ATS696PSM datasheet(4/17 Pages) ALLEGRO

4 / 17 page

Position Sensor IC

with Speed and Direction Output

ATS696PSM

Allegro MicroSystems, LLC

955 Perimeter Road

Manchester, NH 03103-3353 U.S.A.

www.allegromicro.com

OPERATING CHARACTERISTICS: TA and VCC within specification, unless otherwise noted

Characteristics

Symbol

Test Conditions

Min.

Typ.

Max.

Unit

ELECTRICAL CHARACTERISTICS

Supply Voltage

VCC

Operating, TJ < TJ(max)

4.5

–

Supply Current

ICC

–

Supply Zener Clamp Voltage

VZsupply

ICC = ICC(MAX) + 3 mA

–

Reverse Supply Zener Clamp Voltage

VRZsupply

ICC = –3 mA

–

–18

POWER-ON CHARACTERISTICS

Power-On State

POS

off (high voltage)

–

Power-On Time

tPO

fOP < 100 Hz, VCC > VCC(MIN)

–

SLEEP MODE CHARACTERISTICS

Reduced Current Operation Threshold

VSLEEP

Falling voltage threshold to enable reduced

current operation mode

–

3.9

–

Reduced Current Consumption

IRED

Current draw while in sleep mode

–

Normal Current Operation Threshold

VWAKE

Rising voltage threshold to disable reduced

current operation mode

–

4.3

–

Reset Threshold

VRST

Falling voltage threshold to cause the part to reset

–

3.5

–

Wake-Up Time [1]

tWAKE

–

100

–

μs

OUTPUT STAGE

Output On Voltage

VOUT(SAT)

Output = on state, ISINK = 5 mA

–

300

Output = on state, ISINK = 20 mA

–

950

Output Off Voltage

VOUT(OFF)

Continuous

–

Output Zener Clamp Voltage

VZoutput

IOUT = 3 mA

–

Output Current Limit

IOUT(LIM)

VOUT = 12 V, TJ < TJ(max)

Output On Current

IOUT(ON)

–

Output Leakage Current

IOUT(OFF)

VOUT = 18 V, Output = off state (VOUT = High)

–

µA

Pulse Width (tW) [2]

tW(FWD)

Forward running mode;

measured at 50%; RPU = 1 kΩ,

VPU = 5 V

Option F45

38.3

51.7

µs

Option F22

19.3

22.5

25.7

µs

tW(REV)

Reverse running mode;

measured at 50%;

RPU = 1 kΩ, VPU = 5 V

Option R90

76.5

103.5

µs

Option R135

114.8

135

155.2

µs

Option R180

153

180

207

µs

Option R45

38.3

51.7

µs

Pulse Width Ratio [3]

tW(REV) /

tW(FWD)

VPU = 5 V, RPU = 1 kΩ; measured at 50%

1.7

2.0

2.4

–

Minimum Separation Between

Consecutive Output Pulses

tOUTsep

Includes separation between

pulses during a direction change

Option F45

30.6

41.4

µs

Option F22

15.3

20.7

µs

Output Rise Time

10%-90%, RPU = 1 kΩ

–

µs

Output Fall Time

Measured 90% to 10% of

VOUT; VPU = 5 V, RPU = 1 kΩ

Fast Option

0.37

0.70

0.99

µs

Medium Option

1.6

4.25

µs

Slow Option

3.09

5.80

8.22

µs

Output Delay Time [4]

1 kHz sinusoidal input signal (default fall time option)

µs

[1]

Wake-Up Time is illustrated in Figure 11.

[2]

Pulse widths measured at 50% threshold on both rising and falling edges.

[3]

This is the pulse width ratio for the default pulse width options of tW(FWD) = 45 μs and tW(REV) = 90 μs.

[4]

Time between magnetic signal switchpoint crossing and electrical output signal reaching 90% of VOUT(High).

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