Schematics
CONFIDENTIAL AND PROPRIETARY
TITLE & REV:
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LTR
REVISION RECORD
APPROVED: DATE:ECO NO:
EQA:
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APPROVED:
DATED:
DATED:
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DEPARTMENT:
DOCUMENT NO.:
Hardware DEPT.
COMPANY:
Spreadtrum communications, Inc.
BATTERY
Switching charger
Battery temperature monitor
If not use,BAT_TEMP_ADC connect to GND
SENSE_P and SENSE_N differential layout
R6102 1/2W 1% 5A(4.975A)
25V
U1501 & R1508 Close to BAT conn
Ö»±£ÁôGPIO¿ØÖÆ·½Ê½
Max1.5A 5415E
Max2.25A 5425E
1A~2.5A ETA6937
R6107 C6103 C6106
56 mohm
47 mohm
0 ohm
1uf 25V
10uf 25V
1uf 25V
22uf 6.3V
22uf 6.3V
10uf 25 V
C6108
1uf 6.3V
2.2uf 6.3V
2.2uf 6.3V
R0306 R0307
0 ohm
0 ohm
0 ohm
NF
NF
NF
default
no OVP
OVP
OVP
¿âÂ׼Ƶç×èÐ޸ķâ×°£¬´óСº¸Å̼ä¾à0.1£¬²»×ö×躸
USB CHARGE/700mA
should afford 1A current
CLOSE TO Q1001
C6105
100nF
C6104
22uF
TB6100
R6105 510
C6102
470pF
R6106 NC R6104 47K
R6109
C6100
NC
R6102 0.02
¡ À1%
TB6102
TB6103
NC-TP-D1
D6101
SOD-323-2-2
R610110K
R6103 10K
C6106
10uF
L6101
1.0uH
C6103
1.0uF
A1
VBUS
B2
PMID
A4
SCL
C1
SW
D1
PGND
B1
PMID
C2
SW
D2
PGND
C3
SW
A2
VBUS
A3
BOOT
B3
PMID
B4
SDA
C4
ST AT
D3
PGND
D4
OTG
E1
CSIN
E2
CD
E3
VREF
E4
CSOUT
U6101
PSC5415E/5425E/ETA6937
C6108
1.0uF
C6107
33nF
C6109
100nF
C6110
100nF
C6111
22uF
C6101
100pF
12
S1S2
R61070.056
¡ À1%
TB6101
NC-TP-D1
R0306100
R0307NC
1
VBAT
2
ID
3
GND
4
GND
5
GND
6
GND
7
GND
J3
1
G
2
S
3
D
Q301
FET-N-2SK3019
R339 10K
1
C
3
C
4
B
5
E
6
C
8
C
2
C
7
C
Q1001
TRANSISTOR-PNP-PDFN3X2-8-NEW
R6110
200
R0304
100
C1330
1uF
R6108 NCR6112' NC
T
R6111
NTC-NC-0402
NC NTC
D2
SOD-323-2-2
BAT_TEMP_ADC
[6]
VDD1V85
VBAT_SENSE
[6,18]
SENSE_N
[6]
SENSE_P
[6]
VBAT
VCHG
[18,19]
VBAT
[6,8,9,14,15,16,18]
CHG_STAT
[11]
I2C4_SDA
[11,15]
I2C4_SCL
[11,15]
CHG_EN_GPIO32
[11]
VCHG_D
[6,18]
VCHG_OVP
[18]
VCHG_OVP
[18]
VCHG
[18,19]
VCHG
[18,19]
VDRV
[6]
VCHG_D
[6,18]
VCHG_D
ISENSE
[6]
VBAT_SENSE
[6,18]
CHARGE_TEMP_ADC
[5]
VDDRF_1V8