Product Summary

The UC3844BD1R2G is a High Performance Current Mode Controller.

Parametrics

UC3844BD1R2G Parametrics:

Packaging   Tape & Reel (TR)  
PWM Type Current Mode
Number of Outputs 1
Frequency - Max 275kHz
Duty Cycle 50%
Voltage - Supply 10 V ~ 30 V
Buck No
Boost Yes
Flyback Yes
Inverting Yes
Doubler No
Divider No
Cuk No
Isolated Yes
Operating Temperature 0°C ~ 70°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Dynamic Catalog Current Mode
Other Names UC3844BD1R2G-ND
UC3844BD1R2GOSTR

Features

UC3844BD1R2G Features:

? Trimmed Oscillator for Precise Frequency Control
? Oscillator Frequency Guaranteed at 250 kHz
? Current Mode Operation to 500 kHz Output Switching Frequency
? Output Deadtime Adjustable from 50% to 70%
? Automatic Feed Forward Compensation
? Latching PWM for Cycle?By?Cycle Current Limiting
? Internally Trimmed Reference with Undervoltage Lockout
? High Current Totem Pole Output
? Undervoltage Lockout with Hysteresis
? Low Startup and Operating Current
? These Devices are Pb?Free and are RoHS Compliant

Diagrams

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
UC3844BD1R2G
UC3844BD1R2G

ON Semiconductor

Current Mode PWM Controllers 52kHz 1A Current PWM w/48% Duty Cycle Max

Data Sheet

25-100: $0.23
100-500: $0.20
0-1: $0.37
1-25: $0.32
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
UC3803X
UC3803X

Other


Data Sheet

Negotiable 
UC3823
UC3823

Other


Data Sheet

Negotiable 
UC3823A
UC3823A

Other


Data Sheet

Negotiable 
UC3823ADW
UC3823ADW

Texas Instruments

Current Mode PWM Controllers High Speed PWM Controller

Data Sheet

0-1: $8.53
1-25: $8.15
25-100: $6.13
100-250: $6.00
UC3823ADWG4
UC3823ADWG4

Texas Instruments

Current Mode PWM Controllers High Speed PWM Controller

Data Sheet

0-1: $8.53
1-25: $7.50
25-100: $6.13
100-250: $6.00
UC3823ADWTR
UC3823ADWTR

Texas Instruments

Current Mode PWM Controllers High Speed PWM Controller

Data Sheet

0-1539: $4.76
1539-2000: $4.61