SARA-R4/N4 series - System Integration Manual
UBX-16029218 - R11 Design-in Page 68 of 157
C10 C13
GND
C12C11
SARA-R4/N4
52
VCC
53
VCC
51
VCC
+
Primary
Source
R3
U1
ENn
ILIM
ISET
TMR
AGND
VIN
C2C1
12V
NTC
PGND
SW
SYS
BAT
C4
R1
R2
D1
θ
Li-Ion/Li-Pol
Bat t ery Pack
B1
C5
Li-Ion/Li-Polymer Bat t ery
Charger / Regulat or with
Power Path Managment
VCC
C3 C6
L1
BST
D2
VLIM
R4
R5
C7 C8
D3
R6
SYSFB
R7
Figure 24: Li-Ion (or Li-Polymer) battery charging and power path management application circuit
Part Number - Manufacturer
Li-Ion (or Li-Polymer) battery pack with 10 k NTC
22 µF Capacitor Ceramic X5R 1210 10% 25 V
GRM32ER61E226KE15 - Murata
100 nF Capacitor Ceramic X7R 0402 10% 16 V
GRM155R61A104KA01 - Murata
1 µF Capacitor Ceramic X7R 0603 10% 25 V
GRM188R71E105KA12 - Murata
330 µF Capacitor Tantalum D_SIZE 6.3 V 45 m
T520D337M006ATE045 - KEMET
68 pF Capacitor Ceramic C0G 0402 5% 50 V
GRM1555C1H680JA01 - Murata
15 pF Capacitor Ceramic C0G 0402 5% 25 V
GRM1555C1E150JA01 - Murata
10 nF Capacitor Ceramic X7R 0402 10% 16 V
GRM155R71C103KA01 - Murata
Low Capacitance ESD Protection
MBRA340T3G - ON Semiconductor
10 k Resistor 0402 1% 1/16 W
1.05 k Resistor 0402 1% 0.1 W
22 k Resistor 0402 1% 1/16 W
26.5 k Resistor 0402 1% 1/16 W
2.2 µH Inductor 7.4 A 13 m 20%
Li-Ion/Li-Polymer Battery DC/DC Charger / Regulator with
integrated Power Path Management function
MP2617H - Monolithic Power Systems (MPS)
Table 16: Suggested components for battery charging and power path management application circuit
☞ See the section 2.2.1.10, and in particular Figure 27 / Table 19, for the parts recommended to be
provided if the application device integrates an internal antenna.
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