MAX22210 datasheet(12/24 Pages) AD

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Pin Description (continued)

NAME

FUNCTION

TYPE

TQFN

TSSOP

27, 28

26, 27

ISEN_

Current Sense Output Monitor.

Output

Logic Input Pin. Enable Pin.

Logic Input

VCP

Charge Pump Output. Connect a 1μF capacitor between VCP and

VM as close as possible to the device.

Output

CP1

Charge Pump Flying Capacitor Pin1. Connect a 22nF capacitor

between CP1 and CP2 as close as possible to the device.

Output

CP2

Charge Pump Flying Capacitor Pin2. Connect a 22nF capacitor

between CP1 and CP2 as close as possible to the device.

Output

SLEEP

Active Low Sleep Pin.

Logic Input

31, 32

2, 3

DECAY_

Logic Input. Set the Decay Mode.

Logic Input

HFS

Logic Input. Set Output Current Full scale.

Logic Input

STEP

Logic Input. Indexer Step logic input. Indexer advances on rising

edges of the STEP pin.

Logic Input

DIR

Logic Input. Direction Pin.

Logic Input

2, 3, 7

5, 6, 10

MODE_

Logic Input Pins. Set the Decay Mode for the current drive

regulation circuit.

Logic Input

PGND

Power GND. Connect to Ground Plane. The thermal PAD (EP) is

also the electrical power GND pin and must be properly

connected to GND.

MAX22210

36V, 3.8A Stepper Motor Driver

with Integrated Current Sense

and 128 Microstep Indexer

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