参数资料
型号: CS1601-FSZ
厂商: Cirrus Logic Inc
文件页数: 14/16页
文件大小: 0K
描述: IC PFC CONTROLLER BALLAST 8SOIC
产品变化通告: CS1501, 1601 Datasheet Update Change 11/Jan/2012
设计资源: CS150x/160x PCB Layout Guidelines
Driving Mosfets with CS1501/1601
CS1501/1601 Driving ZCD Pin from Mosfet Drain
特色产品: CS1501/CS1601 Power Factor Correction IC Controllers
标准包装: 100
类型: PFC/镇流器控制器
频率: 70kHz
电流 - 电源: 1.5mA
电流 - 输出: 1A
电源电压: 7.9 V ~ 17 V
工作温度: -40°C ~ 125°C
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 散装
其它名称: 598-1915
CS1601
5.15
Summary of Equations
Eq. #
Equation
Output Power ( page 10 )
Variables/Recommended Values
2 V link – ? V in ? min ? ? 2 ?
2 ? f max ? L B ? V link
1
P o = ? ? ? ? ? V in ? min ? ? ? ---------------------------------------------------------
Output Power with recommended values ( page 10 )
P o
?
Rated output power of the system.
Efficiency of the boost converter (estimated as
100% by the PFC algorithm).
P o = ? ? ? ? ? 90Vrms ? ? -------------------------------------------------------------
2
2 400V – ? 90Vrms ? 2 ?
2 ? 70kHz ? L B ? 400 V
V in(min) Minimum RMS line voltage is 90Vrms,
measured after the rectifier and EMI filter.
Boost Inductor ( page 10 )
V link
Nominal PFC output voltage must be 400V.
L B = ? ? ? ? ? 90Vrms ? ? -------------------------------------------------------------
R IFB = ----------------------------- = -------------------------------
3
4
5
6
2 400V – ? 90Vrms ? 2 ?
2 ? 70kHz ? P o ? 400 V
Output IFB Sense Resistor ( page 11 )
V link – V DD 400V – V DD
I ref 129 ? A
Input IAC Sense Resistor ( page 11 )
R IAC = R IFB
Auxiliary Winding Cut-off Frequency ( page 12 )
f c = 1 ? ? 2 ? ? R3 ?? R4 ? C p ?
f max
L B
?
R IAC
R IFB
I ref
Maximum switching frequency is 70kHz.
Boost inductor specified by rated power
requirement.
Margin factor to guarantee rated output power
(P o ) against boost inductor tolerances.
Value of the IAC pin sense resistor(s).
Value of the IFB pin sense resistor(s).
Value of the fixed, internal reference current.
Maximum Response Time for Brownout : ( page 12 )
T Brownout = 8 ms + ------------ ? 128 V – V BP ? th ? ? + 56 ms
7
8
8 ms
5V
Overvoltage Protection ( page 12 )
V OVP = R IFB ? I OVP + V DD
f c
C p
V BP(th)
The cut-off frequency, f c , needs to be 10x the
ringing frequency or f c = 10MHz.
Capacitance at the ZCD pin. C p <10pF.
Brownout threshold voltage. V BP(th) = 94.8V.
4 ? P O
? ? V in ? min ? ? 2
9
Boost Inductor Peak Current
I LB ? pk ? = --------------------------------------------
Boost Inductor RMS Current
C out Value of the output capacitor in mF.
f line(min) Minimum line frequency.
I LB ? rms ? = ------------------------------
? V link ? rip ? = ------------------------------------------------------------------------
14
10
11
P O
V in ? min ? ? ?
V link Voltage Ripple
P O
2 ? ? f line ? min ? ? V link ? C out
V DD
V OVP
I OVP
IC Supply Voltage.
OVP threshold.
Current into the IFB pin.
DS931F3
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