THVD1449

Name: THVD1449
Brand: TI
SKU: THVD1449
Price: 1.43 USD

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RS-485-Transceiver, 3,3 V bis 5 V, 12 MBit/s, mit integriertem 4-kV-IEC-Überspannungsschutz und IEC

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Datenblatt

document-pdfAcrobat THVD14x9x 3-V to 5.5-V RS-485 Transceivers With 4-kV Surge Protection and 1.8-V VIO Capability datasheet (Rev. B) (Englisch) PDF | HTML

THVD1449

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Datenblatt

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Produktdetails

Number of receivers

1

Number of transmitters

1

Duplex

Half

Supply voltage (nom) (V)

3.3, 5

Signaling rate (max) (Mbps)

12

IEC 61000-4-2 contact (±V)

15000

Fault protection (V)

-15 to 15

Common-mode range (V)

-12 to 12

Number of nodes

256

Features

IEC ESD protection, Surge protection

Isolated

No

Supply current (max) (µA)

5000

Rating

Catalog

Operating temperature range (°C)

-40 to 125

Number of receivers

1

Number of transmitters

1

Duplex

Half

Supply voltage (nom) (V)

3.3, 5

Signaling rate (max) (Mbps)

12

IEC 61000-4-2 contact (±V)

15000

Fault protection (V)

-15 to 15

Common-mode range (V)

-12 to 12

Number of nodes

256

Features

IEC ESD protection, Surge protection

Isolated

No

Supply current (max) (µA)

5000

Rating

Catalog

Operating temperature range (°C)

-40 to 125

SOIC (D)

8

29.4 mm² 4.9 x 6

Meets or exceeds the requirements of the TIA/EIA-485A standard
3-V to 5.5-V Supply Voltage
V_IO Support from 1.65-V to V_CC supply level (THVD1439V, THVD1449V)
Bus I/O protection
- ± 4-kV IEC 61000-4-5 1.2/50-µs surge
- ± 15-kV IEC 61000-4-2 Contact discharge
- ± 15-kV IEC 61000-4-2 Air-gap discharge
- ± 4-kV IEC 61000-4-4 Electrical fast transient
- ± 15-kV HBM ESD
- ± 15-V DC bus fault
Available in two speed grades
- THVD1439, THVD1439V: 250 kbps
- THVD1449, THVD1449V: 12 Mbps
Extended ambient temperature range: -40°C to 125°C
Extended operational common-mode range: ± 12 V
Large receiver hysteresis for noise rejection
Low Power Consumption
- Standby supply current: < 3 µA
- Current during operation: < 5 mA
Glitch-free power-up/down for hot plug-in capability
Open, short, and idle bus failsafe
1/8 Unit load (up to 256 bus nodes)
Industry standard 8-pin SOIC for drop-in compatibility

Meets or exceeds the requirements of the TIA/EIA-485A standard
3-V to 5.5-V Supply Voltage
V_IO Support from 1.65-V to V_CC supply level (THVD1439V, THVD1449V)
Bus I/O protection
- ± 4-kV IEC 61000-4-5 1.2/50-µs surge
- ± 15-kV IEC 61000-4-2 Contact discharge
- ± 15-kV IEC 61000-4-2 Air-gap discharge
- ± 4-kV IEC 61000-4-4 Electrical fast transient
- ± 15-kV HBM ESD
- ± 15-V DC bus fault
Available in two speed grades
- THVD1439, THVD1439V: 250 kbps
- THVD1449, THVD1449V: 12 Mbps
Extended ambient temperature range: -40°C to 125°C
Extended operational common-mode range: ± 12 V
Large receiver hysteresis for noise rejection
Low Power Consumption
- Standby supply current: < 3 µA
- Current during operation: < 5 mA
Glitch-free power-up/down for hot plug-in capability
Open, short, and idle bus failsafe
1/8 Unit load (up to 256 bus nodes)
Industry standard 8-pin SOIC for drop-in compatibility

THVD14x9(V) devices are half-duplex RS-485 transceivers with integrated surge protection. Surge protection is achieved by integrating transient voltage suppressor (TVS) diodes in the standard 8-pin SOIC (D) package. This feature increases the reliability by providing better immunity to noise transients coupled to the data cable which eliminates the need for external protection components.

THVD1439 and THVD1449 operate from a single 3.3-V or 5-V supply. The THVD1439V and THVD1449V devices support an additional V_IO supply to operate the IOs from as low as 1.65 V supply level. The devices in this family feature a wide common-mode voltage range making them suitable for multi-point applications over long cable runs.

THVD14x9(V) devices are half-duplex RS-485 transceivers with integrated surge protection. Surge protection is achieved by integrating transient voltage suppressor (TVS) diodes in the standard 8-pin SOIC (D) package. This feature increases the reliability by providing better immunity to noise transients coupled to the data cable which eliminates the need for external protection components.

THVD1439 and THVD1449 operate from a single 3.3-V or 5-V supply. The THVD1439V and THVD1449V devices support an additional V_IO supply to operate the IOs from as low as 1.65 V supply level. The devices in this family feature a wide common-mode voltage range making them suitable for multi-point applications over long cable runs.

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	Typ	Titel		Datum
*	Data sheet	THVD14x9x 3-V to 5.5-V RS-485 Transceivers With 4-kV Surge Protection and 1.8-V VIO Capability datasheet (Rev. B)	PDF \| HTML	28 Sep 2021
	Application note	Simplifying Surge Protection for RS-485 Using Integrated Designs	PDF \| HTML	20 Mai 2024

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THVD1449

RS-485-Transceiver, 3,3 V bis 5 V, 12 MBit/s, mit integriertem 4-kV-IEC-Überspannungsschutz und IEC

THVD1449

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