FL6961MY Fairchild Semiconductor, FL6961MY Datasheet

Power Factor Correction ICs Boundary Mode PFC Controller

FL6961MY

Manufacturer Part Number
FL6961MY
Description
Power Factor Correction ICs Boundary Mode PFC Controller
Manufacturer
Fairchild Semiconductor
Datasheet

Specifications of FL6961MY

Switching Frequency
60 KHz
Maximum Power Dissipation
400 mW
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Package / Case
SOP-8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
© 2010 Fairchild Semiconductor Corporation
FL6961 • Rev. 1.0.1
FL6961
Single-Stage Flyback and Boundary Mode PFC
Controller for Lighting
Features
Applications
Ordering Information
Part Number
FL6961MY
Boundary Mode PFC Controller
Low Input Current THD
Controlled On-Time PWM
Zero-Current Detection
Cycle-by-Cycle Current Limiting
Leading-Edge Blanking instead of RC Filtering
Low Startup Current: 10µA Typical
Low Operating Current: 4.5mA Typical
Feedback Open-Loop Protection
Programmable Maximum On-Time (MOT)
Output Over-Voltage Clamping Protection
Clamped Gate Output Voltage 16.5V
General LED Lighting
Industrial, Commercial and Residential Fixtures
Outdoor Lighting : Street, Roadway, Parking,
Construction and Ornamental LED Lighting
Fixtures
Operating Temperature
-40°C to +125°C
Range
8-Pin, Small Outline Package (SOP)
Description
The FL6961 is general lighting power controller for low
to high power lumens applications requiring power
factor correction. It is designed for flyback, or boost
converter operating in boundary-mode. The FL6961
provides a controlled on-time to regulate the output DC
voltage and achieve natural power factor correction.
The maximum on-time of the external switch is
programmable to ensure safe operation during AC
brownouts. An innovative multi-vector error amplifier is
built in to provide rapid transient response and precise
output voltage clamping. A built-in circuit disables the
controller if the output feedback loop is opened. The
startup current is lower than 20µA and the operating
current has been reduced to under 6mA. The supply
voltage can be up to 25V, maximizing application
flexibility.
Package
Packing Method
November 2010
Tape & Reel
www.fairchildsemi.com

Related parts for FL6961MY

FL6961MY Summary of contents

Page 1

... Construction and Ornamental LED Lighting Fixtures Ordering Information Operating Temperature Part Number Range FL6961MY -40°C to +125°C © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 Description The FL6961 is general lighting power controller for low to high power lumens applications requiring power factor correction ...

Page 2

... Figure 2. Block Diagram 2.65V 2.3V 1 INV 2.5V VOLTAGE REGULATOR UVLO V = 12V CC_ON V = 9.5V CC_OFF GND 6 © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0 VCC INV 7 GATE COMP GND MOT ZCD Typical Application Circuit for Step-up Converter Typical Application Circuit for Single Stage PFC Converter ...

Page 3

... Driver Output. Totem-pole driver output to drive the external power MOSFET. The clamped gate 7 GATE output voltage is 16.5V Power Supply. Driver and control circuit supply voltage. CC © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 F- Fairchild Logo Z- Plant Code X- Year Code Y- Week Code TT: Die Run Code T: Package Type (M=SOP) ...

Page 4

... The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not recommend exceeding them or designing to Absolute Maximum Ratings. Symbol T Operating Ambient Temperature A © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 Parameter Parameter 4 Min. Max. ...

Page 5

... Output Voltage Maximum (Clamp) Z OUT V Output Voltage Low OL V Output Voltage High OH t Rising Time R t Falling Time F © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 =-40°C to 125°C. Current is defined as positive into the device and J Conditions V =V – 0.16V CC CC-ON V =12V, V =0V ...

Page 6

... Disable Function Debounce Time ZCD-DIS Maximum On Time Section V Maximum On Time Voltage MOT Maximum On Time Programming t ON-MAX (Resistor Based) © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 =-40°C to 125°C. Current is defined as positive into the device and negative J Conditions V Increasing ZCD V Decreasing ...

Page 7

... Temperature (℃) Figure 8. t ON-MAX 10.5 10.1 9.7 9.3 8.9 8.5 -40 -25 - Temperature (℃) Figure 10. V th-OFF © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 3.0 2.4 1.8 1.2 0.6 0 110 125 -40 -25 -10 vs 14.0 13.4 12.8 12.2 11.6 11 ...

Page 8

... Temperature (℃) Figure 12. V MOT 0.87 0.85 0.83 0.81 0.79 0.77 -40 -25 - Temperature (℃) Figure 14 © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 (Continued) 18.0 17.4 16.8 16.2 15.6 15 110 125 vs 110 125 vs -40 -25 -10 5 ...

Page 9

... A high voltage in CS pin terminates a switching cycle immediately and cycle-by-cycle current limit is achieved. The designed threshold of the protection point is 0.82V. © 2010 Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 Leading-Edge Blanking (LEB) A turn-on spike on CS pin appears when the power MOSFET is switched on ...

Page 10

... Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’ ...

Page 11

... Fairchild Semiconductor Corporation FL6961 • Rev. 1.0.1 11 www.fairchildsemi.com ...

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