NCP1398B/C
High Performance Resonant
Mode Controller with
Integrated High-Voltage
Drivers
http://onsemi.com
The NCP1398 is a high performance controller for half bridge LLC
resonant converters. The integrated high voltage gate driver simplifies
layout and reduces external component count. A unique architecture,
which includes a 750 kHz Voltage Controlled Oscillator whose control
mode permits flexibility when an ORing function is required allows
the NCP1398 to deliver everything needed to build a reliable and
rugged resonant mode power supply. The NCP1398 provides a suite of
protection features with configurable settings allow optimization in
any application. This includes: auto−recovery and latch−off
over−current protection, brown−out detection, open optocoupler
detection, adjustable soft−start and dead−time.
SOIC−16 NB, Less Pin 13
D SUFFIX
CASE 751AM
MARKING DIAGRAM
16
NCP1398xG
AWLYWW
Features
• High−Frequency Operation from 50 kHz up to 750 kHz
• Adjustable Minimum Switching Frequency with 3% Accuracy
• Adjustable Dead−Time
• Startup Sequence Via an Externally Adjustable Soft−Start
• Precise and High Impedance Brown−Out Protection
• Latched Input for Severe Fault Conditions, e.g. Over Temperature or
OVP
1
x
A
WL
Y
= B or C
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
WW
G
• Timer−Based Auto−Recovery Overcurrent Protection
• Latched Output Short−Circuit Protection
PIN CONNECTIONS
• Open Feedback Loop Protection for NCP1398B Version
BO
1
Vboot
HB
16
15
• Disable Input for ON/OFF Control
• Skip Mode with Adjustable Hysteresis
Ctimer
Discharge
Fmax
2
3
4
5
6
Mupper
14
• V Operation up to 20 V
CC
• 1 A / 0.5 A Peak Current Sink / Source Drive Capability
• Common Collector Optocoupler Connection for Easier ORing
Rt
V
CC
12
11
10
9
DT
GND
• Internal Temperature Shutdown
• Designed with Pin−to−Adjacent−Pin Short Testing Safety
Considerations
• Designed with Open Pin Testing Safety Considerations
• These Devices are Pb−Free and Halogen Free/BFR Free
FB
Mlower
OLP
7
8
Skip/Disable
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information on page 23 of
this data sheet.
Typical Applications
• Flat panel Display Power Converters
• High Power AC/DC Adapters
• Computing Power Supplies
• Industrial and Medical Power Sources
• Offline Battery Chargers
©
Semiconductor Components Industries, LLC, 2013
1
Publication Order Number:
January, 2013 − Rev. 0
NCP1398/D