Panasonic NN30320A User Manual Download Page 8 | Manualshive

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Panasonic NN30320A User Manual Download Page 8

8

14

NN30320A-EVB

User’s Guide

for Evaluation Board

Revised

Total Pages

Page

Automotive & Industrial Systems Company, Panasonic Corporation

Regulations
No.

320R202E

2013-05-07

Note: The parameters above is subject to change for improvement without notice.

This section describes how to properly connect, set up and use the Evaluation Board.

4 Test Setup

4.1 Main Test Points and Jumpers

The Evaluation Board is provided with test points and jumpers as shown in Table 6.
A power supply cable of supplying sufficient current must be connected to the pad PVIN. The load must be connected to
the pad DCDCOUT. Wire lengths must be minimized to reduce losses in the wires.
Test point PVIN provides a place to monitor the input voltages with GND providing a convenient ground reference.
Test point DCDCOUT is used to monitor the output voltage with GND as the ground reference.
Jumper Setup is shown in Table 7.

Reference Designator

Default

Function

Main

Test

Points

PVIN

-

PVIN test point at PVIN connector

DCDCOUT

-

DCDCOUT test point at DCDCOUT connector

V-EN

-

Test point supplying voltage to EN pin

Jumpers

J-MODE

VREG

3-pin headers to choose mode. Connect MODE to GND to choose
SKIP mode, to VREG to choose FCCM mode.

J-FSEL

-

3-pin headers to choose frequency. Connect FSEL to GND to
choose 430kHz, open to choose 650kHz, to VREG to choose
210kHz

J-EN

V-EN

3-pin headers for enable of NN30320A. Connect EN to GND to
disable, to V-EN to enable.

J-PGOOD

open

3-pin headers for pull-up of PGOOD. Connect to VREG to allow
pull up to VREG pin, to V-EXT to allow pull up to V-EXT pin.

Table 6. Function of Main Test points and Jumpers

Jumper

Setup

Mode

Setup

Mode

Setup

Mode

J-MODE

FCCM
mode

SKIP mode

J-FSEL

210kHz

650kHz

430kHz

J-EN

enable

disable

J-PGOOD

Pull up to
VREG

Pull up to
V-EXT

Table 7. Jumper Setup

V-EN
EN pin
GND

J-EN

V-EN
EN pin
GND

J-EN

VREG
MODE pin
GND

J-MODE

VREG
MODE pin
GND

J-MODE

VREG
FSEL pin
GND

J-FSEL

VREG
FSEL pin
GND

J-FSEL

VREG
FSEL pin
GND

J-FSEL

Pull up to VREG
PGOOD pin
Pull up to V-EXT

J-PGOOD

Pull up to VREG
PGOOD pin
Pull up to V-EXT

J-PGOOD

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Summary of Contents for NN30320A

Page 1: ...sonic Corporation Regulations No 320R202E The product specifications described in this book are subject to change without notice for the product which is currently under development At the final stage of your design purchasing or use of the product therefore ask for the most up to date Product Standards in advance to make sure that the latest specifications satisfy your requirements 2013 05 07 ...

Page 2: ...o 320R202E 2013 05 07 Contents 1 Introduction 1 1 Overview 3 1 2 Features 3 1 3 Typical Applications 3 1 4 Package 3 1 5 Type 3 1 6 Block Diagram 4 2 Evaluation Board 2 1 Appearance 5 2 2 Jumpers setup 6 3 Schematic 7 4 Test Setup 4 1 Main Test Points and Jumpers 8 4 2 Output Voltage Setpoint 9 5 Bill of Materials 10 6 Board Layout 11 Usage Notes 14 ...

Page 3: ...external parts Output voltage is adjustable by user Maximum current is 3 A 1 2 Features High speed response DC DC Step Down Regulator circuit that employs the hysteretic control system Integrated Two 20mΩ Typ MOSFETs for high efficiency Switchable FCCM continuous SKIP discontinuous mode Input Voltage Range 4 5V 28V Output Voltage Range 0 75V 5 5V Selectable Switching Frequency 210kHz 430kHz 650kHz...

Page 4: ...ic Corporation Regulations No 320R202E 2013 05 07 Note The parameters above is subject to change for improvement without notice 1 6 Block Diagram Figure 1 Block Diagram Driver Control Logic CTL VREF SS VREG Soft Start VREF Soft Start VOUT MODE VFB VREG FSEL EN SS AVIN PGOOD BST PVIN LX PGND AGND AVIN PVIN VREG ON OFF VOUT ...

