参数资料
| 型号： | IRPLMB1E |
| 厂商： | International Rectifier |
| 文件页数： | 2/13页 |
| 文件大小： | 0K |
| 描述： | KIT DESIGN BALLAST 220VAC |
| 标准包装： | 1 |
| 其它名称： | *IRPLMB1E |
IRPLMB1E
2. Features
! operating frequencies determined by bi-polar tran-
sistor storage time and toroid saturation (not easy to
!
!
Programmable run frequency
Programmable preheat time
design, very dependent on tolerances in production
and difficult to set the frequencies precisely),
!
!
!
Open filaments and no-lamp protection
Failure to Strike and deactivated-lamp protection
Low AC line protection
!
!
unreliable “always hot” PTC thermistor used for
preheat that often fails in the field,
no protection against lamp non-strike or open
3. Electrical Characteristics
Input Power: 24W @ 220VAC
Input Current: 168mArms @ 220VAC
!
!
!
filaments conditions,
no smooth frequency ramping during ignition,
capacitive mode operations,
high crest factor in the lamp current.
Starting Frequency: 100KHz
Average Run Frequency: 40KHz
Ballast turn-on voltage: 120VAC
Ballast turn-off voltage: 70VAC
These can result in high susceptibility to components
and load tolerances and/or catastrophic failure of
ballast output stage components and a short lamp
life. The IR2520D includes adaptive zero-voltage
Input
(VAC)
200
210
220
230
240
Pin
(W)
21
22
24
24.2
24.5
Iinrms
(mA)
160
160
168
168
168
Vbusav
(V)
280
290
300
310
320
Freq.
(KHz)
40.3
40.3
40.3
40.3
40.3
PF
0.63
0.625
0.62
0.62
0.61
THD
(%)
115
117
118
118
118
switching (ZV, adaptive run frequency for zero-volt-
age switching), internal crest factor and non-zero
voltage switching (ZVS) protection, as well as an in-
tegrated bootstrap diode. The heart of this IC is a
voltage controlled oscillator (VCO) with externally
programmable minimum frequency and a 0-5VDC
analog voltage input. One of the biggest advantages
4. IR2520D Ballast Control IC
The IR2520D is intended for driving CFL and TL
lamps in CFL or matchbox (small size ballasts)
applications. The IR2520D integrates all of the
necessary functions for preheat, ignition and on-state
operation of the lamp, plus, lamp fault protection and
low AC-line protection, together with a complete high
and low-side 600V half-bridge driver. The IR2520D
has only 8 pins and fits into a standard SOIC8 or
DIP8 package. The IR2520D has been designed to
overcome the disadvantage of discrete self-
oscillating solutions while maintaining low cost.
In the CFL market, the self-oscillating bipolar
transistor solution is still more popular than a
ballast control IC plus FETs solution due to lower
cost. This approach is very simple in nature but has
disadvantages including:
! DIAC or additional circuit required for starting,
additional free-wheeling diodes required
2
of the IR2520 is that it uses the VS pin and the RDSon
of the low-side half-bridge MOSFET for over-current
protection and to detect non-ZVS conditions. An
internal 600V FET connects the VS pin to the VS sens-
ing circuitry and allows for the VS pin to be accu-
rately measured during the time when pin LO is
high, while withstanding the high DC bus voltage
during the other portion of the switching cycle when
the high-side FET is turned on and VS is at the DC
bus potential. This eliminates the need for a high-
precision current sensing resistor that is typically
used to detect over current. Please refer to the
IR2520D datasheet for further information on the
IR2520D including electrical parameters, state
diagram and complete functional description.
As a result of the IR2520 features, the MINIBALLAST1
circuit using the IR2520D is a complete matchbox
solution that offers better reliability and longer lamp
life than self oscillating solutions while reducing
component count and ballast size.
www.irf.com
相关PDF资料 |
PDF描述 |
|---|---|
| IS-418-TR1509-12 | POWER SUPPLY 240VAC FOR DEV KIT |
| IS-DEM KIT-2 | SMARTDISPLAY DEMONSTRATION KIT 2 |
| IS-DEV KIT-1 | SMARTSWITCH DEVELOPMENT KIT 1 |
| IS-DEV KIT-2 | SMARTSWITCH DEVELOPMENT KIT 2 |
| IS-DEV KIT-6C | KIT DEV LCD 64X32 COMPACT SWITCH |
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