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Canaan Technology Launches New Avalon A13 Series Bitcoin Miners

Canaan Technology Launches New Avalon A13 Series Bitcoin Miners According to the latest news, Canaan Technology announced the launch of the new Bitcoin miner Avalon Made A13 series, including Avalon A1346 and Avalon A1366. Canaan Technology said that the new generation of miners uses advanced ASIC technology, and the A13 series will include two different models. Compared with the 90 to 100TH/s hash rate offered by the A12 series, the A13 series has both hash rate, and energy efficiency has been enhanced. Canaan's CEO said the all-new A13 is a milestone in the company's over-computational energy consumption analysis. The model A1346 has a hash rate of 110 TH/s and an energy efficiency of 30J/TH. Model A1366 has a hash rate of 130TH/s and an energy efficiency of 25J/TH. Comparing the energy efficiency ratio of Bitmain's flagship S19 XP of 21.5 J/TH with that of Bitmain's M50S of 0.026j/Gh, the new series of A1346 is "very competitive" in terms of efficiency at

What is the difference between the chips of different Antminer L3+ hash board versions?

What is the difference between the chips of different Antminer L3+ hash board versions?

Antminer L3+ is a relatively old miner, and the chip types on different versions of the hash board are also different, so what are the same and different chips on the L3+ V1.6.1 version hash board and V1.413 version hash board? Through this article, let's find out together!

V1.6.1 version and V1.413 version hash board the same chip:

1) BM1485 ASIC chip
Antminer L3+ is one of the few miners with 4 built-in hash boards. A single hash board has 72 BM1485 ASIC chips, and the whole miner has 288 chips. Each chip has an independent small heat sink on the back. After the initial test of the board, the small heat sink on the back is fixed on the back of the IC with a thermosetting adhesive. After the repair and replacement of the chip has passed the test, it is necessary to apply the thermosetting adhesive evenly on the surface of the IC and heat it to fix it.
V1.6.1 version BM1485 ASIC chip
V1.413 version BM1485 ASIC chip
2) TPHR9003NL
The MOS chip TPHR9003NL is mainly used to check the voltage output in the voltage domain. By measuring the output of the power supply terminal of the hash board, it can judge whether the MOS is short-circuited. In the case of unstable voltage, lightning surges will cause MOS damage.
V1.6.1 version TPHR9003NL location
V1.413 version MOS chip TPHR9003NL
3) G49IC
G49IC 1.8V is a voltage domain voltage regulator chip. It adopts SOT23-5 needle tube packaging technology. It is mainly used for the maintenance of the Antminer L3+ hash board.
V1.6.1 version G49IC chip location
V1.413 version voltage regulator chip
4) T451 Temperature sensor chip
T451 temperature sensor chip adopts WSON-8 packaging technology, mainly used to sense the temperature of the hash board. If the temperature sensor chip is damaged, it will cause abnormal temperature readings. If the temperature of the temperature sensor chip is too low, the hash board will not start, or if the temperature is too high, the miner will stop running.
V1.6.1 version T451 Temperature sensor chip
V1.413 version T451 temperature sensor chip

The different chips of the V1.6.1 version and the V1.413 version of the hash board:

V1.413 version of the hash board chip:
1) SGM3750
The SGM3750 is a 650kHz boost converter for driving series LEDs. The chip adopts green TDFN-2×2-6L packaging technology; the operating temperature range is between -40°C to +85°C, and the operating voltage is between 2.7V and 20V. In addition, the chip has built-in LED open circuit protection, which can effectively prevent the chip from being damaged due to overvoltage under an LED open circuit.
SGM3750 boost converter chip
2) PIC16F1704
PIC16F1704 is a 14-pin 8-bit microcontroller, mainly used to check PIC circuits. When the PIC pin voltage does not reach the standard value, you can re-program the PIC by checking whether the connection between the test fixture cable and the hash board is normal.
PIC16F1704 microcontroller chip
3) M4JD
According to the analysis of the maintenance personnel, by replacing the faulty M4JD chip with the working 4VK4, the hash board can work normally. Therefore, we can speculate that M4JD and 4VK4 have the same function; both are voltage regulators, the output voltage is between 1.0V~5.0V, and the maximum output current is 300mA.
M4JD voltage regulators chip
V1.6.1 version of the hash board chip:
1) TPS61161DRV
TPS61161DRV is an LED driver chip in the SON-6 package.
BZR TPS61161DRV chip
2) PIC16F1705
The PIC16F1705 is an advanced analog flash microcontroller chip that combines intelligent analog integration with low cost and very low power (XLP) for various general purpose applications. Operating from 2.3V to 5.5V, the 14-pin devices provide on-chip op amps, core independent peripherals (CLC and COG), peripheral pin select, and zero-crossing detection for increased design flexibility.
PIC16F1705 chip
3) UP9305W
UP9305W is a hash board PWM power supply chip, SMD SOP-8.
UP9305W chip

Easily damaged parts of Antminer L3+ hash board introduction:

This video uses the V1.2 version of the hash board as a detailed description of the vulnerable parts, and other versions of the hash board can be used for reference.

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