TS52002 Datasheet, PDF (1/14 Pages) List of Unclassifed Manufacturers – High Efficiency NiMH Battery Charger for Photovoltaic Sources

TS52002
Version 1.2
High Efficiency NiMH Battery Charger for Photovoltaic Sources
DESCRIPTION
The TS52002 is a DC/DC synchronous switching
MPPT Regulator with fully integrated power
switches, internal compensation, and full fault
protection. The TS52002 utilizes a temperature-
independent photovoltaic Maximum Power Point
Tracking (MPPT-Lite™) calculator to optimize
power output from the source. The switching
frequency of 1MHz enables the use of small filter
components, resulting in smaller board space and
reduced BOM costs.
APPLICATIONS
 1-cell and 2-cell NiMH chargers
 Portable solar chargers
 Off-grid systems
 Wireless sensor networks
 Smoke detectors
 HVAC controls
FEATURES
 Utilizes a temperature-independent
PV MPPT-Lite™ regulation scheme
 V_BAT reverse current blocking
 Up to 1.5A continuous output current
 High efficiency – up to 92% at typical load
 Current mode PWM control in constant voltage
 Input supply under-voltage lockout
 Full protection for VBAT over-voltage
 Device over-current and over-temperature protection
 I2C status interface
 VBAT status indication
SUMMARY SPECIFICATION
 Wide Input Voltage Range: 3.2V to 7.2V
 Packaged in a 16pin QFN (4x4)
TYPICAL APPLICATION
Photovoltaic Cells
VIN
CIN
TS52002
GND
CVdd
VDD
SW
LOUT
RSENSE
COUT
VDD
RPULLUP
(optional)
SCL
SDA
V_SENSE
V_BAT
EN
nFLT
PGND
VDD
RPULLUP
(optional)
µC
NiMH – 1 or 2 cells
Series or Parallel
Specifications subject to change
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