Eval Kit Manual
DN[Document ID]
AS1345x
Standard Board
AS1345x-TD-AD_EK_ST ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 1
Document Feedback
AS1345x Standard Board TDFN
Content Guide
5
6
6.1
6.2
3
4
1
2
8
9
6.3
7
Introduction .......................................................................................................................... 3
Available Products ............................................................................................................... 3
Kit Content ........................................................................................................................... 4
Getting Started ..................................................................................................................... 4
Hardware Description........................................................................................................... 5
Schematics, Layers and BOM ............................................................................................. 8
Schematic of AS1345x Evaluation Board ............................................................................ 8
Layers .................................................................................................................................. 9
Bill of Materials ................................................................................................................... 10
Ordering & Contact Information ......................................................................................... 11
Copyrights & Disclaimer ..................................................................................................... 12
Revision Information .......................................................................................................... 12
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 2
Document Feedback
AS1345x Standard Board TDFN
1 Introduction
This document describes the AS1345x TDFN Evaluation Kit.
The AS1345x high efficiency DC-DC step-up converter contains an internal N-channel and an internal P-channel output isolation switch. The device operates from a 2.9V to 5.0V supply and can boost voltages up to 18V.
A hysteretic control scheme is used to provide the highest operating efficiency over a wide range of input and output load conditions. The internal MOSFET switches reduce the external component count and a high switching frequency allows the use of tiny surface mount components.
The AS1345x employ a factory set current limit to reduce ripple and external component size in low output current applications.
With a 500mA current limit the AS1345x is capable of providing 20mA @ 18V output.
2 Available Products
Devices
AS1345A
AS1345D
Peak Coil Current
100mA
500mA
Output
Adjustable
Adjustable
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 3
Document Feedback
AS1345x Standard Board TDFN
3 Kit Content
Figure 1: Kit Content
1
Label
1
Item
Evaluation Board
Comment
AS1345x 8-pin (2x2mm) TDFN
4 Getting Started
Connect your supply to VIN & GND. Be shure that the jumpers are set like you can see in the
Hardware Description below.
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 4
Document Feedback
AS1345x Standard Board TDFN
5 Hardware Description
Figure 2: Evaluation Board Overview
A
B
C
D
E
F
Label
A
B
C
D
E
F
Name
VDD
POK
ENABLE
AS1345x
VOUT
GND
Designator Description
VIN Voltage
POK
EN
U1
VOUT
GND
Power- Ok
ENABLE
Ground
Info
Supply Voltage
Measurement pin
Enable pin
DCDC stepup 500mA current limit
Voltage Output voltage
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 5
Document Feedback
AS1345x Standard Board TDFN
Figure 3: Jumper and device locations
B
A
Label
A
Name
J1
B J2
Designator Description Info
EN Enable or
Disable the
DCDC stepup converter
GND - disabled
VDD - enabled
Load Load – force pin Load- force pin
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 6
Document Feedback
AS1345x Standard Board TDFN
Figure 4: Measurement Points
A
B
H
E
F
G
C
D
Label Name
A Power- OK
Designator Description
POK 0 = VOUT < 90% of VOUTNOM
1 = VOUT > 90% of VOUTNOM
B
C
VDD
Enable
VIN
EN
Voltage supply
· on: The AS1345x is enabled
· off: The AS1345x is disabled
D
E
Feedback
VOUT
FB
VOUT
F
G
H
LX
GND
SWOUT
LX
GND
SWOUT feedback pin of resistor divider
Output voltage
The drain of the internal Nchannel MOSFET
Ground
Output pin of the internal
P-channel MOSFET
Info
Measurement Point
Measurement Point
Measurement Point
Measurement Point
Measurement Point
Measurement Point
Measurement Point
Measurement Point
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 7
