參數(shù)資料
型號: L6566B
廠商: 意法半導(dǎo)體
英文描述: Multi-mode controller for SMPS
中文描述: 多模式開關(guān)電源控制器
文件頁數(shù): 1/51頁
文件大小: 401K
代理商: L6566B
August 2007
Rev 1
1/51
51
L6566B
Multi-mode controller for SMPS
Features
Selectable multi-mode operation:
fixed frequency or quasi-resonant
On-board 700 V high-voltage start-up
Advanced light load management
Low quiescent current (< 3 mA)
Adaptive UVLO
Line feedforward for constant power capability
vs. mains voltage
Pulse-by-pulse OCP, shutdown on overload
(latched or autorestart)
Transformer saturation detection
Programmable frequency modulation for EMI
reduction
Latched or autorestart OVP
Brownout protection
-600/+800 mA totem pole gate driver with
active pull-down during UVLO
SO16N package
Figure 1.
Applications
Hi-end AC-DC adapter/charger
LCD TV/monitor, PDP
digital consumer, IT equipment
single-stage PFC
SO16N
www.st.com
Block diagram
+
-
PWM
+
-
ZERO CURRENT
DETECTOR
50 mV
100 mV
V
CC
9
15
7
ZCD
COMP
VFF
CS
GD
4
11
GND
3
LINE VOLTAGE
FEEDFORWARD
1.5 V
+
-
+
-
4.5V
DIS
8
LATCH
LEB
14V
Reference
voltages
Internal supply
5
V
CC
10
VREF
UVLO
VOLTAGE
REGULATOR
&
ADAPTIVE UVLO
FMOD
6
IC_LATCH
DISABLE
UVLO
Q
12
+
-
+
-
0.450V
0.485V
AC_OK
16
13
AC_FAIL
UVLO_SHF
V
CC
5.7V
1
HV
SOFT-START
&
FAULT MNGT
14
SS
OSC
MODE/SC
+
-
OSCILLATOR
R
S
Q
MODE SELECTION
&
TURN-ON LOGIC
OVERVOLTAGE
PROTECTION
15 μA
7.7V
OCP
TIME
OUT
TIME
OUT
+
-
Vth
BURST-MODE
LOW CLAMP
& DISABLE
OFF2
OFF2
I
charge
Hiccup-mode
OCP logic
3 V
400 uA
DRIVER
OCP2
+
-
6.4V
V
CC
1 mA
OVPL
OVP
OVPL
OVP
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L6566B_08 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Multi-mode controller for SMPS
L6566BH 功能描述:電流型 PWM 控制器 Multimode Controller SMPS 800V <3mA RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
L6566BHTR 功能描述:電流型 PWM 控制器 MULTIMODE CONTROLLER SMPS 8V 3 mA RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
L6566BTR 功能描述:電流型 PWM 控制器 MultiMode Controller for SMPS RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
L6566BTR-CUT TAPE 制造商:ST 功能描述:L6566B Series 23 V 4.6 mA SMPS Multi-Mode Controller Surface Mount - SOIC-16N