R-78S [RECOM]
Boost Converter;
| 型号： | R-78S |
| 厂家： | 
RECOM INTERNATIONAL POWER |
| 描述： | Boost Converter |
| 文件： | 总5页 (文件大小：457K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
• Boost Converter
Features
• 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
• EN62368-1 + AM2 (pending)
DC/DC Converter
Switching
Regulator
R-78S
Description
0.1 Amp
SIP4
Single Output
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.
Selection Guide
Part
Input
Output Max. Output
Efficiency (1)
Max. Capacitive
Load (2)
Number
Voltage Range Voltage
Current
[mA]
@ min Vin
@ max. Vin
[%]
[VDC]
[VDC]
[%]
[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 @ = 25°C, 1.5Vin , full load after warm up unless otherwise stated)
ta
EN62368-1 (pending)
EN55022 compliant
BASIC CHARACTERISTICS
Parameter
Condition
Min.
Typ.
Max.
Minimum Start-up Voltage
0.8VDC
40mA (continuous)
100mA
0.65VDC
1.5VDC
Input Voltage Range
3.15VDC
No Load Power Consumption
Under Voltage Lockout
Quiescent Current
Start-up time
240µW
0.4VDC
160µA
2ms
DC-DC OFF
800µs
Rise Time
1200kHz
0%
Internal Operating Frequency
Minimum Load
Dropout Voltage
150mV
100mVp-p
Output Ripple and Noise
20MHz BW
Open or 0.7V ≤ VCTRL<Vin
Short to GND or VCTRL<0.1V
DC-DC ON
DC-DC OFF
ON/OFF CTRL
7µA
Standby Current
continued on next page
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REV.: 0/2017
I-1
R-78S
DC/DC Converter
Specifications (measured @ = 25°C, 1.5Vin , full load after warm up unless otherwise stated)
ta
Series
Efficiency vs. Load
100
80
60
40
20
0
1.2Vin
1.5Vin
2.4Vin
3.0Vin
0
0.02
0.04
0.06
0.08
1.0
Output Current [A]
Efficiency vs. Input Voltage
100
80
60
40
20
0
40% Load
75% Load
100% Load
0.65
1
2
3 3.15
Input Voltage [V]
Output Current vs. Input Voltage
100
80
60
40
20
0
0.65
1.2 1.5
1.8
2.4
3 3.15
Input Voltage [V]
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R-78S
DC/DC Converter
Specifications (measured @ = 25°C, 1.5Vin , full load after warm up unless otherwise stated)
ta
Series
REGULATIONS
Parameter
Condition
Value
3.0% typ.
0.3% typ.
1.0% typ.
Output Accuracy
Line Regulation
Load Regulation
low line to high line, full load
10% to 100% load
PROTECTIONS
Parameter
Condition
Value
Short Circuit Protection (SCP)
below 100mW
continuous, auto recovery
≥ 150°C
≤ 130°C
shutdown
restart after cooling down
Over Temperature Protection (OTP)
internal IC
ENVIRONMENTAL
Parameter
Operating Temperature Range
Maximum Case Temperature
Temperature Coefficient
Operating Altitude
Condition
with derating (see graph)
Value
-40°C to +100°C
+105°C
0.015%/°C
2000m
Operating Humidity
non-condensing
5% to 95% RH
PD2
Pollution Degree
+25°C
+90°C
78172 x 103 hours
6963 x 103 hours
MTBF
according to MIL-HDBK-217F, G.B.
Vibration
10-55Hz, 2G, 30min along X, Y and Z axis
Derating Graph
(@ Chamber and natural convection 0.1m/s)
100
80
70
60
40
20
0
50
Vin≥1.8V
Vin<1.8V
-40 -20
0
20
40 60
80 100 120
90
Ambient Temperature [°C]
SAFETY AND CERTIFICATIONS
Certificate Type (Safety)
Audio/video, information and communication technology equipment Safety requirements
RoHs2+
Report / File Number
Standard
EN62368-1, 2nd Edition , 2014
RoHS 2011/65/EU + AM2015/863
(pending)
continued on next page
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I-3
R-78S
DC/DC Converter
Specifications (measured @ = 25°C, 1.5Vin , full load after warm up unless otherwise stated)
ta
Series
EMC Compliance
Condition
Standard / Criterion
Information technology equipment - Radio disturbance
characteristics - Limits and methods of measurement
without external components
with external components
EN55022, Class A
EN55022, Class B
Information technology equipment - Immunity characteristics - Limits and methods of measurement
ESD Electrostatic discharge immunity test
EN55024, 2010
IEC61000-4-2, Criteria A
IEC61000-4-3, Criteria A
IEC61000-4-4, Criteria A
IEC61000-4-5, Criteria A
IEC61000-4-6, Criteria A
IEC61000-4-8, Criteria A
Air 8kV and Contact 4kV
Radiated, radio-frequency, electromagnetic field immunity test
Fast Transient and Burst Immunity
3 V/m
0.5kV
Surge Immunity
0.5kV
Immunity to conducted disturbances, induced by radio-frequency fields
Power Magnetic Field Immunity
3V
50Hz/ 1A/m
EMC Filtering Suggestions according to EN55022 Class B
L1
R-78S
+Vout
GND
+Vin
GND
C1
C1
L1
2.2µF 16V MLCC
1µH Choke
DIMENSION and PHYSICAL CHARACTERISTICS
Parameter
Type
Case
Potting
PCB
Value
non-conductive black plastic, (UL94 V-0)
epoxy, (UL94 V-0)
Material
FR4, (UL94 V-0)
Package Dimension (LxWxH)
Package Weight
11.6 x 8.5 x 10.4mm
2g typ.
Dimension Drawing (mm)
embossed logo
11.6
8.5
R-78S Series
R-78S Series
Marking
0.70
1 2 3 4
Recommended Footprint Details
Pin Connections
1.00 Ø +0.15/-0
2.0
7.62
Pin #
Single
1
2
3
4
+Vin
GND
+Vout
CTRL
Top View
Bottom View
Tolerance: xx.x= 0.5mm
xx.xx= 0.25mm
Pin width:
0.1mm
2.54
I-4
REV.: 0/2017
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R-78S
DC/DC Converter
Specifications (measured @ = 25°C, 1.5Vin , full load after warm up unless otherwise stated)
ta
Series
INSTALLATION AND APPLICATION
Standard Application Circuit
R-78S
Vout
CTRL
Vin
GND
Single
Cell
Battery
3.3V
Application
N.C.
Power-Save Application
Vcc
R-78S
GND
CTRL
R
R
1
1.5V
5µA
WAKE
SLEEP
µP
WLAN
C
2
Vcc
3.3V
2.9V
watchdog
wake-up
Active
(600µW)
Sleep Mode
(20µW)
Active
(600µW)
System
Power
PACKAGING INFORMATION
Parameter
Packaging Dimension (LxWxH)
Type
tube
Value
520.0 x 11.2 x 18.2mm
42pcs
Packaging Quantity
Storage Temperature Range
Storage Humidity
-55°C to +125°C
5% to 95% RH
non-condensing
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.
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REV.: 0/2017
I-5
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