UC3844AD

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> Semiconductors - ICs

> Power Management

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Details for Texas Instruments

UC3844AD

Current Mode PWM Controller
Texas Instruments UC3844AD
UC3844AD datasheetDatasheet
PCB Footprint
Buy Directly from Texas Instruments (5968 in Stock)
$0.4800 per unit
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Series Information for UC3844AD - Texas Instruments

Features

  • feature
    Automatic Feedforward Compensation
  • feature
    Double Pulse Suppression
  • feature
    Enhanced Load Response Characteristics
  • feature
    High-Current Totem Pole Output
  • feature
    Internally-Trimmed Bandgap Reference
  • feature
    Low Start-Up Current (< 0.5 mA)
  • feature
    Optimized for Off-Line and DC-DC Converters
  • feature
    Pulse-by-Pulse Current Limiting
  • feature
    Trimmed Oscillator Discharge Current
  • feature
    Undervoltage Lockout With Hysteresis
  • feature
    Up to 500-kHz Operation
UC3844AD image
ROHS Compliant
UC3844AD datasheetDatasheet
UC3844AD pcb footprintPCB Footprint

Description

IC CURRENT MODE PWM CTRL 30V SOIC-14
The UCx84xA family of control ICs is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control currentmode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.

Specifications

Input Voltage:
25V
Output Voltage:
15V
Output Current:
200mA
Supply Voltage Min:
12V
Supply Voltage Max:
25V
Controller IC Case Style:
SOIC
No. of Pins:
14Pins
Frequency:
500kHz
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Base Number:
3844
Controller Type:
PWM
Input Current:
11mA
Operating Temperature Range:
0°C to +70°C
Output Current Max:
1A
Output Energy per Cycle:
5µJ
Output Type:
Totem Pole
Power Dissipation Pd:
1W
Supply Voltage Range:
12V to 25V
Termination Type:
Surface Mount Device

Alternate Descriptions

Avnet America

Current Mode PWM Controller 1A 14-Pin SOIC Tube

Avnet America product

Avnet Europe

Current Mode PWM Controller 1A 14-Pin SOIC Tube

Avnet Europe product

Texas Instruments

Current Mode PWM Controller

Texas Instruments product

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