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| 型号： | IRS2158DSPBF |
| 厂商： | International Rectifier |
| 文件页数： | 19/30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 C1
V UVLO+
VHYST
V UVLO-
C VCC
DISCHARGE
INTERNAL VCC
ZENER CLAMP VOLTAGE
DISCHARGE
TIME
CHARGE PUMP
OUTPUT
R VCC & C VCC1,2
TIME
CONSTANT
t
Figure 2: VCC supply voltage.
When LO and HO are both oscillating, the external MOSFETs (MHS and MLS) are turned on and off with a
50% duty cycle and a non-overlapping deadtime of 1.5 μ s. The half-bridge output (pin VS) begins to switch
between the DC bus voltage and COM. During the deadtime between the turn-off of LO and the turn-on of
HO, the half-bridge output voltage transitions from COM to the DC bus voltage at a dv/dt rate determined by
the snubber capacitor (C SNUB ). As the snubber capacitor charges, current will flow through the charge pump
diode (D CP2 ) to VCC. After several switching cycles of the half-bridge output, the charge pump and the
internal 15.6 V zener clamp of the IC take over as the supply voltage. Capacitor C VCC2 supplies the IC
current during the VCC discharge time and should be large enough such that VCC does not decrease below
VCCUV- before the charge pump takes over. Capacitor C VCC1 is required for noise filtering and must be
placed as close as possible and directly between VCC and COM, and should not be lower than 0.1uF.
Additional resistors are recommended for limiting high currents that can flow to VCC from the charge pump
during hard-switching of the half-bridge or during lamp ignition. In the application circuit shown above, DCP2
is a 17 V zener diode, which serves to limit the voltage transients that are supplied to VCC through the
charge pump, under these conditions. The IC may not operate correctly if steps are not taken to prevent
overdriving VCC through the charge pump.
The internal bootstrap MOSFET and supply capacitor (C BS ) comprise the supply voltage for the high side
driver circuitry. During UVLO mode, the high- and low-side driver outputs HO and LO are both low, the
internal oscillator is disabled, and pin CPH is connected internally to COM for resetting the preheat time.
Preheat Mode (PH)
The IRS2158D enters preheat mode when VCC exceeds the UVLO positive-going threshold (VCCUV+) and
the VDC pin voltage is above the 5 V threshold. The internal MOSFET that connects pin CPH to COM is
turned off and an external resistor (Figure 3) begins to charge the external preheat timing capacitor (CPH).
LO and HO begin to oscillate at a higher soft-start frequency and ramp down quickly to the preheat
frequency. The VCO pin is connected to COM through an internal
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19
? 2009 International Rectifier
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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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