BD8646 데이터 시트보기 (PDF) - ROHM Semiconductor
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BD8646 Datasheet PDF : 5 Pages
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◎BLOCK DIAGRAM
FB
11
FC
12
RT
13
PSET
14
EN
15
NC
16
NC
17
VIN
18
VIN
19
VIN
20
OSC
Protect time
EN
GND
10
SS
Softstart/Delay 9
CURRENT
DET
NC
8
5V
BOOT
7
SW
PWM
6
CONTROL
SW
5
SW
4
PGND
3
PGND
2
PGND
1
VOUT
◎PIN ASSIGNMENT
No. Symbol
Description
1
PGND
Power GND terminal
2
PGND
Power GND terminal
3
PGND
Power GND terminal
4
SW
Switching output terminal
5
SW
Switching output terminal
6
SW
Switching output terminal
7
BOOT
Boot strap terminal
8
NC
-
Soft start adjustment capacity connection
9 SS/DELAY
terminal
10
GND
Signal GND terminal
No. Symbol
Description
11
FB
Feedback terminal
12
FC
Phase amends terminal
Frequency adjustment resistance connection
13
RT
terminal
14
PSET
Adjust OFF LATCH time terminal
15
EN
Enable input
16
NC
-
17
NC
-
18
VIN
Power supply input terminal
19
VIN
Power supply input terminal
20
VIN
Power supply input terminal
◎PACKAGE OUTLINE
Product number
BD8646
1PIN MARK
Lo No.
SSOP-B20W (UNIT：mm)
REV. B
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