IC PFC CONTROLLER DCM 8SOIC

CS1600-FSZ

Manufacturer Part NumberCS1600-FSZ
DescriptionIC PFC CONTROLLER DCM 8SOIC
ManufacturerCirrus Logic Inc
SeriesEXL Core™
CS1600-FSZ datasheets
 

Specifications of CS1600-FSZ

Package / Case8-SOIC (3.9mm Width)ModeDiscontinuous Conduction (DCM)
Frequency - Switching66kHzCurrent - Startup68µA
Voltage - Supply7.9 V ~ 17 VOperating Temperature-40°C ~ 125°C
Mounting TypeSurface MountMaximum Power Dissipation600 mW
Maximum Operating Temperature+ 125 CMounting StyleSMD/SMT
Minimum Operating Temperature- 40 CLead Free Status / RoHS StatusLead free / RoHS Compliant
Other names598-1801  
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Low-cost PFC Controller for Electronic Ballasts
Features
& Description
Lowest PFC System Cost for Electronic Ballasts
Variable Frequency Discontinuous Conduction Mode
Improved Efficiency Due to Variable Switching Frequency
EMI Signature Reduction from Digital Noise Shaping
Integrated Feedback Compensation
Overvoltage Protection with Hysteresis
Overpower Protection with Shutdown
UVLO with Wide Hysteresis
Thermal Shutdown with Hysteresis
BR1
BR1
AC
C1
Mains
BR 1
BR 1
Cirrus Logic, Inc.
http://www.cirrus.com
Description
CS1600 is a high-performance Variable Frequency Discontinu-
ous Conduction Mode (VF - DCM), active Power Factor
Correction (PFC) controller, optimized to deliver the lowest PFC
system cost for electronic ballast applications.
A variable ON time / variable frequency algorithm is used to
achieve near unity power factor. This algorithm spreads the EMI
frequency spectrum, which reduces the conducted EMI filtering
requirements. The feedback loop is closed through an integrated
compensation network within the IC, eliminating the need for
additional external components. Protection features such as
overvoltage, overcurrent, overpower, open- and short-circuit pro-
tection, overtemperature, and brownout help protect the device
during abnormal transient conditions.
Ordering Information
See
page 13.
L
B
V
DD
R3
R1
C2
R4
R2
7
4
VDD
IFB
3
CS1600
IAC
GND
5
Copyright  Cirrus Logic, Inc. 2010
(All Rights Reserved)
CS1600
D1
C3
Regulated
R5
Q1
6
DC Output
GD
NOV ‘10
DS904F1

CS1600-FSZ Summary of contents

  • Page 1

    ... Cirrus Logic, Inc. http://www.cirrus.com Description CS1600 is a high-performance Variable Frequency Discontinu- ous Conduction Mode (VF - DCM), active Power Factor Correction (PFC) controller, optimized to deliver the lowest PFC system cost for electronic ballast applications. A variable ON time / variable frequency algorithm is used to achieve near unity power factor. This algorithm spreads the EMI frequency spectrum, which reduces the conducted EMI filtering requirements ...

  • Page 2

    ... Regulator POR + - ADC ADC Figure 1. CS1600 Block Diagram system stability and transient response. No external feedback error signal compensation components are required. The CS1600s digital controller algorithm limits the ON time of the Power MOSFET by the following equation rect Where and V on rect sudden line surge or sporadic, high dv/dt line voltages, this equation may not limit the ON time appropriately ...

  • Page 3

    ... IFB GND 8-lead S OIC Figure 2. CS1600 Pin Assignments Table 1. Pin Descriptions NC — No connections Rectifier Voltage Sense — A current proportional to the rectified line voltage (V fed into this pin. The current is measured with an A/D converter. Link Voltage Sense — A current proportional to the output link voltage (V PFC is fed into this pin. The current is measured with an A/D converter. Ground — ...

