音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

LT1952IGN Datasheet

  • LT1952IGN

  • Single Switch Synchronous Forward Controller

  • 253.22KB

  • 24頁(yè)

  • LINER

掃碼查看芯片數(shù)據(jù)手冊(cè)

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

LT1952
Single Switch Synchronous
Forward Controller
FEATURES
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
DESCRIPTIO
Synchronous Rectifier Control for High Efficiency
Programmable Volt-Second Clamp
Output Power Levels from 25W to 500W
Low Current Start-Up
True PWM Soft-Start
Low Stress Short Circuit Protection
Precision 100mV Current Limit Threshold
Adjustable Delay for Synchronous Timing
Accurate Shutdown Threshold with Programmable
Hysteresis
Programmable Slope Compensation
Programmable Leading Edge Blanking
Programmable Frequency (100kHz to 500kHz)
Synchronizable to an External Clock up to 1.5 鈥?f
OSC
Internal 1.23V Reference
2.5V External Reference
Current Mode Control
Small 16-Pin SSOP Package
APPLICATIO S
鈻?/div>
鈻?/div>
鈻?/div>
Telecommunications Power Supplies
Industrial and Distributed Power
Isolated and Non-Isolated DC/DC Converters
The LT
廬
1952 is a current mode PWM controller optimized
to control the forward converter topology, using one
primary MOSFET. The LT1952 provides synchronous
rectifier control, resulting in extremely high efficiency. A
programmable Volt-Second clamp provides a safeguard
for transformer reset that prevents saturation. This allows
a single MOSFET on the primary side to reliably run at
greater than 50% duty cycle for high MOSFET, trans-
former and rectifier utilization. The LT1952 includes
soft-start for controlled exit from shutdown, overcurrent
conditions and undervoltage lockout. A precision 100mV
current limit threshold, independent of duty cycle, com-
bines with soft-start to provide hiccup short circuit protec-
tion. Micropower start-up allows the LT1952 to be effi-
ciently started from high input voltages. Programmable
slope compensation and leading edge blanking allow
optimization of loop bandwidth with a wide range of
inductors and MOSFETs. The LT1952 can be programmed
over a 100kHz to 500kHz frequency range and the part can
be synchronized to an external clock. The error amplifier
is a true op amp, allowing a wide range of compensation
networks. The LT1952 is available in a small 16-pin SSOP
package.
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
SUPPLY FROM BIAS
WINDING OF T1
36V to 72V Input, 12V at 20A Semi-Regulated Bus Converter
40k
V
IN
T1
PA0905
L1
PA1494.242
V
OUT
12V
20A
47碌F
16V
X5R
脳2
V
OUT
(V)
16V
V
REF
52.3k
V
IN
LT1952
340k
100k
13k
SD_V
SEC
FB
COMP
SS_MAXDC
OUT
OC
I
SENSE
V
IN
10碌F
Si7450
Si7370
脳2
PH4840
脳2
0.005鈩?/div>
LTC3900
T2
FG
SYNC
220pF
560鈩?/div>
CG
SYNC
GND
0.1碌F
0.1碌F
40k
SOUT
R
OSC
PGND BLANK DELAY
40k
178k
1952 TA01
U
12V Bus Converter
V
OUT
vs V
IN
16
14
12
10
8
36
42
48
54
V
IN
(V)
60
66
72
1952 TA01b
U
U
1952f
1

LT1952IGN相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
    版本
    描述
    廠商
    下載
  • 英文版
    Seoul Semiconductor [BLUE OVAL LAMP LED]
    SEOUL
  • 英文版
    Seoul Semiconductor [GREEN OVAL LAMP LED]
    SEOUL
  • 英文版
    Protected High Side MOSFET Driver
    LINER
  • 英文版
    Protected High Side MOSFET Driver
    Linear
  • 英文版
    36V, 2A, 500kHz Step-Down Switching Regulator
    LINER [Lin...
  • 英文版
    36V, 2A, 500kHz Step-Down Switching Regulator
    LINER [Lin...
  • 英文版
    25V, 3.5A, 2.4MHz Step-Down Switching Regulator
    LINER [Lin...
  • 英文版
    25V, 3.5A, 2.4MHz Step-Down Switching Regulator
    LINER [Lin...
  • 英文版
    Single Resistor Gain Programmable, Precision Instrumentation...
    LINER
  • 英文版
    Single Resistor Gain Programmable, Precision Instrumentation...
    Linear
  • 英文版
    1A, 1.2MHz/2.2MHz, Step-Up DC/DC Converters
    LINER
  • 英文版
    1.2MHz Boost DC/DC Converter
    Linear
  • 英文版
    1.2MHz/2.2MHz Inverting DC/DC Converters in ThinSOT
    LINER
  • 英文版
    1.2MHz/2.2MHz Inverting DC/DC Converters in ThinSOT
    Linear
  • 英文版
    Constant-Current DC/DC LED Driver in ThinSOT
    LINER
  • 英文版
    Optoelectronic - Datasheet Reference
  • 英文版
    600mA, 500kHz Step-Down Switching Regulator in SOT-23
    LINER
  • 英文版
    Micropower Step-Down Switching Regulators in ThinSOT
    LINER
  • 英文版
    34V, Micropower Step-Down Switching Regulator in ThinSOT
    Linear
  • 英文版
    1.2MHz Boost DC/DC Converter in ThinSOT with 2A Switch
    LINER [Lin...

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時(shí)間周一至周五
9:00-17:30

關(guān)注官方微信號(hào)，
第一時(shí)間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫(kù)提出的寶貴意見(jiàn)，您的參與是維庫(kù)提升服務(wù)的動(dòng)力！意見(jiàn)一經(jīng)采納，將有感恩紅包奉上哦！