FAN7530M

FAN7530M Datasheet


FAN7530 Critical Conduction Mode PFC Controller

Part Datasheet
FAN7530M FAN7530M FAN7530M (pdf)
Related Parts Information
FAN7530N FAN7530N FAN7530N
FAN7530MX FAN7530MX FAN7530MX
PDF Datasheet Preview
FAN7530 Critical Conduction Mode PFC Controller

FAN7530 Critical Conduction Mode PFC Controller

April 2007
- Low Total Harmonic Distortion THD - Precise Adjustable Output Over-Voltage Protection - Open-Feedback Protection and Disable Function - Zero Current Detector - 150µs Internal Start-up Timer - MOSFET Over-Current Protection - Under-Voltage Lockout with 3.5V Hysteresis - Low Start-up 40µA and Operating Current 1.5mA - Totem Pole Output with High State Clamp - +500/-800mA Peak Gate Drive Current - 8-pin DIP or 8-pin SOP
- Adapter - Ballast - LCD TV, CRT TV - SMPS

Related Application Notes
- AN-6027 - Design of Power Factor Correction Circuit Using FAN7530

The FAN7530 is an active power factor correction PFC controller for the boost PFC applications that operates in critical conduction mode CRM . It uses the voltage mode PWM that compares an internal ramp signal with the error amplifier output to generate MOSFET turn-off signal. Because the voltage mode CRM PFC controller does not need the rectified AC line voltage information, it can save the power loss of the input voltage sensing network necessary for the current mode CRM PFC controller.

FAN7530 provides many protection functions such as over voltage protection, open-feedback protection, overcurrent protection, and under-voltage lockout protection. The FAN7530 can be disabled if the INV pin voltage is lower than 0.45V and the operating current decreases to 65µA. Using a new variable on-time control method, THD is lower than the conventional CRM boost PFC ICs.
Ordering Information

Part Number FAN7530N FAN7530M FAN7530MX

Operating Temp. Range
-40°C to +125°C -40°C to +125°C -40°C to +125°C

Pb-Free Yes

Package 8-DIP 8-SOP 8-SOP

Packing Method Rail

Tape & Reel

Marking Code

FAN7530

FAN7530 Critical Conduction Mode PFC Controller

Typical Application Diagrams

VAUX

NAUX

RZCD I2 R2 ZCD

FAN7530

CS I1 COMP

Figure Typical Boost PFC Application

Internal Block Diagram

VCC 8

UVLO
12V 8.5V Disable

ZCD 5 6.7V 1.4V 1.5V

Zero Current Detector
2.5V Ref

Vref1

Internal Bias
150ms Timer

Drive Output
7 OUT

OVP 2.675V 2.5V

CS 4 MOT 2
40k 8pF
0.8V

Current Protection Comparator

Ramp Signal

Saw Tooth Generator
1V Offset

Disable
0.45V 0.35V

Error
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Datasheet ID: FAN7530M 513980