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PDF TJ1052 Data sheet ( Hoja de datos )
| Número de pieza | TJ1052 | |
| Descripción | CONSTANT VOLTAGE & CONSTANT CURRENT CONTROLLER | |
| Fabricantes | HTC Korea | |
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CONSTANT VOLTAGE & CONSTANT CURRENT CONTROLLER TJ1052
FEATURES
z Constant Voltage and Constant Current Control
z Low Voltage Operation
z Precision Internal Component Count
z Current Sink Output Stage
z Easy Compensation
z Low AC Mains Voltage Rejection
z Moisture Sensitivity Level 3
SOT-23 6L
APPLICATION
z Battery Chargers
z Adapters
ORDERING INFORMATION
Device
TJ1052SF6
TJ1052GSF6
Package
SOT-23 6L
DESCRIPTION
TJ1052 is a highly integrated solution for SMPS applications requiring constant voltage and constant current
mode. TJ1052 integrates one voltage reference, two operational amplifiers (with one output - common
collectors), and a current sensing circuit. The voltage reference combined with one operational amplifier makes
it an ideal voltage controller, and the other low voltage reference combined with the other operational amplifier
makes it an ideal current limiter for output low side current sensing. The current threshold is fixed and precise.
The only external components are :
z A resistor bridge to be connected to the output of the power supply (adaptor, battery charger) to set the
voltage regulation by dividing the desired output voltage to match the internal voltage reference value.
z A sense resistor having a value and allowable dissipation power which need to be chosen according to the
internal voltage threshold.
TJ1052 is ideal for space shrunk applications such as adapters and battery chargers.
Absolute Maximum Ratings
(TA = 25℃, unless otherwise specified)
CHARACTERISTIC
DC Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Maximum Junction Temperature
SYMBOL
VCC
VIN
TOPR
TJ
MIN.
-
-0.3
0
-
MAX.
20
VCC
85
150
UNIT
V
V
℃
℃
Operating Conditions (TA=25℃)
CHARACTERISTIC
DC Supply Voltage
SYMBOL
VCC
MIN.
2.5
MAX.
18
UNIT
V
Jul. 2010 – Preliminary
-1-
HTC
Free Datasheet http://www.datasheet4u.com/
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet TJ1052.PDF ] | |
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