Functional Description
Overview
3
Functional Description
3.1
Overview
The 88EM8010/88EM8011 is a high performance, low-cost with minimum component count Power
Factor Correction (PFC) Controller. The device is used for Universal PFC front-end boost converters
in systems or standalone products. The high performance of 88EM8010/88EM8011 is accompanied
with its small system size and simplicity of application. Figure 3 shows the top level block diagram.
Figure 3: Top Level Block Diagram
88EM8010/8011
T_over
Vo_over
I_over
Over
Temperature
Clock
Oscillator
Protection
Management
Fault
Current Protection
Driver
Disable
MUX
ISNS
FB
Current
Amplifier
Switcher
&
ADC
SW
Gate
Driver
DSP
Core
State
Machine
Output
Voltage
Level Detect
Vo_over
VIN
Zero Cross
Detect
Current
Protection
Threshold
Selection
Power
Distribution
and
Startup Setting
or
Frequency
Setting
Serial Data
Interface
Bandgaps
PGND SGND
VDD
Copyright © 2009 Marvell
September 30, 2009, 2.00
Doc. No. MV-S104861-01 Rev. –
Page 19
Document Classification: Proprietary
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
