NCS5651 Datasheet, PDF (1/11 Pages) ON Semiconductor – 2 Amp PLC Line Driver

NCS5651
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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, R_LIM, 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
comes 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 I_OUT = 1.5 A
• V_BB Supply Voltage: 6−12 V
• Flexible 4^th−Order Filtering
• Current−Limit Set with One Resistor
• Diagnostic Flags Level Shifted to V_CC 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 × 4 × 1 mm³ NQFP with Exposed Thermal
Pad
• Optimized for Operation in the CENELEC A to D Frequency Band
• This is a Pb−Free Device
Typical Applications
• Power Line Communication Driver in AMM and AMR Metering
Systems
• Valve, Actuator, and Motor Driver
• Audio
This document contains information on a product under development. ON Semiconductor
reserves the right to change or discontinue this product without notice.
www.onsemi.com
1 20
QFN20
CASE 485E
MARKING
DIAGRAM
20
1
NCS
5651
ALYWG
G
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb−Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping^†
NCS5651MNTXG QFN20 3000 / Tape & Reel
(Pb−Free)
†For information on tape and reel specifications,
including part or orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
© Semiconductor Components Industries, LLC, 2015
1
January, 2015 − Rev. P2
Publication Order Number:
NCS5651/D