- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384509 > IRP2166 (International Rectifier) PFC & BALLAST CONTROL IC PDF資料下載
參數(shù)資料
| 型號： | IRP2166 |
| 廠商： | International Rectifier |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | PFC & BALLAST CONTROL IC |
| 中文描述： | 功率因數(shù)校正 |
| 文件頁數(shù)： | 19/32頁 |
| 文件大?。?/td> | 616K |
| 代理商： | IRP2166 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
IR2166 & (PbF)
www.irf.com
19
IR2166
LO
COM
VB
VS
HO
V
BUS
(+)
V
BUS
(-)
VCC
D
BOOT
C
BOOT
16
15
14
13
12
11
M2
M1
C
VCC
R
SUPPLY
D
CP1
D
CP2
Half-Bridge
Output
R
CS
C
SNUB
I. Ballast Section
Functional Description
Under-voltage Lock-Out Mode (UVLO)
The under-voltage lock-out mode (UVLO) is
defined as the state the IC is in when VCC is
below the turn-on threshold of the IC. To identify
the different modes of the IC, refer to the State
Diagram shown on page 7 of this document. The
IR2166 undervoltage lock-out is designed to
maintain an ultra low supply current of less than
400uA, and to guarantee the IC is fully functional
before the high and low side output drivers are
activated. Figure 1 shows an efficient supply
voltage using the start-up current of the IR2166
together with a charge pump from the ballast
output stage (R
SUPPLY
, C
VCC
, D
CP1
and D
CP2
).
Figure 1, Start-up and supply circuitry.
The start-up capacitor (CVCC) is charged by
current through supply resistor (RSUPPLY)
minus the start-up current drawn by the IC. This
resistor is chosen to set the line input voltage
turn-on threshold for the ballast . Once the
capacitor voltage on VCC reaches the start-up
threshold, and the SD pin is below 5.0 volts, the
IC turns on and HO and LO begin to oscillate.
The capacitor begins to discharge due to the
increase in IC operating current (Figure 2).
DISCHARGE
TIME
INTERNAL VCC
ZENER CLAMP VOLTAGE
VHYST
V
UVLO+
V
UVLO-
CHARGE PUMP
OUTPUT
t
V
C1
R
& C
VCC
TIME
CONSTANT
C
DISCHARGE
Figure 2, Supply capacitor (C
VCC
) voltage.
During the discharge cycle, the rectified current
from the charge pump charges the capacitor above
the IC turnoff threshold. The charge pump and
the internal 15.6V zener clamp of the IC take over
as the supply voltage. The start-up capacitor and
snubber capacitor must be selected such that
enough supply current is available over all ballast
operating conditions. A bootstrap diode (DBOOT)
and supply capacitor (CBOOT) comprise the
supply voltage for the high side driver circuitry.
To guarantee that the high-side supply is charged
up before the first pulse on pin HO, the first pulse
from the output drivers comes from the LO pin.
During under-voltage lockout mode, the high-
and low-side driver outputs HO and LO are both
low, pin CT is connected internally to COM to
disable the oscillator, and pin CPH is connected
internally to COM for resetting the preheat time.
Preheat Mode (PH)
The preheat mode is defined as the state the IC
is in when the lamp filaments are being heated to
their correct emission temperature. This is
necessary for maximizing lamp life and reducing
the required ignition voltage. The IR2166 enters
preheat mode when VCC exceeds the UVLO
positive-going threshold. HO and LO begin to
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| IRPLDIM2a | Digitally Addressable DALI Dimming Ballast Reference Design |
| IRPLLNR3 | Universal Input Linear Fluorescent Ballast using the IR2167 |
| IRPT1061A | Power Module for 1 hp Motor Drives |
| IRPT3054A | Power Module for 5 hp Motor Drives |
| IRPT5051C | Integrated Power Stage for 15 hp Motor Drives |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| IRP22N50A | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Power MOSFET |
| IRP22N50APBF | 制造商:VISHAY 制造商全稱:Vishay Siliconix 功能描述:Power MOSFET |
| IRP38L000 | 制造商:Amphenol PCD 功能描述:DIN-RAIL INTERFACE MODULE PRODUCT -SEE CATALOG - Bulk |
| IRP38R000 | 制造商:Amphenol PCD 功能描述:DIN-RAIL INTERFACE MODULE PRODUCT -SEE CATALOG - Bulk |
| IRP3F422 | 制造商:APEM 功能描述: 制造商:APEM 功能描述:IP67 SEALED PUSHBUTTON SWITCH |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。