LM3410, LM3410Q
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SNVS541G –OCTOBER 2007–REVISED MAY 2013
Table 3. Pin Descriptions - 8-Pin MSOP-PowerPad
Pin
1
Name
-
Function
No Connect
2
PGND
VIN
Power ground pin. Place PGND and output capacitor GND close together.
Supply voltage for power stage, and input supply voltage.
3
Dimming and shutdown control input. Logic high enables operation. Duty Cycle from 0 to 100%. Do not allow this pin
to float or be greater than VIN + 0.3V.
4
DIM
5
6
7
8
FB
AGND
SW
-
Feedback pin. Connect FB to external resistor divider to set output voltage.
Signal ground pin. Place the bottom resistor of the feedback network as close as possible to this pin and pin 5
Output switch. Connect to the inductor, output diode.
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
plane.
DAP
GND
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.
(1)(2)
Absolute Maximum Ratings
VIN
-0.5V to 7V
-0.5V to 26.5V
-0.5V to 3.0V
-0.5V to 7.0V
2kV
SW Voltage
FB Voltage
DIM Voltage
ESD Susceptibility
(3)
Human Body Model
(4)
Junction Temperature
Storage Temp. Range
Soldering Information
150°C
-65°C to 150°C
220°C
Infrared/Convection Reflow (15sec)
(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 kΩ 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.
(1)
Operating Ratings
VIN
2.7V to 5.5V
0V to VIN
(2)
VDIM
VSW
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) Do not allow this pin to float or be greater than VIN +0.3V.
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