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Maxim > Solutions > RAID Data Storage Systems

Voltage Sequencing and Tracking

DATA SHEETS
Display Title / Parts Key Advantages
QV  PDF Dual-/Triple-Voltage, Power-Supply Sequencers/Supervisors
MAX6880, MAX6881, MAX6882, MAX6883
QV  PDF Dual-/Triple-Voltage, Power-Supply Trackers/Sequencers/Supervisors
MAX6877, MAX6878, MAX6879
QV  PDF Ultra-Small, Adjustable Sequencing/Supervisory Circuits
MAX6895, MAX6896, MAX6897, MAX6898, MAX6899
QV  PDF Pin-Selectable, Octal/Hex/Quad, Power-Supply Sequencers/Supervisors
MAX6892, MAX6893, MAX6894
QV  PDF EEPROM-Programmable, Octal/Hex/Quad, Power-Supply Sequencers/Supervisors
MAX6889, MAX6890, MAX6891
QV  PDF EEPROM-Programmable, Quad, Power-Supply Tracker/Sequencer Circuit
MAX6876

EEPROM-Programmable, Quad, Power-Supply Tracker/Sequencer Circuit
QV  PDF EEPROM-Programmable Hex/Quad Power-Supply Sequencers/Supervisors with ADC
MAX6870, MAX6871

EEPROM-Programmable Hex/Quad Power-Supply Sequencers/Supervisors with ADC
QV  PDF Dual-Voltage µP Supervisory Circuits with Sequenced Reset Outputs
MAX6391, MAX6392
QV  PDF SOT23 Power-Supply Sequencers
MAX6819, MAX6820

Power Supply Sequencers for Dual/Multi-Voltage Systems Control Power On/Power Off Characteristics for Higher System Reliability



Key Specifications:   Microprocessor Supervisors
Part Number Number of Monitored Voltages Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Nom. Watchdog Timeout Range Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Industry Qualified Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX6889  8 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain
Open Drain with Internal Pull-Up 		Open Drain
Push-Pull 		15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		1s to 2s
<1s
>2s 		Adjustable Reset Input
High Accuracy (1%)
High Voltage (>6V)
Manual Reset 		1 2000  -  THIN QFN/32  -  -40 to +85
MAX6890  5
6 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain
Open Drain with Internal Pull-Up 		Open Drain
Push-Pull 		15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		1s to 2s
<1s
>2s 		Adjustable Reset Input
High Accuracy (1%)
High Voltage (>6V)
Manual Reset 		1 2000  -  THIN QFN/28  -  -40 to +85
MAX6891  4 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain
Open Drain with Internal Pull-Up 		Open Drain
Push-Pull 		15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		1s to 2s
<1s
>2s 		Adjustable Reset Input
High Accuracy (1%)
High Voltage (>6V)
Manual Reset 		1 2000  -  THIN QFN/20  -  -40 to +85
MAX6892  8 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain  -  Adjustable Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		Adjustable Adjustable Reset Input
High Accuracy (1%)
Manual Reset 		1 2000  -  THIN QFN/32  -  -40 to +85
MAX6893  5
6 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain  -  Adjustable Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		Adjustable Adjustable Reset Input
High Accuracy (1%)
Manual Reset 		1 2000  -  THIN QFN/28  -  -40 to +85
MAX6894  4 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain  -  Adjustable Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		Adjustable Adjustable Reset Input
High Accuracy (1%)
Manual Reset 		1 2000  -  THIN QFN/28  -  -40 to +85
MAX6877  3  -  Open Drain  -  Adjustable No Watchdog  -  Manual Reset  -  2000  -  THIN QFN/24  -  -40 to +85
MAX6878  2  -  Open Drain  -  Adjustable No Watchdog  -  Manual Reset  -  2000  -  THIN QFN/24  -  -40 to +85
MAX6879  2  -   -   -  Adjustable No Watchdog  -   -   -  2000  -  THIN QFN/16  -  -40 to +85
MAX6880  3  -  Open Drain  -  Adjustable No Watchdog  -  Manual Reset  -  2000  -  THIN QFN/24  -  -40 to +85
MAX6881  3  -   -   -   -  No Watchdog  -   -   -  2000  -  THIN QFN/16  -  -40 to +85
MAX6882  2  -  Open Drain  -  Adjustable No Watchdog  -  Manual Reset  -  2000  -  THIN QFN/16  -  -40 to +85
MAX6883  2  -   -   -   -  No Watchdog  -   -   -  2000  -  THIN QFN/16  -  -40 to +85
MAX6895  1 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog  -  Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6896  1 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog  -  Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6897  1 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Open Drain 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog  -  Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6898  1 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog  -  Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Automotive - General MicroDFN/6 2 -40 to +125
MAX6899  1 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog  -  Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6876  4 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain Open Drain 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
>1s 		No Watchdog  -  Adjustable Reset Input
Manual Reset 		1.5 2000  -  THIN QFN/36  -  -40 to +85
MAX6870  5
6 		0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain
Push-Pull 		Open Drain
Push-Pull 		15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s 		Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		1s to 2s
<1s
>2s 		Adjustable Reset Input
High Accuracy (1%)
High Voltage (>6V)
Manual Reset
Negative Voltage
Overvoltage/Window Monitor
Power Fail Comparator 		1 2000  -  THIN QFN/32  -  -40 to +85
MAX6871  4 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain
Push-Pull 		Open Drain
Push-Pull 		15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s 		Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		1s to 2s
<1s
>2s 		Adjustable Reset Input
High Accuracy (1%)
High Voltage (>6V)
Manual Reset
Negative Voltage
Overvoltage/Window Monitor
Power Fail Comparator 		1 2000  -  THIN QFN/32  -  -40 to +85
MAX6391  2 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  300ms to 1s
85ms to 300ms
>1s
Adjustable 		No Watchdog  -  Adjustable Reset Input 1.5 25  -  SOT-23/8 9 -40 to +85
0 to +70
MAX6392  2 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain
Push-Pull 		 -  300ms to 1s
85ms to 300ms
>1s
Adjustable 		No Watchdog  -  Adjustable Reset Input
Manual Reset 		1.5 25  -  SOT-23/8 9 -40 to +85
0 to +70
See All Microprocessor Supervisors (435)

