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求PWM芯片的型號

請問有沒有其他型號的PWM芯片象TL494(KA7500)功能那樣
1、能夠輸出兩路PWM,相位相差180度,占空比0%~47%可調,做半橋開關電源,
2、控制1只引腳,能輸出同相 1路  占空比0%~100%可調,

不知有沒其他的芯片,具備以上兩點?
SG3525不知可不可以?
請大俠們幫幫忙
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ju808
LV.4
2
2007-09-21 08:34
SG6105有以上芯片的功能還集成了393.有需要可聯系我13246714528汪   e-mail:steven@junyi-ic.com
0
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twt3244
LV.2
3
2007-09-21 10:30
UC3846
電流型PWM,性能不錯
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kennywen
LV.1
4
2007-09-21 10:42
崇貿科技的SG6105D不但可以滿足你的需求,還集成了339和2顆431.本公司為崇貿公司的第一大代理,保證單價和貨源,有需求請與我聯系.0755-26711655-625,13902958349文先生,E-mail:kennywen@sac.com.hk
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2007-09-21 10:51
@twt3244
UC3846電流型PWM,性能不錯
UC3846有以上功能嗎?
請發SG6105  PDF到我郵箱
SG6105價格怎樣?
e-mail:daijunliang@163.com
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madboy21
LV.8
6
2007-09-21 11:34
給你推薦一款實用IC,不過不能同時實現你的兩個要求,但你可以采用兩片來實現.
(先聲明我不是賣IC的)
這款IC是Tiny25
主要特性:8引腳,四個PWM輸出,可編程死區時間
可編程PWM頻率,輸出占空比可0-100%

可用于半橋,全橋,及電機控制電路
0
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2007-09-21 11:42
@madboy21
給你推薦一款實用IC,不過不能同時實現你的兩個要求,但你可以采用兩片來實現.(先聲明我不是賣IC的)這款IC是Tiny25主要特性:8引腳,四個PWM輸出,可編程死區時間可編程PWM頻率,輸出占空比可0-100%可用于半橋,全橋,及電機控制電路
Tiny25 ,怎么找不到他的datasheet  啊?
你有TINY215的PDF 資料嗎?
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madboy21
LV.8
8
2007-09-21 11:52
@power20071983
Tiny25,怎么找不到他的datasheet  啊?你有TINY215的PDF資料嗎?
資料2.4M,我這網絡不穩定,傳了兩次不行
請看下面簡介
Features
? High Performance, Low Power AVR? 8-Bit Microcontroller
? Advanced RISC Architecture
– 120 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers
– Fully Static Operation
? Non-volatile Program and Data Memories
– 2/4/8K Byte of In-System Programmable Program Memory Flash (ATtiny25/45/85)
Endurance: 10,000 Write/Erase Cycles
– 128/256/512 Bytes In-System Programmable EEPROM (ATtiny25/45/85)
Endurance: 100,000 Write/Erase Cycles
– 128/256/512 Bytes Internal SRAM (ATtiny25/45/85)
– Programming Lock for Self-Programming Flash Program and EEPROM Data
Security
? Peripheral Features
– 8-bit Timer/Counter with Prescaler and Two PWM Channels
– 8-bit High Speed Timer/Counter with Separate Prescaler
2 High Frequency PWM Outputs with Separate Output Compare Registers
Programmable Dead Time Generator
– USI – Universal Serial Interface with Start Condition Detector
– 10-bit ADC
4 Single Ended Channels
2 Differential ADC Channel Pairs with Programmable Gain (1x, 20x)
Temperature Measurement
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
? Special Microcontroller Features
– debugWIRE On-chip Debug System
– In-System Programmable via SPI Port
– External and Internal Interrupt Sources
– Low Power Idle, ADC Noise Reduction, and Power-down Modes
– Enhanced Power-on Reset Circuit
– Programmable Brown-out Detection Circuit
– Internal Calibrated Oscillator
? I/O and Packages
– Six Programmable I/O Lines
– 8-pin PDIP, 8-pin SOIC and 20-pad QFN/MLF
? Operating Voltage
– 1.8 - 5.5V for ATtiny25/45/85V
– 2.7 - 5.5V for ATtiny25/45/85
? Speed Grade
– ATtiny25/45/85V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V
– ATtiny25/45/85: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V
? Industrial Temperature Range
? Low Power Consumption
– Active Mode:
1 MHz, 1.8V: 300 μA
– Power-down Mode:
0.1μA at 1.8V
0
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2007-09-21 12:34
@madboy21
資料2.4M,我這網絡不穩定,傳了兩次不行請看下面簡介Features?HighPerformance,LowPowerAVR?8-BitMicrocontroller?AdvancedRISCArchitecture–120PowerfulInstructions–MostSingleClockCycleExecution–32x8GeneralPurposeWorkingRegisters–FullyStaticOperation?Non-volatileProgramandDataMemories–2/4/8KByteofIn-SystemProgrammableProgramMemoryFlash(ATtiny25/45/85)Endurance:10,000Write/EraseCycles–128/256/512BytesIn-SystemProgrammableEEPROM(ATtiny25/45/85)Endurance:100,000Write/EraseCycles–128/256/512BytesInternalSRAM(ATtiny25/45/85)–ProgrammingLockforSelf-ProgrammingFlashProgramandEEPROMDataSecurity?PeripheralFeatures–8-bitTimer/CounterwithPrescalerandTwoPWMChannels–8-bitHighSpeedTimer/CounterwithSeparatePrescaler2HighFrequencyPWMOutputswithSeparateOutputCompareRegistersProgrammableDeadTimeGenerator–USI–UniversalSerialInterfacewithStartConditionDetector–10-bitADC4SingleEndedChannels2DifferentialADCChannelPairswithProgrammableGain(1x,20x)TemperatureMeasurement–ProgrammableWatchdogTimerwithSeparateOn-chipOscillator–On-chipAnalogComparator?SpecialMicrocontrollerFeatures–debugWIREOn-chipDebugSystem–In-SystemProgrammableviaSPIPort–ExternalandInternalInterruptSources–LowPowerIdle,ADCNoiseReduction,andPower-downModes–EnhancedPower-onResetCircuit–ProgrammableBrown-outDetectionCircuit–InternalCalibratedOscillator?I/OandPackages–SixProgrammableI/OLines–8-pinPDIP,8-pinSOICand20-padQFN/MLF?OperatingVoltage–1.8-5.5VforATtiny25/45/85V–2.7-5.5VforATtiny25/45/85?SpeedGrade–ATtiny25/45/85V:0-4MHz@1.8-5.5V,0-10MHz@2.7-5.5V–ATtiny25/45/85:0-10MHz@2.7-5.5V,0-20MHz@4.5-5.5V?IndustrialTemperatureRange?LowPowerConsumption–ActiveMode:1MHz,1.8V:300μA–Power-downMode:0.1μAat1.8V
把他的PDF發到我的郵箱好嗎?
e-mail:daijunliang@163.com
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twt3244
LV.2
10
2007-11-18 13:20
uc3846呀
二路相位可在0%~50%間可調
若要0%~100%間可調,則兩路輸出并聯使用則可
當然還要在扣除死區
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