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PJ3842BCD Datasheet

  • PJ3842BCD

  • High Performance Current Mode Controller

  • 15頁

  • ETC

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PJ3842B
High Performance Current Mode Controller
T
he PJ3842B series is high performance fixed frequency
current mode controllers. This is specifi cally designed
Also included are protective features consisting of input
and reference undervoltage lockouts each with hysteresis,
cycle-by-cy cle current limiting , programmable output
deadtime, and a latch for single pulse metering.
This device is available in 8-pin dual-in-line plastic
packag es as well as the 8 -pin plastic surface mount (SOP-8).
The SOP-8 package has separate power and ground pins fo r
the totem pole output stage.
The PJ3842B has UVLO thresholds o f 16V (on) and
10V (off), ideally suited for o ff-line conv erters.
fo r Off-Line and DC-to-DC convert er applications offering
the designer a cost effective solution with minimal external
components.This integrated circuits
feature a trimmed
oscillator for precis e duty cycle control, a temperature
compensated reference, high gain error amplifier, current
sensing comparator,and a high current totem pole output
ideally suited for driving a power MOSFET.
FEATURES
鈥?/div>
Trimmed Oscillator Discharge Current for Precise Duty
Cycle Control
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Current Mode Operation to 500KHz
Automatic Feed Forward Compensation
Latching PWM for Cycle-By-Cycl e Current Limiting
Internally
Lockout
鈥?/div>
鈥?/div>
鈥?/div>
High Current Totem Pole Output
Input Undervoltage Lockout with Hystersis
Low Start-Up and Operating Current
Trimmed
Reference
with
Undervoltag e
DIP-8
SOP-8
P in: 1. Compensation
2. Voltage Feedback
3. Current Sense
4. R
T
/C
T
5
. Gnd
6. Output
7. Vcc
8. Vref
ORDERING INFORMATION
Device
PJ3842BCD
PJ3842BCS
Operating Temperature
-20鈩?TO +85鈩?/div>
Package
DIP-8
SOP-8
SIMPLIFIED BLOCK DIAGRAM
The document contains information on a new product.Specifications and information herein are subject to change without notice.
1-15
2002/01.ver.A

PJ3842BCD相關(guān)型號(hào)PDF文件下載

  • 型號(hào)
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  • 英文版
    Promax-Johnton ...
  • 英文版
    High Performance Current Mode Controller
    ETC
  • 英文版
    High Performance Current Mode Controller
    ETC [ETC]
  • 英文版
    High Performance Current Mode Controller
    ETC
  • 英文版
    High Performance Current Mode Controller
    ETC [ETC]
  • 英文版
    High Performance Current Mode Controller
    ETC
  • 英文版
    High Performance Current Mode Controller
    ETC [ETC]
  • 英文版
    High Performance Current Mode Controller
    ETC
  • 英文版
    High Performance Current Mode Controller
    ETC [ETC]

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