2 layers43 × 43 mm
TurboCAN
henrikssn/TurboCAN
This is the official repository for the TurboCAN controller board, designed specifically for the Voron AfterBurner toolhead but can also be used on similar toolheads using NEMA17 steppers.
88 parts82
Overview
The TPS54331D is a DC DC Converter made by Texas Instruments in a SOIC-8 package with 9 pins. -40℃~+150℃@(TJ) 1 110uA 3.5V~28V 3A 570kHz 800mV~25V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHS.
PCBKit's library has its KiCad symbol (freetronics_schematic:TPS54331, from Freetronics) and its footprint (freetronics_footprints:SO8_WITH_EP, from Freetronics), ready for a KiCad board. 390,146 are in stock at JLCPCB (part C9865). 48 open-source boards in 41 repositories on GitHub use it.
Symbol
Footprint
From the datasheet
13- Supply, least
- 3.5 V · VIN, recommended operating minimum · p. 4
- Supply, most
- 28 V · VIN, recommended operating maximum · p. 4
- Supply, absolute maximum
- 30 V · VIN, absolute maximum · p. 4
- Junction, hottest
- 150 °C · Operating junction temperature maximum · p. 4
- Takes working
- 110 µA · VIN typical non-switching supply current, VSENSE = 0.85 V · p. 5
- Takes asleep
- 1 µA · VIN typical shutdown current, EN = 0 V, VIN = 12 V, –40°C to 85°C · p. 5
- Gives
- 3 A · Maximum continuous output current · p. 9
- Current limit
- 5.8 A · Typical current-limit threshold, VIN = 12 V · p. 5
- Feedback reference
- 800 mV · Typical voltage reference · p. 5
- Switches at
- 570 kHz · Typical switching frequency, VIN = 12 V, 25°C · p. 6
- Junction to air (D)
- 116.3 K/W · Junction-to-ambient thermal resistance · p. 5
- Junction to board (D)
- 57.1 K/W · Junction-to-board thermal resistance · p. 5
- Junction to case (D)
- 53.7 K/W · Junction-to-case (top) thermal resistance · p. 5
What it is and has
8- Converter
- 28-V, 3-A step-down buck converter with integrated high-side n-channel MOSFET · p. 9
- Output voltage
- Adjustable down to 0.8 V · p. 1
- Switching frequency
- Fixed 570 kHz · p. 9
- Light-load operation
- Pulse skipping Eco-mode · p. 13
- Protection
- Frequency foldback and thermal shutdown · p. 9
- Protection
- Overvoltage transient protection · p. 13
- Slow start
- Externally programmable, 1 ms to 10 ms · p. 11
- Voltage reference accuracy
- ±2% initial, ±3.5% over temperature · p. 10
Around it
2- cap 0.1-μF
- between BOOT and PH; Required ceramic bootstrap capacitor; X7R or X5R dielectric recommended. · p. 10
- cap must not exceed 27 nF
- between SS and GND; External slow-start capacitor CSS; set slow-start time between 1 ms and 10 ms. · p. 11
Specifications
49| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Input voltage VIN | Over operating free-air temperature range | min -0.3 · max 30 V | 4 |
| Input voltage EN | Over operating free-air temperature range | min -0.3 · max 6 V | 4 |
| Input voltage BOOT | Over operating free-air temperature range | max 38 V | 4 |
| Input voltage VSENSE | Over operating free-air temperature range | min -0.3 · max 3 V | 4 |
| Input voltage COMP | Over operating free-air temperature range | min -0.3 · max 3 V | 4 |
| Input voltage SS | Over operating free-air temperature range | min -0.3 · max 3 V | 4 |
| Input voltage BOOT-PH | Over operating free-air temperature range | max 8 V | 4 |
| Output voltage PH | Over operating free-air temperature range | min -0.6 · max 30 V | 4 |
| Output voltage PH | 10-ns transient from ground to negative peak | max -5 V | 4 |
| Source current EN | max 100 uA | 4 | |
| Source current BOOT | max 100 mA | 4 | |
| Source current VSENSE | max 10 uA | 4 | |
