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NCP1395A 데이터시트 PDF




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기능 High Performance Resonant Mode Controller
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NCP1395A 데이터시트, 핀배열, 회로
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NCP1395A/B
High Performance Resonant
Mode Controller
The NCP1395A/B offers everything needed to build a reliable and
rugged resonant mode power supply. Its unique architecture includes
a 1.0 MHz Voltage Controller Oscillator whose control mode brings
flexibility when an ORing function is a necessity, e.g. in multiple
feedback paths implementations. Protections featuring various
reaction times, e.g. immediate shutdown or timer−based event,
brown−out, broken optocoupler detection etc., contribute to a safer
converter design, without engendering additional circuitry
complexity. An adjustable deadtime also helps lowering the
shoot−through current contribution as the switching frequency
increases.
Finally, an onboard operational transconductance amplifier allows
for various configurations, including constant output current working
mode or traditional voltage regulation.
Features
High Frequency Operation from 50 kHz up to 1.0 MHz
Selectable Minimum Switching Frequency with "3% Accuracy
Adjustable Deadtime from 150 ns to 1.0 ms
Startup Sequence via an Adjustable Soft−Start
Brown−Out Protection for a Simpler PFC Association
Latched Input for Severe Fault Conditions, e.g. Overtemperature
or OVP
Timer−Based Input with Auto−Recovery Operation for Delayed
Event Reaction
Enable Input for Immediate Event Reaction or Simple ON/OFF
Control
Operational Transconductance Amplifier (OTA) for Multiple
Feedback Loops
VCC Operation up to 20 V
Low Startup Current of 300 mA Max
Common Collector Optocoupler Connection
Internal Temperature Shutdown
B Version Features 10 V VCC Startup Threshold for Auxiliary
Supply Usage
Easy No−Load Operation and Low Standby Power Due to
Programmable Skip−Cycle
These are Pb−Free Devices*
Typical Applications
LCD/Plasma TV Converters
High Power Ac−DC Adapters for Notebooks
Industrial and Medical Power Sources
Offline Battery Chargers
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MARKING
DIAGRAMS
16
1
PDIP−16
P SUFFIX
CASE 648
16
NCP1395xP
AWLYYWWG
1
16
1
SO−16
D SUFFIX
CASE 751B
1395xDR2G
AWLYWW
x
A
WL
YY, Y
WW
G
= A or B
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
PIN CONNECTIONS
Fmin 1
Fmax 2
DT 3
Css 4
FB 5
Ctimer 6
BO 7
AGnd 8
16 NINV
15 Out
14 Slow Fault
13 Fast Fault
12 Vcc
11 B
10 A
9 PGnd
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 25 of this data sheet.
*For additional information on our Pb−Free strategy
and soldering details, please download the ON
Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
March, 2006 − Rev. 1
1
Publication Order Number:
NCP1395/D




NCP1395A pdf, 반도체, 판매, 대치품
NCP1395A/B
Vdd
Fmin
Imin
Vfb = < Vfb_off
Vref +
C IDT
+
DT Adj.
I = Imax for Vfb = 5 V
I = 0 for Vfb < Vfb_off
Vdd
Fmax
Imax
Vfb = 5
Vdd
Vref
Itimer
If FAULT Itimer else 0
SS
S
D
Q
Clk Q
R
50% DC
Temperature
Shutdown
Vref
FF
BO
Reset
PON
Reset
Fault
Timeout
Fault
SS Reset on
A Version Only
Timer
+
Vref
+
Vdd
ISS
SS
Timeout
Fault
PON
Reset
Fault
20 V
UVLO
Fault
FB
RFB
+
+
Vfb_fault
IDT
DT
BO
AGND
Vdd
IBO
+
+
VBO
+
G=1
> 0 only if
V(FB) > Vfb_off
Vdd
+
Vfb_off
Vref
Deadtime
Adjustment
+
+
Vlatch
20 ms Noise
Filter
PON Reset
Figure 2. Internal Circuit Architecture
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4
Vref_FB
+
NINV
− + gm
OUT
+ Slow
Fault
+
Vref Fault
+
Fast
Fault
+
Vref Fault
VCC
B
A
PGND

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NCP1395A 전자부품, 판매, 대치품
NCP1395A/B
ELECTRICAL CHARACTERISTICS (continued) (For typical values Tj = 25°C, for min/max values Tj = 0°C to +125°C,
Max TJ = 150°C, VCC = 11 V, unless otherwise noted.)
Characteristic
Pin Symbol Min Typ
Max
Unit
TIMERS
Timer Charge Current
6 Itimer − 150 − mA
Timer Duration with a 1.0 mF Capacitor and a 1.0 MW Resistor
6 T−timer − 25 − ms
Timer Recurrence in Permanent Fault, Same Values as Above
6 T−timerR − 1.4 −
s
Voltage at which Pin 6 Stops Output Pulses
6
VtimerON
3.7
4.1
4.5
V
Voltage at which Pin 6 Restarts Output Pulses
6 VtimerOFF 0.9 1.0 1.1
V
Soft−Start Ending Voltage, VFB = 1.0 V
Soft−Start Charge Current
4 VSS − 2.0 − V
4 ISS 75 95 115 mA
Note 5
Soft−Start Duration with a 220 nF Capacitor (Note 4)
4 T−SS − 5.0 − ms
PROTECTION
Reference Voltage for Fast Input
13 VrefFaultF 1.0 1.05 1.1
V
Reference Voltage for Slow Input
14 VrefFaultS 0.98 1.03 1.08 V
Hysteresis for Fast Input
13 HysteFaultF
50 − mV
Hysteresis for Slow Input
14 HysteFaultS
40 − mV
Propagation Delay for Fast Fault Input Drive Shutdown
13 TpFault − 70 120 ns
Brown−Out Input Bias Current
7 IBObias − 0.02 − mA
Brown−Out Level
7
VBO
0.98 1.03 1.08
V
Hysteresis Current, Vpin 7 > VBO – A Version
7
IBO_A
23 28 33 mA
Hysteresis Current, Vpin 7 > VBO – B Version
7
IBO_B
70 83 96 mA
Latching Voltage
7
Vlatch
3.7 4.1 4.5
V
Temperature Shutdown
TSD
140 −
°C
Hysteresis
− TSDhyste −
40 − °C
4. The A version does not activate soft−start when the fast−fault is released, this is for skip cycle implementation. The B version does activate
the soft−start upon release of the fast−fault input.
5. Minimum current occurs at TJ = 0°C.
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관련 데이터시트

부품번호상세설명 및 기능제조사
NCP1395A

High Performance Resonant Mode Controller

ON Semiconductor
ON Semiconductor
NCP1395B

High Performance Resonant Mode Controller

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