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參數(shù)資料
| 型號(hào)： | ML4825 |
| 廠(chǎng)商： | Fairchild Semiconductor Corporation |
| 英文描述： | High Frequency PWM Controller(高頻PWM控制器) |
| 中文描述： | 高頻PWM控制器（高頻脈寬調(diào)制控制器） |
| 文件頁(yè)數(shù)： | 2/9頁(yè) |
| 文件大?。?/td> | 108K |
| 代理商： | ML4825 |
ML4825
2
REV. 1.0 10/12/2000
PIN CONFIGURATION
PIN
NAME
FUNCTION
PIN
NAME
FUNCTION
1
(2)
INV
Inverting input to error amp.
2
(3)
NI
Non-inverting input to error amp.
3
(4)
E/A OUT
Output of error amplifier and input
to main comparator
4
(5)
CLOCK
Oscillator output
5
(7)
R
T
Timing resistor for oscillator—
sets charging current for oscillator
timing capacitor (pin 6)
6
(8)
C
T
Timing capacitor for oscillator
7
(9)
RAMP
Non-inverting input to main
comparator. Connected to C
T
for
voltage mode operation or to current
sense resistor for current mode
8
(10) SS
Normally connected to soft start
capacitor
9
(12) I
LIM
/SD
Current limit sense pin. Normally
connected to current sense resistor.
10 (13) GND
Analog signal ground
11 (14) OUT A
High current totem pole output. This
output is the first one energized after
power on reset
12 (15) PWR GND Return for the high current totem
pole outputs
13 (17) V
C
Positive supply for the high current
totem pole output
14 (18) OUT B
High current totem pole output
15 (19) V
CC
Positive supply for the IC
16 (20) 5.1V REF
Buffered output for the 5.1V voltage
reference
PIN DESCRIPTION
(Pin number in parentheses is for PLCC version)
ML4825
16-Pin PDIP
16-Pin SOIC
ML4825
20-Pin PLCC
INV
NI
E/A OUT
CLOCK
R
T
C
T
RAMP
SS
5.1V REF
V
CC
OUT B
V
C
PWR GND
OUT A
GND
I
LIM
/SD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
TOP VIEW
OUT B
V
C
NC
PWR GND
OUT A
E/A OUT
CLOCK
NC
R
T
C
T
9
10
11
12
13
N
I
N
5
V
C
R
S
N
I
L
/
G
4
5
6
7
8
3
2
1
20
19
18
17
16
15
14
TOP VIEW
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ML4825 WAF UP | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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| ML4825CP UP WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| ML4825CQ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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