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零件编号
产品描述 (功能)
MB3778 查看數據表(PDF) - Fujitsu
零件编号
产品描述 (功能)
比赛名单
MB3778
Switching Regulator Controller
Fujitsu
MB3778 Datasheet PDF : 31 Pages
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MB3778
■
TEST CIRCUIT
SW
C
PE
CTL
INPUT V
CC
=
6 V
TEST
4.7 k
Ω
4.7 k
Ω
16 15 14 13 12 11 10 9
MB3778
12345678
OUTPUT 1
OUTPUT 2
330 pF
15 k
Ω
TEST
INPUT
■
TIMING CHART (Internal Waveform)
Triangular waveform oscillator output
Short circuit protection
comparator Reference
input
Dead Time, PWM input
voltage
2.1 V
1.9 V
1.6 V
1.3 V
Error Amp output
PWM comparator
output
"High"
"Low"
Output Transistor
collector waveform
"High"
"Low"
S.C.P. Terminal
waveform
0.65 V
0.05 V
Short circuit protection
"High"
comparator output
"Low"
Control Input
voltage
2.1 V
(V
CTL
: Min Value)
0V
Power supply voltage
3.6 V
(V
CC
: Min Value)
0V
Power “ON”
DEAD TIME 100%
t
PE
Power “OFF”
Protection Enable Time t
PE
0.6
×
10
6
×
C
PE
(
µ
s)
9
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