UDQ2936-120 Allegro MicroSystems, UDQ2936-120 Datasheet

UDQ2936-120

Manufacturer Part Number

UDQ2936-120

Description

3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER

Manufacturer

Allegro MicroSystems

Datasheet

1.UDQ2936-120.pdf (10 pages)

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Supply Voltage, V

Output Current, I

Input Voltage Range, V

Threshold Voltage, V

Package Power Dissipation,

Operating Temperature Range,

Storage Temperature Range,

Note: Output current rating may be limited by

duty cycle, ambient temperature, and heat

sinking. Under any set of conditions, do not

exceed the specified peak current and a junction

temperature of +150°C.

(continuous) . . . . . . . . . . . . . . . .

(peak) . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . -55

. . . . . . . . . . . . . . . . -20

. . . . . . . . . . . . . . . . . . . See Graph

OUT

≤

THS

. . . . . . . . . . . . . . . 45 V

. . . . . . . . . . . . 15 V

. . . -0.3 V to 15 V

C to +150

C to +85

2.0 A

3.0 A

2936

mutation and drive for three-phase brushless dc motors. Each of the

three outputs are rated at 45 V and ±2 A (±3 A peak), and include

internal ground clamp and flyback diodes. The driver also features

internal commutation logic, PWM current control, and thermal shut-

down protection.

linear Hall effect sensors. The commutating logic is programmed for

120° electrical separation. The UDN2936W-120 can replace the

original UDN2936W (60° electrical separation) by simply adding an

inverter at the H

current through an external sense resistor and pulse-width modulating

the source drivers. Voltage thresholds and hysteresis can be externally

set by the user. If desired, internal threshold and hysteresis defaults

(300 mV, 7.5 percent) can be used. The UDN2936W-120 also includes

braking and direction control. Internal protection circuitry prevents

crossover current when braking or changing direction.

and +85°C. To order, change the prefix from ‘UDN’ to ‘UDQ’.

supplied in 12-pin single in-line power-tab package. An external heat

sink may be required for high-current applications. The tab is at

ground potential and needs no insulation.

I 10 V to 45 V Operation

I ±3 A Peak Output Current

I Internal Clamp Diodes

I Internal PWM Current Control

I 120° Commutation Decoding Logic

I Thermal Shutdown Protection

I Compatible with Single-Ended or Differential Hall-Effect Sensors

I Braking and Direction Control

Always order by complete part number, e.g., UDN2936W-120 .

3-PHASE BRUSHLESS DC MOTOR

Combining logic and power, the UDN2936W-120 provides com-

The UDN2936W-120 is compatible with single-ended digital or

The UDN2936W-120 is also available for operation between -40°C

For maximum power-handling capability, the UDN2936W-120 is

input. Current control is accomplished by sensing

-120

CONTROLLER/DRIVER

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UDQ2936-120 Summary of contents

Page 1

Supply Voltage Output Current, I OUT ± (continuous ...

Page 3

HEAT SINK R θJA 6 12°C/W HEAT SINK R = 14°C/W θ FREE AIR 38°C/W θ 100 TEMPERATURE IN °C www.allegromicro.com R = 2.0°C/W θJT = 5.0°C/W 125 150 ...

BRUSHLESS DC MOTOR CONTROLLER/DRIVER (Resistive Load) (Resistive Load) ° ≤ ° ∆ ± ± ± 115 Northeast Cutoff, Box 15036 Worcester, Massachusetts 01615-0036 (508) 853-5000 ° ° µ µ µ µ µ µ µ µ µ Continued ...

Page 5

BRUSHLESS CONTROLLER/DRIVER ° ≤ ° ≥ ≥ ≥ 2936 -120 DC MOTOR µ µ µ µ µ µ µ µ µ ...

Page 6

BRUSHLESS DC MOTOR CONTROLLER/DRIVER The UDN2936W-120 power driver provides commutation logic and power outputs to drive three-phase brushless dc motors. The UDN2936W-120 is designed to interface with single- ended linear or digital Hall-effect devices (HEDs). Internal pull-up ...

Page 7

V DIRECTION OUT 0 A – + OUT 0 B – + OUT 0 C – SENSOR H2 CUT X 2N2222 OR 2N3904 www.allegromicro.com UDN2936W-120 +6 – +2.5 ...

Page 8

BRUSHLESS DC MOTOR CONTROLLER/DRIVER 0.020 INDEX AREA 1 0.065 0.035 1.260 1.240 0.775 0.245 0.765 0.225 0.140 0.365 12 0.030 0.020 0.100 ±0.010 NOTES: 1. Lead thickness is measured at seating plane or below. 2. Lead spacing ...

Page 9

... The products described here are manufactured under one or more U.S. patents or U.S. patents pending. Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improve- ments in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the informa- tion being relied upon is current ...

Page 10

BRUSHLESS DC MOTOR CONTROLLER/DRIVER * Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltage limits or over-current protection voltage limits. Negative current is defined as coming out of (sourcing) the output. ...

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UDQ2936-120 Allegro MicroSystems, UDQ2936-120 Datasheet

UDQ2936-120

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UDQ2936-120 Summary of contents

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