LM3445MM/NOPB National Semiconductor, LM3445MM/NOPB Datasheet

LM3445MM/NOPB

Manufacturer Part Number

LM3445MM/NOPB

Description

IC LED DRIVER TRIAC DIMM 10-MSOP

Manufacturer

National Semiconductor

Series

PowerWise®r

Type

Triac Dimmabler

Datasheets

1.LM3445MMNOPB.pdf (26 pages)

2.LM3445MMNOPB.pdf (1 pages)

Specifications of LM3445MM/NOPB

Mfg Application Notes

LM3445 Reference Design

Constant Current

Yes

Topology

PWM, Step-Down (Buck)

Number Of Outputs

Internal Driver

Type - Secondary

High Brightness LED (HBLED)

Frequency

30kHz ~ 1MHz

Voltage - Supply

8 V ~ 12 V

Mounting Type

Surface Mount

Package / Case

10-MSOP, Micro10™, 10-uMAX, 10-uSOP

Operating Temperature

-40°C ~ 125°C

Current - Output / Channel

Internal Switch(s)

Yes

Efficiency

85%

For Use With

LM3445-220VEVAL - BOARD EVAL LM3445 220VLM3445-120VSMEV - BOARD EVAL LM3445 110VLM3445TRIACEVAL - BOARD EVAL LM3445MM

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Voltage - Output

Other names

LM3445MMTR

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

LM3445MM/NOPB

Manufacturer:

Quantity:

7 000

Company:

H&T Electronics

Part Number:

LM3445MM/NOPB

Quantity:

10 000

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Best-in-Class Dimming

Performance. High Efﬁ ciency.

High Performance, TRIAC Dimmable LED Driver

National’s industry-leading TRIAC dimmable ofﬂ ine LED driver solution is perfect for

any application where an LED driver must interface to a standard triac wall dimmer.

National’s new TRIAC dimmable LED driver delivers a wide, uniform dimming range free

of ﬂ icker, best-in-class dimming performance, and high efﬁ ciency—all while maintaining

ENERGY STAR

Full Range Dimming Capability

National’s TRIAC dimmable LED

driver offers 100:1 full range

dimming capability, going from

full light to nearly imperceptible

light in a continuous range

without being extinguished,

and maintains a constant

current to large strings of

LEDs driven in series off of a

standard line voltage.

power factor requirements in a typical application.

Easy To Use

National’s

LED driver enables a direct

replacement of incandescent

or halogen lamp systems

that are currently interfaced

to a

having to change the original

infrastructure or sacriﬁ ce

performance. In addition,

the new

LED driver is available in

WEBENCH

to allow for easy and quick

design in.

TRIAC Wall

TRIAC

Dimmer

TRIAC

dimmer without

LED Designer

dimmable

TRIAC Dimmable

LED Driver

LM3445

Uniform Dimming

Without Flicker

National’s

LED driver allows master-slave

operation control in multi-chip

solutions which enables a

single

multiple strings of LEDs with

smooth consistent dimming,

free of ﬂ icker.

TRIAC

dimmer to control

dimmable

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