MAX16126TCA+T by Analog Devices

Load-Dump/Reverse-Voltage Protection Circuits


The MAX16126/MAX16127 load-dump/reverse-voltage protection circuits protect power supplies from damaging input voltage conditions, including overvoltage, reverse-voltage, and high-voltage transient pulses. Using a built-in charge pump, the devices control two external back-to-back n-channel MOSFETs that turn off and isolate downstream power supplies during damaging input conditions, such as an automotive load-dump pulse or a reverse-battery condition. Operation is guaranteed down to 3V to ensure proper operation during automotive cold-crank conditions. These devices feature a flag output (active-low FLAG) that asserts during fault conditions. For reverse-voltage protection, external back-to-back MOSFETs outperform the traditional reverse-battery diode, minimizing the voltage drop and power dissipation during normal operation. The MAX16126/MAX16127 use external resistors to adjust the overvoltage and undervoltage comparator thresholds for maximum flexibility. The MAX16127 provides limiter-mode fault management for overvoltage and thermal shutdown conditions; whereas the MAX16126 provides switch-mode fault management for overvoltage and thermal shutdown conditions. In the limiter mode, the output voltage is limited and active-low FLAG is asserted low during a fault. In the switch mode, the external MOSFETs are switched off and active-low FLAG is asserted low after a fault. The switch mode is available in four options: latch mode, 1 autoretry mode, 3 autoretry mode, and always autoretry mode. The MAX16126/MAX16127 are available in 12-pin TQFN packages. These devices operate over the automotive temperature range (-40°C to +125°C).

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Prices starting from US$1.69

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Richardson RFPD
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Features

Increases Protection of Sensitive Electronic Components in Harsh Environments -36V to +90V Wide Input-Voltage Protection Range Fast Gate Shutoff During Fault Conditions with Complete Load Isolation Thermal-Shutdown Protection Active-Low FLAG Output Identifies Fault Condition
-36V to +90V Wide Input-Voltage Protection Range
Fast Gate Shutoff During Fault Conditions with Complete Load Isolation
Thermal-Shutdown Protection
Active-Low FLAG Output Identifies Fault Condition
AEC-Q100 Automotive Qualified Operates Down to +3V, Riding Out Cold-Crank Conditions -40°C to +125°C Operating Temperature Range
Operates Down to +3V, Riding Out Cold-Crank Conditions
-40°C to +125°C Operating Temperature Range
Integration Reduces Solution Size Internal Charge-Pump Circuit Enhances External n-Channel MOSFETs Adjustable Undervoltage/Overvoltage Thresholds 3mm x 3mm, 12-Pin TQFN Package
Internal Charge-Pump Circuit Enhances External n-Channel MOSFETs
Adjustable Undervoltage/Overvoltage Thresholds
3mm x 3mm, 12-Pin TQFN Package
Reduced Power Dissipation Compared to Discrete Solutions Minimal Operating Voltage Drop for Reverse- Voltage Protection 350µA (max) Supply Current and 100µA (max) Shutdown Current at 30V Input
Minimal Operating Voltage Drop for Reverse- Voltage Protection
350µA (max) Supply Current and 100µA (max) Shutdown Current at 30V Input

Specifications

# Channels 1
VIN (V) (min) 3
VIN (V) (max) 90
Over Voltage Trip Level (V) Adjustable
Under Voltage Lockout (V) Adjustable
VGATE (V) 9
Over Volt. Flag Open-Drain
Oper. Temp. (°C) -40 to +125
Package/Pins TQFN/12
BudgetaryPrice (See Notes) 1.31

Last 6 months Inventory & Pricing History



MAX16126TCA+T Special Function by Analog Devices

LOAD DUMP/REV VOLT PROTECTION CKT TQFN

Status: Unknown
Series: -
RoHS: Unknown
Download Datasheet Visit Manufacturer Site View Pricing & Stock

Specifications

IC Function Overvoltage Undervoltage and Reverse Supply Protection Controller
Supply Voltage Min 3V
Supply Voltage Max 30V
IC Package Type TQFN
No. of Pins 12Pins
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard AEC-Q100
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Last 6 months Inventory & Pricing History


Alternative Descriptions

Load-Dump/Reverse-Voltage Prot | Analog Devices
Load Dump/Rev Volt Protection Ckt, Tqfn | Newark Electronics
LOAD DUMP/REV VOLT PROTECTION CKT, TQFN | element14
Load-Dump/Reverse-Voltage Protection | Richardson RFPD

Frequently Asked Questions

Where can I find additional details, specifications and documents for a MAX16126TCA+T ?

Additional datasheets, footprints and schematics for MAX16126TCA+T are listed on our Part Details page. You can also find images and similar parts to MAX16126TCA+T on this page.

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Is the MAX16126TCA+T RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MAX16126TCA+T have stock available?

Authorised distributors including Analog Devices, Rochester Electronics, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX16126TCA+T .

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