Microchip Technology Microsemi miSLIC Le9642 - Single Channel Option Using Le9641 1 FXS Tracker; Figure 5 - Le9641 Mislic Single Channel Population

ZLR964222L Line Module User Guide
17
Microsemi Corporation Confidential and Proprietary
Other Microsemi FXS devices:
 Le9652 2ch 150V Tracking ZSI device in a 48QFN
 Le9622 2ch 120V ABS device in a 53QFN
 Le9632 2ch 150V Tracking device in a 53QFN
 Le9643 1ch 95V Tracking device in a 36QFN
 Le9653 1ch 150V Tracking device in a 36QFN
4.6 Single Channel Option Using Le9641 1FXS Tracker
A pin compatible single channel device, Le9641, is available to support options to populate either 2 channels or a
single channel on the same PCB layout. The Le9641 1 FXS tracking device is a drop in pin compatible device to the
Le9642 ABS. Customers can build a low cost 2 channel design with Le9642 buck-boost ABS and then depopulate
channel 2’s components and some power supply components to get a single channel fixed tracking buck-boost
design.
Note one difference with this design option is the use of two single channel protection devices, U2 and U3, instead
of a dual device. This allows the de-population of one of the protection devices, U3, saving significant cost.
Figure 5 - Le9641 miSLIC Single Channel Population
To convert a Le9642 based BBABS design to a single channel Le9641 design, the components associated with
channel 2 are depopulated. Addtionally the components associated with VBATH generation are depopulated. The
VBATL net becomes the single VBAT (48) for the device and the VBATH net is not used. Pins VBL2 (37), VBH (43),
and AVDD2 (35) are not internally connected on the Le9641 so there is no issue with having voltage present on
A
A
B
B
C
C
D
D
E
E
4 4
3 3
2 2
1 1
NOTES
- Exposed pad on the Le9642 must be connected
through via holes to both side of top and bottom layer copper
and connected to a GND plane.
Locate CVDx next to DVDD, and CVAx next to AVDD pins.
ALL GROUNDS ARE VIA THE EPAD
- Recommended EPAD should be a 216mil square pad
with a 7 x 7 array of 13mil/.33mil vias. Vias should be
connected to the ground plane with solid connections.
TDC1
TAC1
TIPD1
RINGD1
RAC1
RDC1
TDC2
TAC2
TIPD2
RINGD2
RAC2
RDC2
Population Options for 2 FXS BB ABS and 1FXS BB
2 FXS BB ABS 1 FXS TrackerReference
RVS2 DNP1Meg 1% 0805
Table 1
RT2
CHL2
47.5K 1% 0402 DNP
CLFC1
4.7uF X5R 6.3V DNP
4.7uF X5R 6.3V0.1uF 10V
0805
See Table 1
0603
RVP1 DNP 0ohm 0603
De-populate for 1 FXS
U3 TISP61089BD DNP
See Table 1
See Table 1
A 10K pulldown resistor
is required on SWISZ if
the Le9641 1ch option is required.
