Bill Of Material; Schematic; Bq27421Evm Schematic; Bill Of Materials - Texas Instruments bq27421 User Manual

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3.2

Bill of Material

Count RefDes Value
1 C1 0.47uF
1 C2 1uF
4 J1, J4, J6, ED555/2DS
J7
4 J2, J3, J8, PEC36SAAN
J9
1 J5 ED555/3DS
1 J10 22-05-3041
1 R1 14.7k
1 R2 10k
2 R3, R4 5.1k
4 TP1, TP7, 5001
TP9
7 TP2, TP3, 5002
TP11, TP12
3 TP4, TP5, 5000
TP6, TP10
1 U1 bq27421YZF-G1x
3.3

Schematic

J2
1
VDD
2
3
EXT
Optional
R1
4.7k
TP2
GPOUT
J1
1
GPOUT
2
VSS
TP1
SDA
GND
Application circuit only needs to include bq27421 and C1
SLUUA63A – April 2013 – Revised July 2016
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Table 2. Bill of Materials
Description
Capacitor, Ceramic, 10V, X5R, 10%
Capacitor, Ceramic, 6.3V, X5R, 10%
Terminal Block, 2-pin, 6-A, 3.5mm
Header, Male 3-pin, 100mil spacing
Terminal Block, 3-pin, 6-A, 3.5mm
Header, Friction Lock Ass'y, 4-pin Right Angle
Resistor, Chip, 1/16-W, 5%
Resistor, Chip, 1/16-W, 5%
Resistor, Chip, 1/16-W, 5%
Test Point, Black, Thru Hole Color Keyed
Test Point, White, Thru Hole Color Keyed
Test Point, Red, Thru Hole Color Keyed
IC, Battery Monitor and Data Logger
J3
1 VDD
VDD
2
VDD 3 EXT_VCC
EXT
Optional
R2
TP3
EXT_VCC
10 k
BIN
U1
TP4
BQ27421YZF
VDD
A1
GPOUT
C3
BAT
B1
BIN
B3
VDD
C1
SCL
VSS
A3
SCL
C1
A2
SDA
C2
SRX
B2
0.47uF
VSS
BQ27421YZF
Figure 6. bq27421EVM Schematic
Copyright © 2013–2016, Texas Instruments Incorporated
Circuit Module Physical Layout, Bill of Materials and Schematic
Size
0402
0402
0.27 x 0.25 inch
0.100 inch x 3
0.41 x 0.25 inch
0.400 x 0.500
0402
0402
0402
0.100 x 0.100 inch
0.100 x 0.100 inch
0.100 x 0.100 inch
DSBGA
TP8
Ext VDD
J4
EXT_VCC
1
EXT
2
VSS
TP5
J5
Pack+
Pack+
1
BIN
2
3
Pack-
TP6
BAT
TP9
Optional
Pack-
C2
SCL
TP10
1uF
Load+
J6
1
Load+(Host)
2
Charger+
J7
1
Charger-
TP7
2
Load-(Host)
Load-
bq27421 EVM: Single-Cell Impedance Track Technology
Part Number
ED555/2DS
PEC36SAAN
ED555/3DS
22-05-3041
Std
Std
Std
5001
5002
5000
bq27421-G1x
EXT_VCC
VDD
J8
1
VDD
2
EXT
3
R3 R4
5.1k 5.1k
TP11
SDA
TP12
SCL
SDA
Mfr
OST
Sullins
OST
Molex
Std
Std
Std
Keystone
Keystone
Keystone
TI
J9
1
VDD
2
3
EXT
J10
4
3
SDA
2
SCL
1
VSS
7