APGRD004 Microchip Technology, APGRD004 Datasheet - Page 7

• Manufacturer Part Number: APGRD004
• Description: REF DESIGN MOD AUTO AMBNT LIGHT
• Manufacturer: Microchip Technology

Specifications of APGRD004

• Main Purpose: Lighting, RGB LED Controller
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MCP2021, PIC12F615
• Primary Attributes: 4 Tiny Boards, Each Have: RGB LED, LIN Transceiver, Voltage Regulator, MCU
• Secondary Attributes: LIN Commands are Interpreted to Control 16,383 Colors and 1,023 Dimming Levels
• Silicon Manufacturer: Microchip
• Silicon Core Number: APGDT001
• Kit Contents: 4 Ambient Lighting Modules, Documentation
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Adding Intelligence – PIC10F Solutions
LED lighting applications can benefit from the intelligence of
a MCU. The MCU can be used for a variety of tasks, including
the user interface, communication, battery status monitoring
and temperature measurement.
The addition of a MCU to a design does not have to be
complicated, space consuming, or expensive. Microchip offers the
PIC10F family of MCUs with devices that have 6 pins in a space
saving SOT-23 or 2 x 3 mm DFN style package. The oscillator and
reset circuitry are inside the device. Connect power, ground, and
you get four I/O pins that can be programmed to do anything you
want. It’s as simple as that.
The PIC10F pins can be used as analog or digital pins. Two
devices in the PIC10F family have analog comparator modules.
Two PIC10F devices are available with an 8-bit analog to digital
converter (ADC). There are only 33 assembly instructions to learn
in order to write code for the PIC10F. There are also C compilers
are available for the PIC10F family, if you prefer to write in a
high-level language.
PIC10F 6-Pin Microcontroller Family
www.microchip.com/lighting
LED Lighting Solutions
Device
PIC10F200
PIC10F202
PIC10F204
PIC10F206
PIC10F220
PIC10F222
Flash Program Memory
Words
256
512
256
512
256
512
RAM Bytes
Data
16
24
16
24
16
24
Provide Simple Dimming Control
One application for a MCU in LED lighting is brightness
control. A power LED can be dimmed by reducing the drive
current. However, this is not the most efficient way to
control the brightness of a LED. A power LED provides the
best efficiency at the maximum rated drive current. Better
efficiency can be obtained by turning the LED on and off
using a low frequency PWM signal. The PWM signal is
connected to the enable input of the SMPS control IC. The
LED is always driven at the maximum current level when it is
on.
The MCP1650 Multiple White LED Demo Board and the
MCP1650 3W White LED Demo Board both take advantage
of the 6-pin PIC10F206 MCU (see pages 5-7 for more
information). The PIC10F206 device provides the user button
interface and generates the PWM control signal for the
SMPS IC. The PIC10F206 has an internal oscillator and reset
circuit, so no external circuitry is required. The PIC10F206
device could also be used to linearize the brightness control
or monitor battery status in these applications.
Timer
8-Bit
Yes
Yes
Yes
Yes
Yes
Yes
(MC/MNY)
2 x 3 mm
8-TDFN
SOT-23 vs. MSOP and SOIC
Package Comparison
Analog Comparator
6-SOT (OT)
PIC10F2XX
3 x 3 mm
Module
Yes
Yes
LED Lighting Solutions Design Guide
–
–
–
–
8-MSOP (MS)
3 x 5 mm
Shown approximate size.
ADC Module
8-SOIC (SN)
5 x 6 mm
8-bit
Yes
Yes
–
–
–
–
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