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What are the differences between Antminer L3+ hash board V1.6.1 version and the V1.413 version?

Earlier, we introduced the chip of the Antminer L3+ V1.413 version of the hash board. Today, let's learn about the L3+ V1.6.1 version of the hash board chip. What are the differences between them?

The same chips of L3+ V1.61 and L3+ V1.413 are:

BM1485 ASIC chip

BM1485 ASIC chip

The L3+ hash board has 72 built-in BM1485 ASIC chips, and each chip has an independent small heat sink on the back. The small heat sink on the back is fixed to the back of the IC with 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.

TPHR9003NL

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.

U85: G49IC

G49HH chip

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.

U88: Temperature sensor chip T451

Temperature sensor chip T451

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.

The different chips of L3+ V1.61 and L3+ V1.413 are:

U111: BZR TPS61161DRV

BZR TPS61161DRV chip

TPS61161DRV is an LED driver chip in the SON-6 package.

U74: PIC16F1705

PIC16F1705 chip

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.

U200: UP9305W

UP9305W chip

UP9305W is a hash board PWM power supply chip, SMD SOP-8.

Antminer L3+ V1.6.1 hash board chip summary:

L3+ V1.61 hash board chip summary

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