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PDF EM8822A Data sheet ( Hoja de datos )
| Número de pieza | EM8822A | |
| Descripción | Single stage Buck/Buck-Boost PFC Controller | |
| Fabricantes | Excelliance MOS | |
| Logotipo |  |
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EM8822A
Single stage Buck/Buck-Boost PFC Controller for LED Lighting
Applications
General Description
EM8822A is a voltage mode Buck/Buck-boost PFC
controller operating at transition mode. It keeps
the Buck / Buck-boost converter in constant on
time operation to achieve high power factor.
This device provides protections of internal soft
start, over voltage protection, over current
protection and thermal shutdown. It can minimize
the external components counts, and makes the
design easy.
This part is available in SOP-23-6 package.
Applications
General LED lighting applications
Bulb lamp
Tube lamp
PAR lamp
Pin Configuration
Ordering Information
Part Number Package
EM8822AJ SOP-23-6
Remark
EM8822A
Features
Single stage Buck/Buck-Boost PFC controller
Voltage Mode Control
Valley turn on of the MOSFET to achieve
lower switching loss
Low Start Up Current : 6uA typical
Maximum gate drive voltage at 19.5V
Over Voltage Protection for IC bias voltage
LED Open/Short Protection
Internal over-thermal Shutdown
2014/03/21
preliminary
1
1 page  
Negative Threshold Voltage
Minimum Off Time
VTH_N
TMIN_OFF
Gate On Time
Ton
Input bias current
Max. delay from ZCD to
OUT
AC absent
Gate Drive Output
Rise Time
TR
Fall Time
Gate Clamp Voltage
Output Low Level
Output High Level
Start-up
TF
VG_CLAMP
VOL
VOH
Startup Period
(Max Off Time)
Max. On Time
Over Temperature Protection
Thermal Shutdown
Temperature
TSD
Thermal Shutdown Resume TSDHYS
VCOMP ≥ 1V
VCOMP = 0.4V
VCOMP=3V
VCOMP=0.27V
VZCD=1V~5V, OUT=OFF
AC absent detect time
VCC=16V, CL = 1nF, Vgs : 1 to 9V
VCC=16V, CL = 1nF, Vgs : 1 to 9V
VCC>=20V
ISINK=1mA
ISOURCE=1mA
0.6
3.0
4
10
0.3
0.005
-
6.0
55
15
EM8822A
0.7 0.8
V
4.0 5.0
us
5.5 7
us
11 12
us
0.6 0.9
us
1 uA
250 ns
20 ms
60
60
15.5 17.5
- 1.0
- VCC
ns
ns
V
V
V
75
18.5
us
us
140 °C
110 °C
Note 1.
Note 2.
Note 3.
Note 4.
Stresses listed as the above “Absolute Maximum Ratings” may cause permanent damage to the device. These are for
stress ratings. Functional operation of the device at these or any other conditions beyond those indicated in the
operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended
periods may remain possibility to affect device reliability.
θJA SOP-8 packages is 52°C /W on JEDEC 51-7 (4 layers,2S2P) thermal test board with 50mm2 copper area.
Devices are ESD sensitive. Handling precaution is recommended.
The device is not guaranteed to function outside its operating conditions.
2014/03/21
preliminary
5
5 Page | ||
| Páginas | Total 9 Páginas | |
| PDF Descargar | [ Datasheet EM8822A.PDF ] | |
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