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L6924UTR Datasheet(PDF) 5 Page - STMicroelectronics

No. de pieza L6924UTR
Descripción Electrónicos  USB compatible battery charger system with integrated power switch for Li-Ion/Li-Polymer
PDF  37 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6924UTR Datasheet(HTML) 5 Page - STMicroelectronics

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L6924U
Pin description
Doc ID 14716 Rev 2
5/37
2
Pin description
Figure 3.
Pin connection (top view)
2.1
Pin description
Table 2.
Pin functions
Pin
I/O
Name
Pin description
1I
VIN
Input pin of the power stage.
2I
VINSNS
Supply voltage pin of the signal circuitry.
The operating input voltage ranges from 2.5 V to 12 V, and the
start-up threshold is 4 V.
3 - 4
O
ST2-ST1 Open-collector status pins.
5I
TPRG
Maximum charging time program pin.
It must be connected with a capacitor to GND to fix the maximum
charging time, see Chapter 7.7: Maximum charging time on
page 21.
6
-
GND
Ground pin.
7I
SD
Shutdown pin.
When connected to GND enables the device; when floating
disables the device.
8I
TH
Temperature monitor pin.
It must be connected to a resistor divider including an NTC or PTC
resistor. The charge process is disabled if the battery temperature
(sensed through the NTC or PTC) is out of the programmable
temperature window see Chapter 8.1: NTC thermistor on page 23.



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