MAX16127TC+ 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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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) 1.54


MAX16127TC+ Power Management ICs - PMIC by Analog Devices

VOLT SUPERVISOR 30V TQFN-12

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

Specifications

Threshold Voltage 1.225V
No. of Supervisors / Monitors 1Monitors
Supply Voltage Min 3V
Supply Voltage Max 30V
Reset Type Open-Drain
Digital IC Case TQFN
No. of Pins 12Pins
Delay Time -
Operating Temperature Min -40°C
Operating Temperature Max 125°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited

Alternative Descriptions

Load-Dump/Reverse-Voltage Prot | Analog Devices
VOLT SUPERVISOR, 30V, TQFN-12 | element14

Frequently Asked Questions

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Is the MAX16127TC+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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