MAX8677AETG+ Maxim Integrated Products, MAX8677AETG+ Datasheet - Page 11

• Manufacturer Part Number: MAX8677AETG+
• Description: IC USB/AC ADP CHARGER 24-TQFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX8677AETG+

• Function: Charge Management
• Battery Type: Lithium-Ion (Li-Ion)
• Voltage - Supply: 4.1 V ~ 6.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-TQFN Exposed Pad
• Operating Supply Voltage: 4.1 V to 6.6 V
• Supply Current: 1 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Charge Safety Timers: Yes
• Mounting Style: SMD/SMT
• Temperature Monitoring: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

for two-input or single-input operation. Figure 2 is the
typical application circuit using separate DC and USB
connectors. Figure 3 is the typical application circuit
using a Mini 5-style connector or other DC/USB com-
mon connector.
In addition to charging the battery, the MAX8677A also
supplies power to the system through the SYS output.
Figure 2. Typical Application Circuit Using Separate DC and USB Connectors
CHARGE ON
ADAPTER
1.5A Dual-Input USB/AC Adapter Charger
______________________________________________________________________________________
100mA
OFF
CHARGE
10kΩ
500mA
4.7μF
DONE
C
0.068μF
DC
R
R
0.1μF
PSET
ISET
560kΩ
C
C
R
L
T
PU
NTC
10kΩ
+25°C
10
11
12
1
2
3
4
5
6
7
8
9
DONE
DC
DC
CEN
PEN1
PEN2
PSET
VL
GND
CT
ISET
THM
MAX8677A
and Smart Power Selector
USUS
TSET
The charging current is also provided from SYS so that
the set input current limit controls the total SYS current,
which is the sum of the system load current and the
battery-charging current. SYS is powered from either
the DC input pin or the USB input pin. If both the DC
and USB are connected, DC takes precedence.
CHG
UOK
DOK
SYS 21
SYS 20
USB 16
USB 15
BAT 18
BAT 17
FLT
24
23
22
19
14
13
3X 560kΩ
R
PU
USB SUSPEND
C
10μF
C
4.7μF
C
4.7μF
SYS
BAT
USB
560kΩ
TO VL: I
OPEN: I
GND: I
TO VL
FAULT
OUTPUT
USB PWR
OK
DC PWR
OK
TO SYSTEM
LOAD
TO VL
CHARGE
INDICATOR
TERM
1-CELL
Li+
TERM
TERM
= 5%
= 10%
= 15%
USB
VBUS
GND
11