIN
and V
DR
levels the Ground Voltage (Vss) level is maintained.
tWhen
the Input Voltage (V
IN
) rises above the Detect Release Voltage
(V
DR
) level, output at the V
OUT
pin is equal to V
IN
. (High impedance
exists with the N-channel open drain output configuration).
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