參數(shù)資料
型號(hào): PJ3842BCS
廠商: Electronic Theatre Controls, Inc.
英文描述: ELECTRONIC VACUUM, 120V RoHS Compliant: Yes
中文描述: 高性能電流模式控制器
文件頁(yè)數(shù): 1/15頁(yè)
文件大?。?/td> 375K
代理商: PJ3842BCS
PJ3842B
High Performance Current Mode Controller
1-15
2002/01.ver.A
T
he PJ3842B series is high performance fixed frequency
current mode controllers. This is specifically designed
for Off-Line and DC-to-DC converter applications offering
the designer a cost effective solution with minimal external
components.This integrated circuits feature a trimmed
oscillator for precise 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.
Also included are protective features consisting of input
and reference undervoltage lockouts each with hysteresis,
cycle-by-cycle current limiting , programmable output
deadtime, and a latch for single pulse metering.
This device is available in 8-pin dual-in-line plastic
packages as well as the 8-pin plastic surface mount (SOP-8).
The SOP-8 package has separate power and ground pins for
the totem pole output stage.
The PJ3842B has UVLO thresholds of 16V (on) and
10V (off), ideally suited for off-line converters.
Trimmed Oscillator Discharge Current for Precise Duty
Cycle Control
Current Mode Operation to 500KHz
Automatic Feed Forward Compensation
Latching PWM for Cycle-By-Cycle Current Limiting
Internally Trimmed Reference with Undervoltage
Lockout
High Current Totem Pole Output
Input Undervoltage Lockout with Hystersis
Low Start-Up and Operating Current
Device
Operating Temperature
-20
TO +85
Package
DIP-8
SOP-8
PJ3842BCD
PJ3842BCS
The document contains information on a new product.Specifications and information herein are subject to change without notice.
DIP-8 SOP-8
SIMPLIFIED BLOCK DIAGRAM
FEATURES
Pin: 1. Compensation
5
. Gnd
2. Voltage Feedback 6. Output
3. Current Sense 7. Vcc
4. R
T
/C
T
8. Vref
ORDERING INFORMATION
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