Ublox SARA-R5 Series System Integration Manual

SARA-R5 series - System integration manual
UBX-19041356 - R04 Design-in Page 48 of 118
C1-Public
Using a battery pack with an internal NTC resistor, the MP2617H can monitor the battery temperature
to protect the battery from operating under unsafe thermal conditions.
Several parameters as the charging current, the charging timings, the input current limit, the input
voltage limit, the system output voltage can be easily set according to the specific application
requirements, as the actual electrical characteristics of the battery and the external supply / charging
source: suitable resistors or capacitors must be accordingly connected to the related pins of the IC.
C10 C13
GND
C12C11
SARA-R5 series
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
battery pack
B1
C5
Li-Ion/Li-Pol battery
charger / regulator with
power path managment
VCC
C3 C6
L1
BST
D2
VLIM
R4
R5
C7 C8
D3
R6
SYSFB
R7
Figure 26: Li-Ion (or Li-Pol) battery charging and power path management application circuit
Reference
Description
Part number - Manufacturer
B1
Li-Ion (or Li-Pol) battery pack with 10 k NTC
Various manufacturer
C1, C5, C6
22 F capacitor ceramic X5R 0603 10% 25 V
GRM188R60J226MEA0 - Murata
C2, C4, C10
100 nF capacitor ceramic X7R 0402 10% 16 V
GCM155R71C104KA55 - Murata
C3
1 F capacitor ceramic X7R 0603 10% 25 V
GCM188R71E105KA64 - Murata
C7, C12
68 pF capacitor ceramic C0G 0402 5% 50 V
GRM1555C1H680JA16 - Murata
C8, C13
15 pF capacitor ceramic C0G 0402 5% 25 V
GJM1555C1H150JB01 - Murata
C11
10 nF capacitor ceramic X7R 0402 10% 16 V
GRT155R71C103KE01 - Murata
D1, D2
Low capacitance ESD protection
CG0402MLE-18G - Bourns
D3
Schottky diode 40 V 3 A
MBRA340T3G - ON Semiconductor
R1, R3, R5, R7
10 k resistor 0402 1% 1/16 W
Generic manufacturer
R2
1.05 k resistor 0402 1% 0.1 W
Generic manufacturer
R4
22 k resistor 0402 1% 1/16 W
Generic manufacturer
R6
26.5 k resistor 0402 1% 1/16 W
Generic manufacturer
L1
2.2 H inductor 7.4 A 13 m 20%
SRN8040-2R2Y - Bourns
U1
Li-Ion/Li-Pol battery DC-DC charger / regulator with
integrated power path management function
MP2617H - Monolithic Power Systems (MPS)
Table 13: Suggested components for battery charging and power path management application circuit
☞ See the section 2.2.1.9, and in particular Figure 28 / Table 15, for the parts recommended to be
provided if the application device integrates an internal antenna.

Ublox SARA-R5 Series Specifications

General

Brand	Ublox
Model	SARA-R5 Series
Category	Control Unit
Language	English