  • Page 4

    ... -200mA,V = 13V =1nF,V = 13V =1nF,V = 13V -200mA,V = 13V 100mA,V = 13V O(startup) V O(nom OVP(Hy 380 H, 115 W. B 5.2 Start-up vs. Normal Operation Mode CS1600 = GND = Min Typ Max 8.4 8.8 9.3 DD(on) 7.1 7.4 7.9 DD(off) - 1.4 - Hys V 17.0 17.9 18 1.7 1 ...

  • Page 5

    ... Long term operation at the maximum junction temperature will result in reduced product life. Derate internal power dissipation at the rate ºC for variation over temperature. Operation at or beyond these limits may result in permanent damage to the device. Normal operation is not guaranteed at these extremes. DS904F1 Parameter =50° Human Body Model Machine Model Charged Device Model WARNING: CS1600 Value Unit -0 -0 ...

  • Page 6

    ... Falling 0 (V) DD Figure 3. Supply Current vs. Supply Voltage 2 1.5 1 0 TEMP ( o C) Figure 5. UVLO Hysteresis vs. Temp -50 Figure 4. Start-up & UVLO vs. Temp 19 18.5 18 17.5 17 100 150 -50 Figure 6. VDD Zener Voltage vs. Temp CS1600 Startup UVLO 0 50 100 TEMP ( 100 TEMP ( o C) DS904F1 150 150 ...

  • Page 7

    ... ST DD 500 490 Source 480 470 460 450 I = 100 mA source I = 200 mA 440 sink 430 420 - 100 120 140 ) Temp ( vs. Temp OH OL CS1600 Max Freq Min Freq -40 - 100 TEMP ( o C) OVP Normal 0 50 100 Temperature (°C) Figure 10. OVP vs. Temp 120 140 150 7 ...

  • Page 8

    ... One key feature of the CS1600 is its operating frequency profile. Figure 11 illustrates how the frequency varies over half cycle of the line voltage in steady-state operation. When power is first applied to the CS1600, it examines the line voltage and adapts its operating frequency to the line voltage as shown in Figure 11. The operating frequency is varied from the peak to the trough of the AC input. During start-up the control algorithm’ ...

  • Page 9

    ... V 460V V – link dd dd --------------------------- - ----------------------------- - IFB I 129 A fixed V rec IAC CS1600 15k 24k IA C ADC 3 Figure 17. IAC Input Pin Model sets the IAC current and is derived as follows: IAC IAC IFB & R should use 1% IAC IFB , is link current FB current is then [Eq.4] [Eq.5] 9 ...

  • Page 10

    ... Brownout Protection As an added protection to the PFC boost stage, the CS1600 includes a failure mechanism that detects high average currents that occur under abnormal brownout conditions. The brownout protection feature monitors the V suspends the gate-drive switching when a brownout threshold breach is detected. Under normal conditions, the CS1600 will ...

  • Page 11

    ... C line(min) line min out CS1600 Variables/Recommended Values rated output power of the system efficiency of the boost converter (estimated as 100% by the PFC algorithm) minimum RMS line voltage is 108V, measured after the rectifier and EMI filter nominal PFC output voltage must be 460 V ...

  • Page 12

    ... The PFC boost inductor The nominal output power from the CS1600 PFC circuit The maximum value of the output power from the CS1600 PFC circuit. o(max) R The sense resistor used to measure current into the IAC pin. IAC R The sense resistor used to measure current into the IFB pin. ...

  • Page 13

    ... SOIC (150 MIL BODY) PACKAGE DRAWING 1 b SEATING PLANE e DIM Part # CS1600-FSZ 10.ENVIRONMENTAL, MANUFACTURING, & HANDLING INFORMATION Model Number CS1600-FSZ a. MSL (Moisture Sensitivity Level) as specified by IPC/JEDEC J-STD-020. b. Stored at 30 °C, 60% relative humidity. DS904F1 INCHES MIN MAX 0.053 0.069 0.004 0.010 0.013 0.020 0.007 ...

  • Page 14

    ... Cirrus Logic, Cirrus, the Cirrus Logic logo designs, EXL CORE, and the EXL CORE logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. 14 Changes Replaced typical connection, pinout, and block diagram. Revised Brownout section. Finalized data sheet for QPL 1. CS1600 DS904F1 ...