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PDF A3910 Data sheet ( Hoja de datos )
| Número de pieza | A3910 | |
| Descripción | Dual Half Bridge Motor Driver | |
| Fabricantes | Allegro MicroSystems | |
| Logotipo |  |
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A3910
Dual Half Bridge Motor Driver
Features and Benefits
• Low RDS(on) outputs
• Standby mode with zero current drain
• Small 2 × 2 DFN package
• Crossover Current protection
• Thermal Shutdown protection
Package: 8-contact DFN with Exposed
Thermal Pad (suffix EE)
Description
The A3910 is a dual half bridge motor driver, designed for
low cost, low voltage battery operated power applications.
The outputs are rated for operation up to 500 mA.
Direct control of high- and low-side drivers is implemented
to allow either high-side or low-side PWM. The motor can
be connected to either supply or GND. Using a MOS switch
results in improved braking action for the motor, compared to
implementation with simple clamp diode.
The A3910 is supplied in a 2 mm × 2 mm 8-contact DFN
package (EE) with exposed thermal pad. The package is lead
(Pb) free, with 100% matte tin leadframe plating.
Not to scale
Typical Application Diagram
System
Controller
A3910
VSUPPLY
System
Controller
M
A3910
VSUPPLY
M
(A) Connection to Supply
M
M
(B) Connection to Ground
A3910-DS
1 page  
A3910
Dual Half Bridge Motor Driver
Characteristic Performance
Output On-Resistance versus Load Supply Voltage
1.8
1.6
1.4
1.2
Source = 500 mA
1.0
Source = 100 mA
0.8 Sink = 500 mA
Sink = 100 mA
0.6
0.4
0.2
2.0
2.5
3.0 3.5
4.0 4.5
VBB (V)
5.0 5.5
Output On-Resistance versus Output Current
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
100 200 300 400 500
IOUT (mA)
Source = 3 V
Source = 5 V
Sink =3 V
Sink = 5 V
Allegro MicroSystems, LLC
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
5
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet A3910.PDF ] | |
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