88EM8011 Datasheet, PDF (1/2 Pages) –

Marvell 88EM8011
Digital Power Factor Correction Controller
Smart Green Technology
PRODUCT OVERVIEW
The Marvell^® 88EM8011 is a high-performance, low-cost, minimum component count power factor correction (PFC) controller.
The device is used for universal PFC front-end boost conversion in systems or in standalone products that have power ranges
between 10W and 300W.
The 88EM8011 includes Marvell’s patented mixed mode control (MMC) that ensures the lowest total harmonic distortion
(THD) in the industry. The average current control mode (CCM) is also available as an option. The device has multiple
switching frequency options and its soft start is programmable for a variety of applications. The powerful adaptive driver
self-adjusting feature allows for flexible application in a wide range of MOSFET sizes, while reducing the electromagnetic
interference (EMI).
Through Marvell’s innovative digital signal processing (DSP) solution, the 88EM8011 controller improves the steady state
and transient performance. The combination of the MMC built on top of the DSP solution elevates industry standards for
PFC controllers.
The proprietary adaptive over-current protection ability ensures constant power constraint. The safety provisions include
open loop and a high voltage protection protocol.
The 8-pin SOIC and DIP packages facilitate the application design process by minimizing the requirements for external
components as well as for board space. This guarantees simple system design at a minimum cost making the 88EM8011
the best choice for any PFC application.
BLOCK DIAGRAM
Fuse
EMI Filter
Rin1
Rin2
Rin3
0.047 µF
Rin4
Vin
VDC
L
D
88EM8011
1 PGND SW 8
2 SGND VDD 7
3 Isns SDI/FSET 6
4 Vin
FB/En 5
Mosfet
VDD
RFset
Ro1
Ro2
Co
Ro3
Ro4
R_sns
GND
Fig 1. 88EM8011 Block Diagram