Key Specifications:   Sequencers/Trackers
Part Number Option Interface Number of Input Channels Maximum Operating Voltage Range (V) Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX6889  Sequence I2C/SMBus 8 >6 THIN QFN/32  -  -40 to +85
MAX6890  Sequence I2C/SMBus 6 >6 THIN QFN/28  -  -40 to +85
MAX6891  Sequence I2C/SMBus 4 >6 THIN QFN/20  -  -40 to +85
MAX6892  Sequence Pin-Selectable 8 <6 THIN QFN/32  -  -40 to +85
MAX6893  Sequence Pin-Selectable 6 <6 THIN QFN/28  -  -40 to +85
MAX6894  Sequence Pin-Selectable 4 <6 THIN QFN/28  -  -40 to +85
MAX6877  Sequence
Sequence and Track
Track 		Factory Fixed
R/C Adjustable 		3 <6 THIN QFN/24  -  -40 to +85
MAX6878  Sequence
Sequence and Track
Track 		Factory Fixed
R/C Adjustable 		2 <6 THIN QFN/24  -  -40 to +85
MAX6879  Sequence
Sequence and Track
Track 		Factory Fixed
R/C Adjustable 		2 <6 THIN QFN/16  -  -40 to +85
MAX6880  Sequence Factory Fixed
R/C Adjustable 		3 <6 THIN QFN/24  -  -40 to +85
MAX6881  Sequence Factory Fixed
R/C Adjustable 		3 <6 THIN QFN/16  -  -40 to +85
MAX6882  Sequence Factory Fixed
R/C Adjustable 		2 <6 THIN QFN/16  -  -40 to +85
MAX6883  Sequence Factory Fixed
R/C Adjustable 		2 <6 THIN QFN/16  -  -40 to +85
MAX6895  Sequence Factory Fixed
R/C Adjustable 		1 <6 MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6896  Sequence Factory Fixed
R/C Adjustable 		1 <6 MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6897  Sequence Factory Fixed
R/C Adjustable 		1 <6 MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6898  Sequence Factory Fixed
R/C Adjustable 		1 <6 MicroDFN/6 2 -40 to +125
MAX6899  Sequence Factory Fixed
R/C Adjustable 		1 <6 MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6876  Sequence
Sequence and Track
Track 		I2C/SMBus 4 <6 THIN QFN/36  -  -40 to +85
MAX6870  Sequence I2C/SMBus 6 >6 THIN QFN/32  -  -40 to +85
MAX6871  Sequence I2C/SMBus 4 >6 THIN QFN/32  -  -40 to +85
MAX6391  Sequence Factory Fixed
R/C Adjustable 		2 <6 SOT-23/8 9 -40 to +85
0 to +70
MAX6392  Sequence Factory Fixed
R/C Adjustable 		2 <6 SOT-23/8 9 -40 to +85
0 to +70
MAX6819  Sequence Factory Fixed
R/C Adjustable 		2 <6 SOT-23/6 9 -40 to +125
-40 to +85
0 to +70
MAX6820  Sequence Factory Fixed
R/C Adjustable 		2 <6 SOT-23/6 9 -40 to +125
-40 to +85
0 to +70
See All Sequencers/Trackers (50)

