Microchip MIC3203 Manual

Microchip Ikke kategoriseret MIC3203

Læs gratis den danske manual til Microchip MIC3203 (28 sider) i kategorien Ikke kategoriseret. Denne vejledning er vurderet som hjælpsom af 21 personer og har en gennemsnitlig bedømmelse på 4.4 stjerner ud af 11 anmeldelser. Har du et spørgsmål om Microchip MIC3203, eller vil du spørge andre brugere om produktet?

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2019 Microchip Technology Inc. DS20006250A-page 1
MIC3203/MIC3203-1
Features
• 4.5V to 42V Input Voltage Range
• High Efficiency (>90%)
• ±5% LED Current Accuracy
• MIC3203: Dither Enabled for Low EMI
• MIC3203-1: Dither Disabled
• High-Side Current Sense
• Dedicated Dimming Control Input
• Hysteretic Control (No Compensation)
• Up to 1.5 MHz Switching Frequency
• Adjustable Constant LED Current
• Overtemperature Protection
• –40°C to +125°C Junction Temperature Range
Applications
• Architectural, Industrial, and Ambient Lighting
• LED Bulbs
• Indicators and Emergency Lighting
• Street Lighting
• Channel Letters
• 12V Lighting Systems (MR-16 Bulbs,
Under-Cabinet Lighting, Garden/Pathway
Lighting)
General Description
The MIC3203 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 MIC3203 is well suited for lighting applications that
require 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
comparator delivers LED current with ±5% accuracy.
An external high-side current-sense resistor is used to
set the output current.
The MIC3203 offers a dedicated PWM input (DIM) that
enables a wide range of pulsed dimming. A
high-frequency switching operation up to 1.5 MHz
allows the use of smaller external components
minimizing space and cost. The MIC3203 offers
frequency dither feature for EMI control.
The MIC3203 operates over a junction temperature
from –40°C to +125°C and is available in an 8-pin SOIC
package.
A dither disabled version MIC3203-1 is also available in
the same package as the MIC3203.
Package Type
MIC3203
8-Lead SOIC (M)
(Top View)
1VCC
CS
VIN
AGND
8 DRV
PGND
DIM
EN
7
6
5
2
3
4
High-Brightness LED Driver Controller with High-Side Current Sense

Produkt Specifikationer

Mærke: Microchip
Kategori: Ikke kategoriseret
Model: MIC3203

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