LM393

LM393B, LM2903B, LM193, LM293, LM393 and LM2903 Dual Comparators

Manufacturer

Overview

Part: LM393B, LM2903B, LM193, LM293, LM393, LM2903 Dual Comparators

Type: Dual Comparators

Key Specs:

Supply Voltage: 2 to 36 V (for B-versions)
Total Supply Current (5V to 36V max): 0.6 to 0.8 mA (for B-versions)

Features

NEW LM393B and LM2903B
Improved specifications of B-version
- Maximum rating: up to 38V
- ESD rating (HBM): 2kV
- Low input offset: 0.37mV
- Low input bias current: 3.5nA
- Low supply-current: 200µA per comparator
- Faster response time of 1µsec
- Extended temperature range for LM393B
- Available in tiny 2 x 2mm WSON package
B-version is drop-in replacement for LM293, LM393 and LM2903, A and V versions
Common-mode input voltage range includes
Differential input voltage range equal to maximumrated supply voltage: ±38 V
Low output saturation voltage
Output compatible with TTL, MOS, and CMOS

Applications

Vacuum robot
Single phase UPS
Server PSU
Cordless power tool
Wireless infrastructure
Applicances
Building automation
Factory automation & control
Motor drives
Infotainment & cluster

Pin Configuration

Figure 4-1. D, DGK, JG, P, PS, DDF or PW Package 8-Pin SOIC, VSSOP, PDIP, SO, or TSSOP Top View

Connect thermal pad directly to GND pin.

Figure 4-2. DSG Package 8-Pin WSON With Exposed Pad Top View

PIN SOIC, VSSOP, I/O DESCRIPTION NAME DSG PDIP, SO, DDF and TSSOP 10UT 1 Output Output pin of comparator 1 1IN-2 2 Input Negative input pin of comparator 1 1IN+ 3 3 Input Positive input pin of comparator 1 GND 4 4 Ground 2IN+ 5 5 Positive input pin of comparator 2 Input 2IN-6 6 Input Negative input pin of comparator 2 20UT 7 7 Output Output pin of comparator 2 Positive Supply 8 $V_{CC}$ 8 Thermal PAD Connect directly to GND pin Pad

Table 4-1. Pin Functions

Electrical Characteristics

VS = 5V, VCM = (V–) ; TA = 25°C (unless otherwise noted).

	PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
		VS = 5 to 36V	–2.5	±0.37	2.5
	Input offset voltage	VS = 5 to 36V, TA = –40°C to +85°C	-4		4
VIO	Input offset voltage, DGK package	VS = 5 to 36V	–3.5	±0.37	3.5	mV
	only	VS = 5 to 36V, TA = –40°C to +85°C	–5		5
				–3.5	–25	nA
IB	Input bias current	TA = –40°C to +85°C			–50	nA
			–10	±0.5	10	nA
IOS	Input offset current	TA = –40°C to +85°C	–25		25	nA
		VS = 3 to 36V	(V–)		(V+) – 1.5	V
VCM	Common mode range (1)	VS = 3 to 36V, TA = –40°C to +85°C	(V–)		(V+) – 2.0	V
AVD	Large signal differential voltage amplification	VS = 15V, VO = 1.4V to 11.4V; RL ≥ 15k to (V+)	50	200		V/mV
		ISINK ≤ 4mA, VID = -1V		110	400	mV
VOL	Low level output Voltage {swing from (V–)}	ISINK ≤ 4mA, VID = -1V TA = –40°C to +85°C			550	mV
		(V+) = VO = 5V; VID = 1V		0.1	20	nA
IOH-LKG	High-level output leakage current	(V+) = VO = 36V; VID = 1V		0.3	50	nA
IOL	Low level output current	VOL = 1.5V; VID = -1V; VS = 5V	6	21		mA
		VS = 5V, no load		400	600	µA
IQ	Quiescent current (all comparators)	VS = 36V, no load, TA = –40°C to +85°C		550	800	µA

⁽¹⁾ The voltage at either input can not be allowed to go negative by more than 0.3V otherwise output can be incorrect and excessive input current can flow. The upper end of the common-mode voltage range is limited by VCC – 2V. However only one input needs to be in the valid common mode range, the other input can go up the maximum VCC level and the comparator provides a proper output state. Either or both inputs can go to maximum VCC level without damage.

Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted) (1)

			MIN	MAX	UNIT
	Supply voltage(2)	Non-B Versions		36
VCC		B Versions Only	–0.3	38	V
	Differential input voltage(3)	Non-B Versions	-36	36
VID		B Versions Only	-38	38	V
		Non-B Versions		36
VI	Input voltage (either input)	B Versions Only	–0.3	38	V
IIK	Input current(5)			-50	mA
		Non-B Versions		36
VO	Output voltage	B Versions Only	–0.3	38	V
		Non-B Versions		20
IO	Output current	B Versions Only		25	mA
ISC	Duration of output short circuit to ground(4)			Unlimited
TJ	Operating virtual-junction temperature			150	°C
Tstg	Storage temperature		–65	150	°C

⁽¹⁾ Stresses beyond those listed under Absolute Maximum Ratings can cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods can affect device reliability. Production Processing Does Not Necessarily Include Testing of All Parameters.

(2) All voltage values, except differential voltages, are with respect to network ground.
(3) Differential voltages are at IN+ with respect to IN–.
(4) Short circuits from outputs to VCC can cause excessive heating and eventual destruction.
(5) Input current flows thorough parasitic diode to ground and turns on parasitic transistors that increases ICC and can cause the output to be incorrect. Normal operation resumes when input current is removed.

Recommended Operating Conditions

Over operating free-air temperature range (unless otherwise noted)

		MIN	MAX	UNIT
	non-V devices		30
Supply voltage, VS = (V+) – (V–)	V devices	2	32	V
	"B" version devices	2	36
	non-B devices	0
Input voltage range, VIVR	"B" version devices	–0.1	(V+) – 2.0	V
	LM193	–55	125
	LM2903, LM2903V, LM2903AV, LM2903B	–40	125
Ambient temperature, TA	LM393B	–40	85	°C
	LM293, LM293A	–25	85
	LM393, LM393A	0	70

Thermal Information

| | | | | | LMx93x, LM2903x | |-----------|----------------------------------------------|-----------|-------------|---------------|-----------------|-----------------|---------------|------| | | THERMAL METRIC(1) | | P
(PDIP) | PW
(TSSOP) | DGK
(VSSOP) | DDF
(SOT-23) | DSG
(WSON) | UNIT | | | | 8
PINS | 8
PINS | 8
PINS | 8
PINS | 8
PINS | 8
PINS | | RθJA | Junction-to-ambient thermal resistance | 148.5 | 114.9 | 200.6 | 193.7 | 197.9 | 96.9 | °C/W | | RθJC(top) | Junction-to-case (top) thermal resistance | 90.2 | 93.8 | 89.6 | 82.9 | 119.2 | 119.0 | °C/W | | RθJB | Junction-to-board thermal resistance | 91.8 | 77.7 | 131.3 | 115.5 | 115.4 | 63.1 | °C/W | | ψJT | Junction-to-top characterization parameter | 38.5 | 60.4 | 22.1 | 20.8 | 19.4 | 12.4 | °C/W | | ψJB | Junction-to-board characterization parameter | 91.1 | 76.7 | 129.6 | 113.9 | 113.7 | 63.0 | °C/W | | RθJC(bot) | Junction-to-case (bottom) thermal resistance | - | - | - | - | - | 37.8 | °C/W |

⁽¹⁾ For more information about traditional and new thermal metrics, see the Semiconductor and IC Package Thermal Metrics report.

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