cs1500 Cirrus Logic, Inc., cs1500 Datasheet
cs1500
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cs1500 Summary of contents
Page 1
... The digital controller optimizes the system stability and transient performance, simplifies the PFC design, reduces the external component count and BOM costs. The simple design and minimum cost makes CS1500 the ideal choice for PFC up to 300 watts. Pin Assignments L ...
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... Gate Driver Output — The totem pole stage is able to drive the power MOSFET with a peak current of 0.5 A source and 1.0 A sink. The high-level voltage of this pin is clamped avoid excessive gate voltages Supply Voltage — Supply voltage of both the input signal portion of the IC and the gate driver. CS1500 Description ) is rect ) of the link DS849A7 ...
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... OL C =1nF,V = 13V =1nF,V = 13V -200mA,V = 13V Vol 100mA,V = 13V Voh GD DD CS1500 Value Unit -0 -0 -1.0 / +0.5 A 600 mW -40 to +125 ºC -40 to +125 ºC -65 to +150 º – Min Typ ...
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... C 25º C, 115 VAC 25º C, 115 VAC 25º C, 115 VAC 25º C, 115 VAC 25º C, GDRV turns off 25º C, GDRV turns 1 180 360 For other V B Parameter CS1500 Symbol Min Typ Max I - 129 REF V - 360 O(startup ...
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... Figure 3. UVLO Hysteresis vs. Temp DS849A7 CONFIDENTIAL Rising -50 19 18.5 18 17.5 17 100 150 -50 Figure 4. VDD Zener Voltage vs. Temp Startup UVLO 0 50 100 TEMP ( o C) Figure 2. Start-up & UVLO vs. Temp 100 TEMP ( o C) CS1500 150 150 5 ...
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... I = 100 mA source I = 200 mA sink 395 390 385 60 80 100 120 140 -50 ) Temp ( vs. Temp OH OL CS1500 Max Freq Min Freq -40 - 100 TEMP ( o C) OVP Normal 0 50 100 Temperature (°C) Figure 8. OVP vs. Temp 120 140 150 DS849A7 ...
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... REF ADCs. The digital signal is then processed in a control algorithm which determines the behavior of the CS1500 during start-up, normal operation, and under fault conditions, such as brownout, overvoltage, overcurrent, overpower, and over-temperature conditions. • DCM with Variable On-Time, Variable Switching Fre- ...
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... One key feature of the CS1500 is its operating frequency profile. Figure 10 illustrates how the frequency varies over half cycle of the line voltage in steady-state operation. When power is first applied to the CS1500, it first examines the line voltage and adapts its operating frequency to the exposed line voltage as shown in Figure 11. The operating frequency is varied in about a 2-to-1 ratio from the peak to the trough ...
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... A current proportional to the AC input voltage is supplied to the IC on pin IAC and is used by the PFC control algorithm. Resistor R current and is calculated as follows link For optimal performance, resistor R than 1% tolerance resistor. Resistors can be separated in two CS1500 (shown as R2a & R2b in Figure 21) sets the FB V – V link dd ...
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... V) set by the IC within half of a line cycle higher than the threshold. It then decreases the voltage with a slew rate trough (8 ms). The CS1500 initiates a timer when the measured voltage falls below the lower brownout threshold. The IC asserts the brownout protection and stops ...
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... Standby (STBY) Function The standby (STBY) pin provides a means by which an external signal can cause the CS1500 to enter into a non- operating, low-power state. The STBY input is intended to be driven by an open-collector/open-drain device. Internal to the pin, there is a pull-up resistor connected to the VDD pin as ...
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... L B R1a IAC FB VDD 7 VDD STBY 5 GND GD CS1500 Figure 21. CS1500 Basic Application Circuit 90 VAC 265 VAC Maximum power dissipation in each sense resistor is 400 V calculated as follows (the equation ignores the voltage drop 90 W across R , respectively: FB [Eq. R2a R2b 8 ...
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... avg V link 90 --------- - avg 400 I = 0.225A D avg PFC Output Capacitor P O -------------------------------------------------------------------------------------- - = line min link link rip is the minimum line frequency the design is required is the output voltage from the PFC, V link 90 ------------------------------------------------ - 400 10 CS1500 [Eq.14] [Eq.15] [Eq.16] [Eq.17] , link(rip) u100 F use 13 ...
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... V link min of 300 V, the equation While in overvoltage protection mode, gate drive output is disabled. GD output is re-enabled when V nominal value. Overvoltage Protection link V V 1.05 = ovp link V = 400 1.05 ovp V = 420V ovp link CS1500 exceeds 105% [Eq.19] falls below its DS849A7 ...
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... A, 600 V 360 500 V PFC Controller CS1500 Description SFR25 axial film res - 0.4W-1% SFR25 axial film res - 0.4W-1% SFR25 axial film res - 0.4W-1% SFR25 axial film res - 0.4W-1% SFR25 axial film res - 0.4W-1% ECQ2W474KH 50V Ceramic cap - X7R LLS2W101MELA GBU4J-BP 1N4005 STTH1R06 Premier Magnetics STP12NM50FP CS1500 15 ...
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... PERFORMANCE PLOTS 100 100 Vin = 115 CONFIDENTIAL Vin=230V Vin=115V Load (%) Figure 22. Efficiency vs. Load, Typical Vin = 230 Load (% ) Figure 23. Distortion vs. Load, Typical 100 110 100 CS1500 DS849A7 ...
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... DS849A7 CONFIDENTIAL Vin = 115 Vin = 230 Load (% ) Figure 24. Power Factor vs. Load, Typical CS1500 100 17 ...
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... Figure 25. Load Transient — 20% to 80% ( 240 mA), 0.8 A/ sec Slew, 90 VAC Figure 26. Load Transient — 20% to 80% ( 240 mA), 0.8 A/ sec Slew, 260 VAC 18 CONFIDENTIAL CS1500 DS849A7 ...
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... Figure 28. Overload — 240 mA to 500 mA, 265 VAC DS849A7 CONFIDENTIAL Figure 27. Overload — 240 mA to 500 mA, 90 VAC CS1500 19 ...
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... The PFC boost inductor The nominal output power from the CS1500 PFC circuit The maximum value of the output power from the CS1500 PFC circuit. o(max) R The sense resistor used to measure current into the IAC pin The sense resistor used to measure current into the FB pin. ...
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... JEDEC # MS-012 Temperature Range -40 °C to +125 °C Peak Reflow Temp MSL Rating 260 °C CS1500 L MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.33 0.51 0.19 0.25 4.80 5.00 3.80 4.00 1.02 1.52 5.80 6.20 0.40 1.27 0° 8° Package Description ...
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... Modified defini- tion table. Modified data sheet format. Updated to correspond to C1 silicon. Updated performance data. Updated with additional test bench data for EP level. Updated zener voltage, OPP threshold, brownout protection/recovery. Updated Fig.1 with new data. CS1500 DS849A7 ...