1
AN33014UA
Evaluation Board Manual
Panasonic Corporation
Automotive & Industrial Systems Company
Semiconductor Business Division
2
AN33014UA Evaluation board (front side)
GND
VCC
SW1
Enable control switch
Upper side (high): DCDC ON
Lower side (low): DCDC OFF
JPFLAG
If you connect this jumper
switch, the FLAG pin will be
connected to VREG(4.9V) via
a 200kΩ-register.
RT resistor
DCDC output pi n
(sense pin / force
pin)
Output setting: 5V
SYNC input terminal
(external clock inpu t)
RSENSE
Current detect resistor
R-RADJ
CFB adjustin g resistor
If JP4 is selected,
RT pin connected 130kW.
This setting is Fsw = 490kHz.
Ferrite beads
MPZ1608S300A
Snubber circuit
SS, CT capacitor TL capacitor
VREG capacitor
BT capacitor
JP3
JP4
JP5
JP3
JP4
JP5
JP3
JP4
JP5
Select JP3:
RT=22kW
Fsw = 2MHz
Select JP5:
RT=330kW
Fsw = 200kHz
(below setting can select by JP3 or JP5)
C-VOUT1, 2
Output capacitor
Input capacitor
Coil
This is a two layer circuit board. The front side is shown below. (The back side is shown on the next page.)
3
AN33014UA Evaluation board (back side)
This is a two layer circuit board. The back side is shown below. (The front side is shown on the previous page.)
The RC constant for phase compensation
is set for output voltage
4
AN33014UA Evaluation board (schematic)
OSC
13
SS
ERAMP
Current
feed back
+
OCP
C-SS
C-VOUT1
CNT
Ext.CLK
EN
16
12
FB 11
COMP 10
SGND
7 N.C.
VREG
9
18 RADJ
FLAG 19
SYNC 17
RT 14
SST
PWM PRIDRV
PVCC
VCC
6
22 BT
1 N.C.
CBT 5V
L1
C-TL
RFLAG
CVCC3
CVCC4
CVCC5
TL 20
5 V to 25 V
15
CT
C-CT
(for Pull-up)
3 N.C.
BTVCC
21
PLL
CVREG
4 PVCC1
2 RSO
24 LX
OVP
SCP
VREG
VREF
(BGR)
TSD
UVLO
VINT OVP
(VCC)
23
PGND
Timer
Latch
8 RSIN
C-VOUT2
5 PVCC2
RA-1 RA-2
RSENSE
R-RADJ
RB-1 RB-2
CS1
RS1
C3
C1
R1
R2
C2
D1
RS2
R-RT2 R-RT3
R-RT1
JP3 JP4 JP5
JPFLAG
R7 R8
R9
RBTVCC
5
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS2012_[EIA0805]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
3.8(L) x 2.4(W)
8.3(L) x 8.3(W)
JIS1608_[EIA0603]
JIS322_[EIA1210]
JIS5750[EIA2220]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
JIS1608_[EIA0603]
Size
Timer Latch settingMurata
0.1μF
GCM188R11C104KA01JC-TL Soft Start settingMurata
0.1μF
GCM188R11C104KA01JC-SS LPF for PLLMurata
0.1μF
GCM188R11C104KA01JC-CT
OSC Setting Resistor (Fsw = 1370kHz at selecting JP5)PanasonicR=39kERA3AEB393VR-RT3
OSC Setting Resistor (Fsw = 2000kHz at selecting JP3)PanasonicR=22kERA3AEB223VR-RT1
for EvaluationPanasonicR=0ERJ3GEY0R00VRA-2,RB-2
Snubber CircuitMurata3300pFGCM1882C1H332JA01JCS1 Snubber CircuitPanasonicR=220ERA3AEB221VRS1
Output Current Sense Resistor PanasonicR=50mERJ6BWFR050VRSENSE for EvaluationPanasonicR=0ERJ3GEY0R00VR7,R8,R9,RBTVCC
Ferrite Beads for EMI filterTDK30 ohm at 100MHzMPZ1608S300ARS2
Current Feedback Adjustment Resistor PanasonicR=30kERA3AEB303VR-RADJ
Compensation & Feedback ResistorPanasonicR=30kERA3AEB303VRA-1 Compensation & Feedback ResistorPanasonicR=7.5kERA3AEB752VRB-1
Compensation CapacitorMurata470pFGCM1882C1H471JA01JC2
Output CapacitorMurata
0.1μF
GCM188R11C104KA01JC-VOUT2
Compensation CapacitorMurata27pFGCM1882C1H270JA01JC3 VREG CapacitorMurata
1μF
GCM188R71C105KA49JCVREG
OSC Setting Resistor (Fsw = 490kHz at selecting JP4)PanasonicR=130kERA3AEB134VR-RT2
Pull-up ResistorPanasonicR=200kERA3AEB204VRFLAG
Compensation & Feedback ResistorPanasonicR=1.5kERA3AEB152VR2 Compensation & Feedback ResistorPanasonicR=7.5kERA3AEB752VR1 Schottky DiodePanasonic-DB24416D1 InductorSUMIDA
10μH
CDRH8D43-100NCL1
Output Capacitor
TAIYO,YUDE
N
22μF
TMK325C7226MM-TC-VOUT1
Input CapacitorTDK
22μF
CKG57NX7R1H226MTCVCC3, CVCC4, CVCC5
Compensation CapacitorMurata2.2nFGCM1882C1H222JA01JC1
Bootstrap CapacitorMurata
0.1μF
GCM188R11C104KA01JCBT DescriptionMakerValuePart NameBoard Component Name
AN33014UA Evaluation board (components)
The BOM of this board is shown below.
