XC6119 TOREX [Torex Semiconductor], XC6119 Datasheet - Page 7

• Manufacturer Part Number: XC6119
• Description: Voltage Detector with Delay Time Adjustable
• Manufacturer: TOREX [Torex Semiconductor]

A typical circuit example is shown in Figure 1, and the timing chart of Figure 1 is shown in Figure 2 on the next page.
② When the input pin voltage keeps dropping and becomes equal to the detect voltage (V
③ While the input pin voltage keeps below the detect voltage, and 0.7V or more, the delay capacitance is discharged to the
④ While the input pin voltage drops to 0.7V or less and it increases again to 0.7V or more, the output voltage may not be able to
■OPERATIONAL EXPLANATION
① As an early state, the input voltage pin is applied sufficiently high voltage to the release voltage and the delay capacitance
(Cd) is charged to the input pin voltage. While the input pin voltage (V
(V
delay capacitance discharge is turned ON, and starts to discharge the delay capacitance. For the internal circuit, which
uses the delay capacitance pin as power input, the reference voltage operates as a comparator of VIN, and the output
voltage changes into the “Low” level (≦V
to the V
ground voltage (=V
maintain the “Low” level. Such an operation is called “Unspecified Operation”, and voltage which occurs at the output pin
voltage is defined as unstable operating voltage (V
IN
> V
DF
OUT
), the output voltage (V
of “Low” level (especially, when the Cd pin is not connected: t
SS
) level. Then, the output voltage (V
OUT
) keeps the “High” level (=V
Figure 2: The timing chart of Figure 1
IN
N-ch transictor for the delay
Capacitance discharge.
Figure 1: Typical application circuit example
×0.1). The detect delay time (t
UNS
).
OUT
The circuit which uses the delay
Capacitance pin as power input.
) maintains the “Low” level.
IN
).
Delay Capacitor
IN
DF0
) starts dropping to reach the detect voltage (V
DF
).
) is defined as time which ranges from V
IN
Delay Capacitance Pin Voltage: V
Delay Capacitance Pin Threshold Voltage: V
Output Pin Voltage: V
Input Voltage: V
Release Voltage: V
Minimum Operationg Voltage (0.7V)
Detect Voltage: V
= V
DF
), an N-ch transistor for the
IN
DF
DF
+V
OUT
XC6119
HYS
Series
IN
7/16
=V
DF
DF
CD
)
TCD