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| 型号： | IRS2573DSPBF |
| 厂商： | International Rectifier |
| 文件页数： | 21/28页 |
| 文件大小： | 0K |
| 描述： | IC BALLAST CNTRLLER 600V 28-SOIC |
| 标准包装： | 25 |
| 类型： | HID 灯控制器 |
| 频率： | 160 ~ 240 Hz |
| 电流 - 电源： | 10mA |
| 电流 - 输出： | 180mA |
| 电源电压： | 9.5 V ~ 16.6 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 28-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 28-SOIC W |
| 包装： | 管件 |
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IRS2573D
lamp has successfully ignited and the IC will enter General Mode. The IGN pin (ignition gate driver output) will
remain ‘high’ until the ignition timer has timed out.
Under-Voltage Fault Counter
The IC also includes an under-voltage fault counter at the VSENSE pin. Once the lamp has ignited, the lamp
voltage will decrease sharply to a very low voltage (20V typical). As the lamp warms up, the lamp voltage will
slowly increase until the nominal running voltage is reached (100V typical). If the lamp voltage remains too low
for too long, then this is a lamp fault condition and the ballast must shutdown. To detect this, the VSENSE pin
includes an under-voltage threshold of VOV(1/7.5). If the voltage at the VSENSE pin remains below VOV(1/7.5)
and the under-voltage fault counter times out (197sec typical), then the lamp is not warming up properly due to a
lamp fault condition (end of life, etc.) and the IC will enter fault mode and shutdown. If the voltage at the
VSENSE pin increases above VOV(1/7.5) before the under-voltage counter times out, then the lamp has
successfully warmed up and the IC will remain in general mode.
A fast transient under-voltage detection is also
included at the VSENSE pin of the IC.
Fast Transient Under-Voltage Fault Counter
During normal running conditions, fast transient under-voltage spikes can occur on the lamp voltage due to
instabilities in the lamp arc. The resulting transients on the VSENSE pin will cycle below and above the
VOV(1/7.5) threshold quickly (<50us). If the number of events of these transients exceeds the maximum number
of events of the fault counter (16384 events typical), then the IC will enter fault mode and shutdown.
Good Counter
If no faults are detected for a long period of time (2730sec typical), as measured by the good counter, then the
fault counter and good counter will both be reset to zero. Also, each time a fault is counted, the good counter is
reset to zero.
Fault Reset
To exit Fault Mode and return to UVLO Mode, VCC can be decreased below UVLO- and back above UVLO+, or,
the RST pin can be increased above 2.5V.
PCB Layout Tips
Distance between high and low voltage components:
It’s strongly recommended to place the components tied to
the floating voltage pins (V B and V S ) near the respective high voltage portions of the device.
Ground Plane: In order to minimize noise coupling, the ground plane should not be placed under or near the high
voltage floating side.
Gate Drive Loops: Current loops behave like antennas and are able to receive and transmit EM noise (see Figure
9). In order to reduce the EM coupling and improve the power switch turn on/off performance, the gate drive loops
must be reduced as much as possible. Moreover, current can be injected inside the gate drive loop via the IGBT
collector-to-gate parasitic capacitance. The parasitic auto-inductance of the gate loop contributes to developing a
voltage across the gate-emitter, thus increasing the possibility of a self turn-on effect.
www.irf.com
21
? 2009 International Rectifier
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| IRS2573DSTRPBF | 功能描述:功率驱动器IC Buck & Full-Brdg HID 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 |
| IRS25801DSTRPBF | 制造商:International Rectifier 功能描述:600V 999.000A SOIC - Tape and Reel 制造商:International Rectifier 功能描述:IC POWER FACTOR CORRECT PFC |
| IRS25803DSPBF | 制造商:International Rectifier 功能描述:CIC SOIC-8N - Tape and Reel 制造商:International Rectifier 功能描述:SEMICONDUCTOR OTHER 制造商:International Rectifier 功能描述:Fluorescent PFC 305VAC SOIC |
| IRS25803DSTRPBF | 制造商:International Rectifier 功能描述:CIC SOIC-8N - Tape and Reel 制造商:International Rectifier 功能描述:SEMICONDUCTOR OTHER 制造商:International Rectifier 功能描述:Fluorescent PFC 305VAC SOIC |
| IRS2580DSPBF | 功能描述:功率驱动器IC COMPBO8 PFC HALF-BRDG BALLAST 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 |
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