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参数资料
| 型号： | IR21592S |
| 厂商： | International Rectifier |
| 英文描述： | DIMMING BALLAST CONTROL IC |
| 中文描述： | 调光镇流器控制IC |
| 文件页数： | 21/25页 |
| 文件大小： | 259K |
| 代理商： | IR21592S |
IR21592/IR21593
(S)
www.irf.com
21
BLANK
V
CS
t
LO
Switching
Noise
Dimming
Range
Fault Mode (FAULT)
During dimming, the peak current regulation circuit
active during preheat and ignition is disabled.
Should non-zero voltage switching at the output
of the half-bridge occur (Figure 17), high current
spikes will result. A lamp filament failure, lamp
end-of-life, lamp removal, or a deadtime shorter
than what is required for commutation, can all
cause hard-switching.
t
t
VS
HO
LO
V
CS
1.6V
NORMAL
OPERATION
HARD
SWITCHING
FAULT
LOAD
REMOVAL
Figure 17, hard-switching with latch off
Figure 16, Current sense timing diagram.
Should the peak voltage on pin CS exceed 1.6V
at any time during dimming, the IR21592/IR21593
enters FAULT mode and the high and low-side
driver outputs, HO and LO, are both turned off.
Cycling the supply voltage on VCC below UVLO-
or the voltage on pin SD above and below SD+
and SD- will reset the IR21592/IR21593 to preheat
(PH) mode (see STATE DIAGRAM).
Ballast Design
Lamp Requirements
Before selecting component values for the ballast
output stage and the programmable inputs of
the IR21592/IR21593, the following lamp
requirements must first be defined:
Variable
I
Description
Units
ph
Filament pre-heat current
Arms
ph
t
Filament pre-heat time
s
max
ph
V
V
Maximum lamp pre-heat voltage
Vpp
ign
Lamp ignition voltage
Vpp
%
100
P
V
Lamp power at 100% brightness
W
%
100
Lamp voltage at 100% brightness
Vpp
%
1
P
1
V
Lamp power at 1% brightness
W
%
Lamp voltage at 1% brightness
Vpp
min
Cath
I
Minimum cathode heating current
Arms
Table I, Typical lamp requirements
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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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