Cirrus-logic CS1601H Manual do Utilizador descarregar pdf (Página 1)

Cirrus Logic, Inc.

http://www.cirrus.com

CS1601

CS1601H

Digital PFC Controller for Electronic Ballasts

Features

 Low PFC System Cost

 Best-in-class THD

 Digital EMI Noise Shaping Reduces Conducted EMI

 Adaptive Switching Frequency Control Minimizes Boost

Inductor Size

 High Efficiency Due to Zero-current Switching

 Integrated Feedback Compensation Simplifies System

Design

 Comprehensive Safety Features

• Undervoltage Lockout (UVLO)

• Output Overvoltage Protection

• Cycle-by-cycle Current Limiting

• Input Voltage Brownout Protection

• Open/Short Loop Protection for IAC & IFB Pins

• Thermal Shutdown

 Pin Placement Similar to Traditional Boundary Mode (CRM)

Controllers

Applications

 LED Power Supply/Driver

 Fluorescent Ballasts

 HID Ballasts

Overview

The CS1601 and CS1601H are digital power factor correction

(PFC) controllers designed to deliver the lowest PFC system

cost in electronic ballast applications. The controller operates

in a variable frequency discontinuous conduction mode (VF-

DCM) with zero-current switching optimized to deliver best-in-

class THD and minimize the size and cost of magnetic

components. The CS1601 operates at switching frequencies of

up to 70kHz, and the CS1601H operates at frequencies of up

to 100kHz.

The VF-DCM control algorithm varies both duty cycle and

frequency. This spreads the EMI frequency spectrum, thus

reducing conducted EMI filtering requirements. In addition, the

maximum switching frequency is reached at the peak of the AC

input, which allows the use of a smaller, more cost-effective

boost inductor.

The feedback loop is closed through an integrated

compensation network within the controller, eliminating the

need for additional external components. Protection features

such as overvoltage, overcurrent, open and short-circuit

protection, overtemperature, and brownout protect the system

during abnormal transient conditions.

Ordering Information

See page 16.

R2 R3

C1 C2

Regulated

DC Output

Mains

BR 1

BR1

BR 1

BR1

CS1601

CS1601H

GDZCD

IFB

GND

CSIAC

VDD

STBY

rect

link

FEB’12

DS931F3

1 2 3 4 5 6 ... 15 16

Resumo do Conteúdo

Página 1 - Overview

Página 2 - 1. INTRODUCTION

CS160110 DS931F35.2 Startup vs. Normal Operation ModeThe CS1601 has two discrete operation modes: startup andnormal. Startup mode will be activated wh

Página 3 - 2. PIN DESCRIPTION

CS1601DS931F3 115.5 PFC Output CapacitorThe value of the PFC output capacitor needs to be selectedbased upon voltage ripple and hold-up requirements.

Página 4 - 4 DS931F3

CS160112 DS931F3table below depicts approximate values for R3 and R4 for arange of boost-to-auxiliary inductor turns ratio, N.Table 1. Aux Inductor Tu

Página 5 - DS931F3 5

CS1601DS931F3 135.11 Overpower ProtectionThe CS1601 incorporates an internal overpower protection(OPP) algorithm that provides protection from overlo

Página 6 - 3.2 Absolute Maximum Ratings

CS160114 DS931F35.15 Summary of EquationsEq. # Equation Variables/Recommended Values1Output Power (page 10)PoRated output power of the system. Effici

Página 7 - DS931F3 7

CS1601DS931F3 156. PACKAGE DRAWINGMILLIMETERS INCHESDimension MIN NOM MAX MIN NOM MAXA - - - - 1.75 - - - - 0.069A1 0.10 - - 0.25 0.004 - - 0.010b 0.3

Página 8 - 8 DS931F3

CS160116 DS931F37. ORDERING INFORMATION8. ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION9. REVISION HISTORYPart # Temperature Range Package

Página 9 - 5. GENERAL DESCRIPTION

CS16012 DS931F31. INTRODUCTION Figure 1. CS1601 Block DiagramThe CS1601 digital power factor correction (PFC) control IC isdesigned to deliver the lo

Página 10 - 5.3 Burst Mode

CS1601DS931F3 32. PIN DESCRIPTIONCSPFC Current SenseIFBLink Voltage SenseZCD PFC Zero-current DetectGNDGroundGD P FC Ga te D riv erVDD IC S upply Vol

Página 11 - 5.7 Valley Switching

CS16014 DS931F33. CHARACTERISTICS AND SPECIFICATIONS3.1 Electrical CharacteristicsTypical characteristics conditions: TA=25°C, VDD= 13V, GND = 0VAll v

Página 12 - 5.10 Overcurrent Protection

CS1601DS931F3 5Notes: 1. External circuitry should be designed to ensure the ZCD sink current pulled from the internal clamp diode when it is forward

Página 13 - 5.14 Standby (STBY) Function

CS16016 DS931F33.2 Absolute Maximum RatingsCharacteristics conditions:All voltages are measured with respect to GND.Notes: 5. Long-term operation at t

Página 14 - 5.15 Summary of Equations

CS1601DS931F3 74. TYPICAL ELECTRICAL PERFORMANCE -3.0%-2.5%-2.0%-1.5%-1.0%-0.5%0.0%0.5%-50 0 50 100 150IrefDriftTemperature (oC)Figure 3. Supply Curr

Página 15 - 6. PACKAGE DRAWING

CS16018 DS931F3 02468101214-60 -40 -20 0 40 100 120 140 Gate Resistor (ROH, ROL) Temp (oC)Zout (Ohm)SourceSinkVDD = 13 VIsource = 100 mAIsink = 200 mA

Página 16 - 9. REVISION HISTORY

CS1601DS931F3 95. GENERAL DESCRIPTIONThe CS1601 offers numerous features, options, andfunctional capabilities to the electronic product lightingdesign

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Cirrus-logic CS1601H Manual do Utilizador Página 1

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Cirrus-logic CS1601H Manual do Utilizador Página 1

Consulte online ou descarregue Manual do Utilizador para Hardware Cirrus-logic CS1601H. Cirrus Logic CS1601H User Manual Manual do Utilizador

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