The MAX16050 monitors up to 5 voltages and sequences up to 4 voltages, while the MAX16051 monitors up to 6 voltages and sequences up to 5 voltages. These devices provide an adjustable delay as each supply is turned on and they monitor each power-supply voltage. When all of the voltages reach their final values and the reset delay timer expires, a power-on-reset (POR) output deasserts allowing the microcontroller (µC) to operate. If any voltage falls below its threshold, the reset output asserts and all voltage supplies are turned off. The MAX16050/MAX16051 can be daisy-chained to control a higher number of voltages in a system.
During a power-down event, the MAX16050/MAX16051 can reverse sequence the outputs. In this situation, each voltage is turned off sequentially until it reaches a 250mV level, at which point, the next supply is turned off. The
MAX16050/MAX16051 also provide internal pulldown circuitry that turns on during power-down, to help discharge large output capacitors.
The MAX16050/MAX16051 feature a charge-pump supply output that can be used as a pullup voltage for driving external n-channel MOSFETs and an overvoltage output that indicates when any of the monitored voltages exceeds its overvoltage threshold. The MAX16050 also provides three sequence control inputs for changing the sequence order, while the MAX16051 has a fixed sequence order.
The MAX16050/MAX16051 are available in a 28-pin (4mm x 4mm) thin QFN package and are fully specified over the -40°C to +85°C extended operating temperature range.
Key Features
Applications/Uses
Monitor Up to 6 Voltages/Sequence Up to 5 Voltages
Pin-Selectable Sequencing Order (MAX16050 Only)
Reverse-Sequencing Capability on Shutdown
Overvoltage Monitoring with Independent Output
±1.5% Threshold Accuracy
2.7V to 13.2V Operating Voltage Range
Charge Pump to Fully Enhance External n-Channel FETs
Capacitor-Adjustable Sequencing Delay
Fixed or Capacitor-Adjustable Reset Timeout
Internal 85mA Pulldowns for Discharging Capacitive Loads Quickly
Daisy-Chaining Capability to Communicate Across Multiple Devices
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
* Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices:
1-4
of
4
MAX16050
Free Sample
Buy
Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
Temp
RoHS/Lead-Free? Materials Analysis
MAX16050ETI+T
Land Pattern: Not Available
-40°C to +85°C
See data sheet
MAX16050ETI+
TQFN;28 pin;17 mm²
Outline Drawing: 21-0139 (PDF)
Land Pattern: 90-0035 (PDF)
Use pkgcode/variation: T2844+1*
Download
E-Mail
