Maxim Integrated │
23
www.maximintegrated.com
Evaluates: MAX86140 and MAX86141
MAX86140/MAX86141
Evaluation System
MAX86140/MAX86141 EV Kit Schematics
MAXSensorBLE
L2OUT ACTS AS LDO
ONLY ONE IS ENABLED
L1OUT ACTS AS SWITCH
DNI
22UF
B2B-PH-K-S(LF)(SN)
2.2UH
DNI
10K
39K
0
0
0
261K
2.2UH
22UF
22UF
1UF
0.1UF
4.7UF
10K
SML-LX0404SIUPGUSB
22UF
MAX18
1UF
22UF
5035662500
22UF
22UF
10K
4.7K
4.7K
MAX20303
1UF
4.7UF
4.7UH
74AUP1G97GF
EVP-AWCD2A
4.7UF
4.7UF
4.7UF
4.7UF
100K
C14
C10
BAT
C6
U29
R30
R29
R6
U1
C3
C1
C4
C8
C9
C12
C16
R5
R7
R8
R9
R14
R10
R11
C2
C15
C13
C7
C47
C5
R13
J3
C43
LED
U13
L1
L2
21
SW
L3
VLED
1V2
PMIC_PFN1
1V8_B
1V8_S
SPI0_CSACC_N
SPI0_SCK
ACC_INT_N
VLED
1V8_S
J3.17
SDA
SPI0_CSOPT_N
SPI0_MISO
SPI0_MOSI
OPT_INT_N
PMIC_LED2
PMIC_LED0
PMIC_LED1
J3.18
SCL
SCL
SYS_OUT
PMIC_MPC
BATT_PWR
1V8_S
SDA
1V8_S
SYS_OUT
SHDNL_N
VLED
1V8_B
1V8_B
PMIC_MPC
RST_N
SDA
1V8_B
5V0_B
3V3
USB_VBUS
1V8_B
RST_N
PMIC_PFN2
PMIC_ALRT_N
SCL
PMIC_INT_N
PMIC_MON
25
11
C3
G3
G4
C4
B7
23
20
26
D6
10
24
19
17
18
21
E5
E6
H3
D7
E7
F7
C7
H6
H7
G7
A6
A7
G1
H2
F1
E4
C6
H5
B4
B5
B3
D5
C2
A1
A2
D3
A3
G2
G6
G5
B6
A5
E1
D1
C1
E3
C5
D2
E2
F6
B1
B2
F3
F2
A4
H4
F5
F4
D4
1
2
A3
C3
A1
C1
A2
C2
1
2
3
5
7
8
9
12
13
14
15
16
22
27
1
2
1
4
2
1 2
3
1
6
2
5
4
1
2
1
2
1
2
H1
6
4
3
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
BK1LX
BK1GND
CHGIN
SYS
BAT
BSTLVLX
BSTHVLX
BK1OUT
L1IN
L1OUT
MPC2
MPC3
INT
BSTGND
BBLVLX
RST
THM
TPU
SET
SFOUT
BSTOUT
BBHVLX
ALRT
AGND
CAP
MON
PFN2
LED0
BBGND
QSTRT
CTG
VDIG
GSUB
PFN1
LED1
BBOUT
CELL
MPC0
MPC1
MPC4
DGND
LED2
BK2OUT
L2IN
CPOUT
CPN
CPP
SDA
SCL
BK2LX
BK2GND
L2OUT
SYS
HDGND
DRP
DRN
C
VCC
Y
A
GND
B
G
B
R
+
SHDN
SET
POK
OUT
IN
GND