Page 5: ... 05 07 Note The parameters above is subject to change for improvement without notice 2 Evaluation Board 2 1 Appearance Figure 2 Appearance of Evaluation Board GND PVIN Force PVIN Sense VOUT Sense Jumper for MODE VOUT Force GND Jumper for FSEL Jumper for EN Jumper for PGOOD Load A ｰｰｰｰ V V Please see the next page for further details about jumpers setup NN30320A ...

Page 6: ...DE Control modes J MODE Table 3 J FSEL Control SW frequency Table 5 J PGOOD Control the Voltage PGOOD pin pulled up to 2 2 Jumpers Setup MODE pin FSEL pin EN pin PGOOD pin are able to be controlled by J MODE J FSEL J EN J PGOOD Jumper Status enable disable Table 4 J EN Control enable disable J EN Jumper Frequency 210kHz 650kHz 430kHz J FSEL J FSEL Jumper Pull up to VREG V EXT J EN J MODE J FSEL Fi...

Page 7: ...6 17 18 19 20 21 22 23 24 1 2 3 4 5 6 PGND FSEL R FB5 LX BST MODE AGND AVIN EN VREG VFB VOUT SS PGOOD AGND PVIN PVIN C PVIN1 C PVIN2 C PVIN3 C BST AVIN J MODE VREG J PGOOD J EN VREG J FSEL V EXT R PG PGOOD PVIN AVIN C SS V EN VREG Solder Land_PVIN R AVIN To AVIN To PVIN C99 Solder Land_GND GND To GND GND R FB3 R FB1 R VFB R FB2 R FB4 GND C DCDCOUT1 C DCDCOUT2 C DCDCOUT3 CAP_GND GND CAP_GND Solder ...

Page 8: ... Function Main Test Points PVIN PVIN test point at PVIN connector DCDCOUT DCDCOUT test point at DCDCOUT connector V EN Test point supplying voltage to EN pin Jumpers J MODE VREG 3 pin headers to choose mode Connect MODE to GND to choose SKIP mode to VREG to choose FCCM mode J FSEL 3 pin headers to choose frequency Connect FSEL to GND to choose 430kHz open to choose 650kHz to VREG to choose 210kHz ...

Page 9: ...Board it is necessary to change the value of resister R FB1 R FB4 The values of R FB1 R FB4 for a specific output value can be calculated using Equation 1 For output voltage from 0 75V to 5 5V Table 8 lists the R FB1 R FB4 values for some common output voltage Vout R FB3 R FB4 R FB1 R FB2 R FB3 R FB4 x 0 6 1 Output Voltage V R FB1 k ohm R FB2 k ohm R FB3 k ohm R FB4 k ohm 1 00 1 0 0 1 5 0 1 05 1 2...

Page 10: ...3 1 0 1uF Capacitor Ceramic 100V X7R 10 0603 Murata GRM188R72A104KA35L C SS 1 10nF Capacitor Ceramic 100V X7R 10 0603 Murata GRM188R72A103KA01L C VREG 1 1 0uF Capacitor Ceramic 25V X7R 10 0603 Murata GRM188R71E105KA12L L LX 1 1 0uH Inductor 8 1A 6 9mΩ 0 276 0 260 inch Panasonic ETQP3W1R0WFN R AVIN 1 0 Resistor Chip 0 1W 0603 Panasonic ERJ3GEY0R00V R FB1 2 1 3 3k Resistor Chip 0 1W 1 0603 Panasonic...

Page 11: ... Corporation Regulations No 320R202E 2013 05 07 Note The parameters above is subject to change for improvement without notice The board layout for the evaluation board is shown in Figure 6 through Figure 11 Figure 6 Top Layer with silk screen Top View Figure 7 Bottom Layer with silk screen Bottom View 6 Board Layout NN30320A ...

Page 12: ...d Revised Total Pages Page Automotive Industrial Systems Company Panasonic Corporation Regulations No 320R202E 2013 05 07 Note The parameters above is subject to change for improvement without notice Figure 8 Top Layer Top View Figure 9 Layer 2 Top View ...

Page 13: ...evised Total Pages Page Automotive Industrial Systems Company Panasonic Corporation Regulations No 320R202E 2013 05 07 Note The parameters above is subject to change for improvement without notice Figure 10 Layer 3 Top View Figure 11 Bottom Layer Top View ...

Page 14: ...t of our IC being used by our customers not complying with the applicable laws and regulations 6 Pay attention to the direction of the IC When mounting it in the wrong direction onto the PCB printed circuit board it might be damaged 7 Pay attention in the PCB printed circuit board pattern layout in order to prevent damage due to short circuit between pins In addition refer to the Pin Description f...

Page 15: ...on 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 fo...

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