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參數(shù)資料
| 型號(hào)： | L6563TR |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | ADVANCED TRANSITION-MODE PFC CONTROLLER |
| 中文描述： | 先進(jìn)的轉(zhuǎn)型模式PFC控制器 |
| 文件頁數(shù)： | 2/25頁 |
| 文件大?。?/td> | 362K |
| 代理商： | L6563TR |
L6563
2/25
2 DESCRIPTION
(continued)
The highly linear multiplier, along with a special correction circuit that reduces crossover distortion of the
mains current, allows wide-range-mains operation with an extremely low THD even over a large load
range.
The output voltage is controlled by means of a voltage-mode error amplifier and a precise (1.5% @T
j
= 25°C)
internal voltage reference. The stability of the loop and the transient response to sudden mains voltage
changes are improved by the voltage feedforward function (1/V
2
correction).
Additionally, the IC provides the option for tracking boost operation (where the output voltage is changed
tracking the mains voltage). The device features extremely low consumption (
≤
90 μA before start-up and
≤
5 mA running).
An interface with the PWM controller of the DC-DC converter supplied by the PFC pre-regulator is provid-
ed: the purpose is to stop the operation of the converter in case of anomalous conditions for the PFC stage
(feedback loop failure, boost inductor's core saturation) and to disable the PFC stage in case of light load
for the DC-DC converter, so as to make it easier to comply with energy saving norms (Blue Angel, Ener-
gyStar, Energy2000, etc.). The device includes disable functions suitable for remote ON/OFF control both
in systems where the PFC pre-regulator works as a master and in those where it works as a slave.
In addition to an effective two-step OVP that handles normal operation overvoltages, the IC provides also
a protection against feedback loop failures or erroneous output voltage setting.
Table 2. Absolute Maximum Ratings
Table 3. Thermal Data
Figure 3. Pin Connection
(Top view)
Symbol
Vcc
---
---
I
PWM_STOP
I
ZCD
Pin
14
Parameter
Value
self-limited
-0.3 to 8
Self-limited
3
-10 (source)
10 (sink)
0.75
-25 to 150
-55 to 150
Unit
V
V
V
mA
mA
IC Supply voltage (Icc = 20 mA)
Analog Inputs & Outputs
Max. pin voltage (I
pin
=1 mA)
Max. sink current
Zero Current Detector Max. Current
2, 4 to 6, 8 to 10
1, 3, 7
10
11
Ptot
Tj
Tstg
Power Dissipation @Tamb = 50°C
Junction Temperature Operating range
Storage Temperature
W
°C
°C
Symbol
R
th j-amb
Parameter
Value
120
Unit
°C/W
Thermal Resistance, Junction-to-ambient
Max.
INV
COMP
MULT
CS
VFF
TBO
PFC_OK
Vcc
GD
GND
ZCD
RUN
PWM_STOP
PWM_LATCH
1
2
3
4
5
6
7
14
13
12
11
10
9
8
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