TL494BDR2G from onsemi, in a SOIC-16. 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	Error Amp 1 Noninv Input	input	Noninverting input of error amplifier 1, with common-mode range of -0.3 V to VCC-2.0 V.
2	Error Amp 1 Inv Input	input	Inverting input of error amplifier 1, with common-mode range of -0.3 V to VCC-2.0 V.
3	Compen/PWM Comp Input	bidirectional	Error amplifier outputs (active high, ORed) and PWM comparator input for compensation/feedback, with the PWM comparator spanning 0.5 V to 3.5 V.
4	Deadtime Control	input	Deadtime control comparator input, set to a fixed voltage from 0 V to 3.3 V to impose additional deadtime, with input bias current of -2.0 uA typ.
5	CT	passive	Timing capacitor connection that sets oscillator frequency (fosc ≈ 1.1/(RT·CT)), recommended 0.0047 uF to 10 uF.
6	RT	passive	Timing resistor connection that sets oscillator frequency, recommended 1.8 kΩ to 500 kΩ.
7	Ground	power_in	Ground reference for the device.
8	C1	passive	Collector of uncommitted output transistor Q1, rated to 500 mA and 42 V maximum.
9	E1	passive	Emitter of output transistor Q1, rated to 500 mA source or sink.
10	E2	passive	Emitter of output transistor Q2, rated to 500 mA source or sink.
11	C2	passive	Collector of uncommitted output transistor Q2, rated to 500 mA and 42 V maximum.
12	VCC	power_in	Power supply input, 7.0 V to 40 V recommended operating range and 42 V maximum.
13	Output Control	input	Selects single-ended/parallel operation when grounded or push-pull operation when connected to Vref (2.4 V ≤ VOC ≤ Vref for push-pull per Figure 17 ranges).
14	Vref Output	power_out	Internal 5.0 V reference output (4.75 V to 5.25 V) capable of sourcing up to 10 mA.
15	Error Amp 2 Inv Input	input	Inverting input of error amplifier 2, with common-mode range of -0.3 V to VCC-2.0 V.
16	Error Amp 2 Noninv Input	input	Noninverting input of error amplifier 2, with common-mode range of -0.3 V to VCC-2.0 V.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOIC-16
Category	Power Management ICs
Pins	16

