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参数资料
| 型号： | IR21592S |
| 厂商： | International Rectifier |
| 文件页数： | 16/26页 |
| 文件大小： | 0K |
| 描述： | IC CNTRLR BALLAST DIMMING 16SOIC |
| 标准包装： | 45 |
| 类型： | 镇流器控制器 |
| 频率： | 73 ~ 108 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： | 管件 |
| 配用： | IRPLDIM2U-ND - BALLAST DIM DIG 32W/T8 120VAC |
| 其它名称： | *IR21592S |
IR21592/IR21593 (S) &(PbF)
Brown-out Protection
V BUS (+)
In addition to the voltage on VCC being above
the start-up threshold, pin VDC must also be
60uA
above 5.1V for HO and LO to begin oscillating. A
voltage divider (R3,RVDC) from the rectified AC
line connected to pin VDC measures the rectified
AC line input voltage to the ballast and programs
the turn-on and turn-off line voltages. A filter
capacitor (CVDC) is also connected to pin VDC
C VCO
C CPH
VCO
CPH
2
3
1uA
1uA
7.6V
VCO
PH
LOGIC
Half
Bridge
Driver
16
15
11
HO
VS
LO
Q2
Q2
Half
Bridge
Output
I LOAD
that must be chosen such that the ripple is low
FMIN
7
I FMIN
enough and the lower turn-off threshold of 3V is
not crossed during normal line conditions. This
R FMIN
5.1V
10
CS
RCS
detection is necessary due to the possibility of
the lamp extinguishing during low-line conditions
before the IC is properly reset. Should a brown-
out occur, the DC bus can drop to a level below
V BUS (-)
R IPH
IPH
8
1/R FMIN
12
IR21592/IR21593
COM
Load
Return
the minimum required for the tank circuit to
maintain the necessary lamp voltage. This
detection will insure a clean turn-off before the
DC bus drops too low and properly resets the
IC to the preheat mode when the line returns.
Preheat (PH)
The IR21592/IR21593 enters preheat mode
when VCC exceeds the UVLO+ threshold and
VDC exceeds 5.1V. HO and LO begin to
oscillate at the maximum operating frequency
with 50% duty cycle and at the internally set
dead-time of 2us (IR21592) or 1 μ s (IR21593). Pin
CPH is disconnected from COM and an internal
1uA current source (Figure 7) charges the external
timing capacitor on CPH linearly.
16
Figure 7, IR21592/IR21593 preheat circuitry.
An internal 1uA current source slowly discharges
the external capacitor on pin VCO and the voltage
on pin VCO begins to decrease. This decreases
the frequency, which, for operating frequencies
above resonance, increases the load current.
When the peak voltage measured on pin CS,
produced by a portion of the load current flowing
through an external sense resistor (RCS), exceeds
the voltage level on pin IPH, a 60uA internal
current source is connected to pin VCO and the
capacitor charges (Figure 8). This forces the
frequency to increase and the load current to
decrease. When the voltage on pin CS decreases
below the voltge on pin IPH, the 60uA current
source is disconnected and the frequency
decreases again.
www.irf.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| IR21592SPBF | 功能描述:功率驱动器IC DIMMING BALLAST CTRL 0.5 to 5V DC 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 |
| IR21592STR | 功能描述:IC CNTRLR BALLAST DIMMING 16SOIC 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 |
| IR21592STRPBF | 功能描述:功率驱动器IC Dim Ballast Cntrl 1.8us Deadtime 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 |
| IR21593 | 功能描述:IC CTRLR BALLAST DIMMING 16-DIP 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 |
| IR21593PBF | 功能描述:功率驱动器IC Dim Ballast Cntrl 1.8us Deadtime 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 |
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