SY6990 Datasheet PDF Download, Silergy





(PDF) SY6990 Datasheet Download

Part Number SY6990
Description Bi-directional Regulator
Manufacture Silergy
Total Page 20 Pages
PDF Download Download SY6990 Datasheet PDF

Features: Application Notes: AN_SY6990 Wide Input, High current, Bi-directional Regulator for Single Cell Li-Ion Battery Power B ank Application Advanced Design Specifi cation General Description SY6990 is a 4.0-13.5V input, bi-directional regul ator for Li-Ion battery power bank appl ication. Advanced bi-directional energy flow control with automatic input powe r source detection is adopted to achiev e battery charging mode and battery pow er supply mode alternately. If the exte rnal power supply is present, SY6990 ru ns in battery charging mode with fully protection function. If the external po wer supply is absent, SY6990 runs in ba ttery power supply mode with output cur rent capability up to 3A. SY6990 has a n integrated reverse blocking switch to prevent from current leaking from the system side or battery side to the inpu t side and an integrated linear switch to achieve over voltage/current protect ion at the system side. A half bridge w ith quasi-fixed 0.5MHz switching frequency is integrated to ach.

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Application Notes: AN_SY6990
Wide Input, High current, Bi-directional Regulator
for Single Cell Li-Ion Battery Power Bank Application
Advanced Design Specification
General Description
SY6990 is a 4.0-13.5V input, bi-directional regulator
for Li-Ion battery power bank application. Advanced
bi-directional energy flow control with automatic input
power source detection is adopted to achieve battery
charging mode and battery power supply mode
alternately. If the external power supply is present,
SY6990 runs in battery charging mode with fully
protection function. If the external power supply is
absent, SY6990 runs in battery power supply mode
with output current capability up to 3A.
SY6990 has an integrated reverse blocking switch to
prevent from current leaking from the system side or
battery side to the input side and an integrated linear
switch to achieve over voltage/current protection at the
system side. A half bridge with quasi-fixed 0.5MHz
switching frequency is integrated to achieve power
conversion for battery charging mode and battery
power supply mode. All of them adopt N-channel
MOSFETs with 16V rating and extremely low RDS(ON)
to optimize operation efficiency and extend battery
life-time.
SY6990 is available in QFN4x4 package to minimize
the PCB layout size for wide portable applications.
Ordering Information
SY6990 ( )
□ □□ □
Temperature Code
Package Code
Optional Spec Code
Ordering Number Package type
SY6990QCC
QFN4x4-24
Note
Features
Integrated N-Channel MOSFETs with 16V
Voltage Rating and Extremely Low RDS(ON)
High Switching Frequency to Minimize
Peripheral Circuit Design
Trickle Current / Constant Current / Constant
Voltage Charging Mode
Maximum 5A Battery Charging Current
Maximum 3A System current in Battery power
supplement mode
USB Port Identifier for Various Input Current
Limit
Automatic Input Power Source Detection
I2C Controls
Selectable Battery Charge Voltage
Programmable Constant Current Charging
Programmable Over Current Limit for SYS
load
Programmable Battery Charging Timeout
Programmable Input Current DPM
Programmable Input Voltage DPM
Charging Shutdown Control
Charging Mode CV Tolerance +/-0.5%
DO+/DO- Divider Mode Compliant
Host Enable Control for Standby Mode
Over Temperature Protection
Charge Status Indication
Light load Status Indication
Supply System by both Adapter and Battery in
Supplement mode
Applications
Single cell Li-Ion Power Bank
Portable device with 1-cell battery pack
AN_SY6990Rev0.0 Silergy Corp. Confidential- Prepared for Customer Use Only
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