MAX1874ETE Maxim Integrated Products, MAX1874ETE Datasheet - Page 5

• Manufacturer Part Number: MAX1874ETE
• Description: Battery Management Dual-Input USB/AC Adapter 1-Cell Li+
• Manufacturer: Maxim Integrated Products

Specifications of MAX1874ETE

• Battery Type: Li-Ion, Li-Polymer
• Operating Supply Voltage: 4.35 V to 6.5 V
• Supply Current: 4 mA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Package / Case: TQFN-16
• Charge Safety Timers: No
• Mounting Style: SMD/SMT
• Temperature Monitoring: No

ELECTRICAL CHARACTERISTICS (continued)
(V
noted. Typical values are at T
Note 1: BYP internally connects to the active power input (DCLV or USB). DCLV takes priority if both inputs are powered.
Note 2: These limits guarantee +5°C accuracy with 5% accuracy of thermistor beta (3450 nominal) with 2°C of hysteresis.
Note 3: The CHG output does not go high unless charge current is below the indicated threshold (as set by DCI) and the charger is in
Note 4: Specifications to -40°C are guaranteed by design, not production tested.
BATTERY VOLTAGE
BATT Regulation Voltage
BATT Prequal Voltage Threshold
REF Voltage (Buffered Output)
BATTERY CHARGING AND PRECHARGE CURRENT
DCI Voltage Range
DCI Voltage to BATT Current
USB Charging Current
Prequal Charging Current
BATT Input Current
BATT Shutdown Current
THERMISTOR MONITOR AND DIE-TEMPERATURE REGULATION
THRM COLD Trip Level
THRM HOT Trip Level
THRM Disable Threshold
LOGIC INPUT/OUTPUTS AND GATE DRIVERS
DCOK Off-Leakage Current
UOK Off-Leakage Current
CHG Threshold to Indicate Battery Full,
Battery Current Falling (Note 3)
CHG Logic-Low Output
CHG Leakage Current
EN, USEL Logic-Input High Level
EN, USEL Logic-Input Low Level
EN, USEL Input Bias Current
USB
Li+ Charger with OVP and Thermal Regulation
= V
voltage-mode operation. In 100mA USB mode, CHG goes high when the charger transitions from current to voltage mode.
DC
= V
PARAMETER
DCLV
_______________________________________________________________________________________
= V
EN
= V
A
= +25°C.) (Note 4)
USEL
Dual-Input, USB/AC Adapter, 1-Cell
= 5V, V
BATT rising
I
does not affect BATT regulation accuracy
V
V
USEL = high
USEL = low
V
No DC or USB power, V
EN = GND, USB and/or DC powered
(Note 2)
(Note 2)
V
V
DC input (% of charge current set at DCI)
USB input, USEL = 5V
(% of USB charging current)
Sinking 10mA sink
V
REF
DCI
DCI
BATT
DCOK
UOK
CHG
BATT
= 0 to 500µA, 4V < V
= V
= V
= 6.5V
= 6.5V
= 2.5V
= 4.2V, V
= 12V, V
REF
REF
/ 2
DC
THRM
CONDITIONS
= 0V
= V
BATT
DC
REF
or V
= 4.2V
/ 2, Circuit of Figure 2, T
USB
< 6.5V;
4.1685
0.1 x V
A
2.94
0.72
0.28
MIN
930
490
2.8
1.6
40
50
20
= -40°C to +85°C, unless otherwise
8
REF
TYP
4.2315
MAX
V
1070
3.06
0.76
0.30
565
495
150
3.2
7.5
0.4
0.4
95
70
20
30
REF
2
1
1
1
1
UNITS
V
V
mA
mA
mA
mV
µA
µA
µA
µA
µA
µA
REF
REF
%
V
V
V
V
V
V
V
5