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LM25066A データシート(PDF) 4 Page - Texas Instruments

部品番号 LM25066A
部品情報  System Power Management and Protection IC
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ホームページ  http://www.ti.com
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LM25066A データシート(HTML) 4 Page - Texas Instruments

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LM25066A
SNVS700F – DECEMBER 2010 – REVISED FEBRUARY 2013
www.ti.com
Absolute Maximum Ratings
(1)
VIN, SENSE to GND (2)
-0.3V to 24V
GATE, FB, UVLO/EN, OVLO, PGD to GND (2)
-0.3V to 20V
OUT to GND
-1V to 20V
SCL, SDA, SMBA, CL, CB, ADR0, ADR1, ADR2, VDD, VAUX, DIODE, RETRY to GND
-0.3V to 6V
VIN to SENSE
-0.3V to +0.3V
ESD Rating, Human Body Model(3)
2kV
Storage Temperature
-65°C to +150°C
Junction Temperature
+150°C
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and
conditions, see the Electrical Characteristics.
(2)
The GATE pin voltage is typically 7.5V above VIN when the LM25066A is enabled. Therefore the Absolute Maximum Rating of 24V for
VIN and SENSE apply only when the LM25066A is disabled or for a momentary surge to that voltage since the Absolute Maximum
Rating of the GATE pin is 20V.
(3)
The human body model is a 100 pF capacitor discharged through a 1.5 k
Ω resistor into each pin.
Operating Ratings
VIN, SENSE, OUT voltage
2.9V to 17V
VDD
2.9V to 5.5V
Junction Temperature
−40°C to +125°C
Electrical Characteristics
Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature (TJ) range of -40°C
to +85°C unless otherwise stated. Minimum and Maximum limits are guaranteed through test, design, or statistical correlation.
Typical values represent the most likely parametric norm at TJ = 25°C, and are provided for reference purposes only. Unless
otherwise stated the following conditions apply: VIN = 12V.
(1) (2)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Input (VIN Pin)
IIN-EN
Input Current, enabled
UVLO = 2V and OVLO = 0.7V
5.8
8
mA
POR
Power On Reset threshold at VIN
VIN increasing
2.6
2.8
V
PORHYS
POREN Hysteresis
VIN decreasing
150
mV
VDD Regulator (VDD pin)
VDD
IVDD = 5mA, VIN = 12V
4.3
4.5
4.7
V
IVDD = 5mA, VIN = 4.5V
3.5
3.9
4.3
V
VDDILIM
VDD Current Limit
25
45
mA
UVLO/EN, OVLO Pins
UVLOTH
UVLO threshold
VUVLO falling
1.147
1.16
1.173
V
UVLOHYS
UVLO hysteresis current
UVLO = 1V
18
23
28
µA
UVLODEL
UVLO delay
Delay to GATE high
8
µs
Delay to GATE low
20
UVLOBIAS
UVLO bias current
UVLO = 3V
1
µA
OVLOTH
OVLO threshold
VOVLO rising
1.141
1.16
1.185
V
OVLOHYS
OVLO hysteresis current
OVLO = 1V
-28
-23
-18
µA
OVLODEL
OVLO delay
Delay to GATE high
19
µs
Delay to GATE low
9
OVLOBIAS
OVLO bias current
OVLO = 1V
1
µA
Power Good (PGD pin)
PGDVOL
Output low voltage
ISINK = 2 mA
25
60
mV
(1)
Current out of a pin is indicated as a negative value.
(2)
All limits are guaranteed. All electrical characteristics having room temperature limits are tested during production at TA = 25°C. All hot
and cold limits are guaranteed by correlating the electrical characteristics to process and temperature variations and applying statistical
process control.
4
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