| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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195 pcs
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195 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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| Manufacturer Name | |
| Battery Chemistry | |
| Fault Protection | |
| Function | |
| Interface | |
| Mounting Type | |
| Number of Cells | |
| Operating Temperature | |
| Operating Voltage | |
| Supplier Device Package | |
| Supplier Package |
The MAX14921ECS+ is a sophisticated battery measurement analog front-end (AFE) device from Analog Devices / Maxim Integrated, capable of accurately monitoring up to 16 cells. It provides level shifting for primary/secondary battery packs up to +65V maximum. The device simultaneously samples all cell voltages, enabling precise state-of-charge and source-resistance determination with a maximum cell voltage error of ±0.5mV.
Featuring a low-noise, low-offset amplifier, the MAX14921ECS+ buffers differential cell voltages up to +5V, supporting various lithium-ion chemistries, including those with flat discharge curves like lithium-metal phosphate. Integrated diagnostics offer open-wire detection, undervoltage/overvoltage alarms, and thermal shutdown. Communication is handled via a daisy-chainable SPI interface.
This IC is ideal for applications such as industrial and telecom battery backup systems, energy storage packs, and e-transportation energy packs. It operates over an extended temperature range of -40°C to +85°C and is housed in an 80-pin TQFP package suitable for surface mounting.
Key features include self-calibration, integrated cell-balancing FET drivers, and an integrated 5V LDO. The device also supports a low-power shutdown mode with minimal current draw.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.75 | $0.75 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The MAX14921ECS+ has a minimum operating voltage of +6V.
The MAX14921ECS+ is supplied in an 80-TQFP (12x12) package and is designed for surface mount applications.
The MAX14921ECS+ operates within a temperature range of -40°C to 85°C (TA).
The MAX14921ECS+ can monitor 1 to 16 battery cells.
The MAX14921ECS+ has a maximum cell voltage error of ±0.5mV.
The MAX14921ECS+ uses an SPI interface, which is daisy-chainable.
The MAX14921ECS+ includes fault protection for over temperature and over/under voltage conditions.