STLED325QTR STMicroelectronics, STLED325QTR Datasheet - Page 32

• Manufacturer Part Number: STLED325QTR
• Description: LED Lighting Drivers I2C interfaced LED controller/driver
• Manufacturer: STMicroelectronics

Specifications of STLED325QTR

• Product Category: LED Lighting Drivers
• Rohs: yes
• Input Voltage: 5 V
• Maximum Supply Current: 2 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32
• Minimum Operating Temperature: - 40 C
• Power Dissipation: 1200 mW

Functional description
32/62
Table 9.
Pin number
10 - 13
17 - 24
15, 16
EPAD
14
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
Pin description
DIG4 –DIG1
KEY2-KEY1
WAKE_UP
SEG8/KS8
SEG1/KS1
Symbol
READY
IRQ_N
GPIO0
GPIO1
MUTE
VREG
XOUT
STBY
IR_IN
VBAT
DIG5
ISET
GND
SDA
VCC
SCL
XIN
to
IN/OUT
IN/OUT
IN/OUT
Output
Doc ID 17576 Rev 1
PWR
PWR
Type
Input
Input
OUT
OUT
OUT
OUT
OUT
OUT
OUT
IN
IN
IN
IN
IN
IN
Output from the STLED325 to gracefully mute the audio
before entering standby mode
Interrupt output (active low level type) to interrupt the
MCU under various conditions
GPIO0 that can be configured as an input or output
GPIO1 that can be configured as an input or output
Remote control data input
I
I
Wake-up pin (can be used for wake-up on detecting a low
to high transition). AV wake-up or CEC wake-up.
Digit output pin. Can be used in conjunction with 8
segment outputs to control 8 discrete LEDs on the front
panel.
Digit output pins
5.0 V ± 10% main supply voltage. Bypass to GND
through a 0.1 µF capacitor as close to the pin as
possible.
Input data to these pins from external keyboard are
latched at end of the display cycle (maximum keyboard
size is 8 x 2). 5V digital input.
Segment output pins (dual function as key source)
Current sense input. Connect resistor to ground to set
constant current through LEDs. Connect to GND through
a resistor to set the peak segment current.
Battery power supply for the RTC when there is no
supply to the chip
1.8V regulator output. Connect to an external capacitor.
Connect this pin to system GND
Connect to an external crystal or apply external clock
Output of the external crystal. Open when external clock
Hardware pin to control the power to the Host
Input to the device from the Host to indicate that Host is
ready
Exposed pad. Connect to PCB GND.
2
2
C compatible serial data I/O
C compatible serial clock input
Name and function
STLED325