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UC3842A
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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:10+
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Encapsulation:14SOIC, 16SOIC, 8PDIP, 8SOIC
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Stock Status:There is stock
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Stock Quantity:500000
- 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
| |
|
|
UC3842A |
| topology |
|
|
Boost, buck, reverse, forward |
| Control method |
|
|
Current mode |
| Duty cycle (max.) (%) |
|
|
100 |
| Frequency (max) (khertz) |
|
|
450 |
| On/Off of Undervoltage Lockout Threshold (5) |
|
|
16/10 |
| Pins/Packets |
|
|
14SOIC，16SOIC，8PDIP，8SOIC |
| (#) Regulated output |
|
|
One |
| Operating temperature range(°C) |
|
|
0 to 70 |
andUC3842ARelated ICs are:
| Model |
Manufacturers |
lot number |
encapsulation |
illustrate |
| UC3842AN2 |
ON |
03+ |
PDIP |
Current mode PWM controller |
| 3842AS |
IT |
03+ |
8S0P |
Brand new original |
| AMC3842AM |
AMC |
99+ |
DIP |
Brand new original |
| UC3842AD8 |
TI |
02+ |
SOP-8P |
Current mode PWM controller |
| za3842am |
AZ |
10+ |
SOP8 |
handbill |
| UC3842ADW |
TI |
01+ |
N／A |
Current mode PWM controller |
| 3842AN |
N／A |
04+ |
DIP8 |
Brand new original |
| AZ3842AP |
AAC |
03+ |
DIP-8 |
Brand new original |
| UC3842AM |
MSC |
03+ |
DIP/8 |
Brand new original |
| KA3842A |
SAMSUNG |
06+ |
DIP-8 |
Agent products - brand new original |
| UC3842A |
TI |
10+ |
14SOIC, 16SOIC, 8PDIP, 8SOIC |
Current mode PWM controller |
| UC3842AD |
UNITRODE |
00+ |
SOP |
|
| UC3842AN |
MOT |
07+/08+ |
DIP8 |
|
| UC3842ADM-TR |
MTK |
06+ |
BGA |
|
| UC3842AN |
TI/BB |
06+ |
SOP16 |
|
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illustrate |
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10+ |
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