LM3409MY-NOPB Datasheet, PDF (3/43 Pages) Texas Instruments – PFET Buck Controller for High Power LED Drivers

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
VIN to VCC, PGATE
VIN to PGATE
VIN to CSP, CSN
COFF to GND
COFF current
IADJ Current
Junction Temperature
Storage Temperature Range
ESD Rating ⁽³⁾
Soldering Information
LM3409/09N/09HV
LM3409Q/09QHV
Lead Temperature (Soldering, 10sec)
Infrared/Convection Reflow (15sec)
-0.3V to 45V
(76V LM3409HV/09QHV)
-0.3V to 7V
-2.8V for 100ns
9.5V for 100ns
-0.3V to 0.3V
-0.3V to 4V
±1 mA continuous
±5 mA continuous
150°C
-65°C to 125°C
1 kV
2 kV
260°C
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
Junction Temperature Range
6V to 42V
(75V LM3409HV/09QHV)
−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
current threshold⁽³⁾
A_ADJ
V_ADJ to V_CSP – V_CSN threshold
gain
V_ADJ-OC
IADJ pin open circuit voltage
I_ADJ
IADJ pin current
t_DEL
CSN pin falling delay
SYSTEM CURRENTS
V_ADJ = 1.0V
V_ADJ = V_ADJ-OC
0.1 < V_ADJ < 1.2V
V_ADJ = V_ADJ-OC
CSN fall - PGATE rise
188
198
208
mV
231
246
261
0.2
V/V
1.189 1.243 1.297
V
3.8
5
6.4
µA
38
ns
I_IN
I_SD
PFET DRIVER
Operating current
Shutdown hysteresis current
Not switching
EN = 0V
2
mA
110
µA
(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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