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參數(shù)資料
| 型號(hào)： | TIL5942ANFC |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDIP16 |
| 封裝： | PLASTIC, DIP-16 |
| 文件頁數(shù)： | 12/20頁 |
| 文件大?。?/td> | 295K |
| 代理商： | TIL5942ANFC |
TIL5942, TIL5942A
CURRENT-MODE-PWM CONTROLLER
WITH OPTOISOLATED VOLTAGE REFERENCE AND ERROR AMPLIFIER
SOES040 – OCTOBER 1997
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
functional block diagram
Voltage
Reference
Voltage
Regulator
Oscillator
DQ
CLK
R
Driver
LED
Primary
Secondary
TL1431X
11
13
12
14
4
3
1
2
1V
10
9
16
15
REG
OUT
IS
VC
VCC
PWM_GND
REF
RT/CT
BIAS
COMP
FB
INPUT_GND
I(VC)
IIB(IS)
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
FB
1
I
Feedback. FB is an error-amplifier inverting input.
INPUT_GND
2
I
Ground connection for the voltage reference/error amplifier section.
COMP
3
O
Error amplifier output/LED cathode connection. RC networks may be connected between COMP, FB, and
GND to stabilize the control loop of the dc/dc converter.
BIAS
4
I
Optocoupler LED anode. BIAS connects to the output voltage of the dc/dc converter or to some other suitable
supply voltage through a resistor.
NC
7,8
No connection.
OUT
9
O
Drive output. OUT is a pulse-width-modulated output.
REG
10
O
Regulator output. A 0.1-
F, typical, ceramic capacitor should be connected between REG and PWM_GND.
VCC
11
I
Supply voltage for PWM controller
REF
12
O
PWM 5-V reference output
PWM_GND
13
I
PWM ground connection
RT/CT
14
Connection for external RC network to set PWM oscillator frequency
VC
15
Connection for integrating capacitor (0.1
F typ) to PWM_GND (terminal 13)
IS
16
I
PWM current sense input
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