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UC2843A
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Category:ACDC- and -DCDC-power supply
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Product Name:Current mode PWM controller
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Manufacturers:TI
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Production Batch Number:08+
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Encapsulation:14SOIC, 20PLCC, 8PDIP, 8SOIC
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Stock Status:There is stock
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Stock Quantity:6758
- Minimum order quantity: 1
- Details:
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The control IC UC1842A/3A/4A/5A family is a pin-compatible family of improved versions of the UC3842/3/4/5-pin. Providing the necessary functions to control current mode switching power supplies, this family has the following improved features. The start-up current is guaranteed to be less than 0.5 mA. The oscillator discharge is trimmed to 8.3 milliamperes. In undervoltage lockout, the output stage can absorb a ratio of 1.2V to 5VVCC's in the past is at least a decade of milliamperes.
characteristic
- Optimize offline and DC-DC converters
- Low start-up current" (
- Side vibration discharge current
- Automatic feed-forward compensation
- The pulse is limited by the pulse current
- Enhanced load response characteristics
- Undervoltage lockout
- Double pulse suppression
- The totem pole outputs a large current
- Internal fine-tuning bandgap reference
- 500kHz operation
- Low voltage reverse osmosis error amplifier
parameter
| |
|
UC2843A |
|
| topology |
|
Boost, reverse, forward |
|
| Control method |
|
Current mode |
|
| Duty cycle (max.) (%) |
|
100 |
|
| Frequency (max) (khertz) |
|
450 |
|
| On/Off of Undervoltage Lockout Threshold (5) |
|
8.4/7.6 |
|
| Pins/Packets |
|
14SOIC ، 20PLCC ، 8PDIP ، 8SOIC |
|
| (#) Regulated output |
|
One |
|
| Operating temperature range(°C) |
|
-40 to 85 |
|
andUC2843ARelated ICs are:
| Model |
Manufacturers |
lot number |
encapsulation |
illustrate |
| UC2843AD8G4 |
TI |
10+ |
N/A |
全新原装进口，香港现货 |
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TI |
10+ |
SOP |
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| CS2843AL |
ON |
02+ |
DIP-8P |
Brand new original in stock |
| UC2843AQ |
TI |
08+ |
14SOIC, 8SOIC |
Automotive current mode PWM controller |
| UC2843A-Q1 |
TI |
10+ |
8SOIC |
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| UC2843A |
TI |
08+ |
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Current mode PWM controller |
| UC2843AD1013TR |
ST |
00+ |
SOP-8 |
|
| UC2843ADG4 |
TI |
09+ |
SOP8 |
|
| UC2843AN |
TI/BB |
08+ |
SOP14 |
|
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