参数资料
型号: IR2166PBF
厂商: International Rectifier
文件页数: 28/32页
文件大小: 0K
描述: IC CONTROLLER PFC/BALLAST 16DIP
标准包装: 25
类型: PFC/镇流器控制器
频率: 39 ~ 50 kHz
电流 - 电源: 10mA
电流 - 输出: 400mA
电源电压: 11.5 V ~ 15.6 V
工作温度: -25°C ~ 125°C
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-DIP
包装: 管件
产品目录页面: 1383 (CN2011-ZH PDF)
其它名称: *IR2166PBF
IR2166 & (PbF)
Ballast Design Equations
Note: The results from the following design
equations can differ slightly from experimental
measurements due to IC tolerances, component
tolerances, and oscillator over- and undershoot
due to internal comparator response time.
Step 3: Program Preheat Frequency
The preheat frequency is programmed with
timing resistors RT and RPH, and timing
capacitor CT. The timing resistors are
connected in parallel internally for the duration
of the preheat time. The preheat frequency is
therefore given as:
Step 1: Program Dead-time
2 ? C T ? ? ?
+ 1475 ? ? [Hertz] (5)
The dead-time between the gate driver outputs
HO and LO is programmed with timing capacitor
CT and an internal dead-time resistor RDT. The
f PH =
1
? 0. 51 ? R T ? R PH
? R T + R PH
?
?
dead-time is the discharge time of capacitor CT
from 3/5VCC to 1/3VCC and is given as:
or
C T =
1475
? ?
? 2892 ? ? ? R T
R T ? ? ?
? 2892 ? ?
or
t DT = C T ? 1475 [Seconds]
t DT
[Farads]
(1)
(2)
R PH
=
? 1 ?
? 1 . 02 ? C T ? f PH ?
? 1 ?
? 1 . 02 ? C T ? f PH ?
[Ohms] (6)
Step 4: Program Preheat Time
Step 2: Program Run Frequency
The final run frequency is programmed with
timing resistor RT and timing capacitor CT. The
charge time of capacitor CT from 1/3VCC to
3/5VCC determines the on-time of HO and LO
The preheat time is defined by the time it takes
for the capacitor on pin CPH to charge up to
10 volts. An internal current source of 3uA flows
out of pin CPH. The preheat time is therefore
given as:
gate driver outputs. The run frequency is
therefore given as:
t PH = C PH ? 3 . 33 e 6
[Seconds] (7)
f RUN
=
1
2 ? C T ( 0 . 51 ? R T + 1475 )
[Hertz] (3)
or
C PH = t PH ? 0 . 3 e ? 6
[Farads] (8)
or
R T =
28
1
1 . 02 ? C T ? f RUN
? 2892
[Ohms] (4)
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