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Features
Evaluation
Module
R-78S3.3-0.1 Evaluation Module
Caution:
ESD sensitive. Always follow ESD preventative procedures when
handling the product
Description
The R-78S3.3-0.1 Evaluation Module generates 3.3V from a single AA battery or from an external source. By
using the external input source, any voltage source (other types of batteries, energy harvesters, etc.) in the range
from 0.65V to 3.15V can be used. The evaluation module contains an AA battery holder, power switch,
R-78S3.3-0.1 boost converter and a micro-USB connector. Jumper headers are provided to allow various test
measurements to be made. An enable pin puts the R-78S into sleep mode where it draws only 7uA from the
battery.
Part
Input
Number
Voltage Range
[VDC]
R-78S3.3-0.1
0.65-3.15
Notes:
Note1: Efficiency is tested at 1.5V input voltage and full load.
Note2: Max. capacitive load is tested at nominal input and full resistive load.
Specifications
(measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Under Voltage Lockout
(3)
Overload Capability
Quiescent Current
Start-up time
Rise Time
Internal Operating Frequency
Minimum Load
Dropout Voltage
Output Ripple and Noise
ON/OFF CTRL
Input current of CTRL pin
Standby Current
Notes:
Note 3: For more information, please refer to "Overload Capability Graph" in the R-78S datasheet.
www.recom-power.com
• 3.3V from a single AA battery (boost converter or
from an external source
• Efficiency 93% , >80% at 10% load
• Input range down to 0.65V
• Input and output current measurement capability
• Micro-USB type B or 0.100" (2.54mm) pin output
!
Efficiency
Output
Max. Output
@ min. Vin
Voltage
Current
[VDC]
[mA]
[%]
3.3
100
92
Condition
DC-DC OFF
peak duty cycle 10%
20MHz BW
DC-DC ON
DC-DC OFF
(1)
Max. Capacitive
@ max. Vin
Load
(2)
[%]
[µF]
93
470
Min.
Typ.
Max.
0.4VDC
150%, 10s
160µA
2ms
800µs
1200kHz
0%
150mV
100mVp-p
Open or 0.7V ≤ V
<Vin
CTRL
Short to GND or V
<0.1V
CTRL
5µA
7µA
REV.: 0/2017
Evaluation Module
R-78S3.3-0.1-EVM-1
PA-1
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Related Manuals for Recom R-78S3.3-0.1
Summary of Contents for Recom R-78S3.3-0.1
- Page 1 Description The R-78S3.3-0.1 Evaluation Module generates 3.3V from a single AA battery or from an external source. By using the external input source, any voltage source (other types of batteries, energy harvesters, etc.) in the range from 0.65V to 3.15V can be used. The evaluation module contains an AA battery holder, power switch, R-78S3.3-0.1 boost converter and a micro-USB connector.
- Page 2 R-78S3.3-0.1-EVM-1 Evaluation Module Series R-78S Evaluation Module User Guide Figure 1: R-78S3.3-0.1 output current vs. input voltage QUICK START GUIDE Insert the AA battery into the battery holder (only one way possible). • If powering USB-powered demonstrators: plug in the micro-USB cable.
- Page 3 2 pin 0.100” (2.54mm) header for USB D+ and D- Slide switch Factory set OFF CON1 USB micro B connector R-78S3.3-0.1 boost converter *CAUTION: DO NOT PLACE A JUMPER ON J2. DOING SO WILL CAUSE THE BATTERY TO SHORT *CAUTION: *CAUTION: *CAUTION: CIRCUIT AND CREATE THE RISK OF FIRE www.recom-power.com...
- Page 4 R-78S3.3-0.1-EVM-1 Evaluation Module Series R-78S Evaluation Module User Guide SCHEMATIC Figure 3: Schematic LAYOUT Figure 4: TOP layer with components Figure 5: BOTTOM layer PA-4 REV.: 0/2017 www.recom-power.com...
- Page 5 The product information and specifications are subject to change without prior notice. RECOM products are not authorized for use in safety-critical applications (such as life support) without RECOM’s explicit written consent. A safety-critical application is defined as an application where a failure of a RECOM product may reasonably be expected to endanger or cause loss of life, inflict bodily harm or damage property. The buyer shall indemnify and hold harmless RECOM, its affiliated companies and its representatives against any damage claims in connection with the unauthorized use of RECOM products in such safety-critical applications.