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参数资料
| 型号： | IR2167 |
| 厂商： | International Rectifier |
| 英文描述： | PFC BALLAST CONTROL IC |
| 中文描述： | PFC的镇流器控制IC |
| 文件页数： | 16/30页 |
| 文件大小： | 937K |
| 代理商： | IR2167 |
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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
相关PDF资料 |
PDF描述 |
|---|---|
| IR2167S | PFC Ballast Control. Thermal Overload Protection. Brown Out Protection. Programmable Preheat and Frequency. Programmable Deadtime in a 20 Lead SOIC package |
| IR2170 | OVER CURRENT SENSING IC |
| IR2170S | OVER CURRENT SENSING IC |
| IR2172 | LINEAR CURRENT SENSING IC |
| IR2172S | Linear Current Sensing. Direct Digital PWM Output. 1.5us Over-current Trip Signal Delay in a 8-lead SOIC package |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IR2167PBF | 功能描述:IC PFC BALLAST CTLR 20DIP RoHS:是 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 |
| IR2167S | 功能描述:IC CNTRLR BALLAST PFC 20-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 |
| IR2167SPBF | 功能描述:IC CTLR BALLAST PFC 20-SOIC RoHS:是 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 |
| IR2167STRPBF | 功能描述:功率因数校正 IC PFC Ballast Control, Thermal Overload Protection, RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel |
| IR2170 | 功能描述:IC CURRENT SENSE 600V 1MA 8-DIP RoHS:否 类别:集成电路 (IC) >> PMIC - 稳流/电流管理 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 功能:电流开关 检测方法:- 精确度:±10% 输入电压:1.7 V ~ 5.5 V 电流 - 输出:600mA 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:10-UFQFN 供应商设备封装:10-UTQFN（1.4x1.8） 包装:管件 |
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