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MIC3203YM

LED Driver IC 1 Output DC DC Controller Step-Down (Buck) PWM Dimming 8-SOIC

Manufacturer:

Microchip Technology, Inc
Mfr.Part #:

MIC3203YM
Datasheet:

MIC3203YM Datasheet (PDF)
Type:

DC DC Controller
Topology:

Step-Down (Buck)
Internal Switch(s):

No
Number of Outputs:

1
EDA/CAD Models:

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MIC3203YM 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 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 MIC3203 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 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.

Key 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 required)
Up to 1.5MHz switching frequency
Adjustable constant LED current
Over-temperature protection
-40°C to +125°C junction temperature range

Microchip Technology, Inc Original Stock

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)LED Drivers	Series	-
Type	DC DC Controller	Topology	Step-Down (Buck)
Internal Switch(s)	No	Number of Outputs	1
Voltage - Supply (Min)	4.5V	Voltage - Supply (Max)	42V
Voltage - Output	-	Current - Output / Channel	-
Frequency	1.5MHz	Dimming	PWM
Applications	Lighting	Operating Temperature	-40°C ~ 125°C (TJ)
Mounting Type	Surface Mount	Base Product Number	MIC3203