| Source current PH | max 9 A | 4 | |
| Sink current VIN | max 9 A | 4 | |
| Sink current COMP | max 100 uA | 4 | |
| Sink current SS | max 200 uA | 4 | |
| Operating junction temperature TJ | min -40 · max 150 °C | 4 | |
| Storage temperature range Tstg | min -65 · max 150 °C | 4 | |
| Electrostatic discharge V(ESD) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins | min -2 · max 2 kV | 4 |
| Electrostatic discharge V(ESD) | Charged device model (CDM), per JEDEC specification JESD22-C101, all pins | min -500 · max 500 V | 4 |
| Operating input voltage on (VIN pin) | Over operating free-air temperature range | min 3.5 · max 28 V | 4 |
| Operating junction temperature TJ | min -40 · max 150 °C | 4 | |
| Junction-to-ambient thermal resistance RθJA | D, 8 PINS | typ 116.3 °C/W | 5 |
| Junction-to-case (top) thermal resistance RθJC(top) | D, 8 PINS | typ 53.7 °C/W | 5 |
| Junction-to-board thermal resistance RθJB | D, 8 PINS | typ 57.1 °C/W | 5 |
| Junction-to-top characterization parameter ψJT | D, 8 PINS | typ 12.9 °C/W | 5 |
| Junction-to-board characterization parameter ψJB | D, 8 PINS | typ 56.5 °C/W | 5 |
| Internal undervoltage lockout threshold | Rising and falling; TJ = –40°C to 150°C, VIN = 3.5 to 28 V | max 3.5 V | 5 |
| Shutdown supply current | EN = 0 V, VIN = 12 V, –40°C to 85°C | typ 1 · max 4 uA | 5 |
| Operating – non-switching supply current | VSENSE = 0.85 V; TJ = –40°C to 150°C, VIN = 3.5 to 28 V | typ 110 · max 190 uA | 5 |
| Enable threshold | Rising and falling; TJ = –40°C to 150°C, VIN = 3.5 to 28 V | typ 1.25 · max 1.35 V | 5 |
| Input current | EN pin; Enable threshold – 50 mV | typ -1 uA | 5 |
| Input current | EN pin; Enable threshold + 50 mV | typ -4 uA | 5 |
| Voltage reference | TJ = –40°C to 150°C, VIN = 3.5 to 28 V | min 0.772 · typ 0.8 · max 0.828 V | 5 |
| On resistance | High-side MOSFET; BOOT-PH = 3 V, VIN = 3.5 V | typ 115 · max 200 mΩ | 5 |
| On resistance | High-side MOSFET; BOOT-PH = 6 V, VIN = 12 V | typ 80 · max 150 mΩ | 5 |
| Error amplifier transconductance (gm) | –2 uA < I(COMP) < 2 uA, V(COMP) = 1 V | typ 92 umhos | 5 |
| Error amplifier DC gain | VSENSE = 0.8 V; specified by design | typ 800 V/V | 5 |
| Error amplifier unity gain bandwidth | 5-pF capacitance from COMP to GND pins; specified by design | typ 2.7 MHz | 5 |
| Error amplifier source and sink current | V(COMP) = 1 V, 100-mV overdrive; typical magnitude, printed as ±7 | typ 7 uA | 5 |
| Switch current to COMP transconductance | VIN = 12 V | typ 12 A/V | 5 |
| Pulse skipping Eco-mode switch current threshold | TJ = –40°C to 150°C, VIN = 3.5 to 28 V | typ 160 mA | 5 |
| Current-limit threshold | VIN = 12 V | min 3.5 · typ 5.8 A | 5 |
| Thermal shutdown | typ 165 °C | 5 | |
| Charge current | SS pin; V(SS) = 0.4 V | typ 2 uA | 5 |
| SS to VSENSE matching | V(SS) = 0.4 V | typ 10 mV | 5 |
| Switching frequency | VIN = 12 V, 25°C | min 456 · typ 570 · max 684 kHz | 6 |
| Minimum controllable on time | VIN = 12 V, 25°C | typ 105 · max 130 ns | 6 |
| Maximum controllable duty ratio | BOOT-PH = 6 V | min 90 · typ 93 % | 6 |
Pins, by the datasheet
8- 1 BOOT
- Connect a 0.1-uF bootstrap capacitor between BOOT and PH; insufficient capacitor voltage forces the high-side MOSFET off until refreshed. · p. 3
- 2 VIN
- 3.5-V to 28-V input supply voltage. · p. 3
- 3 EN
- Pull below 1.25 V to disable; float to enable. Programming input undervoltage lockout with two resistors is recommended. · p. 3
- 4 SS
- Slow-start pin; an external capacitor sets the output rise time. · p. 3
- 5 VSENSE
