TL391B Series

36-V, standard, single-channel comparator

Catalog

36-V, standard, single-channel comparator

Part	Propagation Delay (Max)	Voltage - Input Offset (Max) [Max]	Package / Case	Current - Output (Typ)	Operating Temperature [Max]	Operating Temperature [Min]	Current - Input Bias (Max) [Max]	Type	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±) [Max]	Output Type	Current - Quiescent (Max) [Max]	Mounting Type	Supplier Device Package	Number of Elements
Texas Instruments TL391BIDBVR	1 µs	2.5 mV	SC-74A SOT-753	18 mA	125 °C	-40 °C	0.025 µA	General Purpose	3 V	36 V	Open-Collector Rail-to-Rail	430 µA	Surface Mount	SOT-23-5	1

Catalog

36-V, standard, single-channel comparator

Key Features

• NEW TL331B and TL391BImproved specifications of B-versionMaximum rating: up to 38VESD rating (HBM): 2kVImproved reverse voltage performanceLow input offset: 0.37mVLow input bias current: 3.5nALow supply-current: 430µAFaster response time of 1µsecTL391B provides an alternate pinoutTL331B is improved drop-in replacement for TL331Common-mode input voltage range includes groundDifferential input voltage range equal to maximum-rated supply voltage: ±38VLow output saturation voltageOutput compatible with TTL, MOS, and CMOSNEW TL331B and TL391BImproved specifications of B-versionMaximum rating: up to 38VESD rating (HBM): 2kVImproved reverse voltage performanceLow input offset: 0.37mVLow input bias current: 3.5nALow supply-current: 430µAFaster response time of 1µsecTL391B provides an alternate pinoutTL331B is improved drop-in replacement for TL331Common-mode input voltage range includes groundDifferential input voltage range equal to maximum-rated supply voltage: ±38VLow output saturation voltageOutput compatible with TTL, MOS, and CMOS

Description

The TL331B and TL391B devices are the next generation versions of the industry-standard TL331 comparator. These next generation devices provide outstanding value for cost-sensitive applications, with features including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, wider temperature range and improved 2kV ESD performance with drop-in replacement convenience. The TL331B is a drop-in improved replacement for both the TL331I and TL331K versions, while the TL391B provides an alternate pinout of the TL331B to replace competitive devices. Operation from dual supplies also is possible as long as the difference between the two supplies is within 2V to 36V, and VCC is at least 1.5V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships. The TL331B and TL391B devices are the next generation versions of the industry-standard TL331 comparator. These next generation devices provide outstanding value for cost-sensitive applications, with features including lower offset voltage, higher supply voltage capability, lower supply current, lower input bias current, lower propagation delay, wider temperature range and improved 2kV ESD performance with drop-in replacement convenience. The TL331B is a drop-in improved replacement for both the TL331I and TL331K versions, while the TL391B provides an alternate pinout of the TL331B to replace competitive devices. Operation from dual supplies also is possible as long as the difference between the two supplies is within 2V to 36V, and VCC is at least 1.5V more positive than the input common-mode voltage. Current drain is independent of the supply voltage. The outputs can be connected to other open-collector outputs to achieve wired-AND relationships.