Texas Instruments bq24720 EVM, User Manual, Page: 23 / 34

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Bill of Materials, Board Layout, and Schematics
bq24720 bq24721
Ref Des Value Description Size Part Number MFR
-001 -002
2 2 R27, R30 20k Resistor, Chip, 20 k
Ω
, 1/10-W, 5% 0805 Std Std
R28, R29, R31,
6 6 2.2k Resistor, Chip, 1/10W, 5% 0805 Std Std
R34, R39, R65
1 1 R3 20k Resistor, Chip, 1/16W, 5% 0402 Std Std
3 3 R4, R6, R9 5.1k Resistor, Chip, 1/16W, 5% 0402 Std Std
1 1 R5 100k Resistor, Chip, 1/16W, 5% 0402 Std Std
1 1 R7 1k Resistor, Chip, 1/16W, 5% 0402 Std Std
R8, R12, R17,
6 6 0 Resistor, Chip, 1/16W, 5% 0402 Std Std
R19, R24, R38
SJ1, SJ2,
7 7 SJ3,SJ4, SJ5, Shorting jumpers, 2-pin, 100mil spacing 929950-00 3M/ESD
SJ6, SJ7
4 4 6-32 NYL nuts
ST1, ST2, ST3,
4 4 4816 STANDOFF M/F HEX 6-32 NYL 0.500" sf_thvt_325_rnd 4816 Keystone
ST4
TP1, TP2, TP3,
TP4, TP5, TP6,
TP13, TP14,
TP19, TP22,
18 18 5002 Test Point, White, Thru Hole Color Keyed 0.100
×
0.100" 5002 Keystone
TP24, TP26,
TP27, TP29,
TP31, TP32,
TP42, TP43
TP15, TP30, Adaptor, 3.5-mm probe clip
4 4 0.2 131-4244-00
TP45, TP46 ( or 131-5031-00)
TP7, TP9, TP10,
TP11, TP12,
TP16, TP17,
TP20, TP21,
TP23, TP25,
0 0 Test Point, 0.020 Hole"
TP33, TP34,
TP35, TP36,
TP37, TP38,
TP39, TP40,
TP41, TP47
TP8, TP18, TP28,
4 4 5006 Test Point, Black, Thru Hole Compact Style 0.125
×
0.125 5006
TP44
IC, Advanced Multi Cell Synchronous
1 0 U1 QFN-32 bq24720RHB TI
Charger and System Power Selector
IC, Advanced Multi Cell Synchronous
0 1 U1 QFN-32 bq24721RHB TI
Charger and System Power Selector
SLUU237 – January 2006 bq24720/21 EVM (HPA104) for Multi-Cell Synchronous 23
Switch-Mode Charger With System Power Selector and SMBus SBS-Like Interface