- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377498 > IR21593S (International Rectifier) DIMMING BALLAST CONTROL IC PDF資料下載
參數(shù)資料
| 型號(hào)： | IR21593S |
| 廠商： | International Rectifier |
| 英文描述： | DIMMING BALLAST CONTROL IC |
| 中文描述： | 調(diào)光鎮(zhèn)流器控制IC |
| 文件頁(yè)數(shù)： | 14/25頁(yè) |
| 文件大小： | 259K |
| 代理商： | IR21593S |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)當(dāng)前第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)
IR21592/IR21593
(S)
14
www.irf.com
Functional Description
Phase Control
To understand phase control, a simplified model
for the ballast output stage is used (Figure 1). The
lamp and filaments are replaced with resistors,
with the lamp inserted between the filament
resistors (R1, R2, R3 and R4).
L
C
Rlamp
Vin
R1
R2
R3
R4
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
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.
-30
-20
-10
0
10
20
5
10
15
20
25
30
35
40
45
50
Frequency [kHz]
M
-100
-50
0
50
100
150
200
250
300
350
400
P
10%
50%
100%
100%
50%
10%
PH/IGN
PH/IGN
Figure 2, Typical output stage transfer function for
different lamp power levels.
In the time domain (Figure 3), the input current is
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.
n
run
n
ph/ign
V
in
I
in
t
ph/ign
0
I
inrun
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.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IR21592 | DIMMING BALLAST CONTROL IC |
| IR21592S | DIMMING BALLAST CONTROL IC |
| IR2166 | RES 560 OHM 1/10W 5% SM |
| IR2166PBF | PFC & BALLAST CONTROL IC |
| IR2166S | PFC & BALLAST CONTROL IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IR21593SPBF | 功能描述:功率驅(qū)動(dòng)器IC DIMMING BALLAST CTRL 600V 0.5 to 5V DC RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| IR21593STRPBF | 功能描述:LED顯示驅(qū)動(dòng)器 Dim Ballast Cntrl 1.8us Deadtime RoHS:否 制造商:Micrel 數(shù)位數(shù)量:5 片段數(shù)量: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PLCC-44 工作電源電壓:4.75 V to 11 V 最大電源電流:10 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Tube |
| IR2159S | 制造商:IRF 制造商全稱:International Rectifier 功能描述:DIMMING BALLAST CONTROL IC |
| IR2159STR | 功能描述:IC BALLAST CONTROL DIM 16-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 照明，鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 類型:CCFL 控制器 頻率:40 ~ 80 kHz 電流 - 電源:5mA 電流 - 輸出:- 電源電壓:4.5 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01 |
| IR2161 | 制造商:International Rectifier 功能描述: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。