NCS5650 Datasheet, PDF (1/9 Pages) ON Semiconductor – 2 Amp PLC Line Driver

NCS5650
2 Amp PLC Line Driver
The NCS5650 is a high efficiency, Class A/B, low distortion power
line driver. Its design is optimized to accept a signal from a Power Line
Carrier modem. The output stage is designed to drive up to 2 A peak
into an isolation transformer or simple coil coupling to the mains. At
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. Power
supply options are single−sided 6 V to 12 V and dual balanced
$3.0 V to $6.0 V. The input stage contains an operational amplifier
which can be configured as a unity gain follower buffer or used to
provide the first stage of a 4−pole low pass filter. In addition the
NCS5650 offers a current limit programmable with a single resistor,
R−_Limit, 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. In shutdown mode the NCS5650
output goes into a high−impedance state. The NCS5650 comes in a 20
lead QFN package (4x4x1mm) 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_CC: Single−Sided (6 V to 12 V) or Dual−Balanced $6.0 V
• Flexible 4th−Order Filtering
• Current−Limit Set with One Resistor
• Diagnostic Flags Level Shifted to V_mc 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 4x4x1mm QFN 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
http://onsemi.com
1 20
QFN20
CASE 485E
MARKING
DIAGRAM
20
1
NCS
5650
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
NCS5650MNTXG 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, 2010
1
May, 2010 − Rev. 0
Publication Order Number:
NCS5650/D