NCP6153
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28
Under Voltage Monitor
The output voltage is monitored at the output of the
differential amplifier for UVLO. If the output falls more
than 300 mV below the DACDROOP voltage the UVLO
comparator will trip sending the VR_RDY signal low.
Over Voltage Protection
During normal operation the output voltage is monitored
at the differential inputs VSP and VSN. If the output voltage
exceeds the DAC voltage by approximately 300 mV, PWMs
will be forced low until the voltage drops below the OVP
threshold. After the first OVP trip the DAC will ramp down
to zero to avoid a negative output voltage spike during
shutdown. When the DAC gets to zero the PWMs will be
forced low and the DRVON will remain high. To reset the
part the Enable pin must be cycled low. During softstart and
DVID, the above OVP is disabled. This allows the controller
to start up without false triggering the OVP. Meanwhile,
there is a second OVP protection which is always enabled.
The second OVP monitors CSREF(A) Pin voltage with a
protection threshold of 2.3 V.
Figure 16. OVP Threshold Behavior
DAC
VSP_VSN
OVP Threshold
Latch Off
OVP
Triggered
PWM
Layout Notes
The NCP6153 has differential voltage and current
monitoring. This improves signal integrity and reduces
noise issues related to layout for easy design use. To insure
proper function there are some general rules to follow.
Always place the inductor current sense RC filters as close
to the CSN and CSP pins on the controller as possible. Place
the V
CC
decoupling cap as close as possible to the controller
VCC pin, the resistor in series should always be no higher
than 2.2 W to avoid large voltage drop. The high frequency
filter cap on CSREF and the 10 W CSREF resistors should
be placed close to the controller. The small high feed back
cap from COMP to FB should be as close to the controller
as possible. Please minimize the capacitance to ground of
the FB traces by keeping them short. The filter cap from
CSCOMP to CSREF should also be close to the controller.
ORDERING INFORMATION
Device Package Shipping
NCP6153MNTWG QFN52 Single Row
(PbFree)
2500 / Tape & Reel
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.
NCP6153
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29
PACKAGE DIMENSIONS
QFN52 6x6, 0.4P
CASE 485BE
ISSUE B
SEATING
NOTE 4
K
0.10 C
(A3)
A
A1
D2
b
1
14
27
52
E2
52X
L
BOTTOM VIEW
DETAIL C
TOP VIEW
SIDE VIEW
D
A B
E
0.10 C
PIN ONE
LOCATION
0.10 C
0.08 C
C
40
e
A0.07 BC
0.05 C
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSIONS: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED
TERMINAL AND IS MEASURED BETWEEN
0.15 AND 0.30mm FROM TERMINAL TIP
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
DIM MIN MAX
MILLIMETERS
A 0.80 1.00
A1 0.00 0.05
A3 0.20 REF
b 0.15 0.25
D 6.00 BSC
D2 4.60 4.80
E 6.00 BSC
4.80E2 4.60
e 0.40 BSC
L 0.25 0.45
L1 0.00 0.15
NOTE 3
PLANE
DIMENSIONS: MILLIMETERS
0.25
4.80
0.40
4.80
52X
0.63
52X
6.40
6.40
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
SOLDERING FOOTPRINT*
DETAIL B
L1
DETAIL A
L
ALTERNATE TERMINAL
CONSTRUCTIONS
L
DETAIL B
MOLD CMPDEXPOSED Cu
ALTERNATE
CONSTRUCTION
K 0.30 REF
PITCH
52X
PKG
OUTLINE
L2 0.15 REF
L2
DETAIL C
8 PLACES
L2
DETAIL A
DETAIL D
8 PLACES
0.11
0.49
DETAIL D
ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice
to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability
arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.
“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All
operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights
nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should
Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,
and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal
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PUBLICATION ORDERING INFORMATION
N. American Technical Support: 8002829855 Toll Free
USA/Canada
Europe, Middle East and Africa Technical Support:
Phone: 421 33 790 2910
Japan Customer Focus Center
Phone: 81358171050
NCP6153/D
LITERATURE FULFILLMENT:
Literature Distribution Center for ON Semiconductor
P.O. Box 5163, Denver, Colorado 80217 USA
Phone: 3036752175 or 8003443860 Toll Free USA/Canada
Fax: 3036752176 or 8003443867 Toll Free USA/Canada
Email: orderlit@onsemi.com
ON Semiconductor Website: www.onsemi.com
Order Literature: http://www.onsemi.com/orderlit
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l
Sales Representative

NCP6153MNTWG

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Switching Controllers DUAL OUTPUT Cntrllr
Lifecycle:
New from this manufacturer.
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