NCP5230MNTWG

NCP5230
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10
Vin
VCC
OSC/EN
Vout.
FB
LG (Stays Low
until first PWM
pulse except in
case of a Fault)
UG
v
SoftStart Normal
UV monitor
OCP/
Normal
shutdown
v
Vth_disoff
(50%V
ref
)
UVLO_VCCPOR_VCC
V
ref
= 0.8 V
OVP
(125%V
ref
)
Softstop
~5ms@200kHzz
80% V
rer
1024cycle
0.75V
1.24V
Pre-OVP valid
Figure 7. Start Up and Shutdown Timing Diagram
NCP5230
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11
VCC> POR &
VCCDR > UVLO_ VCCDR
BOOT >UVLO_ BOOT
Soft Start ,
Normal Operation
OCP, OVP, UVP detection
OVP OCP
TG OFF, BG ON
PGOOD=0
TG OFF, BG
OFF
Vout < Vth_disoff
Vo discharge
mode
No
Yes
Yes
OC
OV
Vcc<UVLO_Vcc, Or
EN<Vdis_th Or
Boot<UVLO_Boot
No
PWR
ON
Fosc detection
OVP
Yes
No
4 times
reentry
UVP
UV (after Vout reaches UV
threshold in softstart )
TG OFF, BG
OFF
PGOOD=0
After 4 times reentry for
1st threshod
or immediately over 2nd
threshold
PreOVP detection
VCC> POR &
VCCDR> UVLO _VCCDR (16
pin)
Yes
No
BG on
VSEN >OV Vth
EN>Vdis_th
No
Figure 8. State Diagram
NCP5230
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12
PACKAGE DIMENSIONS
QFN16 3x3, 0.5P
CASE 485G
ISSUE F
16X
SEATING
PLANE
L
D
E
0.10 C
A
A1
e
D2
E2
b
1
4
8
9
16
NOTES:
1. DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2. CONTROLLING DIMENSION: MILLIMETERS.
3. DIMENSION b APPLIES TO PLATED
TERMINAL AND IS MEASURED BETWEEN
0.25 AND 0.30 MM FROM TERMINAL.
4. COPLANARITY APPLIES TO THE EXPOSED
PAD AS WELL AS THE TERMINALS.
B
A
0.10
C
TOP VIEW
SIDE VIEW
BOTTOM VIEW
PIN 1
LOCATION
0.05 C
0.05 C
(A3)
C
NOTE 4
16X
0.10 C
0.05 C
A B
NOTE 3
K
16X
L1
DETAIL A
L
ALTERNATE TERMINAL
CONSTRUCTIONS
A1
A3
L
DETAIL B
MOLD CMPDEXPOSED Cu
ALTERNATE
CONSTRUCTIONS
DETAIL A
DETAIL B
*For additional information on our PbFree strategy and soldering
details, please download the ON Semiconductor Soldering and
Mounting Techniques Reference Manual, SOLDERRM/D.
RECOMMENDED
2X
0.50
PITCH
1.84
3.30
1
DIMENSIONS: MILLIMETERS
0.58
16X
2X
0.30
16X
OUTLINE
PACKAGE
2X
2X
0.10 C A B
e/2
SOLDERING FOOTPRINT*
DIM MIN NOM MAX
MILLIMETERS
A 0.80 0.90 1.00
A1 0.00 0.03 0.05
A3 0.20 REF
b 0.18 0.24 0.30
D 3.00 BSC
D2 1.65 1.75 1.85
E 3.00 BSC
E2 1.65 1.75 1.85
e 0.50 BSC
K 0.18 TYP
L 0.30 0.40 0.50
L1 0.00 0.08 0.15
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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
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Phone: 81358171050
NCP5230/D
LITERATURE FULFILLMENT:
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Fax: 3036752176 or 8003443867 Toll Free USA/Canada
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Sales Representative

NCP5230MNTWG

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Switching Controllers BUCK CONTROLLER
Lifecycle:
New from this manufacturer.
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