Használati útmutató Microchip MAQ3203YM

Olvassa el alább 📖 a magyar nyelvű használati útmutatót Microchip MAQ3203YM (23 oldal) a nincs kategorizálva kategóriában. Ezt az útmutatót 8 ember találta hasznosnak és 4.5 felhasználó értékelte átlagosan 4.1 csillagra

Oldal 1/23
MAQ3203
High- Brightness LED Driver Controller
with High Side Current Sense-
Micrel Inc. • 2180 Fortune Drive Jose, CA 95131 • USA • tel +1 (408) 944 0800 • fax + 1 (408) 474 1000 • San - - http://www.micrel.com
April
20, 2015
Revision 1.2
General Description
The MAQ3203 is a hysteretic, step down, constant- -
current, High Brightness LED (HB LED) driver. It provides -
an ideal solution for interior/exterior lighting, architectural
and ambient lighting, LED bulbs, and other general
illumination applications.
The MAQ3203 is well suited for lighting applications
requiring a wide-input voltage range. The hysteretic control
gives good supply rejection and fast response during load
transients and PWM dimming. The high side current -
sensing and on chip current sense amplifier delivers LED - -
current with 5% accuracy. An external high side current±- -
sense resistor is used to set the output current.
The MAQ3203 offers a dedicated PWM input (DIM) which
enables a wide range of pulsed dimming. A high-frequency
switching operation up to 1.5MHz allows the use of smaller
external components minimizing space and cost. The
MAQ3203 offers frequency dither feature for EMI control.
The MAQ3203 perates o over a junction temperature from
− ° + °40 C to 125 C 8-and is available in an pin SOIC
p -ackage. The MAQ3203 is AEC Q100 qualified for
automotive applications.
Datasheets and support documentation are available on
Micrel’s web site at: www.micrel.com.
Features
-AEC Q100 qualified
4.5V to 42V input voltage range
• > High efficiency ( 90%)
• ± 5% LED current accuracy
Dither enabled for low EMI
- High side current sense
Dedicated dimming control input
Hysteretic control (no compensation!)
Up to 1.5MHz switching frequency
Adjustable constant LED current
- Over temperature protection
• − ° + ° 40 C to 125 C junction temperature range
Applications
Automotive lighting
Industrial lighting
Typical Application
MAQ3203 Step- Down LED Driver

Termékspecifikációk

Márka: Microchip
Kategória: nincs kategorizálva
Modell: MAQ3203YM

Szüksége van segítségre?

Ha segítségre van szüksége Microchip MAQ3203YM, tegyen fel kérdést alább, és más felhasználók válaszolnak Önnek