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參數(shù)資料
| 型號： | L6562AD |
| 廠商： | 意法半導體 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Transition-mode PFC controller |
| 中文描述： | 過渡模式PFC控制器 |
| 文件頁數(shù)： | 13/20頁 |
| 文件大小： | 343K |
| 代理商： | L6562AD |
L6562A
Application information
13/20
6.5
Comparison between the L6562A and the L6562
The L6562A is not a direct drop-in replacement of the L6562, even if both have the same
pin-out. One function (Disable) has been relocated.
Table 2 compares the two devices, i.e. those parameters that may result in different values
of the external components. The parameters that have the most significant impact on the
design, i.e. that definitely require external component changes when converting an L6562-
based design to the L6562A, are highlighted in bold.
The lower value (-36%) for the clamp level of the current sense reference voltage allows the
use of a lower sense resistor for the same peak current, with a proportional reduction of the
associated power dissipation. Essentially, the advantage is the reduction of the power
dissipated in a single point (hotspot), which is a considerable benefit in applications where
heat removal is critical as in adapters closed/plastic case. The lower value for the Dynamic
OVP triggering current allows the use of a higher resistance value (+48%) for the upper
resistor of the divider sensing the output voltage of the PFC stage (keeping the same
overvoltage level) with no significant increase of noise sensitivity. This reduction goes in
favor of stand-by consumption in applications required to comply with energy saving
regulations.
Table 5. L6562A vs. L6562
Parameter
L6562
L6562A
IC turn-on & turn-off thresholds (typ.)
12/9.5 V
12.5/10 V
Turn-off threshold spread (max.)
±0.8 V
±0.5 V
IC consumption before start-up (max.)
70 uA
60 uA
Multiplier gain (typ.)
0.6
0.38
Current sense reference clamp (typ.)
1.7 V
1.08 V
Current sense propagation delay (delay-to-output)
(typ.)
200 ns
175 ns
Dynamic OVP triggering current (typ.)
40 uA
27 uA
ZCD arm/trigger/clamp thresholds (typ.)
2.1/1.4/0.7 V
1.4/0.7/0 V
Enable threshold (typ.)
0.3 V
(1)
1.
Function located on pin 5 (ZCD)
0.45 V
(2)
2.
Function located on pin 1 (INV)
Gate-driver internal drop (max.)
2.6 V
2.2 V
Leading-edge blanking on current sense
No
Yes
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6562ADTR | Transition-mode PFC controller |
| L6562AN | Transition-mode PFC controller |
| L6563_07 | Advanced transition-mode PFC controller |
| L6563A | ADVANCED TRANSITION-MODE PFC CONTROLLER |
| L6563ATR | ADVANCED TRANSITION-MODE PFC CONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6562ADTR | 功能描述:功率因數(shù)校正 IC HV H-Bridge driver RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6562ADTR☞原裝☜ | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:深創(chuàng)輝科技，全新原裝L6562ADTR☞原裝☜ |
| L6562AN | 功能描述:功率因數(shù)校正 IC Low 2.5mA 30uA Transition Mode PFC RoHS:否 制造商:Fairchild Semiconductor 開關(guān)頻率:300 KHz 最大功率耗散: 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Reel |
| L6562AT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Transition-mode PFC controller |
| L6562ATD | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 Transition-mode PFC controller RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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