STLED325QTR STMicroelectronics, STLED325QTR Datasheet - Page 44

• 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

Commands
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001: Philips RC-6 (optional only enabled for Philips)
010: Philips RC-5
011: Philips RCMM
100: NEC
101: R-STEP
110: Thomson R2000
111: Thomson RCA
When b7=‘0’, incoming RC data is output on SDA in decoded format where the Device
Address, Start Bit, Toggle Bit and Data Bits are sent. Note that the default location is 0x00
for the first device address. This order of the bits sent is in the same format as the incoming
RC data.
When b7=‘1’, incoming raw data (no header information) is output on SDA.
Address decoding is still performed to decode the corresponding RC protocol. The format of
the data on SDA corresponds to the format of the respective RC frame.
For details, refer to the RC protocol section of the datasheet.
GUARD TIMER SETTING (bits b3-b0)
0000: Turned off (guard timer disabled)
0001: 1 seconds
0010: 2 seconds
1111: 15 seconds
The second byte after the configuration command is in the following format:
7-Segment display mode setting (bits b1-b0)
00: 1 digit, 8 segments (Digit 1 pin output is enabled)
01: 2 digits, 8 segments (Digit 1 and Digit 2 pin outputs are enabled)
10: 3 digits, 8 segments (Digit 1, Digit 2 and Digit 3 outputs are enabled)
11: 4 digits, 8 segments (Digit 1, Digit 2, Digit 3 and Digit 4 outputs are enabled)
b2: configuration for the digital outputs of the chip
b2 = 1 will enable the outputs of the chip to be push pull type to 1.8V
b2 = 0 will enable the outputs of the chip to be open-drain (can be externally pulled up to
3.3V)
b3: configuration for the GPIO0
MSB
b7
b6
b5
Doc ID 17576 Rev 1
b4
b3
b2
b1
STLED325
LSB
b0