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參數(shù)資料
| 型號： | TS3843BCS |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | High Performance Current Mode Controller |
| 中文描述： | 高性能電流模式控制器 |
| 文件頁數(shù)： | 17/20頁 |
| 文件大小： | 521K |
| 代理商： | TS3843BCS |
Pin Function Description
PIN NO.
FUNCTION
DESCRIPTION
1
Compensation
This pin is the Error Amplifier output and is made available
for loop compensation
2
Voltage Feedback
This is the inverting input of the Error Amplifier. It is normally
connected to the switching power supply output through a
resistor divider.
3
Current Sense
A voltage proportional to inductor current is connected to this
input. The PWM uses this information to terminate the output
switch conduction.
4
R
T
/C
T
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
5
Gnd
This pin is the combined control circuitry and power ground
(8-pin package only).
6
Output
This output directly drives the gate of a power MOSFET.
Peak current up to 1.0A are sourced and sunk by this pin.
7
Vcc
This pin is the positive supply of the control IC.
8
Vref
This pin is the reference output. It provides charging current
for capacitor C
T
through resistor R
T
.
5
8
4
1
1
4
5
8
DIP-8
SOP-8
PIN : 1. Compensation
2. Voltage feedback
3. Current Sense
4. R
T
/ C
T
5. Gnd
6. Output
7. V
CC
8. V
ref
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