DF329

3-Phase Brushless DC Motor Controller

©Copyright 2019, PADAUK Technology Co., Ltd.

Page 3 of 17

PDK-DS-DF329-EN-V002 – Mar. 6, 2019

Table of Contents

1.

Key Features.................................................................................................................. 5

2.

DF329 Pin Assignment and Description ..................................................................... 6

3.

DC Characteristics ........................................................................................................ 7

3.1. AC/DC Device Characteristics

............................................................................................ 7

3.2. Absolute Maximum Ratings

................................................................................................ 8

3.3. Typical IHRC frequency deviation vs. VDD and temperature (calibrated to 16MHz)

.................. 8

3.4. Typical Operating Current vs. VDD and CLK=IHRC/n

........................................................... 8

3.5. Typical IO pull high resistance

............................................................................................ 9

3.6. Typical IO driving current (IOH) and sink current (IOL).............................................................. 9

3.7. Typical IO input high/low threshold voltage (VIH/VIL) .............................................................. 9

3.8. Timing charts for boot up conditions

.................................................................................. 10

4.

Block Diagram ............................................................................................................. 11

5.

Functional Description ............................................................................................... 11

5.1. Main Control

.................................................................................................................... 11

5.2. Current Detector

.............................................................................................................. 11

5.3. Voltage Detector

.............................................................................................................. 11

5.4. Motor Sequence Control

................................................................................................... 12

5.5. Position Detector

............................................................................................................. 12

5.6. Interface

......................................................................................................................... 12

6.

Application Diagram ................................................................................................... 12

6.1. Reference Application Circuit

............................................................................................ 13

7.

Package Marking Information .................................................................................... 14

7.1. Marking Information

......................................................................................................... 14

7.2. SSOP16 IC Drawing

........................................................................................................ 15

8.

POR for DC Fan Application....................................................................................... 16

9.

Programming the DF329 ............................................................................................. 17