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

STSR2CD-TR Datasheet

  • STSR2CD-TR

  • FORWARD SYNCHRONOUS RECTIFIERS SMART DRIVER

  • 12頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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

STSR2
FORWARD SYNCHRONOUS
RECTIFIERS SMART DRIVER
s
s
s
s
s
s
SUPPLY VOLTAGE RANGE: 4.5V TO 5.5V
TYPICAL PEAK OUTPUT CURRENT:
SOURCE -2A, SINK 3.5A
OPERATING FREQUENCY: 20 TO 750 KHZ
SMART TURN-OFF ANTICIPATION TIMING
OPERATION INDEPENDENT FROM THE
FORWARD MAGNETIC RESET TECHNIQUE
POSSIBILITY TO OPERATE IN
DISCONTINUOUS MODE
SO-8
DESCRIPTION
STSR2 Smart Driver IC provides two
complementary high current outputs to drive
Power Mosfets. The IC is dedicated to properly
drive secondary Synchronous Rectifiers in
medium power, low output voltage, high efficiency
Forward Converters. From a synchronizing clock
input, STSR2 generates two driving signals with
the self-setting of dead time between
complementary pulses. The IC operation prevents
secondary
side
shoot-through
conditions
providing proper timing at the outputs turn-off
transition. This smart function operates through a
fast cycle-after-cycle control logic mechanism
based on an internal high frequency oscillator,
synchronized by the clock signal. A fixed
anticipation in turning-off the OUT
GATE1
with
respect to the clock signal transition is provided,
SCHEMATIC DIAGRAM
Vcc
2
while the anticipation in turning off the OUT
GATE2
can be set through external components. The
adopted transitions revelation mechanism makes
circuit operation independent by the forward
magnetic reset technique used, avoiding most of
the common problems inherent in self-driven
synchronous rectifiers. A special Inhibit function
allows the shut-off of OUT
GATE2
. This feature
makes discontinuous conduction mode possible
and prevents the freewheeling mosfet from
sinking current from the output.
STSR2 automatically turns off the outputs when
duty-cycle is lower than 13%, while STSR2M
works even at very low duty-cycle values.
+
BIAS
UVLO
5.7V
CK
4
PEAK
DETECTOR
ANTICIPATION
SET
3
SETANT2
+
+
HIGH
FREQUENCY
OSCILLATOR
1
OUTGate1
DIGITAL
CONTROL
OUTPUT
BUFFERS
7
OUTGate2
INHIBIT
5
-
+
25mV
6
8
SGLGND
PWRGND
June 2003
1/12

STSR2CD-TR 產(chǎn)品屬性

  • STMicroelectronics

  • 開關(guān)變換器、穩(wěn)壓器與控制器

  • Reel

  • 2500

STSR2CD-TR相關(guān)型號(hào)PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號(hào)推薦

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
返回頂部

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動(dòng)力！意見一經(jīng)采納，將有感恩紅包奉上哦！