SGM8781x-1Q

Active

Automotive Grade

Automotive, 40V, Rail-to-Rail Input, High Voltage Comparator

SGM8781x-1Q.pdf

The SGM8781x-1Q series is a high voltage comparator, featuring rail-to-rail input, push-pull and open-drain outputs, low quiescent current, shutdown capability and fast response. These characteristics make it suitable for voltage sensing tasks such as reverse current protection in smart diode controllers, over-current detection, and over-voltage protection circuits, where its push-pull output can drive the gate of a MOSFET switch.

The SGM8781A-1Q and SGM8781C-1Q have a special push-pull output stage that delivers high peak current. This allows the output to quickly drive the load to either power supply level, which is especially useful for rapidly switching a MOSFET gate on or off to protect a system from unexpected high voltage. The SGM8781A-1Q also has a shutdown capability. With features including low offset voltage, high-Z shutdown, and a power-on reset, the SGM8781A-1Q is a versatile solution for various application fields.

The SGM8781B-1Q has an open-drain output stage. The open collector output can be pulled up to a voltage up to 40V higher than its negative supply rail, independent of its own supply voltage.

The device is AEC-Q100 qualified (Automotive Electronics Council (AEC) standard Q100 Grade 1) and it is suitable for automotive applications.

The SGM8781A-1Q is available in a Green SOT-23-6 package. The SGM8781B-1Q and SGM8781C-1Q are available in a Green SOT-23-5 package. They are specified over the extended -40 ℃ to +125 ℃ temperature range.

FEATURES

AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1
- T_A = -40℃ to +125℃
Wide Supply Range: 3.3V to 40V
Low Quiescent Current: 115µA (TYP)
Rail-to-Rail Input with Phase Reversal Protection
Output Structure:
- High Peak Current Push-Pull Output: SGM8781A-1Q and SGM8781C-1Q
- Open-Drain Output: SGM8781B-1Q
Low Input Offset Voltage: ±2.5mV (MAX)
Internal Hysteresis: 14mV
Propagation Delay: 200ns
Shutdown Capability with High-Impedance Output (SGM8781A-1Q)
Power-On-Reset
Small Packaging:
- SGM8781A-1Q Available in a Green SOT-23-6 Package
- SGM8781B-1Q Available in a Green SOT-23-5 Package
- SGM8781C-1Q Available in a Green SOT-23-5 Package

APPLICATIONS

Automotive Power Systems
Smart Diode Controllers
OR-ing MOSFET Controllers
Industrial Equipment
Medical Equipment
Telecom Equipment

Ordering Information

Part Number	Status	Package	Pins	Pd-Free	RoHS	REACH	Green	MSL Rating	Operating Temperature Range	Material Content	Reliability Report	Unit Resale Price* (Volume Range: in USD)
SGM8781A-1QN6G/TR	Active	SOT-23-6	6	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View	1-24 units : $1.4/unit 25-99 units : $1.2/unit 100-249 units : $1/unit 250-499 units : $0.8/unit 500-999 units : $0.7/unit 1000-9999 units : $0.52/unit
SGM8781B-1QN5G/TR	Active	SOT-23-5	5	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View	1-24 units : $1.05/unit 25-99 units : $0.9/unit 100-249 units : $0.75/unit 250-499 units : $0.6/unit 500-999 units : $0.525/unit 1000-9999 units : $0.39/unit
SGM8781C-1QN5G/TR	Active	SOT-23-5	5	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View	1-24 units : $1.4/unit 25-99 units : $1.2/unit 100-249 units : $1/unit 250-499 units : $0.8/unit 500-999 units : $0.7/unit 1000-9999 units : $0.52/unit

* The unit resale price is for reference purposes only. Please contact our distributors for a formal quotation.

** The lead time provided is for reference purposes only and is subject to change based on different circumstances.