AL5814MP-13 from Diodes Incorporated, in a MSOP-8-EP. 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	VCC	power_in	Supply input, operating range 4.5V to 60V relative to GND.
2	REF	power_out	Internal 0.4V reference voltage output; maximum recommended output current is 50µA and capacitor to GND should be less than 100pF; a divider from REF to VSET sets the LED current.
3	VSET	input	LED current setting threshold that sets the reference voltage for the FB pin (0 to 0.6V operating range); pulled down internally if floating and capacitance to GND should be under 1nF.
4	GND	power_in	Ground.
5	FB	input	Feedback input regulated to the level set by VSET in linear mode; pulled up internally if floating and any capacitor to GND should be 100pF or less.
6	SFAULT	passive	Sets the VCC level at which LED-open protection activates via a 50µA source and external resistor to GND; shorted to GND enables detection by default, left open inhibits it.
7	OUT	output	Driving output for the external transistor, up to 15mA source current and 0 to 4V operating range.
8	VFAULT	input	LED-open detection input with about 2.5V falling threshold that turns off OUT when pulled lower, and allows PWM dimming via an open collector/drain signal.
9	EP	passive	Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter	Value
Manufacturer	Diodes Incorporated
Package	MSOP-8-EP
Category	Nixie Tube Driver/LED Driver
Pins	9

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Under-Voltage Lock-out Voltage (rising)	VUVLO		4.2	4.4	V	VIN Rising	5
Under-Voltage Lock-out Voltage (falling)	VUVLO	3.6	3.85		V	VIN Falling	5
Supply Current	ICC		10.25	11	mA	VCC = 4.5V to 60V, IOUT =10mA	5
No Load Quiescent Current	IQ		0.25	1	mA	VCC = 4.5V to 60V, IOUT =0	5
Reference Voltage	VREF	0.384	0.4	0.416	V	VCC = 4.5V to 60V, IOUT =0, IREF = 20µA	5
Reference Voltage Line Regulation	VREF_LINE		0.2	3	mV	VCC = 4.5V to 19V	5
Reference Voltage Load Regulation	VREF_LOAD		1.4	6	mV	IREF = 0 to -50µA	5
FB Input Bias Current	IFB	-200	-125	-80	nA	VFB = 0.2V	5
SET Input Bias Current	ISET		25	45	nA	VSET = 0.6V	5
VSET to VFB Offset	VOFFSET			7	mV	VSET = 0.2V, VFB = VOUT	5
Source Current from SFAULT Pin	ISFAULT	-56	-50	-43	µA	VCC = 4.5V to 60V	5
Source Current from VFAULT Pin	IVFAULT	-20	-15	-10	µA	VCC = 4.5V to 60V	5
VFAULT Pin Threshold Voltage	VVFAULT	2.37	2.5	2.63	V	VCC = 4.5V to 60V, VVFAULT Falling	5
Maximum Source Current	IOUTSOURCE			-15	mA	VSET, VFB = 10mV, VOUT = 0V, VCC = 4.5V to 60V	5
Maximum Source Current	IOUTSOURCE			-11	mA	VSET, VFB = 10mV, VOUT = 2V, VCC = 4.5V to 60V	5
Maximum Source Current	IOUTSOURCE			-5	mA	VSET, VFB = 10mV, VOUT = 4V, VCC = 6.0V to 60V	5
Maximum Sink Current	IOUTSINK	20			µA	VCC=12V, VOUT = 4V, VVFAULT > 2.7V, VSET, VFB = -50mV	5
Maximum Sink Current	IOUTSINK	0.3			mA	VCC =12V, VOUT = 4V, VFAULT enabled by SFAULT, VSET, VFB = -50mV, VVFAULT < 2.3V	5
Maximum Output Voltage	VOUTMAX	4			V	VCC ≥6V, IOUT = -1mA	5
Minimum Output Voltage	VOUTMIN			300	mV	VCC =12V, IOUT = 0.1mA, VFB = 250mV	5
Supply Voltage Relative to GND	VVCC	-0.3		65	V		3
IC Supply Current	IVCC			18	mA		3
Input Voltage VFAULT Relative to GND	VVFAULT	-0.3			V	Max is VCC	3
Input Voltage of REF, VSET, SFAULT, OUT, FB	VREF, VVSET, VSFAULT, VOUT, VFB	-0.3		6	V	Relative to GND	3
Operating Junction Temperature	TJ	-40		150	°C		3
Storage Temperature	TST	-55		150	°C		3
Supply Voltage Range Relative to GND Pin	VVCC	4.5		60	V		4
OUT Voltage Range	VOUT	0		4	V		4
OUT Pin Current	IOUT	0		15	mA		4
VSET Pin Operating Input Voltage Range	VVSET	0		0.6	V		4
Operating Junction Temperature Range	TJ	-40		125	°C		4
Operating Ambient Temperature	TA	-40		105	°C		4
ESD HBM	VESD			2000	V	Human-Body Model (HBM)	4
ESD CDM	VESD			1000	V	Charged-Device Model (CDM)	4
Junction-To-Ambient Thermal Resistance	θJA		90		°C/W	MSOP-8EP on FR-4 PCB 51mm x 51mm 2oz copper	4
Junction-To-Case (Top) Thermal Resistance	θJC		39		°C/W	MSOP-8EP on FR-4 PCB 51mm x 51mm 2oz copper	4
VFAULT Hysteresis	VVFAULT_HYS		100		mV		5
VFAULT to OUT Rising Delay	tVF_OUTR		2		µs		5
VFAULT to OUT Falling Delay	tVF_OUTF		1		µs		5
Thermal Shutdown	TSHDN		160		°C		5
Thermal Shutdown Hysteresis	THYS		30		°C		5
Trans-Conductance of Error Amplifier	Gm		4		A/V	VSET, VFB = 5mV, Sourcing Current	5
Bandwidth	BW		50		kHz		5

CAD (KiCad official)

Symbol: AL5814MP-13
Footprint: Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm
3D model: MSOP-8-EP (KiCad packages3D, STEP)
3D model files: al5814mp-13-etched.step / al5814mp-13-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); al5814mp-13.step / al5814mp-13.glb are the bare package body.

Provenance

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

Datasheet: Diodes Incorporated datasheet (14 pp, sha256 ea72378d92da2673, retrieved 2026-10-31, tier: manufacturer)
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

AL5814MP-13

Verified AL5814MP-13

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README