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DIOO MICROCIRCUITS

DIO59015 Datasheet Preview

DIO59015 Datasheet

USB-Compliant Single-cell Li-Ion Switching Charger

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Rev 1.5
DIO59015
USB-Compliant Single-cell Li-Ion Switching Charger with
USB-OTG Boost Regulator
Features
Fully Integrated, High-Efficiency Charger for
Single-Cell Li-Ion and Li-Polymer Battery
Packs
Faster Charging than Linear
Charge Voltage Accuracy: 0.5% at 25°C 1%
from 0 to 125°C
±7% Input Current Regulation Accuracy
±7% Charge Current Regulation Accuracy
26V Absolute Maximum Input Voltage
6V Maximum Input Operating Voltage
1.5A Maximum Charge Rate
Programmable through High-Speed I2C
Interface(3.4Mb/s) with Fast Mode Plus
Compatibility
Input Current
Fast-Charge/Termination Current
Charger Voltage
Recharge Voltage
Termination Enable
2MHz Synchronous Buck PWM Controller
with Wide Duty Cycle Range
Small Footprint 1μH External Inductor
1.8V Regulated Output from VBUS for
Auxiliary Circuits
Dynamic Input Voltage Control
Low Reverse Leakage to Prevent Battery
Drain to VBUS
5V, 600mA Boost Mode for USB OTG for 3.2V
to 4.5V Battery Input
Available in TQFN3*3-16, DFN3*3-12
Packages.
Descriptions
The DIO59015 combines a highly integrated
switch-mode charger, to minimize single-cell
Lithium-ion (Li-ion) charging time from a USB
power source, and a boost regulator to power a
USB peripheral from the battery.
The charging parameters and operating modes
are programmable through an I2C Interface that
operates up to 3.4Mbps. The charger and boost
regulator circuits switch at 2MHz to minimize the
size of external passive components.
The DIO59015 provides battery charging in three
phases: conditioning, constant current and
constant voltage.
To ensure USB compliance and minimize
charging time, the input current limit can be
changed through the I2C by the host processor.
Charge termination is determined by a
programmable minimum current level.
The integrated circuit (IC) automatically restarts
the charge cycle when the battery falls below an
internal threshold. If the input source is removed,
the IC enters a high-impedance mode, preventing
leakage from the battery to the input. Charge
current is reduced when the die temperature
reaches 120°C, protecting the device and PCB
from damage.
The DIO59015 can operate as a boost regulator on
command from the system. The boost regulator
includes a soft-start that limits inrush current
from the battery and uses the same external
components used for charging the battery.
Applications
Cell Phones, Smart Phones, PDAs
Tablet, Portable Media Players
Gaming Device, Digital Cameras
www.dioo.com
1 © 2018 DIOO MICROCIRCUITS CO., LTD
DIO59015• Rev. 1.5




DIOO MICROCIRCUITS

DIO59015 Datasheet Preview

DIO59015 Datasheet

USB-Compliant Single-cell Li-Ion Switching Charger

No Preview Available !

Ordering Information
Order Part
Number
DIO59015CL16
DIO59015CD12
Top Marking
59015
59015
Green
Green
Rev 1.5
TA
-40 to 85°C
-40 to 85°C
Package
TQFN-16
DFN3*3-12
Tape & Reel, 5000
Tape & Reel, 5000
Pin Assignments
DFN3*3-12
TQFN3*3-16
Figure 1. Pin Assignment (Top View)
www.dioo.com
2 © 2018 DIOO MICROCIRCUITS CO., LTD
DIO59015• Rev. 1.5


Part Number DIO59015
Description USB-Compliant Single-cell Li-Ion Switching Charger
Maker DIOO MICROCIRCUITS
Total Page 30 Pages
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