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THVD1552DGSR

Public Made by Adom

by adom

Texas Instruments RS-485/RS-422 ICs, VSSOP-10-0.5mm. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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THVD1552DGSR

Texas Instruments · RS-485/RS-422 ICs · VSSOP-10-0.5mm

THVD1552DGSR from Texas Instruments, in a VSSOP-10-0.5mm. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 R output Receive data output.
2 RE input Receiver enable, active low, with 2 MΩ internal pull-up.
3 DE input Driver enable, active high, with 2 MΩ internal pull-down.
4 D input Driver data input.
5 GND power_in Device ground.
6 Y output Bus output Y, complementary to Z.
7 Z output Bus output Z, complementary to Y.
8 B input Bus input B, complementary to A.
9 A input Bus input A, complementary to B.
10 VCC power_in 5-V supply.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-10-0.5mm
Category Communication Interface Chip/UART/485/232
Pins 10

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage VCC -0.5 7 V over operating free-air temperature range 6
Bus voltage (any bus pin A, B, Y, Z) -18 18 V differential or common-mode with respect to GND 6
Input voltage at logic pin (D, DE, RE) -0.3 5.7 V 6
Receiver output current IO -24 24 mA 6
Storage temperature Tstg -65 150 °C 6
Supply voltage VCC 4.5 5.5 V 7
Input voltage at any bus terminal VI -15 15 V 7
High-level input voltage VIH 2 V driver, driver enable, receiver enable inputs; max VCC 7
Low-level input voltage VIL 0 0.8 V driver, driver enable, receiver enable inputs 7
Differential input voltage VID -15 15 V 7
Output current, driver IO -60 60 mA 7
Output current, receiver IOR -8 8 mA 7
Differential load resistance RL 54 Ω 7
Signaling rate 1/tUI 50 Mbps THVD1552 7
Operating ambient temperature TA -40 125 °C 7
Junction temperature TJ -40 150 °C 7
Junction-to-ambient thermal resistance RθJA 151.4 °C/W DGS (VSSOP) 10 pins 7
Junction-to-case (top) thermal resistance RθJC(top) 59.3 °C/W DGS (VSSOP) 10 pins 7
Junction-to-board thermal resistance RθJB 81.6 °C/W DGS (VSSOP) 10 pins 7
Junction-to-top characterization parameter ψJT 6.5 °C/W DGS (VSSOP) 10 pins 7
Junction-to-board characterization parameter ψJB 79.9 °C/W DGS (VSSOP) 10 pins 7
Driver differential output voltage magnitude /VOD/ 1.5 V RL = 60 Ω, -15 V ≤ Vtest ≤ 15 V 8
Driver differential output voltage magnitude /VOD/ 2 V RL = 100 Ω 8
Change in differential output voltage Δ/VOD/ -200 200 mV RL = 54 Ω 8
Common-mode output voltage VOC 1 3 V typ VCC/2 8
Change in steady-state common-mode output voltage ΔVOC(SS) -200 200 mV 8
Short-circuit output current IOS -250 250 mA DE = VCC, -15 V ≤ VO ≤ 15V 8
Bus input current II 115 160 µA THVD155x, VI = 12 V, DE = 0 V, VCC = 0 V or 5.5 V 8
Bus input current II 150 200 µA THVD155x, VI = 15 V, DE = 0 V, VCC = 0 V or 5.5 V 8
Bus input current II -130 -75 µA THVD155x, VI = -7 V, DE = 0 V, VCC = 0 V or 5.5 V 8
Bus input current II -280 -180 µA THVD155x, VI = -15 V, DE = 0 V, VCC = 0 V or 5.5 V 8
Positive-going input threshold voltage VTH+ -85 -20 mV Over common-mode range of -7 V to +12 V 8
Negative-going input threshold voltage VTH- -200 -135 mV Over common-mode range of -7 V to +12 V 8
Input hysteresis VHYS 50 mV Over common-mode range of -7 V to +12 V 8
Negative-going input threshold voltage VTH- -220 -135 mV Over common-mode range of ± 15 V 8
Output high voltage VOH 4 V IOH = -8 mA 8
Output low voltage VOL 0.2 0.4 V IOL = 8 mA 8
Output high-impedance current IOZ -1 1 µA VO = 0 V or VCC, RE = VCC 8
Input current (D, DE, RE) IIN -5 0 5 µA 4.5 V ≤ VCC ≤ 5.5 V, 0 V ≤ VIN ≤ VCC 8
Supply current, driver and receiver enabled ICC 700 1000 µA RE = 0 V, DE = VCC, No load 8
Supply current, driver enabled, receiver disabled ICC 400 620 µA RE = VCC, DE = VCC, No load 8
Supply current, driver disabled, receiver enabled ICC 400 630 µA RE = 0 V, DE = 0 V, No load 8
Supply current, driver and receiver disabled ICC 0.1 1 µA RE = VCC, DE = 0 V, D = open, No load 8
Thermal shutdown temperature TSD 170 °C 8
Driver differential output rise/fall time tr, tf 1 2 6 ns RL = 54 Ω, CL = 50 pF 9
Driver propagation delay tPHL, tPLH 5 10 16 ns RL = 54 Ω, CL = 50 pF 9
Driver pulse skew tSK(P) 3.5 ns RL = 54 Ω, CL = 50 pF 9
Driver disable time tPHZ, tPLZ 10 22 ns See 图 14 and 图 15 9
Driver enable time tPZH, tPZL 10 22 ns RE = 0 V 9
Driver enable time tPZH, tPZL 2 4 µs RE = VCC 9
Receiver output rise/fall time tr, tf 1 3 6 ns CL = 15 pF 9
Receiver propagation delay tPHL, tPLH 30 45 ns CL = 15 pF 9
Receiver pulse skew tSK(P) 2 ns CL = 15 pF 9
Receiver disable time tPHZ, tPLZ 8 18 ns 9
Receiver enable time tPZH, tPZL 55 90 ns DE = VCC 9
Receiver enable time tPZH, tPZL 3 8 µs DE = 0 V 9
Power dissipation, RS-485 load PD 340 mW THVD155x 50 Mbps, VCC = 5.5 V, TA = 125 °C, RL = 54 Ω, CL = 50 pF 7

CAD (KiCad official)

  • Symbol: THVD1552DGSR
  • Footprint: Package_SO:MSOP-10_3x3mm_P0.5mm
  • 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
  • 3D model files: thvd1552dgsr-etched.step / thvd1552dgsr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); thvd1552dgsr.step / thvd1552dgsr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (42 pp, sha256 3549aa9fa651759d, retrieved 2026-10-23, tier: manufacturer)
  • Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF