XC6130/XC6131
Series
Watchdog Timeout Period Externally Adjustable Voltage Detector
ETR02026-002
■
GENERAL DESCRIPTION
The XC6130/XC6131 series are voltage detectors with a watchdog function. The watchdog timeout time and release delay
time can be set as desired using a single external capacitor. These voltage detectors are used for microprocessor monitoring,
and when the power voltage reaches the detect voltage or an L→H pulse is not input to the watchdog pin within the watchdog
timeout time, an L level signal is output from the RESETB pin.
The XC6130 series has a manual reset function. When the manual reset pin is set to Low level at any desired timing, an L level
signal is output from the RESETB pin.
The XC6131 series has a watchdog ON/OFF function. By setting the EN pin to L level, the watchdog function can be turned
OFF while the voltage detector that monitors the power voltage continues to operate.
The MRB pin and EN pin are pulled up internally to V
IN
, and thus these pins can be left open when not used.
■APPLICATIONS
●Microprocessor
reset and malfunction monitoring circuitry
●Memory
battery backup circuits
●Power-on
reset circuits
●Power
failure detection
■FEATURES
Operating Ambient Temperature
: -40℃½+125℃
Operating Voltage Range
: 1.5V½6.0V
Detect Voltage Range
: 1.6V½5.0V (±1.0％)
Hysteresis Width
: V
DFL
×5％
Temperature Characteristics
: ±50ppm/℃
Output Configuration
: N-channel open drain output
Low Power Consumption
: 8.1μA Detect
9.8μA Release
2.5μA Release (EN=L)
Function
: Manual Reset (XC6130)
: Watchdog function OFF (XC6131)
WD Timeout Time
: 100ms (Cd=0.1μF)
Release Delay Time
: 100ms (Cd=0.1μF) (at power on)
10ms (Cd=0.1μF)
(After Watchdog Timeout)
Package
: SOT-26
Environmentally Friendly
: EU RoHS compliant, Pb free
■TYPICAL
APPLICATION CIRCUIT
■TYPICAL
PERFORMANCE
CHARACTERISTICS
XC6130 Series
XC6131A301MR-G
14
12
Supply Current:ISS(μA)
10
8
6
4
2
0
0
1
2
3
4
Input Voltage:VIN(V)
5
6
WD Function ON
WD Function OFF
Cd=0.01μF, WD=RESETB=OPEN, Ta=25℃
EN=VSS(WD Function OFF)
EN=VIN (WD Function ON)
XC6131 Series
* The above values do not include the current that flows to the EN pull-up resistance.
1/30
XC6130/XC6131
Series
■PRODUCT
CLASSIFICATION
●
Ordering Information
XC6130①②③④⑤⑥-⑦
DESIGNATOR
①
②③
④
⑤⑥-⑦
(*1)
(*2)
ITEM
TYPE
Detect Voltage
Detect Accuracy
Package (Order Unit)
SYMBOL
A
16½50
1
MR-G
DESCRIPTION
MRB pin With pull-up resistor
e.g. 1.6V
→
②=1, ③=6
±1.0％
SOT-26 (3000pcs/Reel)
(*2)
(*1)
The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
The SOT-26 reels are shipped in a moisture-proof packing.
XC6131①②③④⑤⑥-⑦
DESIGNATOR
①
②③
④
⑤⑥-⑦
(*1)
(*2)
ITEM
TYPE
Detect Voltage
Detect Accuracy
Package (Order Unit)
SYMBOL
A
B
16½50
1
MR-G
DESCRIPTION
EN pin With pull up resistor
ENB pin With pull down resistor
e.g. 1.6V
→ ②=1, ③=6
±1.0％
SOT-26 (3000pcs/Reel)
(*2)
(*1)
The “-G” suffix denotes Halogen and Antimony free as well as being fully EU RoHS compliant.
The SOT-26 reels are shipped in a moisture-proof packing.
]
4/30
XC6130/XC6131
Series
■PIN
CONFIGURATION
XC6130 series
XC6131 series
■PIN
ASSIGNMENT
XC6130 Series
PIN NUMBER
SOT-26
1
2
3
4
5
6
XC6131 Series
PIN NUMBER
SOT-26
1
2
3
4
5
6
PIN NAME
WD
EN
ENB
V
IN
RESETB
V
SS
Cd
FUNCTIONS
Watchdog Input
Watchdog ON/OFF Control (XC6131A)
Watchdog ON/OFF Control (XC6131B)
Power Input
Reset Output
Ground
Adjustable Pin for Release Delay
Time/Watchdog Timeout
PIN NAME
WD
MRB
V
IN
RESETB
V
SS
Cd
FUNCTIONS
Watchdog Input
Manual Reset Input
Power Input
Reset Output
Ground
Adjustable Pin for Release Delay
Time/Watchdog Timeout
5/30
微控制器 MCU
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