Document Feedback
AS1345x Standard Board TDFN
6 Schematics, Layers and BOM
6.1 Schematic of AS1345x Evaluation Board
Figure 5: Schematic
1 2 3
A
4
A
B
Vin
EN
POK
Vin
BU1
EN
Cin
10µF
GND
BU2
EN
Rpok
100k
VDD
J1
POK
EN
1
VDD
4
2
POK
EN
SWOUT
SWOUT
L1
Cswout
10uF
10uH
AS1345
DCDC step up
U1 GND
LX
AS1345x-TDFN
7
LX
FB
3 FB
FB
LX
POK
POK
BU3
GND GND
D1
MBR0540
GND
Cout
10uF
R2
100k
GND
VOUT
R1
1M1
Vout
Cfb
47pF
BU4
GND
J2
Load GND
GND
BU5
Vout
GND
C
B
C
D
1 2 3
Size
A4
Project Title
AS1345_Evalboard_WLP_1V1
Date 20.02.2014
Originator MMT Sheet
4
3
Revision
1.1
of 3
D
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 8
Document Feedback
AS1345x Standard Board TDFN
6.2 Layers
Figure 6: Top Layer
Figure 7: Bottom Layer ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 9
Document Feedback
AS1345x Standard Board TDFN
6.3 Bill of Materials
Figure 8: BOM
Bill of Materials
Company:
Originator:
PCB Name:
PCB Version:
Report Date:
#
9
10
11
7
8
3
4
5
6
1
2
12
13
TP1
TP2
14
TP3
15
16
17
TP4
TP5
TP6
18
TP7
19
TP8
20
U1
Approved
Cf b
Cin
Cout
Csw out
D1
J1
J2
L1
R1
R2
Rpok
Designator
47pF
10µF
10uF
10uF
MBR0540
EN
Load
10uH
1M1
100k
100k
Vin
LX
Vout
EN
SWOUT
FB
POK
GND
AS1345-TDFN
Comment
AS1345_Evalboard_DFN_1V1 ams AG
MMT
AS1345_Evalboard_DFN_1V1
1.1
15.01.2014
Component_Description
MURATA -
Manufacturer
MURATA
MURATA
MURATA
MURATA
FAIRCHILD
SL11 124 36G -
MULTICOMP -
LÖTSTÜTZPUNKT
Notes
VERO
VERO
VERO
VERO
VERO
VERO ams
FISCHER ELEKTRONIK
Coilcraf t
MULTICOMP
MULTICOMP
MULTICOMP
VERO
VERO
Manufacturer Part Number
GRM1885C1H470JA01D
GRM21BR71A106KE51L
GRM31CR61E106KA12L
GRM31CR61E106KA12L
MBR0540 .
SL11 124 36G
SL11 124 36G
LPS3015-103
MC0.063W06031%1M10
MC 0.063W 0603 1% 100K
MC 0.063W 0603 1% 100K
20-313137
20-313139
20-313137
20-313139
20-313139
20-313139
20-313139
20-2137
AS1345x-BTDT-AD
Quantity
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
20 ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 10
Document Feedback
AS1345x Standard Board TDFN
7 Ordering & Contact Information
Ordering Code Description
AS1345x-TD-AD_EK_ST AS1345x Eval Kit Standard Board
Buy our products or get free samples online at:
www.ams.com/ICdirect
Technical Support is available at:
www.ams.com/Technical-Support
Provide feedback about this document at:
www.ams.com/Document-Feedback
For further information and requests, e-mail us at:
[email protected]
For sales offices, distributors and representatives, please visit:
www.ams.com/contact
Headquarters
ams AG
Tobelbaderstrasse 30
8141 Unterpremstaetten
Austria, Europe
Tel: +43 (0) 3136 500 0
Website: www.ams.com
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 11
Document Feedback
AS1345x Standard Board TDFN
8 Copyrights & Disclaimer
Copyright ams AG, Tobelbader Strasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks
Registered. All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.
Demo Kits, Evaluation Kits and Reference Designs are provided to recipient on an “as is” basis for demonstration and evaluation purposes only and are not considered to be finished end-products intended and fit for general consumer use, commercial applications and applications with special requirements such as but not limited to medical equipment or automotive applications. Demo Kits,
Evaluation Kits and Reference Designs have not been tested for compliance with electromagnetic compatibility (EMC) standards and directives, unless otherwise specified.
Demo Kits, Evaluation Kits and Reference Designs shall be used by qualified personnel only. ams AG reserves the right to change functionality and price of Demo Kits, Evaluation Kits and
Reference Designs at any time and without notice.
Any express or implied warranties, including, but not limited to the implied warranties of merchantability and fitness for a particular purpose are disclaimed. Any claims and demands and any direct, indirect, incidental, special, exemplary or consequential damages arising from the inadequacy of the provided Demo Kits, Evaluation Kits and Reference Designs or incurred losses of any kind (e.g. loss of use, data or profits or business interruption however caused) as a consequence of their use are excluded. ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services.
9 Revision Information
Changes from 1-00 (2011-Nov-15) to current revision 1-00 (2015-Feb-10)
New corporate design- 1 st
revision
Note: Page numbers for the previous version may differ from page numbers in the current revision.
Page all
ams Eval Kit Manual, Confidential
[v1-00] 2015-Feb-10
Page 12
Document Feedback
