LM3409, LM3409HV, LM3409-Q1

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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

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 k

Ω 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

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

Units

PEAK CURRENT COMPARATOR

188

198

208

mV

231

246

261

0.2

V/V

gain

IADJ pin open circuit voltage

1.189

1.243

1.297

V

IADJ pin current

3.8

5

6.4

µA

CSN pin falling delay

CSN fall - PGATE rise

38

ns

SYSTEM CURRENTS

Operating current

Not switching

2

mA

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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