XC6132 Series
ETR02032-001
Delay capacitor adjustable voltage detectors with sense pin isolation,
surge voltage protection and HYS external adjustment
■GENERAL DESCRIPTION
The XC6132 series are ultra-small delay capacitor adjustable type voltage detectors that have high accuracy and sense pin
isolation. High accuracy and a low supply current are achieved by means of a CMOS process, a highly accurate reference
power supply, and laser trimming technology.
The sense pin is isolated from the power input pin to enable monitoring of the voltage of another power supply. Output can
be maintained in the detection state even if the voltage of the power supply that is monitored drops to 0V. The sense pin is
also suitable for detecting high voltages, and the detection and release voltage can be set as desired using external
resistors. An internal surge voltage protection circuit and an internal delay circuit are also provided.
By connecting a capacitor to the Cd/MRB pin, any release delay time and detect delay time can be set and the pin can also
be used as a manual reset pin.
The HYS external adjustment pin can be used to establish a sufficient hysteresis width.
■FEATURES
Operating Ambient Temperature
Operating voltage range
Detect voltage range
Detect voltage accuracy
(Ta=25℃)
■APPLICATIONS
●Microcontroller reset and malfunction monitoring
●Battery voltage monitoring
: -40℃~+125℃
: 1.6V~6.0V
: 0.8V~2.0V
: ±18mV(VDF<1.5V)
: ±1.2%(1.5V≦VDF≦2.0V)
●System power-on reset
●Power failure detection
: ±36mV(VDF<1.5V)
: ±2.7%(1.5V≦VDF≦2.0V)
Detect voltage accuracy
(Ta=-40~125℃)
: ±50ppm/℃(TYP.)
: VDF×0.1%(TYP.)
: Yes
Temperature Characteristics
Hysteresis width
Adjustable Pin for Hysteresis Width
Low supply current
: 1.28μA(TYP.)
VIN=1.6V(At detection)
: 1.65μA(TYP.)
VIN=6.0V(At release)
: Yes (For details, refer to
FUNCTION CHART)
: CMOS or Nch open drain
Manual reset function
Output type
: H level or L level at detection
Output logic
: Release delay / detection delay
can be set in 5 time ratio options
(For details, refer to Selection Guide).
: Includes a surge voltage protection
function
Delay capacitance pin
Sense pin
: USP-6C,SOT-26
Packages
: EU RoHS compliant, Pb free
Environment friendly
■TYPICAL APPLICATION CIRCUIT ■TYPICAL PERFORMANCE
CHARACTERISTICS
+B
VDD
VIN=3.3V
VSEN=0V→10V→0V
R2=100kΩ、R3=330kΩ
XC6132C10E
R3
VIN
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
R1
HYS
VSEN
Rpull(*1)
RESET
RESETB
R2
Cd/MRB
RESET
SW
Cd
VSS
GND
Battery (+B) voltage monitoring: Detects high voltage
via R1/R2 resistance division.
0
1
2
3
4
5
6
7
8
9
10
Voltage Sense : VSEN(V)
R1=330kΩ
A hysteresis width can be added as desired by
connecting R3 between the VSEN and HYS pins
(For details, refer to OPERATIONAL DESCRIPTION).
OPEN
R1=560kΩ
1/30