Parameters |
Moisture Sensitivity Level (MSL) |
2 (1 Year) |
Number of Terminations |
24 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Applications |
General Purpose |
Technology |
Power MOSFET |
Voltage - Supply |
3V~5.5V |
Terminal Position |
QUAD |
Terminal Form |
NO LEAD |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.5mm |
Time@Peak Reflow Temperature-Max (s) |
40 |
Base Part Number |
A4957 |
Function |
Controller - Commutation, Direction Management |
Number of Outputs |
1 |
Supply Voltage-Max (Vsup) |
5.5V |
Supply Voltage-Min (Vsup) |
3V |
Interface |
Parallel |
Analog IC - Other Type |
BRUSH DC MOTOR CONTROLLER |
Output Configuration |
Pre-Driver - Half Bridge (2) |
Propagation Delay |
150 ns |
Turn On Delay Time |
35 ns |
Turn-Off Delay Time |
20 ns |
Voltage - Load |
4.5V~50V |
Number of Drivers |
4 |
Motor Type - AC, DC |
Brushed DC |
Height Seated (Max) |
0.8mm |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
Factory Lead Time |
1 Week |
Mount |
Surface Mount |
Mounting Type |
Surface Mount |
Package / Case |
24-WFQFN Exposed Pad |
Number of Pins |
24 |
Operating Temperature |
-20°C~85°C TA |
Packaging |
Tape & Reel (TR) |
Published |
2013 |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Active |
A4957SESTR-T Overview
Drivers controllers includes a Tape & Reel (TR)package.Drivers controllers is packaged wDrivers controllersh a 24-WFQFN Exposed Pad case.To mount the part by [0], it is recommended that you do so.Drivers controllers is fDrivers controllersting for the component connected in General Purpose.In this case, the device can supply 3V~5.5V volts.Drivers controllers operates wDrivers controllershin a range of -20°C~85°C TAdegrees Celsius.There is a motor type Brushed DCavailable.This part offers 24terminations.In this case, the voltage can be applied to the load at the rate of 4.5V~50V.Ideally, it should be mounted in the Surface Mountposition.The device utilizes the IC BRUSH DC MOTOR CONTROLLERwhich is an analog IC.The part number A4957indicates that it is found.24 pins are provided for its design.1outputs are available.Drivers for the device are provided by [0].
A4957SESTR-T Features
Applications : General Purpose
Load voltage across the chip 4.5V~50V
base on A4957 number
designed with 1 outputs
with 4 Drivers
A4957SESTR-T Applications
There are a lot of Allegro MicroSystems A4957SESTR-T motor drivers applications.
- Large outdoor LED display
- Tunnel lights
- Footwell lighting
- Scanning equipment
- Brake lights
- Fog lamps
- Automotive applications
- RGB and monochromatic LED drivers for signage and traffic signals
- Matrix LED dimmers
- Indicator circuit