NCS5651 Datasheet Text
NCS5651
2 Amp PLC Line Driver
Description The NCS5651 is a high efficiency, Class A/B, low distortion power line driver. It is optimized to accept a signal from a Power Line Carrier modem. The device consists of two Operational Amplifiers (opamps).
The output opamp is designed to drive up to 2 A peak into an isolation transformer or simple coil coupling to the mains. At an output current of 1.5 A, the output voltage is guaranteed to swing within 1 V or less of either rail giving the user improved SNR.
In addition to the output amplifier, a small- signal opamp is provided which can be configured as a unity gain follower buffer or can provide the first stage of a 4- pole low pass filter.
The NCS5651 offers a current limit, programmable with a single resistor, RLIM, together with a current limit flag. The device provides two independent thermal flags with hysteresis: a thermal warning flag to let the user know the internal junction temperature has reached a user programmable thermal warning threshold and a thermal error flag that indicates the internal junction temperature has exceeded 150°C.
The NCS5651 has a power supply voltage range of 6- 12 V. It can be shut down, leaving the outputs highly- impedant. The NCS5651 es in a 20- lead QFN package (4 × 4 × 1 mm3) with an exposed thermal pad for enhanced thermal reliability.
Features
- Rail- to- Rail: Drop of Only ±1 V with IOUT = 1.5 A
- VBB Supply Voltage: 6- 12 V
- Flexible 4th- Order Filtering
- Current- Limit Set with One Resistor
- Diagnostic Flags Level Shifted to VCC to Simplify Interface with
External MCU
- Thermal Warning Flag with Flexible Threshold Setting
- Thermal Error flag and Shutdown
- Overcurrent Flag
- Enable/Shutdown Control
- Extended Junction Temperature Range:
- 40°C to +125°C
- Small Package: 20- pin 4 ×...