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MAX14921ECS+T The MAX14921ECS+T is a 16-cell battery monitor AFE from Analog Devices / Maxim Integrated. It features high accuracy with ±0.5mV cell voltage error and an SPI interface.
Mfr Part #:

MAX14921ECS+T

Available from 3 distributors
Mfr Name: Analog Devices / Maxim Integrated
Analog Devices / Maxim Integrated
The MAX14921ECS+T is a 16-cell battery monitor AFE from Analog Devices / Maxim Integrated. It features high accuracy with ±0.5mV cell voltage error and an SPI interface.
✓ Total Stock: 10,408 pcs
$ Price Range: $0.75

MAX14921ECS+T Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Romaks Technologies ✓
Non-Authorised Inventory information
7,861 pcs
On Request
7861 pcs On Request 1 On Request On Request On Request On Request On Request
Xingangxin ✓
Non-Authorised Inventory information
1,480 pcs
On Request
1480 pcs On Request 1 On Request On Request On Request On Request On Request
Rayichip ✓
Non-Authorised Inventory information
1,067 pcs
On Request
1067 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

MAX14921ECS+T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Battery Chemistry
Fault Protection
Function
Interface
Mounting Type
Number of Cells
Operating Temperature
Supplier Device Package
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MAX14921ECS+T Description

Short technical summary and product information.

The MAX14921ECS+T is a high-accuracy analog front-end (AFE) device designed for monitoring battery packs up to 16 cells. It provides precise cell voltage sampling with a maximum error of ±0.5mV, making it suitable for chemistries with flat discharge curves like lithium-metal phosphate.

 

This device features a daisy-chainable SPI interface for control and communication. Integrated diagnostics include open-wire detection, undervoltage/overvoltage alarms, and thermal shutdown. The MAX14921ECS+T operates across an extended temperature range of -40°C to +85°C and is housed in an 80-pin TQFP package for surface mounting.

 

Ideal for industrial battery backup systems, energy storage packs, and e-transportation applications, this AFE simplifies data conversion by level-shifting all cell voltages to a ground reference with unity gain. It supports passive cell balancing through external FET drivers and includes an integrated 5V LDO.

MAX14921ECS+T Quick Information

Product Type: Battery Monitor AFE
Canonical Name: MAX14921ECS+T Battery Monitor AFE
Subcategory: Analog Front-End (AFE)

MAX14921ECS+T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MAX14921ECS+T Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

MAX14921ECS+T Features

  • High accuracy ±0.5mV cell voltage error.
  • Simultaneous cell voltage sampling.
  • Integrated diagnostics for fault detection.
  • SPI interface for control.
  • 16-cell monitoring capability.

MAX14921ECS+T Applications

  • Industrial battery backup systems.
  • Energy storage pack monitoring.
  • E-transportation energy packs.
  • Telecom battery backup systems.

MAX14921ECS+T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating temperature range of the MAX14921ECS+T?

The MAX14921ECS+T operates within a temperature range of -40°C to 85°C.

What is the package type for the MAX14921ECS+T?

The MAX14921ECS+T is available in an 80-TQFP package.

What is the cell voltage error for this battery monitor?

The maximum cell voltage error for this battery monitor is ±0.5mV.

What is the supported cell voltage range?

The supported cell voltage range is 0.5V to 4.5V.

How many cells can the MAX14921ECS+T monitor?

The MAX14921ECS+T can monitor 1 to 16 cells.

What interface does the MAX14921ECS+T use?

The MAX14921ECS+T uses an SPI interface.

What fault protections are included?

The device includes fault protection for over temperature and over/under voltage conditions.

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