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參數(shù)資料
| 型號： | LX1661 |
| 廠商： | Microsemi Corporation |
| 英文描述： | ADVANCED PWM CONTROLLER |
| 中文描述： | 先進的PWM控制器 |
| 文件頁數(shù)： | 1/15頁 |
| 文件大?。?/td> | 323K |
| 代理商： | LX1661 |
A
D V A N C E D
PWM C
O N T R O L L E R
P
R O D U C T I O N
D
A T A
S
H E E T
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O V A T I O N
LX1660/1661
LIN D
OC
#: 1660
D E S C R I P T I O N
K E Y F E AT U R E S
I
Designed To Drive A Synchronous Rectifier
Stage — Can Also Be Used In Non-
Synchronous Applications
I
Soft-Start Capability
I
Hiccup-Mode Fault Protection
I
No Current-Sense Resistor Required For
Current Limiting
I
Modulated Constant Off-Time Control
Mechanism For Fast Transient Response And
Simple System Design
I
2V, 0.5% Internal Voltage Reference Brought
Out
The LX1660 and LX1661 Are Mono-
lithic Switching Regulator Controller
ICs
designed to provide low-cost, high-
performance adjustable power supply for
microprocessors and other applications
requiring a fast transient response and a
high degree of accuracy. They provide
an adjustable synchronous Pulse Width
Modulator output suitable for a power
supply for Pentium
or other micropro-
cessors.
Synchronous Rectifier Driver For
CPU Core.
The devices can drive dual
MOSFETs resulting in typical efficiencies
of 85 - 90%, even with loads in excess of
10A. Synchronous shutdown results in
increased efficiency in light load applica-
tions.
Short-Circuit Current Limiting
Without Expensive Current Sense Re-
sistors.
The current sensing mechanism
can use a PCB trace resistance or the para-
sitic resistance of the main inductor. For
applications requiring a high degree of
accuracy, a conventional sense resistor
can be used.
Hiccup Mode Fault Protection.
The
hiccup mode is programmable and with
pulse-by-pulse current limiting will help
protect the power supply system and load
in the even of a short circuit.
Ultra-Fast Transient Response Re-
duces System Cost.
The fixed frequency
modulated off-time architecture results in
the fastest transient response for a given
inductor. Adaptive voltage positioning
(LX1661 only) requires fewer low-ESR ca-
pacitors to meet stringent transient over-
and under-shoot specifications.
P R O D U C T H I G H L I G H T
PA C K A G E O R D E R I N F O R M AT I O N
Plastic DIP
16-pin
0 to 70
LX166xCN
T
A
(°C)
LX166xCD
N
Plastic SOIC
16-pin
D
LX1661 I
N
S
OCKET
7
P
ROCESSOR
S
UPPLY
A
PPLICATION
A P P L I C AT I O N S
I
Pentium Processor Supplies
I
AMD-K6
TM
Supplies
I
Cyrix
6x86
TM
Supplies
I
Voltage Regulator Modules
I
General Purpose DC:DC Supplies
Note: All surface-mount packages are available in Tape & Reel.
Append the letter "T" to part number. (i.e. LX166xCDT)
EN
OT
ADJ
SGND
V
REF
INV
NINV
HICCUP
C
T
C8
390pF
TDRV
PGND
V
CC
CS-
CS+
SYNCEN
BDRV
V
C1
LX1661
R16
10k
C3
0.1μF
C4
390pF
R15
2.0k
1%
R14, 1%
See Table 5
C9
1μF
12V
L1
R1, 5m
16V, 1000μF
Sanyo MV-GX or
equivalent
V
OUT
16V, 1000μF
Sanyo MV-GX or equivalent
V
IN
5V
16-pin SOIC
C1
390pF
Q1
IRL3103
5μH Toroid
D1
C5
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
C2
C7
C6
OUTEN
U1
R5, 1k
R6, 1k
Copyright 1998
Rev. 1.1 7/98
1
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841, 714-898-8121, F
AX
: 714-893-2570
L
I N
F
I N I T Y
M
I C R O E L E C T R O N I C S
I
N C
.
IMPORTANT:
For the most current data, consult LinFinity's web site:
http://www.linfinity.com.
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PDF描述 |
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| LX1663 | SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1663A | SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1663ACD | SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1663ACN | SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1663CD | SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LX1661CD | 功能描述:IC PWM MONO SWITCHING REG 16SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| LX1661CN | 功能描述:IC PWM MONO SWITCHING REG 16DIP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
| LX1662 | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1662A | 制造商:MICROSEMI 制造商全稱:Microsemi Corporation 功能描述:SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC |
| LX1662ACD | 功能描述:IC PWM PROG SGL 5BIT DAC 14SOIC RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 專用型 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,000 系列:- 應(yīng)用:電源，ICERA E400，E450 輸入電壓:4.1 V ~ 5.5 V 輸出數(shù):10 輸出電壓:可編程 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:42-WFBGA，WLCSP 供應(yīng)商設(shè)備封裝:42-WLP 包裝:帶卷 (TR) |
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