NCP1399 Series
High Performance Current
Mode Resonant Controller
with Integrated High-
Voltage Drivers
The NCP1399 is a high performance current mode controller for half
bridge resonant converters. This controller implements 600 V gate
drivers, simplifying layout and reducing external component count. The
built−in Brown−Out input function eases implementation of the
controller in all applications. In applications where a PFC front stage is
needed, the NCP1399 features a dedicated output to drive the PFC
controller. This feature together with dedicated skip mode technique
further improves light load efficiency of the whole application. The
NCP1399 provides a suite of protection features allowing safe operation
in any application. This includes: overload protection, over−current
protection to prevent hard switching cycles, brown−out detection, open
optocoupler detection, automatic dead−time adjust, overvoltage (OVP)
and overtemperature (OTP) protections.
Features
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16
1
SOIC−16 NB
(LESS PINS 2 AND 13)
D SUFFIX
CASE 751DU
MARKING DIAGRAM
16
NCP1399xy
AWLYWWG
1
NCP1399 = Specific Device Code
x
= A or B
y
= A, B, C, F, G H, I, J, K, L, M, N, P, R
A
= Assembly Location
WL
= Wafer Lot
Y
= Year
WW
= Work Week
G
= Pb−Free Package
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
High−Frequency Operation from 20 kHz up to 750 kHz
Current Mode Control Scheme
Automatic Dead−time with Maximum Dead−time Clamp
Dedicated Startup Sequence for Fast Resonant Tank Stabilization
Skip Mode Operation for Improved Light Load Efficiency
Off−mode Operation for Extremely Low No−load Consumption
Latched or Auto−Recovery Overload Protection
Latched or Auto−Recovery Output Short Circuit Protection
Latched Input for Severe Fault Conditions, e.g. OVP or OTP
Out of Resonance Switching Protection
Open Feedback Loop Protection
Precise Brown−Out Protection
PFC Stage Operation Control According to Load Conditions
Startup Current Source with Extremely Low Leakage Current
Dynamic Self−Supply (DSS) Operation in Off−mode or Fault Modes
Pin to Adjacent Pin / Open Pin Fail Safe
These are Pb−Free Devices
PIN CONNECTIONS
HV 1
16 VBOOT
15 HB
VBULK/PFCFB 3
SKIP/REM 4
LLCFB 5
LLCCS 6
OVP/OTP 7
PON/OFF 8
(Top View)
12 MLOWER
11 GND
10 VCC
9 PFCMODE
14 MUPPER
Typical Applications
Adapters and Offline Battery Chargers
Flat Panel Display Power Converters
Computing Power Supplies
Industrial and Medical Power Sources
ORDERING INFORMATION
See detailed ordering and shipping information on page 11 of
this data sheet.
©
Semiconductor Components Industries, LLC, 2016
1
July, 2018 − Rev. 14
Publication Order Number:
NCP1399/D
NCP1399 Series
Figure 1. Typical Application Example without PFC Stage − WLLC Design (Active OFF off−mode)
Figure 2. Typical Application Example with PFC Stage (Active OFF off−mode)
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2
NCP1399 Series
Figure 3. Typical Application Example with PFC Stage (Active ON off−mode)
PIN FUNCTION DESCRIPTION
Pin No.
1
2
3
4
Pin Name
HV
NC
VBULK /
PFC FB
SKIP/REM
Function
High*voltage startup
current source input
Not connected
Bulk voltage monitoring input
Skip threshold adjust /
Off−mode control input
Pin Description
Connects to rectified AC line or to bulk capacitor to perform functions of
Start*up Current Source and Dynamic Self*Supply
Increases the creepage distance
Receives divided bulk voltage to perform Brown−out protection.
Sets the skip in threshold via a resistor connected to ground – version
NCP1399Ay. Activates off−mode (or Standby) when pulled−up by external
auxiliary voltage source / deactivates off−mode when pull down by external
off−mode control optocoupler – version NCP1399By.
Defines operating frequency based on given load conditions. Activates skip
mode operation under light load conditions. Activates off−mode operation for
NCP1399Ay version.
