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

SC1405BTS.TR Datasheet

  • SC1405BTS.TR

  • High Speed Synchronous Power MOSFET Smart Driver

  • 261.92KB

  • 13頁

  • SEMTECH   SEMTECH

掃碼查看芯片數(shù)據手冊

上傳產品規(guī)格書

PDF預覽

High Speed Synchronous Power
MOSFET Smart Driver
POWER MANAGEMENT
Description
The SC1405B is a Dual-MOSFET Driver with an internal
Overlap Protection Circuit to prevent shoot-through. Each
driver is capable of driving a 3000pF load in 15ns rise/
fall time and has ULTRA-LOW propagation delay from in-
put transition to the gate of the power FET鈥檚. Adaptive
Overlap Protection circuit ensures that the synchronous
FET does not turn on until the top FET source has reached
a voltage low enough to prevent shoot-through. The de-
lay between the bottom gate going low to the top gate
transitioning high is externally programmable via a ca-
pacitor to minimize dead time. The bottom FET may be
disabled at light loads by keeping S_MOD low to trigger
asynchronous operation, thus saving the bottom FET鈥檚
gate drive current and inductor ripple current. An inter-
nal voltage reference allows threshold adjustment for
an Output Over-Voltage protection circuitry, independent
of the PWM controller.
Under-Voltage-Lock-Out circuit is included to guarantee
that both driver outputs are off when Vcc is less than or
equal to 4.4V (typ) at supply ramp up (4.35V at supply
ramp down). A CMOS output provides status indication
of the 5V supply. A low enable input places the IC in stand-
by mode, reducing supply current to less than 10碌A.
SC1405B is offered in a high pitch (.025鈥?lead spacing)
TSSOP package.
SC1405B
Features
Fast rise and fall times (15ns with 3000pf load)
14ns max. Propagation delay (BG going low)
Adaptive and programmable shoot-through
protection
Wide input voltage range (4.5-25V)
Power saving asynchronous mode control
Output overvoltage protection/overtemp shutdown
Under-Voltage lock-out and power ready signal
Less than 10碌A stand-by current (EN=low)
Improved drive version of SC1405TS
High frequency (to 1.2MHz) operation allows use of
small inductors and low cost capacitors in place of
electrolytics
Applications
High Density/Fast transient microprocessor power
supplies
Motor Drives/Class-D amps
High efficiency portable computers
Typical Application Circuit
INPUT POWER, 5-20V
+
Vcc
10uF,6.3V
+
.1uF
8
3
<<
>>
P_READY
PWM IN
(20KHz-1MHz)
47pF
7
2
4
6
1
5
14
13
12
SC1405
9
11
10
2.2
2.2
MTB75N03
75A,30V
5817
.22uF
1.7V@30A
+
+
+
+
+
MTB75N03
75A,30V
<<
DSPS_DR
Over-Voltage Sense
<<< Output Feedback to PWM
Controller
Revision: January 13, 2004
1
www.semtech.com

SC1405BTS.TR相關型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

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：
賣家服務：
技術客服：

0571-85317607

網站技術支持

13606545031

客服在線時間周一至周五
9:00-17:30

關注官方微信號，
第一時間獲取資訊。

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的動力！意見一經采納，將有感恩紅包奉上哦！