Pin 24 is the ZSIn on Le9641
VBATL_VBAT
AGND
VBATH
3.3V
SWOUTY
VBSENSE1
SWISY
ZCLK
ZMOSI
ZSYNC
ZMISO
AGND
VBATH3.3V
AGND
AGND
3.3V
AGND
AGND
3.3V
AGND
AGND
AGND
3.3V
VBATL_VBAT
VBATH
3.3VA
3.3VA
AGND
VBATH
AGND AGND
AGND
AGND
VBATL_VBAT
VBATH
VBATL_VBAT
Title
Size Document Number Rev
Date: Sheet
of
Designer
0LFURVHPL3URSULHWDU\'RFXPHQW
ZLR964222L B3
Le9642 2 FXS Shared Buck-Boost ABS
B
45Monday, April 30, 2018
JLR
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Title
Size Document Number Rev
Date: Sheet
of
Designer
0LFURVHPL3URSULHWDU\'RFXPHQW
ZLR964222L B3
Le9642 2 FXS Shared Buck-Boost ABS
B
45Monday, April 30, 2018
JLR
0LFURVHPL
)UHLGULFK/Q
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$XVWLQ7;
Title
Size Document Number Rev
Date: Sheet
of
Designer
0LFURVHPL3URSULHWDU\'RFXPHQW
ZLR964222L B3
Le9642 2 FXS Shared Buck-Boost ABS
B
45Monday, April 30, 2018
JLR
0LFURVHPL
)UHLGULFK/Q
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RTDCA1 1Meg 1%
RZSI1 0 Ohm
PTC1
MF-SD013/250
1 2
3 4
RVS1 1Meg
1%
SK2
TA-250-6
2
4
1
3
5
6
CRAC1 0.022uF
100V
RT2
47.5K
1%
RZSI2 0 Ohm
RRDCA1 1Meg 1%
RRAC1 10K 1%
RT1
47.5K
1%
SK1
TA-250-6
2
4
1
3
5
6
RZSI3 0 Ohm
RVS2 1Meg
1%
PTC2
MF-SD013/250
1 2
3 4
CV2
4.7uF
6.3V
CVP1
0.1uF
100V
RZSI4 0 Ohm
RTDCA2 1Meg 1%
CREF1
10uF
6.3V
CVIO1
0.01uF
16V
RV1
1R0 5%
RVP1 0R
CVD12
0.1uF
16V
CVD1
0.01uF
16V
CTD2
.022uF
100V
RRDCA2 1Meg 1%
U3
TISP61089BD
K1a
1
G
2
NC
3
K2a
4
K2b
5
A2
6
A1
7
K1b
8
CRD2
.022uF
100V
CHL2 4.7uF 6.3V
ZSI
Interface
Channel 1
Channel 2
POWER
N/C Do
Not Route
GROUND
Analog
Settings
Switch
Control
Channel 1
Channel 2
Switch
Control
U1
Le9642
VBL1
48
RVSD1
39
RSN1
1
AVDD2
35
RTV1
3
IHL1
5
TAC1
6
RAC1
7
TDC1
8
RDC1
9
LFC1
10
IREF
33
VREF
4
SWVSY
11
SWISY
13
SWCMPY
12
SWOUTY
16
DVDD1
15
ZSYNC
18
ZMISO
19
ZCLK
21
DVDHPI
23
SWOUTZ
17
SWCMPZ
25
SWISZ
24
SWVSZ
26
VDDSW
14
LFC2
27
RDC2
28
TDC2
29
RAC2
30
TAC2
31
IHL2
32
RTV2
34
RSN2
36
DVDD1V2
22
RSVD2
42
RINGD2
41
RSVD3
44
RSVD4
47
TIPD2
40
VBL2
37
RINGD1
45
TIPD1
46
VBH
43
ePAD_GND
49
AVDD1
2
ZMOSI
20
RVSD0
38
CCMP1 2.2nF
16V
RRAC2 10K 1%
CVA1
0.1uF
16V
CTAC1 0.022uF
100V
J1
DNP
12
34
56
78
910
CTAC2 0.022uF
100V
CTD1
.022uF
100V
RTAC1 10K 1%
CLFC1 0.1uF 16V
RCMP1 1Meg 1%
RREF1 75K
0.5%
RTAC2 10K 1%
CHL1 4.7uF 6.3V
CVA2
0.1uF
16V
RZ1 10K 1%
CRD1
.022uF
100V
CRAC2 0.022uF
100V
U2
TISP61089BD
K1a
1
G
2
NC
3
K2a
4
K2b
5
A2
6
A1
7
K1b
8
CV1
4.7uF
6.3V
PRING1
ZCLKi
ZSYNCi
ZMISOi
ZMOSIi
PTIP1
PTIP2
PRING2
ZCLKi
ZMISOi
ZMOSIi
ZSYNCi
PCLK
FS
DXA
DRA
ZCLKi
ZMISOi
ZMOSIi
ZSYNCi
PCLK
FS
DXA
DRA
PRING2
PTIP2
PTIP1
PRING1