Datasheet
Table Of Contents

LM5069
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SNVS452D –SEPTEMBER 2006–REVISED MAY 2013
ABSOLUTE MAXIMUM RATINGS
(1)(2)
VIN to GND
(3)
-0.3V to 100V
SENSE, OUT, PGD to GND -0.3V to 100V
GATE to GND
(3)
-0.3V to 100V
UVLO to GND -0.3V to 100V
OVLO to GND -0.3V to 7V
VIN to SENSE -0.3V to +0.3V
ESD Rating
(4)
Human Body Model 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 ensure specific performance limits. For ensured specifications and conditions
see the Electrical Characteristics.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and
specifications.
(3) The GATE pin voltage is typically 12V above VIN when the LM5069 is enabled. Therefore the Absolute Maximum Ratings for VIN
(100V) applies only when the LM5069 is disabled, or for a momentary surge to that voltage since the Absolute Maximum Rating for the
GATE pin is also 100V.
(4) The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
OPERATING RATINGS
(1)
VIN Supply Voltage +9.0V to 80V
PGD Off Voltage 0V to 80V
Junction Temp. Range −40°C to +125°C
(1) For detailed information on soldering plastic VSSOP packages refer to the SNOA549 available from Texas Instruments.
ELECTRICAL CHARACTERISTICS
Limits in standard type are for T
J
= 25°C only; limits in boldface type apply over the junction temperature (T
J
) range of -40°C
to +125°C. Minimum and Maximum limits are specified through test, design, or statistical correlation. Typical values represent
the most likely parametric norm at T
J
= 25°C, and are provided for reference purposes only. Unless otherwise stated the
following conditions apply: VIN = 48V.
Symbol Parameter Conditions Min. Typ. Max. Units
Input (VIN pin)
I
IN-EN
Input Current, enabled UVLO > 2.5V and OVLO < 2.5V 1.3 1.6 mA
I
IN-DIS
Input Current, disabled UVLO <2.5V or OVLO >2.5V 480 650 µA
POR
IT
Power On Reset threshold at VIN to trigger VIN Increasing 7.6 8.0 V
insertion timer
POR
EN
Power On Reset threshold at VIN to VIN increasing 8.4 9.0 V
enable all functions
POR
EN-HYS
POR
EN
hysteresis VIN decreasing 90 mV
OUT pin
I
OUT-EN
OUT bias current, enabled OUT = VIN, Normal operation 11 µA
I
OUT-DIS
OUT bias current, disabled
(1)
Disabled, OUT = 0V, SENSE = VIN 50
UVLO, OVLO pins
UVLO
TH
UVLO threshold 2.45 2.5 2.55 V
UVLO
HYS
UVLO hysteresis current UVLO = 1V 12 21 30 µA
UVLO
DEL
UVLO delay Delay to GATE high 55 µs
Delay to GATE low 11
UVLO
BIAS
UVLO bias current UVLO = 48V 1 µA
OVLO
TH
OVLO threshold 2.40 2.5 2.60 V
OVLO
HYS
OVLO hysteresis current OVLO = 2.6V 12 21 30 µA
(1) OUT bias current (disabled) due to leakage current through an internal 1.0 MΩ resistance from SENSE to VOUT.
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