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參數(shù)資料
| 型號： | L9611C |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | PWM POWER MOS CONTROLLER |
| 中文描述： | 功率MOS的PWM控制器 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 198K |
| 代理商： | L9611C |
Figure 2 :
TheTypical Waveformsfor the Power Limitation Function.
SHORT CIRCUIT CURRENT REGULATION
The maximum load current in the short circuit con-
dition can be chosen by the value of the current
sensingresistor R
S
accordingto :
I
SC
= V
SI
/R
S
Two identical V
S
compatiblecomparators are pro-
vided to realize the short circuit protection.
After reaching the lower threshold voltage (typical
value V
SI
-10 mV), the first comparatorenablesthe
timer and the gateis driven with the fullcontinuous
pump voltage : when the upper threshold voltage
valueis reachedthe second comparatormaintains
the chosenI
SC
drivingtheNMOSgatein continuous
mode.
This function - showed in fig. 3 - speeds up the
switch on phase fora lamp as a load.
BANDGAP VOLTAGEREFERENCE
The circuit provides a referencevoltage whichmay
be usedas controlinputvoltagethrougha resistive
divider.Thisreferenceis protectedagainsttheshort
circuit current.
CHARGE PUMP
The charge pump circuit holds the N-MOS gate
abovethesupplyvoltageduringtheONphase.This
circuitconsistsofanRCastablewhichdrivesacom-
paratorwith a push-pulloutput stage. The external
chargepumpcapacitorC
P
mustbeat least equalto
the NMOS parasiticinput capacitance.
For fastgatevoltagevariationC
P
mustbeincreased
orthebootstrapfunctioncanbeused.Thebootstrap
capacitor should be at least 10 times greater than
the powerMOSparasitic capacitance.
The charge pumpvoltage V
PUMP
canreach to :
V
PUMP
= 2 V
S
- V
BE
- V
CESAT
The circuitis disabledif the supplyvoltageis higher
thanV
SH
.
L9610C - L9611C
6/12
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L9612 | 制造商:Leviton Manufacturing Co 功能描述: |
| L9613 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DATA INTERFACE |
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| L9613B013TR | 功能描述:功率驅(qū)動器IC Med Spd Data Intrfce RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| L9615 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CAN BUS TRANSCEIVER |
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