UC2844D


YeeHing #: Y012-UC2844D
Inventory: 2800

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Description

UC2844D Texas Instruments - Yeehing Electronics

Single ended 500KHz current mode PWM controller with 16V/10V UVLO 50% duty cycle, -40C to 85C

Pricing (USD)

Quantity Unit Price
1 — 99 1.235
100 — 249 0.95
250 — 999 0.7
1,000 + 0.35

The above prices are for reference only.

Specifications

Manufacturer Texas Instruments
Product Category Switching Controllers
RoHS Y
Topology Boost, Flyback, Forward
Number of Outputs 1 Output
Switching Frequency 500 kHz
Duty Cycle - Max 50 %
Input Voltage - 300 mV to + 6.3 V
Output Voltage 5 V
Output Current 1 A
Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C
Mounting Style SMD/SMT
Package / Case SOIC-8
Packaging Reel
Isolation Non-Isolated
Operating Temperature Range - 40 C to + 85 C
Product Switching Controllers
Series UC2844
Type Current Mode PWM Controllers
Brand Texas Instruments
Shutdown Shutdown
Fall Time 50 ns
Operating Supply Current 11 mA
Operating Supply Voltage 30 V
Product Type Switching Controllers
Rise Time 50 ns
Factory Pack Quantity 2500
Subcategory PMIC - Power Management ICs
Unit Weight 0.002561 oz

For more information, please refer to datasheet

Documents

UC2844D Datasheet

More Information

The UCx84x series of control integrated circuits provide the features that are necessary to implement off-line or DC-to-DC fixed-frequency current-mode control schemes, with a minimum number of external components. The internally implemented circuits include an undervoltage lockout (UVLO), featuring a start-up current of less than 1 mA, and a precision reference trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a totem-pole output stage that is designed to source or sink high-peak current. The output stage, suitable for driving N-channel MOSFETs, is low when it is in the off state.

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