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參數(shù)資料
| 型號： | L6668TR |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | SMART PRIMARY CONTROLLER |
| 中文描述： | 智能主控制器 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大小： | 671K |
| 代理商： | L6668TR |
1/23
L6668
May 2005
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
1
General Features
■
MULTIPOWER BCD TECHNOLOGY
■
LOAD-DEPENDENT CURRENT-MODE CON-
TROL: FIXED-FREQUENCY (HEAVY LOAD),
FREQUENCY FOLDBACK (LIGHT LOAD),
BURST-MODE (NO-LOAD)
■
ON-BOARD HIGH-VOLTAGE START-UP
■
IMPROVED STANDBY FUNCTION
■
LOW QUIESCENT CURRENT (< 2 mA)
■
SLOPE COMPENSATION
■
PULSE-BY-PULSE & HICCUP-MODE OCP
■
INTERFACE WITH PFC CONTROLLER
■
DISABLE FUNCTION (ON/OFF CONTROL)
■
LATCHED DISABLE FOR OVP/OTP FUNC-
TION
■
PROGRAMMABLE SOFT-START
■
2% PRECISION REFERENCE VOLTAGE EX-
TERNALLY AVAILABLE
■
±800 mA TOTEM POLE GATE DRIVER WITH
INTERNAL CLAMP AND UVLO PULL-DOWN
■
BLUE ANGEL, ENERGY STAR, EU CODE OF
CONDUCT COMPLIANT
Figure 2. Block Diagram
■
SO16 PACKAGE ECOPACK
1.1 APPLICATIONS
■
HI-END AC-DC ADAPTERS/CHARGERS FOR
NOTEBOOKS.
■
LCD/CRT MONITORS, LCD/CRT TV
■
DIGITAL CONSUMER
16
Vref
+
-
1.5V
12
BLANKING
R
S
Q
25V
Vcc_OK
DIS
0.8V
4R
11R
DIS
11
10
3
4
8
5
15
15V
CLK
COMP
SS
ISEN
RCT
S-COMP
V
CC
VREF
GND
OUT
HICCUP
13
COMP.
VREG
VREG
0.4mA
TIMING
PWM
+
-
1
HV
ST-BY
and UVLO management
Vcc_OK
14
PFC_STOP
2.2/2.7V
-
+
OCP
DIS
-
+
9
SKIPADJ
SOFT-START
HYST. CTRL
S
Q
R
S
Q
R
STANDBY
2.2V
7
DIS
-
+
6
N.C.
SLOPE
HV generator ON/OFF
OCP
PRELIMINARY DATA
SMART PRIMARY CONTROLLER
Rev. 1
Figure 1. Package
Table 1. Order Codes
Part Number
L6668
L6668TR
Package
SO-16
SO-16 in Tape & Reel
SO-16 (Narrow)
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