參數(shù)資料
型號(hào)： SC1405B
廠商： Semtech Corporation
英文描述： HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER
中文描述： 高速同步功率MOSFET的智能驅(qū)動(dòng)
文件頁(yè)數(shù)： 1/13頁(yè)
文件大?。?/td> 261K
代理商： SC1405B
POWER MANAGEMENT
Description
1
www.semtech.com
SC1405B
High Speed Synchronous Power
MOSFET Smart Driver
Features
Applications
Revision: January 13, 2004
Typical Application Circuit
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’s. 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’s
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 10μA.
SC1405B is offered in a high pitch (.025” lead spacing)
TSSOP package.
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 10μA 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
High Density/Fast transient microprocessor power
supplies
Motor Drives/Class-D amps
High efficiency portable computers
+
(20KHz-1MHz)
2.2
+
10uF,6.3V
MTB75N03
75A,30V
.1uF
SC1405
13
4
6
3
2
1
14
5
10
7
9
11
12
8
5817
MTB75N03
75A,30V
1.7V@30A
INPUT POWER, 5-20V
+
>>
<<< Output Feedback to PWM
Controller
+
+
Over-Voltage Sense
47pF
.22uF
Vcc
+
<<
2.2
PWM IN
<<
P_READY
+
DSPS_DR
相關(guān)PDF資料
PDF描述
SC1405BTS.TR High Speed Synchronous Power MOSFET Smart Driver
SC1405D Differential Input, Dual, Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC, 16-TSSOP, Auto Temp
SC1405DITSTRT Differential Input, Dual, Simultaneous Sampling, 4.25 MSPS, 14-Bit, SAR ADC, 16-TSSOP, Auto Temp
SC1405 HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER
SC1405TS.TR HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SC1405BTS.TR 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:High Speed Synchronous Power MOSFET Smart Driver
SC1405CTS.TR 制造商:Semtech Corporation 功能描述:
SC1405D 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:High Speed Synchronous Power MOSFET Smart Driver
SC1405DITSTRT 功能描述:IC DRIVER MOSF SYNC DUAL TSSOP14 RoHS:是 類別:集成電路 (IC) >> PMIC - MOSFET，電橋驅(qū)動(dòng)器 - 外部開(kāi)關(guān) 系列:- 標(biāo)準(zhǔn)包裝:95 系列:- 配置:高端和低端，獨(dú)立 輸入類型:非反相 延遲時(shí)間:160ns 電流 - 峰:290mA 配置數(shù):1 輸出數(shù):2 高端電壓 - 最大（自引導(dǎo)啟動(dòng)）:600V 電源電壓:10 V ~ 20 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:8-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:8-SOIC 包裝:管件 產(chǎn)品目錄頁(yè)面:1381 (CN2011-ZH PDF)
SC1405TS.TR 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:HIGH SPEED SYNCHRONOUS POWER MOSFET SMART DRIVER
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