Senses divided resonant capacitor voltage to perform on−time modulation, out
of resonant switching protection, over−current protection and secondary side
short circuit protection.
Implements over−temperature and over−voltage protection on single pin.
Adjusts the FB pin to a level below which the PFC stage operation is disabled.
Provides supply voltage for PFC front stage controller and/or enables Vbulk
sensing network HV switch.
The controller accepts up to 20 V on VCC pin
Common ground connection for adjust components, sensing networks and
DRV outputs.
Drives the lower side MOSFET
Increases the creepage distance
Drives the higher side MOSFET
Connects to the half*bridge output.
The floating VCC supply for the upper stage
5
LLC FB
LLC feedback input
6
LLC CS
LLC current sense input
7
8
9
10
11
12
13
14
15
16
OTP / OVP
P ON/OFF
PFC MODE
VCC
GND
MLOWER
NC
MUPPER
HB
VBOOT
Over−temperature and
over−voltage protection input
PFC turn−off FB level adjust
PFC and external HV
switch control output
Supplies the controller
Analog ground
Low side driver output
Not connected
High side driver output
Half*bridge connection
Bootstrap pin
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NCP1399 Series
Figure 4. Internal Circuit Architecture
MAXIMUM RATINGS
Rating
HV Startup Current Source HV Pin Voltage (Pin 1)
VBULK/PFC FB Pin Voltage (Pin3)
SKIP/REM Pin Voltage (Pin 4) NCP1399Ay Revision Only
SKIP/REM Pin Voltage (Pin 4) NCP1399By Revision Only
LLC FB Pin Voltage (Pin 5)
LLC CS Pin Voltage (Pin 6)
PFC MODE Pin Output Voltage (Pin 9)
VCC Pin Voltage (Pin 10)
Low Side Driver Output Voltage
(Pin 12)
High Side Driver Output Voltage
(Pin 14)
High Side Offset Voltage
(Pin 15)
High Side Floating Supply Voltage
(Pin 16)
High Side Floating Supply Voltage
(Pin 15 and 16)
Allowable Output Slew Rate on HB Pin
(Pin 15)
OVP/OTP Pin Voltage (Pin 7)
P ON/OFF Pin Voltage (Pin 8)
Junction Temperature
Storage Temperature
Thermal Resistance Junction−to−air
Human Body Model ESD Capability per JEDEC JESD22−A114F (except HV Pin – Pin 1)
Charged−Device Model ESD Capability per JEDEC JESD22−C101E
T
J
= −40°C to +125°C
T
J
= −55°C to −40°C
Symbol
V
HV
V
BULK/PFC FB
V
SKIP/REM
V
SKIP/REM
V
FB
V
CS
V
PFC MODE
V
CC
V
DRV_MLOWER
V
DRV_MUPPER
V
HB
V
BOOT
V
Boot–VHB
dV/dt
max
V
OVP/OTP
V
P ON/OFF
T
J
T
STG
R
θJA
−
−
Value
−0.3 to 600
−0.3 to 5.5
−0.3 to 5.5
−0.3 to 10
−0.3 to 5.5
−5 to 5
−0.3 to V
CC
+ 0.3
−0.3 to 20
−0.3 to V
CC
+ 0.3
V
HB
– 0.3 to
V
BOOT
+ 0.3
V
Boot
−20 to
V
Boot
+0.3
−0.3 to 620
−0.3 to 618
−0.3 to 20.0
50
−0.3 to 5.5
−0.3 to 5.5
−55 to 150
−55 to 150
130
4.5
1
Unit
V
V
V
V
V
V
V
V
V
V
V
V
V
V/ns
V
V
°C
°C
°C/W
kV
kV
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. This device contains latch−up protection and exceeds 100 mA per JEDEC Standard JESD78.
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NCP1399 Series
ELECTRICAL CHARACTERISTICS
(For typical values T
J
= 25°C, for min/max values T
J
= −40°C to +125°C, V
CC
= 12 V unless otherwise noted.)
