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参数资料
| 型号： | IR21593STRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 14/26页 |
| 文件大小： | 0K |
| 描述： | IC BALLAST CTLR DIMMING 16-SOIC |
| 标准包装： | 2,500 |
| 类型： | 镇流器控制器 |
| 频率： | 30 ~ 230 kHz |
| 电流 - 电源： | 10mA |
| 电源电压： | 12.5 V ~ 15.6 V |
| 工作温度： | -40°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) |
IR21592/IR21593 (S) &(PbF)
Functional Description
PH/IGN
400
Phase Control
To understand phase control, a simplified model
20
10
10%
50%
350
300
250
for the ballast output stage is used (Figure 1). The
lamp and filaments are replaced with resistors,
0
100%
200
150
with the lamp inserted between the filament
resistors (R1, R2, R3 and R4).
-10
-20
50%
10%
PH/IGN
100
50
0
100%
-50
R1
R2
-30
-100
L
5
10
15
20
25 30
Frequency [kHz]
35
40
45
50
Vin
Rlamp
C
Figure 2, Typical output stage transfer function for
different lamp power levels.
R3
R4
In the time domain (Figure 3), the input current is
Figure 1, Dimming ballast output stage.
During preheat and ignition (Figure 2), the circuit
is a high-Q series LC with a strong input current to
input voltage phase inversion from +90 to -90
degrees at the resonance frequency. For operating
shifted -90 degrees from the input half-bridge
voltage during preheat and ignition, and
somewhere between 0 and -90 degrees after
ignition during running. Zero phase-shift
corresponds to maximum power.
frequencies slightly above resonance and higher,
the phase is fixed at -90 degrees for the duration
of preheat and ignition. During dimming, the circuit
is an L in series with a parallel R and C, with a
weak phase inversion at high lamp power and a
strong phase inversion at low lamp power.
0
V in
I in run
I in ph/ign
t
n run
n ph/ign
Figure 3, Typical ballast output stage waveforms.
When the phase is calculated and plotted versus
lamp power (Figure 4), the result is a linear dimming
curve, even down to ultra-low light levels where
the resistance of the lamp can change by orders
of magnitude.
14
www.irf.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR2159S | 制造商:IRF 制造商全称:International Rectifier 功能描述:DIMMING BALLAST CONTROL IC |
| IR2159STR | 功能描述:IC BALLAST CONTROL DIM 16-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 照明，镇流器控制器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:2,500 系列:- 类型:CCFL 控制器 频率:40 ~ 80 kHz 电流 - 电源:5mA 电流 - 输出:- 电源电压:4.5 V ~ 5.5 V 工作温度:-40°C ~ 85°C 封装/外壳:16-SOIC（0.154"，3.90mm 宽） 供应商设备封装:16-SOIC 包装:带卷 (TR) 其它名称:90-3991V+V01 |
| IR2161 | 制造商:International Rectifier 功能描述: |
| IR2161PBF | 功能描述:功率驱动器IC Halogen Cnvrtr 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 |
| IR2161S | 制造商:International Rectifier 功能描述: |
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