TS52003 Datasheet, PDF (1/16 Pages) List of Unclassifed Manufacturers – High Efficiency SuperCap Charger for Photovoltaic Sources

TS52003
Version 1.2
High Efficiency SuperCap Charger for Photovoltaic Sources
DESCRIPTION
The TS52003 is a DC/DC synchronous switching
Super Capacitor Charger with fully integrated power
switches, internal compensation, and full fault
protection. The TS52003 utilizes a temperature-
independent photovoltaic Maximum Power Point
Tracking (MPPT-Lite™) calculator to optimize power
output from the source during Full-Charge mode.
The switching frequency of 1MHz enables the use of
small filter components, which result in smaller board
space and reduced BOM costs.
In Full-Charge mode the duty cycle is controlled by
the MPPT-Lite™ regulator. Once termination voltage
is reached, the regulator operates in voltage mode.
When the regulator is disabled (EN is low), the device
draws less than 15uA quiescent current from V_OUT.
The TS52003 integrates a wide range of protection
circuitry; including input supply under-voltage
lockout, output over-voltage protection, current limit,
and thermal shutdown.
The TS52003 includes supervisory reporting through
the nFLT (Inverted Fault) open drain output to
interface other components in the system. Device
programming is achieved by an I²C interface through
SCL and SDA pins.
FEATURES
 Utilizes a temperature-independent PV MPPT-Lite™
regulation scheme
 VOUT reverse current blocking
 Wide input voltage range: 3.2V to 7.2V
 Up to 1.5A continuous output current
 Programmable temperature-compensated termination
voltage with a ± 1% tolerance
 User programmable termination voltage
 High efficiency – up to 92% at typical load
 Current mode PWM control in constant voltage
 Input supply under voltage lockout
 Full protection for V_OUT over-voltage
 Device over-current and over-temperature protection
 I2C program interface with EEPROM registers
 V_OUT reverse current blocking
 Charge status indication
SUMMARY SPECIFICATIONS
 Packaged in a 16pin QFN (4x4)
APPLICATIONS
 Off-grid systems
 Wireless sensor networks
 Smoke detectors
 HVAC controls
TYPICAL APPLICATION
Photovoltaic Cells
CIN
CVdd
VDD
RPULLUP
(optional)
VIN
TS52003
GND
VDD
SW
SCL
V_SENSE
SDA
VOUT
EN
nFLT
PGND
LOUT
RSENSE
VDD
RPULLUP
(optional)
COUT
Super Cap
Specifications subject to change
WWW.TRIUNESYSTEMS.COM
-1-
Copyright © 2011, Triune Systems, LLC