8936 데이터 시트보기 (PDF) - Allegro MicroSystems

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8936

VOICE COIL MOTOR DRIVER

Allegro MicroSystems 

8936

VOICE COIL MOTOR DRIVER

ELECTRICAL

CHARACTERISTICS

at

T=

A

+25°C,

V

CC

=

V

DD

=

5.0

V,

V

REF

=

V=

IN

2.0 V,

Load = 150 µH/3.5 Ω (unless otherwise noted).

Characteristic

Error Amplifier

Input Offset Voltage

Current Gain

Current Gain Linearity

Reference Voltage Range

Current-Sense Amplifier

Voltage Gain

Input Offset Voltage

Output Drivers

Output Saturation Voltage

(Source + Sink)

Retract Output Saturation Voltage

Output Current

Full Power Bandwidth

Window Comparator

Lower Trip Point

Upper Trip Point

Uncommitted Op Amp

Voltage Gain

Unity Gain Bandwidth

Max. Load Capacitance

Slew Rate

Output Voltage

Max. Output Current

Input Offset Voltage

Symbol

VIO

AiH

AiL

EL(adj)

VREF

AVD

ViO

VDS(SAT)

VDS(SAT)

IO

BW

VELIN

VELIN

AVS

BW

CLOAD

SR

VO

IO

VIO

Test Conditions

ILOAD = 0 mA

H GAIN ≥ 3.5 V

H GAIN ≤ 0.7 V

IOUT = 5 mA to 500 mA, Ai = AiL

IOUT = 5 mA to 500 mA, Ai = AiH

Rs = Rgm

ILOAD = 0 mA, Ai = AiL

ILOAD = 100 mA

ILOAD = 500 mA

IOUT ≤ 150 mA

Pulse Test, ±600 mA Limited

-3 dB

VIO = 100 mV

Negative current is defined as coming out of (sourcing) the specified device terminal.

Typical Data is for design information only.

Limits

Min. Typ. Max.

Units

— — 50

mV

7200 8000 8800

—

1800 2000 2200

—

—

— ±10

%

—

— ±10

%

1.5 — 2.5

V

— 1.0 —

—

—

— ±25

mV

— 0.25 —

V

— 1.5 —

V

— — 1.0

V

—

— ±500

mA

1.0 — —

kHz

1.12 1.25 1.38

V

2.47 2.75 3.03

V

— 91 —

— 1.0 —

40 — —

— 4.2 —

2.5 — 3.5

— ±250 —

—

— ±10

dB

MHz

pF

V/µs

V

µA

mV

Continued next page …

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