ISL62882EVAL2Z 데이터 시트보기 (PDF) - Intersil
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ISL62882EVAL2Z Datasheet PDF : 19 Pages
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ISL62882EVAL2Z Schematic
Application Note 1461
R1
+3.3V
49.9
"0" S1 "1"
DPRSLPVR
1
4
2
3
PSI#
EAD102L
TLV431ASNT1
U1
+
-
1.2V4REF
VCCP1.2V OUT
DPRSLPVR
PSI#R14
0
OFF
P1
R21
S3
ON P2
10K
+3.3V
R23
1.91K
CLK_EN#
PGOOD
TP13
TP16
2N7002
Q1
PLACE NEAR Q2
C5
22PF
C6
R10 C11
10PF
C3
R7
562 390PF
R11
150PF 412K
2.87K
ISEN3
J3
IN
TO POWER STAGE 1 2 ISEN3/FB2
J1
ISEN2
1 2 +5V +5V
IN FROM POWER STAGE 3 4 ISEN2
5 6 GND
DNP
J2
ISEN1
IN FROM POWER STAGE
12
34
+5V +5V
ISEN1
5 6 GND
1
2
R16
3
147K 4
5
6
7
8
9
10
PGOOD
PSI#
RBIAS
VR_TT#
NTC
VW
COMP
FB
FB2
ISEN2
41
EP
R20
0
R22
0
R17
VCORE IN
10
VCCSENSE IN
C12
330PF
VSSSENSE IN
R18
10
C13
1000PF
U6
ISL62882HRZ
R30
1K
C81 R109
1200PF 100
VCCP1.2V
"0" U2 "1"
1
14
2
13
3
12
4
11
5
10
6
9
7
8
MST7_SPST
VID0
VID1
VID2
VID3
VID4
VID5
VID6
30
BOOT2
29
UGATE2
PHASE2 28
27
VSSP2
LGATE2 26
25
VCCP
24
LGATE1B
LGATE1A 23
22
VSSP1
21
PHASE1
R47
DNP
J4
+5V +5V 1 2
PWM3 3 4
GND 5 6
DNP
BOOT2 OUT
UGATE2 OUT
PHASE2 OUT
TO DRIVER PWM3 OUT
+3.3V
LGATE2 OUT
R48
LGATE1B OUT
0
LGATE1/A OUT
PHASE1 OUT
R52
+5V
0
TP37
3.3V
TP29
5V
TP30
PGND
R37
1 R40
0
NOTE:
UGATE1 OUT
BOOT1 OUT
IN +5V
IN VIN
ROUTE UGATE1 TRACE IN PARALLEL WITH THE PHASE1 TRACE
GOING TO THE SOURCE OF Q1 AND Q2.
ROUTE LGATE1/B TRACE IN PARALLEL WITH THE VSSP TRACE
GOING TO THE SOURCE OF Q3 AND Q4.
SAME RULE APPLIES TO THE OTHER PHASE
TP28
IMON
IN VSSSENSE
IN VSUM+
IN VSUM-
PLACE NEAR L1
FIGURE 2. ISL62882EVAL2Z SCHEMATICS, 1 OF 5
6
AN1461.1
July 13, 2009
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