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): 13/15頁(yè)
文件大?。?/td> 375K
代理商: PJ3842BCS
PJ3842B
High Performance Current Mode Controller
13-15
2002/01.ver.A
PIN F UNCT ION DESCR IPT ION
Pin No.
8-Pin
1
2
3
4
5
6
7
8
F unction
Compensation
Voltage Feedback
Current Sense
R
T
/C
T
Description
Gnd
Output
Vcc
Vref
This pin is the Error Amplifier output and is made available for loop
compensation
This is the inverting input of the Error Amplifier. It is normally
connected to the switching power supply output through a resistor
divider.
A voltage proportional to inductor current is connected to this input.
The PWM uses this information to terminate the output switch
conduction.
The Oscillator Frequency and maximum Output duty are
programmed by connecting resistor R
T
to Vref and capacitor C
T
to
ground operation to 500kHz is possible.
This pin is the combined control circuitry and power ground (8-pin
package only).
This output directly drives the gate of a power MOSFET.Peak current
up to 1.0A are soured and sunk by this pin.
This pin is the positive supply of the control IC.
This pin is the reference output . It provides charging current for
capacitor C
T
through resistor R
T
.
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