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PT7M6426CLTA3EX

Description
Supervisory Circuits Ultralow pwr Voltage detector and MPS
CategoryPower/power management    The power supply circuit   
File Size329KB,7 Pages
ManufacturerPericom Semiconductor Corporation (Diodes Incorporated)
Websitehttps://www.diodes.com/
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Supervisory Circuits Ultralow pwr Voltage detector and MPS

PT7M6426CLTA3EX Parametric

Parameter NameAttribute value
MakerPericom Semiconductor Corporation (Diodes Incorporated)
package instructionLSSOP,
Reach Compliance Codecompliant
ECCN codeEAR99
Other featuresTHRESHOLD VOLTAGE IS 2.6V
Adjustable thresholdNO
Analog Integrated Circuits - Other TypesPOWER SUPPLY SUPPORT CIRCUIT
JESD-30 codeR-PDSO-G3
length2.92 mm
Number of channels1
Number of functions1
Number of terminals3
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Package body materialPLASTIC/EPOXY
encapsulated codeLSSOP
Package shapeRECTANGULAR
Package formSMALL OUTLINE, LOW PROFILE, SHRINK PITCH
Maximum seat height1.25 mm
Maximum supply voltage (Vsup)5.5 V
Minimum supply voltage (Vsup)1.2 V
Nominal supply voltage (Vsup)3 V
surface mountYES
Temperature levelINDUSTRIAL
Terminal formGULL WING
Terminal pitch0.95 mm
Terminal locationDUAL
width1.6 mm
PT7M7433/34/35
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
P
Supervisory Circuit
Features
User-Adjustable Low/High Thresholds with 615mV
Internal Reference
Low Current (1.5μA typ)
PT7M7427xx
PT7M7428xx
Single Low-Battery Outputs
LBO
Push-Pull LBO, Open-Drain LBO and
1
Open-Drain
LBO options
GND
90ms Minimum LBO Timeout Period
Immune to Short Battery Voltage Transients
2
BATT
Description
SOT23-3
-40° to + 85° Operating Temperature Range
C
C
SOT23-5
PT7M7430xx
PT7M7431xx
Application
Monitoring lithiumion (Li+) cells or multicell alkaline/
1 GND
LBOL
NiCd/ NiMH power supplies.
2
NC
The PT7M7433/34/35 are single-level battery monitors
with internal hysteresis. These devices are offered with
single low-battery output indicators which can be used
PT7M7429xx
to indicate three battery conditions: good (operate
1 LBO
system in normal mode), weak (operate system in low-
power mode), or empty (disable the system).
3
The PT7M7433/34/35 are
GND 3
user-adjustable threshold
voltages permitting the user to select the hysteresis
2 BATT
range and consequently the sensitivity of the system to
noise. A wide hysteresis range also prevents chattering
that can result due to battery recovery after load
PT7M7432xx
removal.
5
1
GND
LBOL
5
2
NC
3
LBOH
BATT
4
3
LBOH
BATT
4
Pin Configuration
PT7M7433
PT7M7434
1
HTHIN
VCC
5
1
PT7M7435
HTHIN
VCC
5
1
PT7M7479H
PT7M7479L
HTH
VDD
5
2
GND
2
GND
2
GND
RST
4
(/RST)
3
LTHIN
LBO
4
3
LTHIN
LBO
4
3
LTH
SOT23-6
Pin Description
Pin
1
2
3
4
5
Name
HTHIN
GND
LTHIN
LBO/LBO
VCC
1
PT7M7436
PT7M7437
PT7M7438
1 HTHIN VCC
Monitor Input.
A
PT7M3806M
PT7M3806E
Type
I
P
2
I
3
O
P
Description
6
1 RSTSENSE HSENSE 6
resistor-divider network sets the high
threshold associated with LBO/LBO.
GND
Ground
5
LBOH
2 GND
2 GND
LSENSE 5
LBOH 5
LTH Threshold Monitor Input.
A resistor-divider network sets the low
LBO/LBO.
LTHIN
threshold associated with
LTHIN LBOL 4
LBOL 4
3
3 RESET
VCC 4
Low-Battery Output.
LBO /LBO is asserted when LTHIN drops below V
LTHIN
,
and remains asserted for at least 90ms HTHIN rises above V
HTHIN
. Push-pull
output for PT7M7433. Open drain output for PT7M7434/35.
HTHIN
HTH Threshold
VCC 6
Supply Voltage.
Device power supply for adjustable threshold versions.
12-07-0002
1
PT0213-4
07/05/12
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