MAX14588：1A Adjustable Overcurrent and Overvoltage Protector with High Accuracy

Industry's Most Integrated Current-Limit and Overvoltage-Protection Solutions for Up to 40V and 1A

The MAX14588 adjustable overvoltage and overcurrent protection device is ideal for protecting systems against positive and negative input voltage faults up to ±40V, and feature low 190mΩ (typ) RON integrated FETs. The adjustable overvoltage range is between 6V and 36V, while the adjustable undervoltage range is between 4.5V and 24V. The overvoltage lockout (OVLO) and undervoltage lockout (UVLO) thresholds are set using optional external resistors. The factory preset internal OVLO threshold is 33V (typ), and the preset internal UVLO threshold is 19V (typ). The MAX14588 also features programmable current-limit protection up to 1A. The device can be set for autoretry, latch-off, or continuous fault response when an overcurrent event occurs. Once current reaches the threshold, the MAX14588 turns off after 21ms (typ) blanking time, and stays off during the retry period when set to autoretry mode. The device latches off after the blanking time when set to latch-off mode. The device limits the current continuously when set to continuous mode. The MAX14588 also features reverse current and thermal shutdown protection. The MAX14588 is available in a small, 16-pin (3mm x 3mm) TQFN package. The MAX14588 operates over the -40°C to +125°C extended temperature range.

Key Features

Industrial Power Protection Increases Robustness
- Wide Input Supply Range: +4.5V to +36V
- Negative Input Tolerance to -36V
- Low RON 190mΩ (typ)
- Reverse Current Flow Control Input
- Thermal Overload Protection
- Extended -40°C to +125°C Temperature Range
Flexible Design Options
- Adjustable OVLO and UVLO Thresholds
- Programmable Forward-Current Limit: 0.15A to 1A
- Programmable Overcurrent Fault Response: Autoretry, Latch-Off, and Continuous
- Dual Enable Inputs: EN and High Voltage Active-Low HVEN
Saves Space
- 16-Pin, 3mm x 3mm, TQFN Package

MAX14588: Functional Diagram

Applications/Uses

Condition Monitoring
Factory Sensors
Process Analytics
Process Instrumentation
Sensor Systems
Weighing and Batching Systems

DataSheet

title	Download file
MAX14588 Data Sheet	MAX14588.pdf

Parametrics

Part Number	Channels	V_IN (V)	V_IN (V)	Internal Pwr. MOSFETs	R_ON (mΩ)	Current Limit (A)	Current Limit (A)	Current Limit Accuracy (%)	Fault Response	Reverse Current Protect.	Fault Indicator	Oper. Temp. (°C)	Package/Pins	Budgetary Price
Part Number	Channels	min	max	Internal Pwr. MOSFETs	typ	min	max	Current Limit Accuracy (%)	Fault Response	Reverse Current Protect.	Fault Indicator	Oper. Temp. (°C)	Package/Pins	See Notes
MAX14588	1	4.5	36	NMOS+PMOS	190	0.15	1	10	Latchoff	Yes	Yes	-40 to +125	TQFN-CU/16	$2.33 @1k