SC1146 查看數據表（PDF） - Semtech Corporation
零件编号
产品描述 (功能)
比赛名单
SC1146 Datasheet PDF : 10 Pages
| |||
+12V
Long PCB Trace
J1
1
C8
2
3
4
5 C11 C12 C13
6
INPUT
S1
9
10
11
12
13
14
15
16
8
7
6 EN
5
4
3
2
1
Vout/Clk switch
10K
R33
10 SMOD
R1
Power Good
1
5v
R4 R5 R6 R7
2
10K 10K 10K 10K Divsel
3
Clksel
4 Extclk
24
Pwrgood
23 22
Drv3
R9
22 22
Drv1
R8
Vcc2 21
JMP2
3k
R32
EN
47pf
C16
5
Rref
20 22
Drv0
R11
6
19 22
Vid0
Drv2
R13
47pf
C26
7
Vid1
18
GND
JMP1
8
Vid2
9
Vid3
17 EN
Enable
Open
R15
16
FBG
10
Vid4
11
OC+
15
Bgout
14
FB
VOUT
47pf
C37
12
OC-
13
Comp
TBD 100
R18 R19
sel
R22
SC1146
U2
.01
.1
C45
C46
1
10K
.1u
R20
R21
C42
.001
open
R24 C43
.1u
47pf
C44
C47
R25
Freq. set by R22
Freq.=(8.2K/R22)*2Mhz per
2.2
Phase
ENSYN
U1
8
14
3 Vcc
BST
GND
13
7
TG
2 PRDY
12
4 EN
DRN
6 CO
9
1 DELAY_C BG
OVP_S
11
5
DSPS_DR 10
S_MOD PGND
SC1405B
U3
8
14
3
Vcc
GND
BST
13
7
TG
2 PRDY
12
4 EN
DRN
6 CO
9
1 DELAY_C BG
OVP_S
11
5
DSPS_DR 10
S_MOD PGND
SC1405B
U4
8
14
3 Vcc
BST
GND
13
7
TG
2 PRDY
12
4 EN
DRN
6 CO
9
1 DELAY_C BG
OVP_S
11
5
DSPS_DR 10
S_MOD PGND
SC1405B
U5
8
14
3 Vcc
BST
GND
13
7
TG
2 PRDY
12
4 EN
DRN
6 CO
9
1 DELAY_C BG
OVP_S
11
5
DSPS_DR 10
S_MOD PGND
SC1405B
*
D1 D2 D3 D4 .1u C50
SS12 SS12 SS12 SS12
.1u
C49
R2
FDP6035
Q1
.1u
R28
C9
0
0
Q2
R3
0
FDB7030
.1u
.1u
C22
R29
0
C18
10u,16V
C19
FDP6035
Q3
R10
0
Q4
R12
0
FDB7030
.1u
10u,16V
C27
C28
FDP6035
R14
Q5
.1u
C31
R30
0
R16
Q6
0
FDB7030
0
.1u
10u,16V
C35
C36
FDP6035
R17
Q7
0
.1u C40
R23 Q8
R31
FDB7030
0
0
BY JUMPERING JMP1, ALL SC1405'S ARE ENABLED AND
DISABLED TOGETHER WITH SC1144. THREE OF THE SC1405'S
CAN BE DIRECTLY CONTROLLED BY SEPARATING THE TWO
ENABLES. (power saving mode)
.1
TBD
R27 C48
*
0
R26
R26 AND R27 SET THE OVERVOLTAGE TRIP
POINT. C48 SETS THE TIME CONSTANT.
R27=0,R26=OPEN to disable OVP_S.
Shipped with OVP_S disabled
PID1103-1u
D5 L1
30BQ015
PID1103-1u
D6 L3
30BQ015
PID1103-1u
D7 L5
30BQ015
PID1103-1u
D8 L7
30BQ015
22u,10V
C1
22u,10V
C6
22u,10V
C10
22u,10V
C15
22u,10V
C17
22u,10V
C20
22u,10V
C21
22u,10V
C24
22u,10V
C25
22u,10V
C29
22u,10V
C30
22u,10V
C33
22u,10V
C34
22u,10V
C38
C39
1000uf,6.3
C51
1000uf,6.3
Share Link: 