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Contents

README

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LMH6525SP

Texas Instruments · Laser Drivers · UQFN-28(5x5)

LMH6525SP from Texas Instruments, in a UQFN-28(5x5). 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 IOUTA output Laser driver output channel A, selected by the SEL pin and summing the active channel currents.
2 ENOSC input LVDS oscillator enable pin; internal oscillator is activated if the logical input is high.
3 ENOSCB input LVDS oscillator enable pin B (LMH6525 only); internal oscillator is activated if the logical input is low.
4 ENR input Read channel enable pin; read channel is active if pin is high.
5 ENABLE input Chip enable pin; chip is enabled if pin is high, and all outputs are off when low.
6 VDDA power_in Supply voltage A (5V single-supply operation).
7 GNDA power_in Ground connection A.
8 IR input Read channel current setting; 1 mA input current results in 150 mA output current.
9 I2 input Channel 2 current setting; 1 mA input current results in 300 mA output current.
10 I3 input Channel 3 current setting; 1 mA input current results in 150 mA output current.
11 I4 input Channel 4 current setting; 1 mA input current results in 150 mA output current.
12 RFA passive Oscillator frequency setting channel A, set by external resistor to ground.
13 RFB passive Oscillator frequency setting channel B, set by external resistor to ground.
14 RAA passive Oscillator amplitude setting channel A, set by external resistor to ground.
15 RAB passive Oscillator amplitude setting channel B, set by external resistor to ground.
16 SELB input Channel select B (LMH6525); channel is selected if pin is high.
17 EN2B input LVDS input channel 2B; channel 2 is active if logical input is low.
18 EN2 input LVDS input channel 2; channel 2 is active if logical input is high.
19 EN3B input LVDS input channel 3B; channel 3 is active if logical input is low.
20 EN3 input LVDS input channel 3; channel 3 is active if logical input is high.
21 EN4B input LVDS input channel 4B; channel 4 is active if logical input is low.
22 EN4 input LVDS input channel 4; channel 4 is active if logical input is high.
23 NC unconnected No connect.
24 VDD power_in Supply voltage (5V single-supply operation).
25 VDD power_in Supply voltage (5V single-supply operation).
26 VDD power_in Supply voltage (5V single-supply operation).
27 IOUTB output Laser driver output channel B, selected by the SEL pin and summing the active channel currents.
28 GNDB power_in Ground connection B.
29 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package UQFN-28(5x5)
Category LED Drivers
Pins 29

CAD (KiCad official)

  • Symbol: LMH6525SP
  • Footprint: Package_DFN_QFN:QFN-28-1EP_5x5mm_P0.5mm_EP3.35x3.35mm
  • 3D model: UQFN-28(5x5) (KiCad packages3D, STEP)
  • 3D model files: lmh6525sp-etched.step / lmh6525sp-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); lmh6525sp.step / lmh6525sp.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (24 pp, sha256 dbcf16bbe08e0a13, retrieved 2026-10-08, tier: lcsc)
  • 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