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參數(shù)資料
| 型號： | IR2167S |
| 廠商： | International Rectifier |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | PFC Ballast Control. Thermal Overload Protection. Brown Out Protection. Programmable Preheat and Frequency. Programmable Deadtime in a 20 Lead SOIC package |
| 中文描述： | PFC的鎮(zhèn)流器控制。熱過載保護。欠壓保護?？删幊填A熱和頻率?？删幊趟绤^(qū)時間在20引腳SOIC封裝 |
| 文件頁數(shù)： | 16/30頁 |
| 文件大小： | 937K |
| 代理商： | IR2167S |
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IR2167(
S
)
16
www.irf.com
is available over all ballast operating conditions. Bootstrap
diode (DBS) and supply capacitor (CBS) comprise the supply
voltage for the high-side driver circuitry. To guarantee that
the high-side supply is charged up before the first pulse on
HO, the first pulse from the output drivers comes from the
LO pin.
The Preheat mode oscillation frequency of the half-bridge
output is determined by the parallel combination of RPH and
RT with the values of CT, RDT and an internal circuit as
shown in Figure 3. Note that at the onset of Preheat mode
the initial startup frequency is much higher than the preheat
frequency. The half-bridge output frequency then ramps
down from this initial start-up frequency to the Preheat mode
frequency. This is to ensure that the instantaneous voltage
across the lamp during the first few cycles of operation does
not exceed the strike potential of the lamp
Ignition Mode
When
the CPH pin charges up to 4.0V, ignition mode be-
gins. At this time, the output of COMP2 (figure 3) goes low,
2
4.0V
5.1V
3
5
9.5V
3.0uA
4
2.0V
I
RT
6
I
CT
= I
RT
7
4.0V
2.0V
CPH
RPH
RT
RUN
CT
DT
Q
S
R1
R2 Q
QUICK
RESTART
LOGIC
C
RAMP
C
PH
RT
CT
R
RUN
R
PH
R
DT
Fault signal
COMP1
COMP2
M1
M2
Figure 3: Oscillator section block diagram with external component connection
M1 turns off and CRAMP begins to charge. CRAMP deter-
mines the time it takes for the oscillator to ramp down from
the Preheat frequency to the Ignition Mode frequency. Once
the voltage on the RPH lead reaches 2.0V, external resistor
RPH has no effect on the frequency that is now determined
by external components RT, CT and RDT. This is the mini-
mum frequency. By this time, the oscillator will have ramped
down toward the resonance of the load circuit causing the
lamp to ignite.
Run Mode
When the voltage on the CPH pin reaches 5.1V, the IC en-
ters Run mode. At this time, the output of COMP1 (figure 3)
goes high which turns M2 on and pulls the RUN pin to COM.
The frequency is now controlled by external components RT,
RRUN, CT and RDT. In certain cases it is necessary to have
the run frequency higher than the ignition frequency to con-
trol the power used by the load. Figure 4 shows the ballast
control sequence explained in the previous paragraphs
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IR2167SPBF | 功能描述:IC CTLR BALLAST PFC 20-SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 照明，鎮(zhèn)流器控制器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝: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） 供應商設備封裝:16-SOIC 包裝:帶卷 (TR) 其它名稱:90-3991V+V01 |
| IR2167STRPBF | 功能描述:功率因數(shù)校正 IC PFC Ballast Control, Thermal Overload Protection, RoHS:否 制造商:Fairchild Semiconductor 開關頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| IR2170 | 功能描述:IC CURRENT SENSE 600V 1MA 8-DIP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| IR2170S | 功能描述:IC CURRENT SENSE 600V 1MA 8-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)流/電流管理 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 功能:電流開關 檢測方法:- 精確度:±10% 輸入電壓:1.7 V ~ 5.5 V 電流 - 輸出:600mA 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:10-UFQFN 供應商設備封裝:10-UTQFN（1.4x1.8） 包裝:管件 |
| IR2171 | 制造商:IRF 制造商全稱:International Rectifier 功能描述:LINEAR CURRENT SENSING IC |
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