Connection Diagram

20137501

10-Lead LLP

See NS Number SDC10A

Ordering Information

Ordering Number

Package Type

NSC Package Drawing

Supplied As

LM5105SD

LLP-10

SDC10A

1000 shipped as Tape & Reel

LM5105SDX

LLP-10

SDC10A

4500 shipped as Tape & Reel

Pin Descriptions

Pin

Name

Description

Application Information

1V

DD

Positive gate drive supply

Decouple VDD to VSS using a low ESR/ESL capacitor, placed as

close to the IC as possible.

2

HB

High side gate driver

bootstrap rail

Connect the positive terminal of bootstrap capacitor to the HB pin

and connect negative terminal to HS. The Bootstrap capacitor

should be placed as close to IC as possible.

3

HO

High side gate driver

output

Connect to the gate of high side N-MOS device through a short,

low inductance path.

4

HS

High side MOSFET source

connection

Connect to the negative terminal of the bootststrap capacitor and to

the source of the high side N-MOS device.

5

NC

Not Connected

6

RDT

Deadtime programming pin

A resistor from RDT to VSS programs the turn-on delay of both the

high and low side MOSFETs. The resistor should be placed close

to the IC to minimize noise coupling from adjacent PC board traces.

7

EN

Logic input for driver

Disable/Enable

TTL compatible threshold with hysteresis. LO and HO are held in

the low state when EN is low.

8

IN

Logic input for gate driver

TTL compatible threshold with hysteresis. The high side MOSFET

is turned on and the low side MOSFET turned off when IN is high.

9V

SS

Ground return

All signals are referenced to this ground.

10

LO

Low side gate driver output

Connect to the gate of the low side N-MOS device with a short, low

inductance path.

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