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STCF02PNR データシート(PDF) 4 Page - STMicroelectronics

部品番号 STCF02PNR
部品情報  High power white led driver
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STCF02PNR データシート(HTML) 4 Page - STMicroelectronics

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Pin connections
STCF02
4/19
2
Pin connections
Table 2.
Pin description
Figure 2.
Pin configuration (bottom view)
Pln N°
Symbol
Name and function
Note
1
VLX2
Inductor connection
External coil is connected between this pin and VLX1. It should be
placed as close as possible to the device in order to minimize
resistance which cause losses.
2
RX
Rx Resistor connection
Rx resistor is connected between this pin and ground to set LED over
temperature threshold.
3
VO
Output voltage
Anode of the LED is connected to this pin.
4
NTC
NTC Resistor connection
This pin is used for the LED temperature sensing using an external
NTC resistor.
5FB1
Feedback pin for torch
mode
This pin is used for current sensing in Torch mode – Cathode of the
Flash LED and RTorch resistor are connected to this pin.
6RTBY
RTORCH Bypass
This pin is used to short-circuit the RTORCH during FLASH and
MIDDLE FLASH MODE.
7FB2
Feedback pin for flash
mode
This pin is used to sense the voltage across RFLASH. It must be
directly connected to the non-grounded terminal of RFLASH.
8, 10
GND
Signal ground
This is the signal ground pin related to digital and analog signals and
must be connected as close as possible to the sensing resistor.
9COM1
Compensation
connection
Optional external compensation should be connected to these pins.
11
COM2
Compensation
connection
Optional external compensation should be connected to these pins.
12
VBAT
Supply voltage
Supply pin of the device.
13
PVBAT
Power supply voltage
Power supply pin of the device.
14
VLX1A
Inductor connection
External coil is connected between these pins and VLX2. They should
be placed as close as possible to the device in order to minimize
resistance which causes losses. It is mandatory to connect VLX1A
and VLX1B together.
15
VLX1B
16
EN3
Enable Pin 3
Digital input that allows selection of the operational modes of the
device (refer to truth table).
17
EN2
Enable Pin 2
Digital input that allows selection of the operational modes of the
device (refer to truth table).


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