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参数资料
| 型号： | IR21593STRPBF |
| 厂商： | International Rectifier |
| 文件页数： | 17/26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)
HO
LO
V BUS (+)
VS
VCO
2
VCO
16
HO
Q2
V RCS
t
C VCO
1uA
1uA
PH
Half
Bridge
Driver
15
VS
Half
Bridge
Output
I LOAD
V IPH
C CPH
CPH
3
7.6V
LOGIC
11
LO
Q2
t
0.5 to 5V
DIM
4
DIM
INTERFACE
R DIM
FAULT
LOGIC
1.6V
10
CS
RCS
I CVCO
60uA
PHASE
CONTROL
12
IR21592/IR21593
COM
Load
Return
V BUS (-)
-1uA
t
Figure 9, IR21592/IR21593 ignition circuitry.
V CVCO
The ignition ramp is then initiated as the
t
Figure 8, Peak load current regulation timing diagram.
This feedback keeps the peak preheat current
regulated to the user-programmable setting on pin
IPH for the duration of the preheat time. An
internal current source connected to an external
resistor on pin IPH sets a voltage reference for
the peak pre-heat current. The pre-heat time
continues until the voltage on pin CPH exceeds
5V.
Ignition (IGN)
The IR21592/IR21593 enters ignition mode when
the voltage on pin CPH exceeds 5V. The peak
current regulation reference voltage is
disconnected from the user-programmable
setting on pin IPH and is connected to a higher
internal threshold of 1.6V (Figure 9).
www.irf.com
capacitor on pin VCO discharges linearly
through an internal 1uA current source. The
frequency decreases linearly towards the
resonance frequency of the high-Q ballast output
stage, causing the lamp voltage and load current
to increase (Figure 10). The frequency
continues to decrease until the lamp ignites or
the current limit of the IR21592/IR21593 is
reached. If the current limit is reached, the
IR21592/IR21593 enters FAULT mode. The 1.6V
threshold together with the external current
sensing resistor on pin CS determine the
maximum allowable peak ignition current (and
therefore peak ignition voltage) of the ballast
output stage. The peak ignition current must not
exceed the maximum allowable current ratings
of the output stage MOSFETs or IGBTs, and,
the resonant inductor must not saturate at
any time.
To prevent a "flash" across the lamp during
ignition at low dim settings, an ignition detection
17
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相关代理商/技术参数 |
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| 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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