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参数资料
| 型号： | FA3675F |
| 元件分类： | 稳压器 |
| 英文描述： | 0.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQFP48 |
| 封装： | LQFP-48 |
| 文件页数： | 3/8页 |
| 文件大小： | 108K |
| 代理商： | FA3675F |
FA3675F
124
* Ta < 25
°C
Pin
Description
No.
symbol
1
VCC1
Power supply for control circuit
2
RT
Oscillator timing resistor
3
CT
Oscillator timing capacitor
4
CS3
Soft start for Ch. 3 & Ch. 4
5
CS5
Soft start for Ch. 6
6
CS4
Soft start for Ch. 5
7
CS1
Soft start for Ch. 1
8
CS2
Soft start for Ch. 2
9
VREF
Reference voltage output
10
CREF
Capacitor for reference voltage output
11
VREG
Regulated voltage output
12
IN2-
Ch. 2 inverting input to error amplifier
13
FB2
Ch. 2 output of error amplifier
14
IN1-
Ch. 1 inverting input to error amplifier
15
FB1
Ch. 1 output of error amplifier
16
IN5+
Ch. 5 non-inverting input to error amplifier
17
IN5-
Ch. 5 inverting input to error amplifier
18
FB5
Ch. 5 output of error amplifier
19
IN6-
Ch. 6 inverting input to error amplifier
20
FB6
Ch. 6 output of error amplifier
21
IN3+
Ch. 3 non-inverting input to error amplifier
22
IN3-
Ch. 3 inverting input to error amplifier
23
FB3
Ch. 3 output of error amplifier
24
IN4+
Ch. 4 non-inverting input to error amplifier
Pin
Description
No.
symbol
25
IN4-
Ch. 4 inverting input to error amplifier
26
FB4
Ch. 4 output of error amplifier
27
CP
Timing capacitor for timer latch delay
28
GND
Ground
29
TLSEL
Ch. 3 & Ch. 4 timer latch selection (Low: disable)
30
CNT5
Ch. 6 ON/OFF function
31
CNT4
Ch. 5 ON/OFF function
32
CNT2
Ch. 2 ON/OFF function
33
CNT3
Ch. 3 & Ch. 4 ON/OFF function
34
CNT1
Ch. 1 ON/OFF function
35
VCC2
Power supply for output stage
36
VDRV
Bias for logic circuit of outputs
37
PGND1
Power ground
38
OUT1S
Ch. 1 source electrode of output stage
39
OUT1
Ch. 1 output (for Pch-MOSFET)
40
OUT4
Ch. 4 output (for Pch-MOSFET)
41
OUT3
Ch. 3 output (for Pch-MOSFET)
42
OUT2S
Ch. 2 source electrode of output stage
43
OUT2
Ch. 2 output (for Pch-MOSFET)
44
OUT6S
Ch. 6 source electrode of output stage
45
OUT6
Ch. 6 output (for Nch-MOSFET)
46
OUT5
Ch. 5 output (for Pch-MOSFET)
47
OUT5S
Ch. 5 source electrode of output stage
48
PGND2
Power ground
s Absolute maximum ratings
Item
Symbol
Rating
Unit
Power supply voltage
VCC
20.0
V
Source peak current
IOUT
–200
mA
Sink peak current
IOUT
200
mA
Input voltage for analog input
VANA
–0.3 to +2.5
V
Input voltage for logic input
VLOG
–0.3 to Vcc +0.5 (Vcc
≤ 5.0V)
V
–0.3 to +5.5 (Vcc > 5.0V)
Total power dissipation
*
Pd
550
mW
Junction temperature
TJ
125
°C
Ambient temperature
TOP
–20 to +85
°C
Storage temperature
Tstg
–40 to +150
°C
s Recommended operating conditions
Item
Symbol
Min.
Max.
Unit
Power supply voltage
VCC
2.5
18.0
V
Input voltage for logic input
Vcc
≤ 5.0
VLOG
0.0
Vcc +0.25
V
Vcc > 5.0
0.0
5.25
Oscillation frequency
fOSC
50
1000
kHz
Oscillator timing resistor
RT
6.8
100
k
Oscillator timing capacitor
CT
22
1000
pF
CREF terminal by-pass capacitor
CREF
0.01
F
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