XC61CC0902LB Torex Semiconductor, XC61CC0902LB Datasheet - Page 9

• Manufacturer Part Number: XC61CC0902LB
• Description: LOW VOLTAGE DETECTORS
• Manufacturer: Torex Semiconductor

■Directions for use
GNotes on Use
GOscillation Description
1. Please use this IC within the stated maximum ratings. Operation beyond these limits may cause degrading or
2. When a resistor is connected between the V
3. When a resistor is connected between the V
4. With a resistor connected between the V
5. In order to stabilise the IC's operations, please ensure that V
6. Please use N-ch open drains configuration, when a resistor R
(1) Output current oscillation with the CMOS output configuration
When the voltage applied at IN rises, release operations commence and the detector's output voltage increases.
(2) Oscillation as a result of through current
Oscillation may occur with this " release - detect - release " repetition.
R
Voltage Drop
Load current (I
between the input (IN) and the V
to a fall in the voltage level at the V
operations will commence. Following detect operations, load current flow will cease and since voltage drop at R
will disappear, the voltage level at the V
Further, this condition will also appear via means of a similar mechanism during detect operations.
Since the XC61C series are CMOS IC
Since hysteresis exists during detect operations, oscillation is unlikely to occur.
permanent damage to the device.
occur as a result of voltage drops at R
N-ch output configurations, oscillation may occur as a result of through current at the time of voltage release even
if load current (I
IC's supply current flowing through the V
than several μ sec / V.
source.
In such cases, please ensure that R
( during release and detect operations ). Consequently, oscillation is liable to occur as a result of drops in voltage
at the through current's resistor (R
IN x
I
OUT
Diagram 1: Oscillation in relation to output current
IN
R
IN
OUT
OUT
) will flow at R
) does not exist. ( refer to the Oscillation Description (2) below )
V
XC61CC Series
IN
V
SS
V
IN
OUT
L
IN
. Because a voltage drop ( R
pin, the load current will flow via the IC's V
IN
IN
) during release voltage operations. ( refer to diagram 2 )
pin. When the V
IN
is less than 10kΩ and that C is more than 0.1μF.
S
IN
, through current will flow when the IC's internal circuit switching operates
if load current (I
IN
IN
pin will rise and release operations will begin over again.
pin.
pin and the input, detect and release voltage will rise as a result of the
IN
IN
pin and the input with CMOS output configurations, oscillation may
pin and the input with CMOS output configurations, irrespective of
R
IN
L
pin voltage level falls below the detect voltage level, detect
OUT
I
OUT
) exists. ( refer to the Oscillation Description (1) below )
IN
Voltage Drop
pin's input frequency's rise and fall times are more
R
IN
IN
IN
x I
x I
Diagram 2: Oscillation in relation to through current
is connected between the V
SS
OUT
IN
) is produced at the R
R
Diagram: Circuit using an input resistor
IN
IN
pin. The voltage drop will also lead
R
C
IN
V
XC61CC Series
XC61CN Series
IN
XC61CN Series
V
IN
V
SS
V
IN
V
SS
I
（Includes Current）
OUT
SS
IN
resistor, located
*
V
pin and power
OUT
IN
XC61C
Series
139
2