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Analog Devices MAX4820EUP+ — DC-DC Power Modules

MAX4820EUP+ SPI Relay Driver, 8-Channel Low-Side, 70mA

MPNMAX4820EUP+
End of Life

Maxim Integrated MAX4820EUP+, 8-channel low-side power driver, SPI interface, 2 Ohm typical Rds(on), 70mA per channel, 2.3V-5.5V load supply, 20-TSSOP-EP, -40 to 150°C.

$5.84Ref. price · indicative, final on quote
Packaging20-TSSOP (0.173", 4.40mm Width) Exposed Pad
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX4820EUP+ specifications
ParameterValue
Output typeN-Channel
TypeRelay, Solenoid Driver
MountingSurface Mount
Voltage - load2.3V ~ 5.5V
Output current70mA
I/O channels8
InterfaceSPI
Operating temperature-40°C ~ 150°C (TJ)
PackageTube
Rds on2Ohm
Case20-TSSOP (0.173\", 4.40mm Width) Exposed Pad
Output configurationLow Side
Ratio - Input:Output1:8

Product details

Eight-channel low-side driver with SPI control

The Maxim Integrated MAX4820EUP+ is an 8-channel low-side power driver for relays, solenoids, and other inductive loads. It uses an SPI interface to program the eight outputs individually. Each N-channel output sinks up to 70 mA with a typical on-resistance of 2 Ohms, in a 20-TSSOP exposed-pad package. The load supply range is 2.3 V to 5.5 V.

Rated for junction temperatures from -40°C to 150°C, the MAX4820EUP+ suits under-hood automotive, industrial oven controls, and outdoor telecom enclosures where ambient heat exceeds typical commercial limits. The 150°C junction ceiling gives headroom for self-heating from simultaneous channel activation in a confined board space.

Frequently asked questions

What is the difference between MAX4820EUP+ and MAX4820EUP+T?

The suffix indicates the shipping medium: the MAX4820EUP+ ships in a tube, while the MAX4820EUP+T variant ships in tape-and-reel. The silicon and package are identical.

Can MAX4820EUP+ drive 12V relays?

No — the load supply range is 2.3 V to 5.5 V, so 12 V relay coils exceed the maximum rating. For 12 V loads, a driver with a higher voltage rating is needed.

Is MAX4820EUP+ compatible with 3.3V SPI?

Yes, the SPI interface operates within the 2.3 V to 5.5 V load supply range, so 3.3 V logic levels are directly compatible.

What is the typical application for MAX4820EUP+?

The MAX4820EUP+ is designed as a relay and solenoid driver for industrial automation, automotive body control modules, and any application requiring eight low-side switched outputs with SPI command.