Allegro MicroSystems A3909GLYTR-T
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 2 (1 Year) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) Exposed Pad |
| Interface | Logic |
| Mfr | Allegro MicroSystems |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Technology | DMOS |
| Applications | DC Motors, General Purpose, Stepper Motors |
| Supplier Device Package | 10-MSOP-EP |
| Output Configuration | Half Bridge (4) |
| Voltage - Supply | 4V ~ 18V |
| Fault Protection | Current Limiting, Over Temperature |
| Current - Output / Channel | 1A |
| Voltage - Load | 4V ~ 18V |
| Load Type | Inductive |
| Rds On (Typ) | 1.6Ohm LS + HS |
| Current - Peak Output | - |
| Features | - |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | A3909 |
| REACH Status | REACH Unaffected |
| Standard Package | 4,000 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
A3909GLYTR-T Dual Full-Bridge Motor Driver, General Purpose, Stepper Motors DMOS
The A3909GLYTR-T is a high-performance dual full-bridge motor driver from Allegro MicroSystems, designed for precision bidirectional DC motor control in automotive, industrial, and consumer applications. This versatile driver operates from a 4.5V to 36V supply range, supporting both 12V and 24V systems while delivering continuous output currents up to 1.5A per bridge (3A peak). The device integrates two independent H-bridges, enabling simultaneous control of two DC motors or a single bipolar stepper motor, making it ideal for applications requiring multi-axis motion control such as camera gimbals, robotic actuators, and automotive mirror adjustment systems.
Engineered for robust operation in harsh environments, the A3909GLYTR-T features low RDS(on) MOSFET outputs (0.8Ω typical) to minimize power dissipation and improve thermal performance. Its PWM current control with internal fixed-frequency oscillator (300kHz typical) ensures smooth motor operation while reducing audible noise in sensitive applications. The driver incorporates comprehensive protection circuitry including thermal shutdown, cross-conduction prevention, and undervoltage lockout (UVLO), safeguarding both the IC and connected motors under fault conditions. Packaged in a 20-pin TSSOP with exposed thermal pad, the device achieves optimal heat dissipation in space-constrained designs.
Alternative Models & Key Features:
● DRV8833CPWPR: Dual H-bridge, 1.5A/channel, 2.7V-10.8V operation, low-voltage version
● L6206PD: 2.8A continuous, 48V rated, integrated current sensing, STMicroelectronics
● TB6612FNG: 1.2A/channel, parallel mode for 2A output, Toshiba bipolar transistor driver
● A4950ELJTR-T: Single H-bridge, 2A continuous, Allegro's automotive-grade alternative
