Datasheet
LM3409, LM3409HV, LM3409-Q1
www.ti.com
SNVS602J –MARCH 2009–REVISED MAY 2013
Absolute Maximum RatingsLM3409/09N/09Q/09HV/09QHV
(1)(2)
VIN, EN, UVLO to GND -0.3V to 45V
(76V LM3409HV/09QHV)
VIN to VCC, PGATE -0.3V to 7V
VIN to PGATE -2.8V for 100ns
9.5V for 100ns
VIN to CSP, CSN -0.3V to 0.3V
COFF to GND -0.3V to 4V
COFF current ±1 mA continuous
IADJ Current ±5 mA continuous
Junction Temperature 150°C
Storage Temperature Range -65°C to 125°C
ESD Rating
(3)
LM3409/09N/09HV 1 kV
LM3409Q/09QHV 2 kV
Soldering Information Lead Temperature (Soldering, 10sec) 260°C
Infrared/Convection Reflow (15sec) 260°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Operating Ratings is not implied. The recommended Operating Ratings indicate
conditions at which the device is functional and the device should not be operated beyond such conditions.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Operating Ratings (LM3409/09N/09Q/09HV/09QHV)
(1)
VIN 6V to 42V
(75V LM3409HV/09QHV)
Junction Temperature Range −40°C to +125°C
(1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Operating Ratings is not implied. The recommended Operating Ratings indicate
conditions at which the device is functional and the device should not be operated beyond such conditions.
Electrical Characteristics LM3409/09N/09Q/09HV/09QHV
V
IN
= 24V unless otherwise indicated. Typicals and limits appearing in plain type apply for T
A
= T
J
= +25°C
(1)
. Limits
appearing in boldface type apply over full Operating Temperature Range. Datasheet min/max specification limits are
specified by design, test, or statistical analysis.
Symbol Parameter Conditions Min
(2)
Typ
(1)
Max
(2)
Units
PEAK CURRENT COMPARATOR
V
CST
V
CSP
– V
CSN
average peak V
ADJ
= 1.0V 188 198 208 mV
current threshold
(3)
V
ADJ
= V
ADJ-OC
231 246 261
A
ADJ
V
ADJ
to V
CSP
– V
CSN
threshold 0.1 < V
ADJ
< 1.2V 0.2 V/V
gain V
ADJ
= V
ADJ-OC
V
ADJ-OC
IADJ pin open circuit voltage 1.189 1.243 1.297 V
I
ADJ
IADJ pin current 3.8 5 6.4 µA
t
DEL
CSN pin falling delay CSN fall - PGATE rise 38 ns
SYSTEM CURRENTS
I
IN
Operating current Not switching 2 mA
I
SD
Shutdown hysteresis current EN = 0V 110 µA
PFET DRIVER
(1) Typical values represent most likely parametric norms at the conditions specified and are not ensured.
(2) Min and Max limits are 100% production tested at 25°C. Limits over the operating temperature range are specified through correlation
using Statistical Quality Control (SQC) methods. Limits are used to calculate Texas Instrument's Average Outgoing Quality Level
(AOQL).
(3) The current sense threshold limits are calculated by averaging the results from the two polarities of the high-side differential amplifier.
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