Datasheet
LM5068
SNVS254C –JANUARY 2004–REVISED MARCH 2013
www.ti.com
Absolute Maximum Ratings
(1)(2)
V
DD
(V
DD
to V
EE
) 100V
PWRGD (PWRGD to V
EE
) 100V
SENSE (SENSE to V
EE
) 8V
UV/OV (Clamped) (UV/OV to V
EE
) 8V
All Other Inputs to V
EE
16V
Junction Temperature (T
J
) +150°C
Storage Temperature (T
S
) -55°C to +150°C
Soldering Information
ESD Rating
(3)
2kV
(1) Absolute Maximum Ratings are limits beyond which damage to the device may occur. Operating Ratings are conditions under which
operation of the device is intended to be functional. For specifications and test 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 ESD rating of Pin 7 is 1.5kV. It is recommended that proper ESD precautions are taken to avoid performance degradation or loss of
functionality.
Operating Ratings
Supply Voltage Range (V
DD
) 10V to 90V
Junction Temp. Range −40°C to +105°C
Electrical Characteristics
Specifications in standard typeface are for T
J
= +25°C, and those in boldface type apply over the full operating junction
temperature range. Unless otherwise noted V
DD
− V
EE
= 48V.
Symbol Parameter Conditions Min Typ Max Units
V
DD
Supply
I
IN
Supply Current 0.82 1.3 mA
I
SD
Shutdown Current UV/OV = 0V 580 1000 µA
V
DD
− V
EE
Operating Supply Range 10 90 V
UV/OV Shutdown
V
UVS
V
DD
Under-voltage Shutdown 8.5 V
V
UVSH
V
DD
Under-voltage Shutdown 0.6 V
Hysteresis
V
UV
Under-voltage Comparator 2.45 2.5 2.55 V
Threshold
I
UVHCS
Under-voltage Hysteresis Current 18 20 22 µA
Source
V
OV
Over-voltage Comparator 2.45 2.5 2.55 V
Threshold
I
OVHCS
Over-voltage Hysteresis Current 18 20 22 µA
Sink
t
UVCD
UV Comparator Delay UV Low to Gate Low 1100 ns
t
OVCD
OV Comparator Delay OV High to Gate Low 500 ns
Current Limit Voltage
V
CB
Circuit Breaker Current Limit 40 50 60 mV
Voltage
V
AC
Analog Current Limit Voltage 80 100 120 mV
V
FDC
Fast Discharge Current Limit 150 200 250 mV
Voltage (Fast Gate Pull Down
Threshold)
Sense Input
I
SENSE
Sense Input Current V
SENSE
= 50mV -30 -15 µA
4 Submit Documentation Feedback Copyright © 2004–2013, Texas Instruments Incorporated
Product Folder Links: LM5068