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| 型号： | IRS2158DSPBF |
| 厂商： | International Rectifier |
| 文件页数： | 20/30页 |
| 文件大小： | 0K |
| 描述： | IC DVR HALF BRIDGE 600V 16-SOIC |
| 标准包装： | 45 |
| 类型： | 荧光灯驱动器 |
| 频率： | 42.5 ~ 48.5 kHz |
| 电流 - 电源： | 3.5mA |
| 电流 - 输出： | 260mA |
| 电源电压： | 11.5 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 |
| 产品目录页面： | 1382 (CN2011-ZH PDF) |
| 配用： | IRPLDIM3-ND - KIT DES FLUOR BALLAST IRS2158D |
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IRS2158D(S)
V BUS (+)
VCC
R CPH
C PH
CPH
3
MODE
16
HO
MHS
C VCO
VCO
4
M1
Half-
Bridge
Driver
15
VS
Half-
Bridge
Output
R PH
I LOAD
R FMIN
FMIN
5
OSC.
11
LO
MLS
10
CS R 3
IRS2158D
12
COM
C CS
R CS
Load
Return
V BUS (-)
Figure 3: Preheat circuitry.
MOSFET so the preheat frequency is determined by the equivalent resistance at the FMIN pin formed by the
parallel combination of resistors RMIN and RPH. The frequency remains at the preheat frequency until the
voltage on pin CPH exceeds 2/3*VCC (VCPHEOP) and the IC enters Ignition Mode. During preheat mode,
the over-current protection on pin CS (VCSTH+) and the 60-cycle consecutive over-current fault counter
(nEVENTS) are both enabled.
Ignition Mode (IGN)
The IRS2158D ignition mode is defined by the second time CPH charges from 1/3*VCC (VCPHSOI-) to
1/2*VCC (VCHPRUN). When the voltage on pin CPH exceeds 2/3*VCC (VCPHEOP) for the first time, pin
CPH is discharged quickly through an internal MOSFET down to 1/3*VCC (VCPHSOI-) (see Figures 4 and 5).
The internal MOSFET turns off and the voltage on pin CPH begins to increase again. The internal MOSFET
at pin VCO turns off and resistor RPH is disconnected from COM. The equivalent resistance at the FMIN pin
increases from the parallel combination (RPH//RMIN) to RMIN at a rate programmed by the external
capacitor at pin VCO (CVCO) and resistor RPH.
This causes the operating frequency to ramp down
smoothly from the preheat frequency through the ignition frequency to the final run frequency. During this
ignition ramp, the frequency sweeps towards the resonance frequency of the lamp output stage to ignite the
lamp.
V CPH
2/3*V CC
1/2*V CC
1/3*V CC
t PH = R CPH * C PH
t
V VCO
5V
t RAMP = R PH * C VCO
PREHEAT
IGN
PRERUN
RUN
t
Figure 4: CPH and VCO timing diagram.
www.irf.com
20
? 2009 International Rectifier
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相关代理商/技术参数 |
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|---|---|
| IRS2158DSTRPBF | 功能描述:功率驱动器IC Ballast Contrl IC 600V fully intgrtd 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 |
| IRS2166DPBF | 功能描述:功率驱动器IC PFC & Ballast 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 |
| IRS2166DPBF | 制造商:International Rectifier 功能描述:MOSFET Driver IC |
| IRS2166DSPBF | 功能描述:功率驱动器IC PFC BALLAST CTRL IC 600V 15.6V VCC ESD 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 |
| IRS2166DSPBF | 制造商:International Rectifier 功能描述:MOSFET Driver IC |
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