MIC38HC43
The MIC38HC4x family are fixed frequency current-mode PWM controllers with 1A drive current capability. Micrel's BiCMOS devices are pin-compatible with 384x bipolar devices. Their high output drive, with fast rise and fall times, combined with low startup current make it an ideal PWM controller where high efficiency is required. Undervoltage lockout circuitry allows the '42 and '44 versions to start up at 14.5V and operate down to 9V, and the '43 and '45 versions start at 8.4V with operation down to 7.6V. All versions operate up to 20V. When compared to bipolar UC384x devices operating from a 15V supply, start-up current has been reduced to 50µA typical and operating current has been reduced to 4.0 mA typical. Decreased output rise and fall times drive larger MOSFETs, and rail-to-rail output capability increases efficiency, especially at lower supply voltages. The MIC38HC4x also features a trimmed oscillator discharge current and bandgap reference. MIC38HC4x-1 is available in 14-pin plastic DIP and SOIC packages. 8-pin devices feature small size, while 14-pin devices separate the analog and power connections for improved performance and power dissipation.
产品特性
| 技术参数
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文档资料
| MIC38HC42/3/4/5 -BiCMOS 1A Current-Mode PWM Controllers | Data Sheets | 11/09/2015 | 80KB |
订购型号
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|---|---|---|---|---|---|---|---|---|
| MIC38HC43YM | 8 | SOIC | -40C to +85C | TUBE | 2.51 | 2.09 | 1.90 | 1.58 | 1.46 |
| MIC38HC43YM-TR | 8 | SOIC | -40C to +85C | T/R | 2.51 | 2.09 | 1.90 | 1.58 | 1.46 |
器件无铅环保信息
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|---|---|---|---|---|---|---|---|---|
| MIC38HC43-1YN | 0.953300 | 1.833333 | 14 | PDIP | .300in | Matte Tin | e3 |  |  |
| MIC38HC43YN | 0.486700 | 0.900000 | 8 | PDIP | .300in | Matte Tin | e3 | | |
| MIC38HC43-1YM | 0.143200 | 0.280702 | 14 | SOIC | .150In(3.90mm) | Matte Tin | e3 | | |
| MIC38HC43-1YM-TR | 0.143200 | 0.325000 | 14 | SOIC | .150In(3.90mm) | Matte Tin | e3 | | |
| MIC38HC43YM | 0.075000 | 0.163265 | 8 | SOIC | 3.90mm(.150in) | NiPdAu | e4 | | |
| MIC38HC43YM-TR | 0.075000 | 0.250000 | 8 | SOIC | 3.90mm(.150in) | NiPdAu | e4 | | |
