Overview
The NCS1002DR2G is a highly integrated constant voltage/constant current secondary-side controller designed by onsemi. This component is ideal for Switching Mode Power Supply (SMPS) applications, particularly in scenarios requiring dual control loops for both constant voltage (CV) and constant current (CC) regulation. The NCS1002 integrates a 2.5 V voltage reference and two precision operational amplifiers, making it suitable for space-constrained applications such as battery chargers.
Key Specifications
| Parameter | Symbol | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Supply Voltage (VCC to GND) | VCC | 36 | V | ||
| Differential Input Voltage | Vid | 36 | V | ||
| Input Voltage | Vi | -0.3 | 36 | V | |
| ESD Protection Voltage at Pin Human Body Model | VESD | 2000 | V | ||
| Maximum Junction Temperature | TJ | 150 | °C | ||
| Specification Temperature Range | TA | -40 | 105 | °C | |
| Operating Free-Air Temperature Range | Toper | -55 | 125 | °C | |
| Storage Temperature Range | Tstg | -55 | 150 | °C | |
| Total Supply Current (excluding current in the Voltage Reference) | ICC | 0.3 | 0.4 | 0.75 | mA |
| Input Offset Voltage (Op Amp 1) | VIO | 2.0 | 3.0 | mV | |
| Input Offset Voltage (Op Amp 2) | VIO | 0.5 | 2.0 | mV | |
| Reference Voltage | Vref | 2.48 | 2.5 | 2.52 | V |
Key Features
- Low Input Offset Voltage: 0.5 mV (typical) for Op Amp 2 and 2.0 mV (typical) for Op Amp 1.
- Input Common-Mode Range includes Ground.
- Low Quiescent Current: 300 μA per Op Amp at VCC = 5 V.
- Large Output Voltage Swing.
- Wide Power Supply Range: 3 V to 32 V.
- High ESD Protection: 2 kV.
- Pb-Free Device.
Applications
- Battery Chargers.
- Switch Mode Power Supplies.
Q & A
- What is the primary function of the NCS1002DR2G?
The NCS1002DR2G is a constant voltage/constant current secondary-side controller for Switching Mode Power Supply (SMPS) applications.
- What package type is the NCS1002DR2G available in?
The NCS1002DR2G is available in an 8-pin SOIC package.
- What is the operating temperature range of the NCS1002DR2G?
The operating temperature range is from -40°C to 105°C.
- What is the maximum supply voltage for the NCS1002DR2G?
The maximum supply voltage is 36 V.
- Does the NCS1002DR2G have ESD protection?
Yes, it has a high ESD protection of 2 kV.
- What are the typical applications of the NCS1002DR2G?
Typical applications include battery chargers and switch mode power supplies.
- What is the reference voltage of the NCS1002DR2G?
The reference voltage is 2.5 V with a deviation of ±0.01 V over temperature.
- How many operational amplifiers are integrated into the NCS1002DR2G?
There are two precision operational amplifiers integrated into the device.
- What is the quiescent current of each operational amplifier?
The quiescent current is 300 μA per Op Amp at VCC = 5 V.
- Is the NCS1002DR2G a Pb-Free device?
Yes, the NCS1002DR2G is a Pb-Free device.
