ncp1560hdr2g ON Semiconductor, ncp1560hdr2g Datasheet

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ncp1560hdr2g

Manufacturer Part Number
ncp1560hdr2g
Description
Full Featured Voltage Mode Pwm Controller
Manufacturer
ON Semiconductor
Datasheet
NCP1560
Full Featured Voltage Mode
PWM Controller
flexibility needed to implement voltage−mode control in high
performance single ended DC−DC converters. This device cost
effectively reduces system part count with the inclusion of a high
voltage startup regulator that operates over a wide input range of
21.5 V to 150 V. The NCP1560 provides two control outputs, OUT1
which controls the main PWM switch and OUT2 with adjustable
overlap delay, which can control a synchronous rectifier switch or an
active clamp/reset switch. Other distinctive features include: two
mode over current protection, line under/overvoltage lockout, fast line
feedforward, soft−start and a maximum duty cycle limit.
Features
Typical Applications
*For additional information on our Pb−Free strategy and soldering details, please
© Semiconductor Components Industries, LLC, 2006
July, 2006 − Rev. 7
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
The NCP1560 PWM controller contains all the features and
Minimum Operating Voltage of 21.5 V
Internal High Voltage Startup Regulator
Dual Control Outputs with Adjustable Overlap Delay
Single Resistor Oscillator Frequency Setting
Fast Line Feedforward
Line Under/Overvoltage Lockout
Dual Mode Overcurrent Protection
Programmable Maximum Duty Cycle Control
Maximum Duty Cycle Proportional to Line Voltage
Programmable Soft−Start
Precision 5.0 V Reference
Pb−Free Package is Available*
Telecommunication Power Converters
Industrial Power Converters
High Voltage Power Modules
+42 V Automotive Systems
Control Driven Synchronous Rectifier Power Converters
V
in
+
UV/OV
Overlap
Delay
NCP1560
Startup
V
t
D
in
OUT1
OUT2
FF
Feedforward
Figure 1. Active−Clamp Forward Converter
Driver
M1
TX
1
C
clamp
Drive
SR
M
†For information on tape and reel specifications,
NCP1560HDR2
NCP1560HDR2G
clamp
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
16
CASE 751B
Device
Opto
D SUFFIX
SO−16
DC
UV/OV
C
ORDERING INFORMATION
NCP1560 = Device Code
A
WL
Y
WW
SKIP
MAX
1
NC
CS
V
FF
R
PIN CONNECTIONS
in
T
http://onsemi.com
1
L
out
= Assembly Location
= Wafer Lot
= Year
= Work Week
(Pb−Free)
C
Package
SO−16
SO−16
out
Amplifier
Publication Order Number
Error
MARKING DIAGRAM
+
16
1
16
2500/Tape & Reel
2500/Tape & Reel
V
AWLYWW
NCP1560
V
OUT1
GND
OUT2
t
V
V
SS
out
D
AUX
REF
EA
Shipping
NCP1560/D

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ncp1560hdr2g Summary of contents

Page 1

... DC SS MAX ORDERING INFORMATION Device Package Shipping NCP1560HDR2 SO−16 2500/Tape & Reel NCP1560HDR2G SO−16 2500/Tape & Reel (Pb−Free) †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. L out ...

Page 2

High Voltage V Startup in Regulator UV UV/OV Fault Detection CS CSKIP R T Oscillator FF DC MAX Figure 1. Simplified Block Diagram 5.0 V Reference Delay Output Modulator Logic Drivers http://onsemi.com 2 V AUX V REF OUT1 OUT2 t ...

Page 3

Disable START 16 V AUX C AUX + 14 V AUX(on)/AUX(off) − GND Disable_V − 1.52 V − 2 UV/OV + − + 3.61 V − V REF 12.3 mA Disable − ...

Page 4

PIN DESCRIPTION Pin Name 1 V This pin is connected to the bulk DC input voltage supply. A constant current source supplies current from in this pin to the capacitor connected on the V range is 21 150 ...

Page 5

MAXIMUM RATINGS Symbol V Input Line Voltage in V Auxiliary Supply Voltage AUX I Auxiliary Supply Input Current AUX V OUT1 and OUT2 Voltage OUT I OUT1 and OUT2 Output Current OUT V 5.0 V Reference Voltage REF I 5.0 ...

Page 6

ELECTRICAL CHARACTERISTICS R = 60.4 kW 432 kW, for typical values Characteristic STARTUP CONTROL AND V REGULATOR AUX V Regulation AUX Startup Threshold/V Regulation Peak (V AUX Minimum Operating V Valley Voltage After Turn−On AUX ...

Page 7

ELECTRICAL CHARACTERISTICS R = 60.4 kW 432 kW, for typical values Characteristic OSCILLATOR Frequency (R = 101 kW 25° −40°C to 125°C J Frequency ...

Page 8

STARTUP THRESHOLD MINIMUM OPERATING 6 THRESHOLD 5 −50 − JUNCTION TEMPERATURE (°C) J Figure 3. Auxiliary Supply Voltage Thresholds versus Junction Temperature 17.5 17.0 16.5 16.0 15.5 15.0 ...

Page 9

OSC −50 − JUNCTION TEMPERATURE (°C) J Figure 9. Operating Auxiliary Supply Current versus Junction Temperature 160 150 OV HYSTERESIS 140 ...

Page 10

T , JUNCTION TEMPERATURE (°C) J Figure 15. Oscillator Frequency versus Junction Temperature −50 −25 0 ...

Page 11

T , JUNCTION TEMPERATURE (°C) J Figure 21. V Input Resistance versus EA Junction Temperature 5.03 5. REF 4. REF ...

Page 12

Measured from 10 AUX T = 25° 100 C , LOAD CAPACITANCE (pF) L Figure 27. Outputs Rise ...

Page 13

Line Under/Overvoltage Shutdown The NCP1560 incorporates a line under/overvoltage shutdown (UV/OV) circuit. The undervoltage (UV) threshold is 1.52 V and the overvoltage threshold (OV) is 3.61 V, for a ratio of 1:2.4. The UV/OV circuit can be biased using an ...

Page 14

Once the condition is removed and V reaches 11 V, the controller initiates a soft−start cycle. Figure 31 shows the relationship between the UV/OV voltage, the outputs and the soft−start voltage. V AUX(on) V AUX V AUX(off) ...

Page 15

Current Limit The NCP1560 has two over current protection modes, cycle−by−cycle and cycle skip. It allows the NCP1560 to handle momentary and hard shorts differently for the best tradeoff in performance and safety. The outputs are disabled typically 90 ns ...

Page 16

Maximum Duty Cycle A dedicated internal comparator limits the maximum ON time of OUT1 by comparing the FF Ramp Ramp voltage exceeds V , the output of the Max DC(inv) DC Comparator goes high. This will reset ...

Page 17

... If the control outputs need to drive a large capacitive load, AUX a driver should be used between the NCP1560 and the load. ON Semiconductor’s MC33152 is a good selection for an integrated driver. Figures 27 and 28 shows the relationship between the output’s rise and fall times vs capacitive load. ...

Page 18

Figure 36. Board Arrangement http://onsemi.com 18 2.70” ...

Page 19

R31 10 C20 330 C19 330 C25 0.1 C18 47 C17 47 R20 C16 47 C15 47 NTB75N03 L09 X4 X5 MMBT2907 R25 10 k MMBD914 R24 C22 1000 p R23 R27 6.2 0 (Short) 1T 6,7 ...

Page 20

... Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 5163, Denver, Colorado 80217 USA Phone: 303−675−2175 or 800−344−3860 Toll Free USA/Canada Fax: 303− ...

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