- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄361500 > TK75050D (TOKO INC) SMART MOSFET DRIVER PDF資料下載
參數(shù)資料
| 型號(hào)： | TK75050D |
| 廠商： | TOKO INC |
| 元件分類： | MOSFETs |
| 英文描述： | SMART MOSFET DRIVER |
| 中文描述： | 1.5 A BUF OR INV BASED MOSFET DRIVER, PDIP8 |
| 封裝： | DIP-8 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 131K |
| 代理商： | TK75050D |
Page 8
January 1999 TOKO, Inc.
TK75050
APPLICATION INFORMATION
START-UP
Figure 1 shows the application of the TK75050 smart
MOSFET driver in a self-biased power supply.
FIGURE 1: TK75050 IN A SELF-BIASED POWER
SUPPLY
Figure 2 shows the typical waveforms during start-up.
FIGURE 2: WAVEFORMS DURING START-UP
CYCLE-BY-CYCLE CURRENT LIMIT
Figure 3(a) shows how to use the TK75050 as a high-
speed cycle-by-cycle current limiter. Figure 3(b) shows the
waveforms. Note that the preferred connection for the
bottom terminal of the filter capacitor C
F
is to the PGND/CS
pin and not to the GND pin. By connecting C
F
to the PGND/
CS pin, the capacitive feedthrough of the drive signal that
would appear as a leading-edge spike in the current-sense
waveform is completely eliminated. This technique, called
"Gate Charge Recovery" is patented by Toko, Inc., but is
granted for use with the TK75050. For a detailed description
and application information of the Gate Charge Recovery
technique, see the Toko application note "Application
Considerations for a Smart Five-Pin MOSFET/IGBT Driver
with High-Speed Current-Limit Capability."
(a) (b)
FIGURE 3: CYCLE-BY-CYCLE CURRENT LIMIT WITH
THE TK75050
(a) SCHEMATIC (b) WAVEFORMS
MAIN OVERLOAD PROTECTION IN VOLTAGE-
MODE-CONTROLLED CONVERTERS
Figure 4 shows the TK75050 in a voltage-mode-controlled
flyback converter. In this application example, the IC
provides the main overload protection.
FIGURE 4: TK75050 IN A VOLTAGE-MODE-
CONTROLLED CONVERTER
+
+
CONPWM
VCC
VIN
TK75050
+
VOLTPWM
CONTROLLER
VIN
FEEDBACK
+12 V
VIN (t) & VOUT (t)
VIN (t)
VUVLO (t)
DRIVER “WAKES UP”
CONDITION
CUVLO
BOOTSTBEGINS
PWM ENABLE
UVLO LOWER THRESHOLD
UVLO UPPER THRESHOLD
VCC (t)
VAUX
RF
CF
VCC
OUT
IN
GND
PGND/CS
VCS (t)
+
-
RCS
0.95 V
CF IS CONNECTED TO GND
0.95 V
CF IS CONNECTED TO PGND/CS
IN
OUT
VCS(t)
VCS(t)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TK75050DITL | SMART MOSFET DRIVER |
| TK83361M | NARROW BAND FM IF IC |
| TK83361MTL | NARROW BAND FM IF IC |
| TK83854MIMG | ENCHANCED LIN INTERFACE |
| TK83854MITL | HIGH POWER FACTOR PREREGULATOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TK75050DITL | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:SMART MOSFET DRIVER |
| TK75050DITL/75050 | 制造商:TOKO 制造商全稱:TOKO, Inc 功能描述:SMART MOSFET DRIVER |
| TK7575 | 功能描述:SAFETY TAPE KIT-INDUST VERSION RoHS:是 類別:套件 >> 帶 系列:- 視頻文件:3M VHB adhesive demonstration - Another Geek Moment 標(biāo)準(zhǔn)包裝:1 系列:- 膠帶類型:家用 包含軟帶:分類 數(shù)量:鉤（4），卷（4），片（40），帶（113），管件（1） 包裝:帶裝箱指南的塑料箱 工具箱內(nèi)容:(1) 3M9925-ND - TAPE DAMPING FOIL 1X2"(1) 3M9778-ND - TAPE ALUMINUM FOIL 2" X 5YD |
| TK75A06K3 | 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:Switching Voltage Regulators |
| TK7600 | 功能描述:沖壓機(jī)與沖模 FRM 4 DIE CSE CT5 RoHS:否 制造商:Souriau 大小: 產(chǎn)品:Dies 類型:Crimping 描述/功能: |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。