mb3775pfv Fujitsu Microelectronics, Inc., mb3775pfv Datasheet - Page 7

• Manufacturer Part Number: mb3775pfv
• Description: Switching Regulator Controller
• Manufacturer: Fujitsu Microelectronics, Inc.

Triangular waveform oscillator output
Dead Time PWM
Short circuit protection
comparator Reference
input
PWM comparator
output
Output Transistor
collector waveform
S.C.P . Terminal
waveform
Short circuit protection
comparator output
Power supply voltage
Error Amp. output
input voltage
TEST CIRCUIT
TIMING CHART (Internal Waveform)
0.1 F
(V
CC
: Min Value)
“High”
“High”
“High”
“Low”
“Low”
“Low”
1.9 V
1.5 V
1.3 V
1.1 V
0.6 V
3.6 V
0 V
0 V
SW
330 pF
C
LOCK-OUT
2.8 V (Typ Value)
PE
LOCK-OUT CANCEL
16
1
15
2
15 k
14
3
TEST
TEST
13
4
MB3775
12
5
INPUT
INPUT
11
6
10
7
Protection Enable Time t
V
CC
9
8
=6 V
4.7 k
4.7 k
PE
: = 0.6 x 10
OUTPUT 1
OUTPUT 2
DEAD TIME 100%
MB3775
t
6
PE
x C
PE
(s)
7