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SC2646BTSTRT Datasheet(PDF) 6 Page - Semtech Corporation

Part # SC2646BTSTRT
Description  2, 3 or 4 Phase Combi-Sense PWM Controller
PDF  9 Pages
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Manufacturer  SEMTECH [Semtech Corporation]
Direct Link  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC2646BTSTRT Datasheet(HTML) 6 Page - Semtech Corporation

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© 2005 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC2646B
Block Diagram
VID1
13
R
S
Q
OUT
+
-
OUT1
19
DRV3
MSENSE
8
R
GSENSE
VBG
BUFFER
OUT
+
-
DRV2
OUT
+
-
VID4
10
BGOUT
C/A1
OS3
1
CLOCK DIVIDER
CLK
SEL3
P1
P2
P3
P4
VID2
12
ERROUT
OUT
+
-
VREF
OSCILLATOR
OSC
ROSC
Ramp
OUT3
21
R
S
Q
C/A2
DAC
OS2
2
OS4 24
PWRGD
16
C/A3
0.8*VBG
VCC
9
DRV4
R
S
Q
VID5
15
4.2V
OUT
+
-
C/A4
OUT
+
-
OCP &
SHUTDOWM
DROOP
PWM1
OUT4
22
OUTSEN 23
BGOUT
4
UVLO &
LATCH
OUT
+
-
PWM2
DELAY
PWM3
OUT2
20
BGOUT
FB
7
OS1
3
11111
INHIBIT
OUTSEN
PWM4
OUTSEN
OUT
+
-
-
+
OSCREF 17
OUT
+
-
OUT
+
-
DRV1
3 PHASE
SELECT
ERROUT
OUT
+
-
AGND
18
ERROUT
5
VCC
6
OUT
+
-
VID0
14
VID3
11
PWR_GOOD
VID0
VID1
VID2
VID3
VID4
VID5
I_DAC
OUT
+
-
R
S
Q
E/A



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