- Inverting node of the transconductance error amplifier. · p. 3
- 6 COMP
- Error-amplifier output and PWM comparator input; connect frequency compensation components. · p. 3
- 7 GND
- Ground pin. · p. 3
- 8 PH
- Source of the internal high-side power MOSFET. · p. 3
Parameters
21- Current Limit
- 5.8A
- Features
- External compensation
- Frequency - Switching
- 570kHz
- Function
- Step-down type
- Junction Temperature(Max)
- 150℃
- Number of Outputs
- 1
- Operating Temperature
- -40℃~+150℃@(TJ)
- Output Current
- 3A
- Output Type
- Adjustable
- Output Voltage
- 800mV~25V
- Quiescent Current
- 110uA
- Reference Voltage
- 800mV
- Standby Current
- 1uA
- Switch tube (built-in/external)
- Built-in
- Synchronous Rectifier
- No
- Thermal Resistance(Junction to Ambient)
- 116.3℃/W
- Thermal Resistance(Junction to Board)
- 57.1℃/W
- Thermal Resistance(Junction to Case)
- 53.7℃/W
- Topology
- Buck
- Voltage - Supply
- 3.5V~28V
- Voltage - Supply(Absolute Max)
- 30V
Order codes
3- TPS54331DRG4LCSC C2071648
- TPS54331DLCSC C2872693
- TPS54331DRLCSC C9865
Pinout
9| Pin | Name | Type |
|---|---|---|
| 1 | BOOT | Input/output |
| 2 | VIN | Power in |
| 3 | EN | Input |
| 4 | SS | Output |
| 5 | VSENSE | Input |
| 6 | COMP | Input |
| 7 | GND | Power in |
| 8 | PH | Power out |
| PAD | PAD | Power in |
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Bd845-pwb
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A clone of the original Konami GN845-PWB(B) Stage I/O board for DDR machines.
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Is there a KiCad symbol and footprint for the TPS54331D?
Yes. The symbol is freetronics_schematic:TPS54331 and the footprint freetronics_footprints:SO8_WITH_EP, both drawn on this page. PCBKit places them on a board for you when you design with it.
What package is the TPS54331D?
SOIC-8, with 9 pins. Its footprint is drawn on this page.
Where is the TPS54331D datasheet?
Texas Instruments publishes it: the Datasheet link on this page opens it.
Where can I order the TPS54331D?
JLCPCB lists it as part C9865, with 390,146 in stock; the sellers' links on this page open their listings.
What can replace the TPS54331D?
Parts like it in the library: the TPS54331DDAR by Texas Instruments, the TPS54329DDAR by Texas Instruments, the TPS54329EDDAR by Texas Instruments and the TPS54331QDRQ1 by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
Which open-source boards use the TPS54331D?
48 boards in 41 repositories on GitHub; the most starred are listed on this page, with their KiCad files.
Parts like it
7
TPS54331DDAR
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SOIC-8-EP-40℃~+85℃@(TA) 1 3A 4.5V~18V 650kHz 760mV~7V Adjustable Buck Buck Built-in Yes SOIC-8-EP DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersTPS54329EDDAR
SOIC-8-EP-40℃~+85℃@(TA) 1 1.2mA 3A 4.5V~18V 650kHz 760mV~7V Adjustable Buck Buck Built-in Yes SOIC-8-EP DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersTPS54331QDRQ1
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SOIC-8-40℃~+150℃@(TJ) 1 190uA 3.5V~28V 3A 570kHz 800mV~25V Adjustable Buck Buck Built-in No SOIC-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersTPS54329EDDA
ESOP-8-40℃~+150℃@(TJ) 1 4.5V~18V 650kHz Buck Buck Built-in Yes ESOP-8 DC-DC Converters ROHSTexas InstrumentsDC-DC ConvertersTPS54331DDAR(TOKMAS)
SOP-8-EP-40℃~+125℃@(TJ) 1 20uA 3.8V~28V 3A 400kHz Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Cycle-by-cycle current limiting、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes SOP-8-EP DC-DC Converters ROHSTokmasDC-DC Converters