Overview
The SRK2000DTR, produced by STMicroelectronics, is a synchronous rectifier smart driver optimized for LLC (Inductor-Inductor-Capacitor) resonant converters. This device is designed to enhance the efficiency of power conversion systems by implementing secondary-side synchronous rectification. It is particularly suited for applications requiring high efficiency and reliability in power management.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage - Supply | 4.5 to 32 | V |
| Current - Supply | 35 mA | mA |
| Operating Temperature | -40°C to 150°C | °C |
| Mounting Type | Surface Mount | |
| Package | 8-SOIC (0.154", 3.90mm Width) | |
| Quiescent Consumption | 250 µA | µA |
| Operating Frequency | Up to 500 kHz | kHz |
| Gate Drive Current | 1 A source, 3.5 A sink | A |
Key Features
- Secondary-side synchronous rectifier controller optimized for LLC resonant converters.
- Protection against current reversal and safe management of load transient, light load, and startup conditions.
- Intelligent automatic sleep mode at light load to improve converter efficiency.
- Dual gate driver for N-channel MOSFETs with 1 A source and 3.5 A sink drive current.
- Programmable UVLO (Under-Voltage Lock-Out) with hysteresis.
- Low external component count required.
- Available in SO-8 package.
Applications
- All-in-one PC power supplies.
- High-power AC-DC adapters.
- 80+/85+ compliant ATX SMPS (Switch-Mode Power Supplies).
- 90+/92+ compliant server SMPS.
- Industrial SMPS.
Q & A
- What is the primary function of the SRK2000DTR?
The SRK2000DTR is a synchronous rectifier smart driver designed to optimize the efficiency of LLC resonant converters by managing secondary-side synchronous rectification.
- What is the operating voltage range of the SRK2000DTR?
The operating voltage range is from 4.5 V to 32 V.
- What type of package is the SRK2000DTR available in?
The SRK2000DTR is available in an 8-SOIC package.
- What is the maximum operating frequency of the SRK2000DTR?
The maximum operating frequency is up to 500 kHz.
- Does the SRK2000DTR have any power-saving features?
Yes, it features an intelligent automatic sleep mode at light load to reduce quiescent consumption and improve converter efficiency.
- What kind of protection does the SRK2000DTR offer?
The SRK2000DTR offers protection against current reversal and safe management of load transient, light load, and startup conditions.
- What is the gate drive current capability of the SRK2000DTR?
The SRK2000DTR has a dual gate driver with 1 A source and 3.5 A sink drive current for N-channel MOSFETs.
- What are some typical applications of the SRK2000DTR?
Typical applications include all-in-one PC power supplies, high-power AC-DC adapters, 80+/85+ compliant ATX SMPS, 90+/92+ compliant server SMPS, and industrial SMPS.
- How does the SRK2000DTR manage load conditions?
The SRK2000DTR safely manages load transient, light load, and startup conditions, and it also features an intelligent automatic sleep mode at light load.
- What is the quiescent consumption of the SRK2000DTR?
The quiescent consumption is 250 µA.