Electrical characteristics

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

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Power Supply Voltage	VCC			42	V		1
Collector Output Voltage	VC1, VC2			42	V		1
Collector Output Current (Each transistor)	IC1, IC2			500	mA	Each transistor (Note 1)	1
Amplifier Input Voltage Range	VIR	-0.3		42	V		1
Power Dissipation	PD			1000	mW	TA ≤ 45°C	1
Thermal Resistance, Junction-to-Ambient	RJA			80	°C/W		1
Operating Junction Temperature	TJ			125	°C		1
Storage Temperature Range	Tstg	-55		125	°C		1
Operating Ambient Temperature Range	TA	-40		125	°C	TL494B variant	1
Power Supply Voltage	VCC	7	15	40	V		2
Collector Output Voltage	VC1, VC2		30	40	V		2
Collector Output Current (Each transistor)	IC1, IC2			200	mA		2
Amplified Input Voltage	Vin	-0.3			V	Max printed as VCC − 2.0 V	2
Current Into Feedback Terminal	lfb			0.3	mA		2
Reference Output Current	lref			10	mA		2
Timing Resistor	RT	1.8	30	500	k		2
Timing Capacitor	CT	0.0047	0.001	10	F		2
Oscillator Frequency	fosc	1	40	200	kHz		2
Reference Voltage	Vref	4.75	5	5.25	V	IO = 1.0 mA	2
Line Regulation	Regline		2	25	mV	VCC = 7.0 V to 40 V	2
Load Regulation	Regload		3	15	mV	IO = 1.0 mA to 10 mA	2
Short Circuit Output Current	ISC	15	35	75	mA	Vref = 0 V	2
Collector Off-State Current	IC(off)		2	100	A	VCC = 40 V, VCE = 40 V	2
Emitter Off-State Current	IE(off)			-100	A	VCC = 40 V, VC = 40 V, VE = 0 V	2
Collector-Emitter Saturation Voltage, Common-Emitter	Vsat(C)		1.1	1.3	V	VE = 0 V, IC = 200 mA	2
Collector-Emitter Saturation Voltage, Emitter-Follower	Vsat(E)		1.5	2.5	V	VC = 15 V, IE = −200 mA	2
Output Control Pin Current, Low State	IOCL			10	A	VOC ≤ 0.4 V	2
Output Control Pin Current, High State	IOCH		0.2	3.5	mA	VOC = Vref	2
Output Voltage Rise Time, Common-Emitter	tr		100	200	ns	See Figure 12	2
Output Voltage Rise Time, Emitter-Follower	tr		100	200	ns	See Figure 13	2
Output Voltage Fall Time, Common-Emitter	tf		25	100	ns	See Figure 12	2
Output Voltage Fall Time, Emitter-Follower	tf		40	100	ns	See Figure 13	2
Input Offset Voltage	VIO		2	10	mV	VO (Pin 3) = 2.5 V	3
Input Offset Current	IIO		5	250	nA	VO (Pin 3) = 2.5 V	3
Input Bias Current	IIB		-0.1	-1	A	VO (Pin 3) = 2.5 V	3
Input Common Mode Voltage Range	VICR	-0.3			V	VCC = 40 V, TA = 25°C; max printed as VCC−2.0 V	3
Open Loop Voltage Gain	AVOL	70	95		dB	VO = 3.0 V, VO = 0.5 V to 3.5 V, RL = 2.0 k	3
Common Mode Rejection Ratio	CMRR	65	90		dB	VCC = 40 V	3
Output Sink Current	IO−	0.3	0.7		mA	VO (Pin 3) = 0.7 V	3
Output Source Current	IO+	2	-4		mA	VO (Pin 3) = 3.5 V	3
Input Threshold Voltage (Zero Duty Cycle)	VTH		2.5	4.5	V		3
Input Sink Current	II−	0.3	0.7		mA	V(Pin 3) = 0.7 V	3
Input Bias Current (Pin 4)	IIB(DT)		-2	-10	A	VPin 4 = 0 V to 5.25 V	3
Maximum Duty Cycle, Each Output, Push-Pull Mode	DCmax	45		48	%	VPin 4 = 0 V, CT = 0.01 F, RT = 12 k	3
Maximum Duty Cycle, Each Output, Push-Pull Mode	DCmax	45	50	50	%	VPin 4 = 0 V, CT = 0.001 F, RT = 30 k	3
Input Threshold Voltage (Pin 4), Zero Duty Cycle	Vth		2.8	3.3	V	Zero Duty Cycle	3
Input Threshold Voltage (Pin 4), Maximum Duty Cycle	Vth	0			V	Maximum Duty Cycle	3
Frequency Change with Temperature	fosc(T)			12	%	TA = Tlow to Thigh; CT = 0.01 F, RT = 12 k	3
Turn-On Threshold	Vth	5.5	6.43	7	V	VCC increasing, Iref = 1.0 mA	3
Standby Supply Current	ICC		5.5	10	mA	Pin 6 at Vref, VCC = 15 V	3
Standby Supply Current	ICC		7	15	mA	Pin 6 at Vref, VCC = 40 V	3

CAD (KiCad official)

Symbol: TL494BDR2G
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)
3D model files: tl494bdr2g-etched.step / tl494bdr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl494bdr2g.step / tl494bdr2g.glb are the bare package body.

Provenance

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

Datasheet: onsemi datasheet (14 pp, sha256 22e2ba6778253a07, retrieved 2026-11-07, 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

TL494BDR2G

Verified TL494BDR2G

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README