STCF02 STMicroelectronics, STCF02 Datasheet - Page 4

• Manufacturer Part Number: STCF02
• Description: HIGH POWER WHITE LED DRIVER
• Manufacturer: STMicroelectronics

Specifications of STCF02

• Drives One Power White Led: up to 600mA between 2.7 to 4.5V
• Torch Mode: up to 250 mA

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