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参数资料
| 型号： | IRS2166DSTRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 14/18页 |
| 文件大小： | 0K |
| 描述： | IC CTRL PFC/BALLAST 16-SOIC |
| 标准包装： | 2,500 |
| 类型： | PFC/镇流器控制器 |
| 频率： | 40 ~ 46 kHz |
| 电流 - 电源： | 20mA |
| 电流 - 输出： | 260mA |
| 电源电压： | 12.5 V ~ 15.6 V |
| 工作温度： | -25°C ~ 125°C |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC N |
| 包装： | 带卷 (TR) |
| 配用： | IRPLLNR7-ND - KIT UNIV ELEC BALLAST FLUOR LAMP |
IRS2166D(S)PbF
Rect (+)
LPFC
DPFC
DC Bus
For these reasons, the ballast designer should perform
MPFC
CBUS
RD
DOC
VBUS
CPH
RT
RPH
CT
1
2
3
4
16
15
14
13
HO
VS
VB
VCC
COM
these mains interrupt and ignition tests carefully to
determine the correct current-sensing resistor value and
determine the robustness of their final design.
Ballast Design Equations
47
1N4148
COMP
5
7 6
12
11
LO
Note: The results from the following design equations can
differ slightly from experimental measurements due to IC
RS
1
ZX
PFC
7
8
10
9
CS
SD/ EOL
tolerances, component tolerances, and oscillator over-
and under-shoot due to internal comparator response
time.
Rect (-)
Fig. 14: External over-current protection circuit
Should high currents occur, the voltage across the current-
sensing resistor will exceed 4.3V over-voltage protection
threshold at the VBUS pin and the PFC MOSFET will turn off
safely limiting the current. The watch-dog timer will then restart
Step 1: Program Deadtime
The deadtime between the gate driver outputs HO and
LO is programmed with timing capacitor C T and an
internal deadtime resistor R DT . The deadtime is the
discharge time of capacitor C T from 3/5 V CC to 1/3 V CC
and is given as:
the PFC as normal (Fig. 15). The current sensing resistor
value should be selected such that the over-current protection
t DT = C T ? 1475
[s]
(1)
does not false trip during normal operation over the entire line
voltage and load range. A current-sensing resistor value of 1.0
ohm, for example, will set the over-current threshold to about 5
A peak.
or
C T =
t DT
1475
[F]
(2)
Step 2: Program Run Frequency
The final run frequency is programmed with timing
resistor R T and timing capacitor C T . The charge time of
capacitor C T from 1/3 V CC to 3/5 V CC determines the on-
time of HO and LO gate driver outputs. The run frequency
is therefore given as:
f RUN =
1
2 ? C T ( 0 . 51 ? R T + 1475 )
[Hz]
(3)
or
Fig. 15: PFC inductor current limited using over-current
protection circuit (upper trace: DC Bus, 100V/div; middle trace:
R T =
1
1 . 02 ? C T ? f RUN
? 2892
[ ? ]
(4)
AC line input voltage, 100V/div; lower trace: PFC inductor
current 1A/div).
Step 3: Program Preheat Frequency
The effect that these line and load conditions have on the
performance of the ballast depends on the saturation level of
the PFC inductor, the selection of the PFC MOSFET, the DC
bus capacitor value, the maximum on-time limit set by the
DZCOMP, and, how fast VCC decreases below UVLO-.
www.irf.com
The preheat frequency is programmed with timing
resistors R T and R PH , and timing capacitor C T . The timing
resistors are connected in parallel internally for the
duration of the preheat time. The preheat frequency is
therefore given as:
Page 14
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IRS21681DSPBF | 制造商:International Rectifier 功能描述:ADVANCED PFC AND BALLAST CONTROL IC - Rail/Tube 制造商:International Rectifier 功能描述:IC LIGHT BALLAST CONTROL |
| IRS21681DSTRPBF | 功能描述:开关变换器、稳压器与控制器 Advanced PFC & Ballast Cntrl IC RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| IRS2168DPBF | 功能描述:功率驱动器IC Advanced PFC & Ballast Cntrl IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| IRS2168DSPBF | 功能描述:功率驱动器IC ADVANCED PFC BALLAST CTRL IC RoHS:否 制造商:Micrel 产品:MOSFET Gate Drivers 类型:Low Cost High or Low Side MOSFET Driver 上升时间: 下降时间: 电源电压-最大:30 V 电源电压-最小:2.75 V 电源电流: 最大功率耗散: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
| IRS2168DSPBF | 制造商:International Rectifier 功能描述:MOSFET Driver IC |
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