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TLC5925IDBQR

Texas Instruments · Integrated Circuits (ICs) · SSOP-24_3.9x8.7mm_P0.635mm

TLC5925IDBQR from Texas Instruments, in a SSOP-24_3.9x8.7mm_P0.635mm. 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 GND power_in Ground for control logic and current sink; all LED current passes through the device into this ground node, so it needs a strong connection to the board ground.
2 SDI input Serial-data input to the 16-bit shift register, with VIH of 0.7 × VDD minimum and VIL of 0.3 × VDD maximum.
3 CLK input Clock input that shifts data on the rising edge, with a maximum clock frequency of 30 MHz in cascade operation.
4 LE input Data strobe that transfers serial data to the latch while high and latches the data when it goes low, with an internal pull-down resistor of 500 kΩ.
5 OUT0 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
6 OUT1 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
7 OUT2 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
8 OUT3 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
9 OUT4 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
10 OUT5 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
11 OUT6 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
12 OUT7 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
13 OUT8 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
14 OUT9 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
15 OUT10 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
16 OUT11 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
17 OUT12 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
18 OUT13 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
19 OUT14 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
20 OUT15 output Constant-current sink output rated for up to 17 V at the output port and up to 45 mA at VO ≥ 1 V.
21 OE input Output enable that turns the output drivers on when low and blanks all outputs when high, with an internal pullup resistor of 500 kΩ.
22 SDO output Serial-data output to the SDI of the next driver IC or to the microcontroller, with IOH limited to -1 mA and IOL limited to 1 mA.
23 R-EXT input Input for an external resistor Rext that sets the output current, where IOUT,target = (1.21 V / Rext) × 18.
24 VDD power_in Supply voltage input with a recommended range of 3 V to 5.5 V and an absolute maximum of 7 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SSOP-24_3.9x8.7mm_P0.635mm
Category Integrated Circuits (ICs)
Pins 24

