MAX16021PTEL+

Obsolete

Analog Devices Inc./Maxim Integrated

LOW-POWER ΜP SUPERVISORY CIRCUITS WITH BATTERY-BACKUP CIRCUIT AND CHIP-ENABLE GATING

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MAX16021PTEL+

Obsolete

Analog Devices Inc./Maxim Integrated

LOW-POWER ΜP SUPERVISORY CIRCUITS WITH BATTERY-BACKUP CIRCUIT AND CHIP-ENABLE GATING

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Description Specifications Series Pricing CAD Documents

Description

General part information

MAX16021 Series

The MAX16016/MAX16020/MAX16021 supervisory circuits monitor power supplies, provide battery-backup control, and chip-enable (CE) gating to write protect memory in microprocessor (µP)-based systems. These low-power devices improve system reliability by providing several supervisory functions in a small, single integrated solution.The MAX16016/MAX16020/MAX16021 perform four basic system functions:Provide a µP reset output during VCCsupply power-up, power-down, and brownout conditions.Control VCCto battery-backup switching internally to maintain data or low-power operation for memories, real-time clocks (RTCs), and other digital logic when the main power is removed.Provide memory write protection through internal chip-enable gating during brownout.Provide a combination of additional supervisory functions listed in theFeaturessection in the full data sheet.The MAX16016/MAX16020/MAX16021 operate from a 1.53V to 5.5V supply voltage and offer fixed reset thresholds for monitoring 5V, 3.3V, 3V, 2.5V, and 1.8V systems. Each device is available with either a push-pull or open-drain reset output.The MAX16016/MAX16020/MAX16021 are available in small TDFN/TQFN packages and are fully specified for an operating temperature range of -40°C to +85°C.ApplicationsGPS SystemsIndustrial ControlMain/Backup Power for RTCs, CMOS MemoriesPoint-of-Sale EquipmentPortable/Battery EquipmentSet-Top Boxes

Technical Specifications

Parameters and characteristics for this part

Specification	MAX16021PTEL+

Mounting Type	Surface Mount
Number of Voltages Monitored	1
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Output	Open Drain, Open Collector
Package / Case	16-WQFN Exposed Pad
Package Length	4 mm
Package Name	16-TQFN
Package Width	4 mm
Reset	Active High, Active Low
Reset Timeout (Minimum)	145 ms
Type	Simple Reset/Power-On Reset
Voltage - Threshold	4.684 V

MAX16021 Series

Part	Reset	Operating Temperature (Max)	Operating Temperature (Min)	Number of Voltages Monitored	Type	Mounting Type	Package Length	Package Name	Package Width	Reset Timeout (Minimum)	Output	Voltage - Threshold	Package / Case
Analog Devices Inc./Maxim Integrated MAX16021LTET+	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Push-Pull Totem Pole	3.1 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021LTET+T	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Push-Pull Totem Pole	3.1 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021PTES+	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Open Collector Open Drain	2.946 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021LTES+	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Push-Pull Totem Pole	2.946 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021LTES+T	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Push-Pull Totem Pole	2.946 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021PTES+T	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Open Collector Open Drain	2.946 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021PTEW+	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Open Collector Open Drain	1.661 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021PTER+	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Open Collector Open Drain	2.64 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021LTER+	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Push-Pull Totem Pole	2.64 V	16-WQFN Exposed Pad
Analog Devices Inc./Maxim Integrated MAX16021LTEY+	Active High Active Low	85 °C	-40 °C	1	Simple Reset/Power-On Reset	Surface Mount	4 mm	16-TQFN	4 mm	145 ms	Push-Pull Totem Pole	2.192 V	16-WQFN Exposed Pad

Pricing

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

MAX16021 Reliability Data

Package Drawing - 16-LFCSP-4X4X0.75