MAX8671XETL+ Maxim Integrated Products, MAX8671XETL+ Datasheet - Page 37

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MAX8671XETL+

Manufacturer Part Number
MAX8671XETL+
Description
IC PMIC W/CHARGER 40-TQFN
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX8671XETL+

Function
Charge Management
Battery Type
Lithium-Ion (Li-Ion), Lithium-Polymer (Li-Pol)
Voltage - Supply
4.1 V ~ 6.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
40-WFQFN Exposed Pad
Mounting Style
SMD/SMT
Input Voltage
2.6 V to 6.6 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Output Current
0.5 A
Output Voltage
0.6 V to 5 V
Supply Current
0.285 mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The VL regulator is not controlled by EN. It is powered
from the higher of USB or DC and automatically powers
up when either of the power inputs exceeds approxi-
mately 1.5V. Similarly, VL automatically powers down
when both the USB and DC power inputs are removed.
The MAX8671X implements soft-start on many levels to
control inrush current, to avoid collapsing supply volt-
Figure 12. Enable and Disable Waveforms
Smart Power Selector for Handheld Devices
V
V
UOK
V
V
V
V
V
V
V
DOK
USB
V
OUT1
OUT2
V
SYS
V
OUT3
OUT4
OUT5
VL
DC
EN
HIGH-Z
______________________________________________________________________________________
V
BAT
HIGH-Z
Soft-Start/Inrush Current
PMIC with Integrated Charger and
t
SS3
t
D2
t
t
SS2
SS1
t
D1
t
D3
V
t
BAT
SS4
< V
SYS
t
SS5
< (V
USB
OR V
DC
)
ages, and to fully comply with the USB 2.0 specifica-
tions. All USB, DC, and charging functions implement
soft-start. The USB and DC nodes only require 4.7µF of
input capacitance. Furthermore, all regulators imple-
ment soft-start to avoid transient overload of power
inputs (Figure 12).
INTERNAL
DISCHARGE
RESISTORS
HIGH-Z
HIGH-Z
V
BAT
37

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