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 VDD 3 5.5 V 4
Output voltage OUT0 to OUT15 VO 17 V 4
Output current IO 3 mA VO ≥ 0.6 V 4
Output current IO 45 mA VO ≥ 1 V 4
High-level output current SDO IOH -1 mA 4
Low-level output current SDO IOL 1 mA 4
Rise time CLK tR 500 ns 4
Fall time CLK tF 500 ns 4
Supply voltage VDD VDD 0 7 V 4
Output voltage VO -0.5 20 V 4
Output current IOUT 45 mA 4
GND terminal current IGND 750 mA 4
Free-air operating temperature range TA -40 125 °C 4
Operating junction temperature range TJ -40 150 °C 4
Storage temperature range Tstg -55 150 °C 4
Junction-to-ambient thermal resistance DBQ RθJA 99.8 °C/W Mounted on JEDEC 1-layer board (JESD 51-3), No airflow 5
Junction-to-ambient thermal resistance DBQ RθJA 61 °C/W Mounted on JEDEC 4-layer board (JESD 51-7), No airflow 5
Junction-to-case (top) thermal resistance DBQ RθJC(top) 52.9 °C/W 5
Junction-to-board thermal resistance DBQ RθJB 41.5 °C/W 5
Power dissipation DBQ package PD 1.6 W Mounted on JEDEC 4-layer board (JESD 51-7), No airflow, TA = 25°C, TJ = 125°C 6
LE pulse duration tw(L) 15 ns VDD = 3 V to 5.5 V 7
CLK pulse duration tw(CLK) 15 ns VDD = 3 V to 5.5 V 7
OE pulse duration tw(OE) 300 ns VDD = 3 V to 5.5 V 7
Setup time for SDI tsu(D) 3 ns VDD = 3 V to 5.5 V 7
Hold time for SDI th(D) 2 ns VDD = 3 V to 5.5 V 7
Setup time for LE tsu(L) 5 ns VDD = 3 V to 5.5 V 7
Hold time for LE th(L) 5 ns VDD = 3 V to 5.5 V 7
Clock frequency, cascade operation fCLK 30 MHz VDD = 3 V to 5.5 V 7
Output leakage current Ileak 0.5 μA VDD = 3 V; VOH = 17 V, TJ = 25°C 5
Output leakage current Ileak 2 μA VDD = 3 V; VOH = 17 V, TJ = 125°C 5
Low-level output voltage SDO VOL 0.4 V VDD = 3 V; SDO, IOH = 1 mA 5
Output current error, die-die IO(1) -6 6 % VDD = 3 V; IOL = 13 mA, VO = 0.6 V, Rext = 1680 Ω, TJ = 25°C 5
Output current error, channel-to-channel IO(1) -4 4 % VDD = 3 V; IOL = 13 mA, VO = 0.6 V, Rext = 1680 Ω, TJ = 25°C 5
OUT vs output voltage regulation IOUT -0.1 0.1 %/V VDD = 3 V; VO = 1 V to 3 V, IO = 13 mA 5
OUT vs supply voltage regulation IOUT -1 1 %/V VDD = 3 V; VDD = 3.0 V to 5.5 V, IO = 13 mA to 45 mA 5
Overtemperature shutdown Tsd 150 175 200 °C VDD = 3 V 5
Supply current IDD 7 10 mA VDD = 3 V; Rext = Open 5
Supply current IDD 9 12 mA VDD = 3 V; Rext = 1680 Ω 5
Supply current IDD 11 13 mA VDD = 3 V; Rext = 840 Ω 5
Low-level output voltage SDO VOL 0.4 V VDD = 5.5 V; SDO, IOH = 1 mA 6
Output leakage current Ileak 0.5 μA VDD = 5.5 V; VOH = 17 V, TJ = 25°C 6
Output leakage current Ileak 2 μA VDD = 5.5 V; VOH = 17 V, TJ = 125°C 6
Output current error, die-die IO(1) -6 6 % VDD = 5.5 V; IOL = 13 mA, VO = 0.6 V, Rext = 1680 Ω, TJ = 25°C 6
Output current error, channel-to-channel IO(1) -4 4 % VDD = 5.5 V; IOL = 13 mA, VO = 0.6 V, Rext = 1680 Ω, TJ = 25°C 6
OUT vs output voltage regulation IOUT -0.1 0.1 %/V VDD = 5.5 V; VO = 1 V to 3 V, IO = 26 mA 6
OUT vs supply voltage regulation IOUT -1 1 %/V VDD = 5.5 V; VDD = 3.0 V to 5.5 V, IO = 13 mA to 45 mA 6
Overtemperature shutdown Tsd 150 175 200 °C VDD = 5.5 V 6
Supply current IDD 9 11 mA VDD = 5.5 V; Rext = Open 6
Supply current IDD 12 14 mA VDD = 5.5 V; Rext = 1680 Ω 6
Supply current IDD 14 16 mA VDD = 5.5 V; Rext = 840 Ω 6
Output current 1 IO(1) 13 mA VDD = 3 V; VOUT = 0.6 V, Rext = 1680 Ω 5
Output current 2 IO(2) 26 mA VDD = 3 V; VO = 0.8 V, Rext = 840 Ω 5
Output current 1 IO(1) 13 mA VDD = 5.5 V; VOUT = 0.6 V, Rext = 1680 Ω 6
Output current 2 IO(2) 26 mA VDD = 5.5 V; VO = 0.8 V, Rext = 840 Ω 6

CAD (KiCad official)

  • Symbol: TLC5925IDBQR
  • Footprint: Package_SO:SSOP-24_3.9x8.7mm_P0.635mm
  • 3D model: SSOP-24_3.9x8.7mm_P0.635mm (KiCad packages3D, STEP)
  • 3D model files: tlc5925idbqr-etched.step / tlc5925idbqr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlc5925idbqr.step / tlc5925idbqr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (29 pp, sha256 54e6daa4fa13027e, retrieved 2026-11-10, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-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