R-78S.pdf 데이터시트 (총 5 페이지) - 파일 다운로드 R-78S 데이타시트 다운로드

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Features
Switching
Regulator
• Boost Converter
• Efficency 93% , >80% With 10% Load
• Input Range Down To 0.65V
• Continuous Short Circuit Protection
• 7µA Input Current In Standby
• -40°C To +100°C Operation
• IEC/EN62368-1 Certified, CB Report
DC/DC Converter
R-78S
Description
The R-78S is a DC/DC boost converter designed to run from single cell batteries. The input voltage
range of 0.65V-3.15V means that alkaline, NiCd, NiMH, zinc-carbon or lithium chemistry cells can be
used to generate a stable 3.3V output to power microprocessors, WLAN/Bluetooth modules and IoT
systems. The very high efficiency and low standby consumption can be used to extend battery lifetimes
until the „last gasp“ to get the maximum available energy out of the cell. The wide operating temperature
of -40°C to +100°C, short circuit protection, OTP, Class A EMC and 3-year warranty round off this high
performance converter.
0.1 Amp
SIP4
33 YEAR
warranty
Single Output
Selection Guide
Part
Number
Input
Output Max. Output Efficiency (1)
Max. Capacitive
Voltage Range Voltage Current @ min Vin @ max. Vin
Load (2)
[VDC] [VDC] [mA] [%] [%]
[µF]
R-78S3.3-0.1 0.65-3.15 3.3 100 92 93
100
Notes:
Note1: Efficiency is tested by 1.5V input voltage and full load.
Note2: Max. Cap Load is tested by nominal input and full resisitive load.
Specifications (measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated)
BASIC CHARACTERISTICS
Parameter
Minimum Start-up Voltage
Input Voltage Range (3)
No Load Power Consumption
Under Voltage Lockout
Quiescent Current
Start-up time
Rise Time
Internal Operating Frequency
Minimum Load
Dropout Voltage
Output Ripple and Noise
ON/OFF CTRL
Standby Current
Condition
40mA (continuous)
100mA (conitnuous)
DC-DC OFF
20MHz BW
DC-DC ON
DC-DC OFF
Min. Typ. Max.
0.8VDC
0.65VDC
1.49VDC
1.5VDC
3.15VDC
240µW
0.4VDC
160µA
2ms
800µs
1200kHz
0%
150mV
100mVp-p
Open or 0.7V VCTRL<Vin
Short to GND or VCTRL<0.1V
7µA
Notes:
Note3: For more information, please refer to output current vs input voltage graph
continued on next page
IEC/EN62368-1 certified
CB Report
EN55022 Compliant
www.recom-power.com
REV.: 2/2017
I-1

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DC/DC Converter
Specifications (measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated)
Efficiency vs. Load
100
80
60
Efficiency vs. Input Voltage
40
1.2Vin
20 1.5Vin
2.4Vin
3.0Vin
0
0
0.02 0.04 0.06 0.08
0.1
Output Current [A]
100
80
60
40
20
0
0.65 1
Output Current vs. Input Voltage
100
40% Load
75% Load
100% Load
2
Input Voltage [V]
3 3.15
80
60
40
20
0
0.65 1.2 1.5 1.8
2.4
Input Voltage [V]
3 3.15
I-2 REV.: 2/2017
R-78S
Series
www.recom-power.com

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DC/DC Converter
Specifications (measured @ ta= 25°C, 1.5Vin , full load after warm up unless otherwise stated)
REGULATIONS
Parameter
Output Accuracy
Line Regulation
Load Regulation
Condition
low line to high line, full load
10% to 100% load
PROTECTIONS
Parameter
Short Circuit Protection (SCP)
Over Temperature Protection (OTP)
Condition
below 100mW
internal IC
150°C
130°C
R-78S
Series
Value
±3.0% typ.
±0.3% typ.
±1.0% typ.
Value
continuous, auto recovery
shutdown
restart after cooling down
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Operating Altitude
Operating Humidity
Pollution Degree
MTBF
Vibration
Derating Graph
(@ Chamber and natural convection 0.1m/s)
Condition
with derating (see graph)
non-condensing
according to MIL-HDBK-217F, G.B.
+25°C
+90°C
100
Value
-40°C to +100°C
+105°C
0.015%/°C
5000m
5% to 95% RH
PD2
78172 x 103 hours
6963 x 103 hours
10-55Hz, 2G, 30min along X, Y and Z axis
80
70
60
50
40
20 Vin1.8V
Vin<1.8V
0
-40 -20 0 20 40 60 80 90100 120
Ambient Temperature [°C]
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Audio/video, information and communication technology equipment
Safety requirements (CB Scheme)
RoHs2+
Report / File Number
L0339m39-B1-L
continued on next page
www.recom-power.com
REV.: 2/2017
Standard
IEC62368-1, 2nd Edition, 2014
EN62368-1, 2014
RoHS 2011/65/EU + AM2015/863
I-3