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TM4953FS-VB Product details
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TM4953FS-VB is a Dual P+P MOSFET deeply optimized for low-voltage power switching scenarios. The Trench technology balances low switching losses and high reliability. The SOP8 package achieves a good balance between thermal dissipation capability and board space. The combination of -30V withstand voltage, -7.3A current capability, and 35mΩ on-resistance (@10V) makes it an ideal cost-reduction upgrade option to replace traditional DPAK or SOP-8 packaged devices, especially suitable for high-density, high-volume applications.
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Product parameter：
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds2.5 | Rds4.5 | Rds10 | Technology |
|---|---|---|---|---|---|---|---|---|---|
| SOP8 | Dual-P+P | -30V | -1.7V | -7.3A | 45(mΩ) | 35(mΩ) | Trench |
| VB Package | Configuration | VCE | VGE | VGEth(V) | VCEsat15V | ICE | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Dual-P+P | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds18 | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Dual-P+P | -30V | -1.7V | -7.3A | Trench |
| VB Package | Configuration | VDS(V) | VGS | Vthyp（V） | ID(A) | Rds6 | Technology |
|---|---|---|---|---|---|---|---|
| SOP8 | Dual-P+P | -30V | -1.7V | -7.3A | Trench |
| VB Package | Polarity | Vz / VR | Pd | VF | IF | IR | Cd | Type |
|---|---|---|---|---|---|---|---|---|
| SOP8 | Dual-P+P | MOS |
VDS=-30V: Suitable for 5V/12V/24V systems, providing margin for negative voltage spikes, reducing avalanche breakdown risk.
VGS=±20V: Compatible with a wide range of logic levels, can be directly connected to MCU/PMIC, simplifying drive circuit design.
Vth=-1.7V (typical): Can still enter the fully conductive region under low-voltage drive, especially suitable for battery voltage decay scenarios.
RDS(on)=35mΩ @ VGS=10V: Low on-resistance, significantly reducing full-load temperature rise, allowing for reduced heat sink copper area.
RDS(on)=45mΩ @ VGS=4.5V: Maintains low conduction loss under low-voltage drive, suitable for 3.3V/5V logic control.
ID=-7.3A: Ample continuous current margin, can handle peak demand of most portable and automotive auxiliary loads.
Package SOP8: Dual-chip integration, low parasitic parameters, supports high-frequency switching, while saving PCB area and assembly costs.
Domain and module applications：
Portable Device Power Management: Low on-resistance improves boost/buck efficiency, extends battery life; SOP8 package facilitates compact design.
Battery Protection Module: Fast response ensures microsecond-level shutdown during overcurrent/short circuit; low on-resistance reduces self-heating of the protection board.
Low-Voltage Motor Drive: Low PWM switching losses, smoother motor operation, significantly reduced controller temperature rise.
Consumer Electronics Control Module: Dual P-channel configuration is suitable for high-side switches, load switching, etc., simplifying peripheral circuits.
LED Lighting Drive: Low conduction voltage drop reduces constant current source power consumption; supports multiple parallel channels, improving overall luminous efficacy.
DC-DC Converter: Replaces Schottky diodes in synchronous rectification; heavy-load efficiency can be improved by 2~3%, facilitating module miniaturization.
Automotive Auxiliary Power: Voltage margin and wide temperature operating range are compatible with 12V automotive bus, offering high reliability.
Selection Summary: TM4953FS-VB achieves a balance between performance margin, package size, and system cost. It is a cost-effective general-purpose choice for 30V low-voltage dual P-channel switching applications, especially suitable for projects with strict requirements on space and thermal dissipation.
* Please note: the above is only an example application scenario, the specific application depends on the requirements and conditions of the system design. When using this device, consult its data sheet for detailed technical specifications and features
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