Table 1 : compo nent on the evaluation board (reference)
Note: The specifications of the BOM are reference values. Other components might be mounted depending on target values of output voltage, frequency, etc.
Request for your special attention and precautions in using the technical information and
semiconductors described in this book
(1) If any of the products or technical information described in this book is to be exported or provided to non-residents, the laws and
regulations of the exporting country, especially, those with regard to security export control, must be observed.
(2) The technical information described in this book is intended only to show the main characteristics and application circuit examples
of the products. No license is granted in and to any intellectual property right or other right owned by Panasonic Corporation or any
other company. Therefore, no responsibility is assumed by our company as to the infringement upon any such right owned by any
other company which may arise as a result of the use of technical information described in this book.
(3) The products described in this book are intended to be used for general applications (such as office equipment, communications
equipment, measuring instruments and household appliances), or for specific applications as expressly stated in this book.
Consult our sales staff in advance for information on the following applications:
– Special applications (such as for airplanes, aerospace, automotive equipment, traffic signaling equipment, combustion equipment,
life support systems and safety devices) in which exceptional quality and reliability are required, or if the failure or malfunction of
the products may directly jeopardize life or harm the human body.
It is to be understood that our company shall not be held responsible for any damage incurred as a result of or in connection with
your using the products described in this book for any special application, unless our company agrees to your using the products in
this book for any special application.
(4) The products and product specifications described in this book are subject to change without notice for modification and/or im-
provement. At the final stage of your design, purchasing, or use of the products, therefore, ask for the most up-to-date Product
Standards in advance to make sure that the latest specifications satisfy your requirements.
(5) When designing your equipment, comply with the range of absolute maximum rating and the guaranteed operating conditions
(operating power supply voltage and operating environment etc.). Especially, please be careful not to exceed the range of absolute
maximum rating on the transient state, such as power-on, power-off and mode-switching. Otherwise, we will not be liable for any
defect which may arise later in your equipment.
Even when the products are used within the guaranteed values, take into the consideration of incidence of break down and failure
mode, possible to occur to semiconductor products. Measures on the systems such as redundant design, arresting the spread of fire
or preventing glitch are recommended in order to prevent physical injury, fire, social damages, for example, by using the products.
(6) Comply with the instructions for use in order to prevent breakdown and characteristics change due to external factors (ESD, EOS,
thermal stress and mechanical stress) at the time of handling, mounting or at customer's process. When using products for which
damp-proof packing is required, satisfy the conditions, such as shelf life and the elapsed time since first opening the packages.
(7) This book may be not reprinted or reproduced whether wholly or partially, without the prior written permission of our company.
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