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PDF 2936-120 Data sheet ( Hoja de datos )
| Número de pieza | 2936-120 | |
| Descripción | 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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2936-120
ABSOLUTE MAXIMUM RATINGS
at TJ ≤ +150°C
Supply Voltage, VBB . . . . . . . . . . . . . . . 45 V
Output Current, IOUT
(continuous) . . . . . . . . . . . . . . . . ±2.0 A
(peak) . . . . . . . . . . . . . . . . . . . . . ±3.0 A
Input Voltage Range, VIN . . . -0.3 V to 15 V
Threshold Voltage, VTHS . . . . . . . . . . . . 15 V
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range,
TA . . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
TS . . . . . . . . . . . . . . . . -55°C to +150°C
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.
3-PHASE BRUSHLESS DC MOTOR
CONTROLLER/DRIVER
Combining logic and power, the UDN2936W-120 provides com-
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.
The UDN2936W-120 is compatible with single-ended digital or
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 H2 input. Current control is accomplished by sensing
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.
The UDN2936W-120 is also available for operation between -40°C
and +85°C. To order, change the prefix from ‘UDN’ to ‘UDQ’.
For maximum power-handling capability, the UDN2936W-120 is
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.
FEATURES
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 .
1 page  
2936-120
3-PHASE BRUSHLESS
DC MOTOR
CONTROLLER/DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, TJ ≤ +150°C, VBB = 45 V continued
Characteristic
Symbol
Test Conditions
Limits
Min. Typ. Max.
Control Logic
Logic lnput Voltage
Sensor lnput Voltage Threshold
Input Current
Current Limit Threshold
Default Sense Trip Voltage
Default Hysteresis
Deadtime
VIN(1)
VIN(0)
VIN
IIN(1)
IIN(0)
ITHS
—
VSENSE
—
td
VDIR or VBRAKE
VDIR or VBRAKE
H1, H2, or H3
VDIR = 2 V
VBRAKE = 2 V
VH = 5 V
VDIR = 0.8 V
VBRAKE = 0.8 V
VH = 0.8 V
VTHS ≥ 3.0 V
VTHS < 3.0 V, VSENSE < VTHS/10.5
VTHS < 3.0 V, VSENSE > VTHS/ 9.5
VTHS/ VSENSE at trip point, VTHS < 3.0 V
VTHS ≥ 3.0 V
VTHS ≥ 3.0 V
BRAKE or DIRECTION
2.0 — —
— — 0.8
— 2.5 —
— 150 200
— <1.0 5.0
— -190 -220
— 35 50
— -5.0 -20
— -0.64 -1.0
— -8.0 -15
— -15 -30
190 250 310
9.5 10 10.5
270 300 330
— 7.5 —
— 2.0 —
Units
V
V
V
µA
µA
µA
µA
µA
mA
µA
µA
µA
—
mV
%
µs
www.allegromicro.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet 2936-120.PDF ] | |
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