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DRV8838DSGR
WSON-8 (2x2mm)
The DRV8838DSGR from TI is an H-bridge DC motor driver supporting 1.8-11V and 1A output in an ultra-small 2x2mm WSON-8 for brushed DC motor control.
| Package | WSON-8 (2x2mm) |
The DRV8838DSGR from TI is an H-bridge DC motor driver supporting 1.8-11V and 1A output in an ultra-small 2x2mm WSON-8 for brushed DC motor control.
The DRV8838DSGR is an H-bridge motor driver from Texas Instruments in WSON-8 (2x2mm), rated for 1.8A peak and 1A continuous output current with 1.8-11V motor supply. The H-bridge consists of four N-channel MOSFETs (two high-side, two low-side) in an H configuration. The IN1/IN2 inputs control the bridge state: IN1=1/IN2=0 = forward, IN1=0/IN2=1 = reverse, IN1=1/IN2=1 = brake (both low-side on), IN1=0/IN2=0 = coast (all off, high impedance). The MOSFETs have 360mOhm RDS(on) (high-side + low-side total), producing 0.36V drop at 1A. The device integrates: (1) Internal charge pump for high-side N-ch gate drive (no external bootstrap needed); (2) Overcurrent protection at 2.5A (trip threshold); (3) Thermal shutdown at 160C; (4) Under-voltage lockout at 1.6V. PWM speed control is achieved by pulsing IN1 or IN2 at 20kHz+ (above audible range). The nSLEEP pin puts the device in ultra-low-power mode (50nA) for battery-powered applications. The WSON-8 package has an exposed thermal pad for heat dissipation. The -DSGR suffix specifies WSON-8, tape-and-reel. Applications include: coin vibration motors, small DC motors in toys, and lens focus motors in cameras.
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | nSLEEP | Input | Sleep mode (HIGH=active, LOW=sleep, 50nA Iq) |
| 2 | IN1 | Input | Input 1 (controls H-bridge state, see truth table) |
| 3 | IN2 | Input | Input 2 (controls H-bridge direction and brake) |
| 4 | OUT1 | Output | H-bridge output 1 (connects to motor terminal A) |
| 5 | GND | Power | Ground (connect to PCB ground plane) |
| 6 | OUT2 | Output | H-bridge output 2 (connects to motor terminal B) |
| 7 | VCC | Power | Logic supply (1.8-7V, 0.1uF bypass cap) |
| 8 | VM | Power | Motor supply (1.8-11V, connect with 10uF ceramic) |
| Manufacturer | Part Number | Package | Notes |
|---|---|---|---|
| Texas Instruments | DRV8838DSGR | WSON-8 | Same device, TI brand |
| Texas Instruments | DRV8837DSGR | WSON-8 | 1A version, lower current |
| Pololu | DRV8833 | HTSSOP-16 | 2A dual H-bridge, Pololu carrier board |
| onsemi | LV8548MC-AH | SOIC-8 | 1A H-bridge motor driver, onsemi |
| Toshiba | TC118S | MSOP-8 | 0.5A H-bridge, Toshiba brand |
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
Brand:
Package:
Cargo cycle: 3~7 Days
The minimum order is 1
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