Key Specifications:   Supervisors (1 Monitored Voltage)
Part Number Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Supervisor Functions Industry Qualified Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX6895  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Multivoltage Monitor
Sequencer/ Tracker
Simple Reset/ Power-On Reset
Voltage Detector/ Battery Monitor 		Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6896  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Push-Pull  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Multivoltage Monitor
Sequencer/ Tracker
Simple Reset/ Power-On Reset
Voltage Detector/ Battery Monitor 		Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6897  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Open Drain 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Multivoltage Monitor
Sequencer/ Tracker
Simple Reset/ Power-On Reset
Voltage Detector/ Battery Monitor 		Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
MAX6898  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain  -  15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Multivoltage Monitor
Sequencer/ Tracker
Simple Reset/ Power-On Reset
Voltage Detector/ Battery Monitor 		Automotive - General MicroDFN/6 2 -40 to +125
MAX6899  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		 -  Push-Pull 15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		No Watchdog Adjustable Reset Input
Overvoltage/Window Monitor 		1.8 20 Multivoltage Monitor
Sequencer/ Tracker
Simple Reset/ Power-On Reset
Voltage Detector/ Battery Monitor 		Automotive - General MicroDFN/6
SOT-23/6 		2 -40 to +125
See All Supervisors (1 Monitored Voltage) (275)

Key Specifications:   Supervisors (2 Monitored Voltages)
Part Number Reset Threshold Range (V) Active-Low Reset Output Min. Reset Timeout Range Watchdog Feature Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Supervisor Functions Package Smallest Available Package (max w/pins) (mm2) Operating Temp. Range (°C)
MAX6878   -  Open Drain Adjustable No Watchdog Manual Reset  -  2000 Multivoltage Monitor
Sequencer/ Tracker 		THIN QFN/24  -  -40 to +85
MAX6879   -   -  Adjustable No Watchdog  -   -  2000 Multivoltage Monitor
Sequencer/ Tracker 		THIN QFN/16  -  -40 to +85
MAX6882   -  Open Drain Adjustable No Watchdog Manual Reset  -  2000 Multivoltage Monitor
Sequencer/ Tracker 		THIN QFN/16  -  -40 to +85
MAX6883   -   -   -  No Watchdog  -   -  2000 Multivoltage Monitor
Sequencer/ Tracker 		THIN QFN/16  -  -40 to +85
MAX6391  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain 300ms to 1s
85ms to 300ms
>1s
Adjustable 		No Watchdog Adjustable Reset Input 1.5 25 Multivoltage Monitor
Sequencer/ Tracker 		SOT-23/8 9 -40 to +85
0 to +70
MAX6392  0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5 		Open Drain
Push-Pull 		300ms to 1s
85ms to 300ms
>1s
Adjustable 		No Watchdog Adjustable Reset Input
Manual Reset 		1.5 25 Multivoltage Monitor
Sequencer/ Tracker 		SOT-23/8 9 -40 to +85
0 to +70
See All Supervisors (2 Monitored Voltages) (87)

Key Specifications:   Supervisors (4 Monitored Voltages)
Part Number Interface Reset Threshold Range (V) Active-Low Reset Output Active-High Reset Output Min. Reset Timeout Range Watchdog Feature Nom. Watchdog Timeout Range Supervisor Features Reset Thresh. Acc. (% @+25°C) Max. ICC (µA) Supervisor Functions Operating Temp. Range (°C)
MAX6891  I2C/SMBus 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain
Open Drain with Internal Pull-Up 		Open Drain
Push-Pull 		15ms to 85ms
1ms to 15ms
300ms to 1s
85ms to 300ms
<1ms
>1s
Adjustable 		Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		1s to 2s
<1s
>2s 		Adjustable Reset Input
High Accuracy (1%)
High Voltage (>6V)
Manual Reset 		1 2000 Multivoltage Monitor
Sequencer/ Tracker 		-40 to +85
MAX6894  Pin-Selectable 0 to 1.2
1.2 to 1.8
1.8 to 2.5
2.5 to 3.3
3.3 to 5.5
>=5.5 		Open Drain  -  Adjustable Input (WDI)
Input/Output (WDI/WDO)
Extended Setup Period 		Adjustable Adjustable Reset Input
High Accuracy (1%)
Manual Reset 		1 2000 Multivoltage Monitor
Sequencer/ Tracker 		-40 to +85
See All Supervisors (4 Monitored Voltages) (16)


         



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