SGM850xQ

Active

Automotive Grade

Precision Voltage Supervisor with Programmable Window Watchdog Timer for Automotive Applications

SGM850xQ.pdf

The SGM850xQ has an exact windowed voltage supervisor with 1.4% accuracy for both over-voltage (V_{IT + OV}) and under-voltage (V_{IT - UV}) thresholds over the temperature from -40℃ to +125℃. It also possesses accurate hysteresis on both thresholds for some systems that need small tolerance. The device output (nRESET) delay can either be determined by factory default settings, or be determined by the external capacitor at CRST pin.

The SGM850xQ has an adjustable watchdog timer and a special watchdog output (nWDO). The nWDO can be used to locate the fault causes. The watchdog timeout period can either be determined by factory default settings, or be determined by the external capacitor at CWD pin. The watchdog function can be closed through SETx (x = 0, 1) pin to prevent some specific watchdog timeout events.

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

The SGM850xQ is available in a Green TDFN-3×3-10BL package. It features wettable flanks for easy optical inspection.

FEATURES

AEC-Q100 Qualified for Automotive Applications
- Device Temperature Grade 1
- TA = -40℃ to +125℃
Functional Safety
- Available Documentation in the Design of Functional Safety Systems
High Threshold Accuracy: 1.4% (MAX)
Precision Over-Voltage and Under-Voltage Monitoring:
- Voltage Rails from 0.4V to 5.0V
- Fault Windows Threshold: ±4% for SGM850A-xQ and ±7% for SGM850B-xQ
- 0.7% Hysteresis
Factory-Programmed Precision Watchdog and Reset Timers:
- ±15% Accurate Watchdog and Reset Delays
Watchdog Disable Feature
Adjustable Watchdog Timeout Period
Adjustable Reset Delay
Operating Voltage Range: 1.6V to 6.5V
Low Supply Current: 9μA (TYP)
Active-Low, Open-Drain Outputs
Available in a Green Small TDFN-3×3-10BL Package

APPLICATIONS

Driver Monitoring
Automotive Telematics Control Unit
Digital Cockpit Processing Unit
On-board & Wireless Charger (OBC)
ADAS Domain Controller
Microcontrollers and DSPs

Ordering Information

Part Number	Status	Package	Pins	Pd-Free	RoHS	REACH	Green	MSL Rating	Operating Temperature Range	Material Content	Reliability Report
SGM850A-0.4QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850A-0.9QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850A-1.2QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850A-1.8QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850A-2.5QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850A-3.0QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850A-3.3QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View
SGM850A-5.0QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View
SGM850B-0.4QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View
SGM850B-0.9QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850B-1.2QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View
SGM850B-1.8QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View
SGM850B-2.5QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850B-3.0QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES		-40℃ to +125℃	View	View
SGM850B-3.3QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View
SGM850B-5.0QTHS10G/TR	Active	TDFN-3×3-10BL	10	YES	YES	YES	YES	MSL1	-40℃ to +125℃	View	View

* 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.