Symbol
HV Startup Current Source
V
HV_MIN1
V
HV_MIN2
I
START1
I
START2
I
START_OFF
I
HV_OFF−MODE
Supply Section
V
CC_ON
V
CC_ON
V
CC_OFF
V
CC_RESET
V
CC_INHIBIT
V
CC_ON_BLANK
I
CC_OFF−MODE
I
CC_SKIP−MODE
Turn−on threshold level, V
CC
going up
Turn−on threshold level, V
CC
going up
(NCP1399AL, NCP1399AM, NCP1399AR)
Minimum operating voltage after turn−on
V
CC
level at which the internal logic gets reset
V
CC
level for I
START1
to I
START2
transition
Delay to generate DRVs pulses after V
CC_ON
is reached
Controller supply current in off−mode,
V
CC
= V
CC_ON
− 0.2 V (except NCP1399AG)
Controller supply current in skip−mode, V
CC
= 15 V
(NCP1399AA, BA, AC, AH, AI, AK, AM, AN, AP, AR)
(NCP1399AF, NCP1399AG, NCP1399AJ)
(NCP1399AL)
Controller supply current in latch−off mode,
V
CC
= V
CC_ON
− 0.2 V (except NCP1399AI, AN, AP)
Controller supply current in auto−recovery mode,
V
CC
= V
CC_ON
− 0.2 V (except NCP1399AF)
Controller supply current in normal operation,
f
sw
= 100 kHz, C
load
= 1 nF, V
CC
= 15 V
Startup voltage on the floating section (Note 5)
Cutoff voltage on the floating section
Upper driver consumption, no DRV pulses
Upper driver consumption, C
load
= 1 nF between Pins 13 &
15 f
sw
= 100 kHz, HB connected to GND
HB sink current capability V
HB
= 30 V
HB sink current capability V
HB
= V
HB_MIN
HB voltage @ I
DISCHARGE
changes from 2 to 0 mA
Remote pin voltage below which off−mode is deactivated
(V
REM
going down)
Remote pin voltage above which off−mode is activated
(V
REM
going up)
10
10
10
10
10
10
10, 11
10, 11
580
500
500
10, 11
10, 11
10, 11
330
300
4.0
750
670
710
490
490
5.4
900
820
890
600
600
7.0
mA
mA
mA
15.3
11.5
9.0
5.8
0.40
100
10
15.8
12.0
9.5
6.6
0.80
125
27
16.3
12.3
10
7.2
1.25
150
40
V
V
V
V
V
ms
mA
mA
Minimum voltage for current source operation
(V
CC
= V
CC_ON
−0.5 V, I
START2
drops to 95 %)
Minimum voltage for current source operation
(V
CC
= V
CC_ON
−0.5 V, I
START2
drops to 5 mA)
Current flowing out of V
CC
pin (V
CC
= 0 V)
Current flowing out of V
CC
pin (V
CC
= V
CC_ON
−0.5 V)
Off−state leakage current (V
HV
= 500 V, V
CC
= 15 V)
HV pin current when off−mode operation is active
(V
HV
= 400 V)
1
1
1, 10
1, 10
1
1
−
−
0.2
6
−
−
−
−
0.5
9
−
−
60
60
0.8
13
10
8
V
V
mA
mA
mA
mA
Rating
Pin
Min
Typ
Max
Unit
I
CC_LATCH
I
CC_AUTOREC
I
CC_OPERATION
Bootstrap Section
V
BOOT_ON
V
BOOT_OFF
I
BOOT1
I
BOOT2
HB Discharger
I
DISCHARGE1
I
DISCHARGE2
V
HB_MIN
V
REM_ON
V
REM_OFF
16, 15
16, 15
16, 15
16, 15
8
7.2
30
1.30
9
8.2
75
1.65
10
9.0
130
2.00
V
V
mA
mA
15
15
15
5
1
−
−
−
−
−
−
10
mA
mA
V
Remote Input – NCP1399By
4
4
1.0
7.2
1.5
8.0
2.0
8.8
V
V
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
2. The NCP1399Ay version has skip adjustable externally.
3. Guaranteed by design.
4. Minimal impedance on P ON/OFF pin is 1 kW
5. Minimal resistance connected in series with bootstrap diode is 3.3
W
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