LM3410, LM3410Q

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SNVS541G – OCTOBER 2007 – REVISED MAY 2013

Table 3. Pin Descriptions - 8-Pin MSOP-PowerPad

Pin

Name

Function

1

-

No Connect

2

PGND

Power ground pin. Place PGND and output capacitor GND close together.

3

VIN

Supply voltage for power stage, and input supply voltage.

Dimming and shutdown control input. Logic high enables operation. Duty Cycle from 0 to 100%. Do not allow this pin

4

DIM

to float or be greater than VIN + 0.3V.

5

FB

Feedback pin. Connect FB to external resistor divider to set output voltage.

6

AGND

Signal ground pin. Place the bottom resistor of the feedback network as close as possible to this pin and pin 5

7

SW

Output switch. Connect to the inductor, output diode.

8

-

No Connect

Signal and Power ground. Connect to pin 2 and pin 6 on top layer. Place 4-6 vias from DAP to bottom layer GND

DAP

GND

plane.

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam

during storage or handling to prevent electrostatic damage to the MOS gates.

Absolute Maximum Ratings

(1) (2)

-0.5V to 7V

SW Voltage

-0.5V to 26.5V

FB Voltage

-0.5V to 3.0V

DIM Voltage

-0.5V to 7.0V

Human Body Model

2kV

150°C

Storage Temp. Range

-65°C to 150°C

Soldering Information

Infrared/Convection Reflow (15sec)

220°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 does 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 TI 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. Test method is per JESD22-A114.

(4)

Thermal shutdown will occur if the junction temperature exceeds the maximum junction temperature of the device.

Operating Ratings

(1)

2.7V to 5.5V

(2)

3V to 24V

Junction Temperature Range

-40°C to 125°C

Power Dissipation

(Internal) SOT-23

400 mW

(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 does not ensure specific performance limits. For ensured specifications and conditions,

see the Electrical Characteristics.

(2)

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