BYB100 48

PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
Features
Wide 2 : 1 Input Voltage Range (36~75V)
Remote On/Off
Input / Output Isolation Voltage: 1.5kVDC
Operating Temperature Range: -40°C to +85°C(with derating)
Output Short Circuit Protection:
Hiccup & Auto Recovery
Over Voltage Protection: Clamp Mode
Over Temperature Protection
Lead Free Design, RoHS Compliant
Adjustable Output Voltage
Customer Design Available
Meet Safety Standard : IEC / EN60950-1
Description
The BYB100 Series are isolated 100W DC/DC
converters. Designed with highly efficiency, allow the
operating temperature range of these units to be -40°C
to +85°C (with derating) in a five-sided shielded metal
case. Further features include wide 2 : 1 input voltage
range, remote on/off control, short-circuit protection,
over voltage protection and over temperature protection.
Applications
These converters are well suitable for battery operated
equipment, measurement equipment, telecom, wireless
network, Industry control system, everywhere where
isolated, tightly regulated voltages and compact size are
required.
Technical Specification All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
Model
Number
Input Voltage
Range
BYB100-48S2
BYB100-48S5
BYB100-48S4
36~75V
Nominal:48V
BYB100-48S6
E-mail: [email protected]
Output
Output Current (A)
Voltage
Min. Load (1) Full. Load
(V)
Input Current (mA)
No Load
Full Load
(2)
Eff . Capacitive
(%) Load, max.
(uF)
12
0
8.4
95
2367
92
10000
24
0
4.2
58
2395
91
3300
28
0
3.6
69
2395
91
2000
48
0
2.1
57
2367
92
1000
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Rev:20150720A
Page 1 of 8
PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
Input Specifications
Input voltage
48V nominal Vin
36-75V
Input filter
Pi type
Input surge voltage (100ms max.)
48V nominal Vin
Input reflected ripple current
Nominal Vin and full load
Start up time
Nominal Vin and constant resistive load
Remote ON/OFF
100V
600mAp-p typ.
68ms typ.
Open or 3.5VVr12V
Converter: ON
Short
Converter: OFF
(3)
or 0VVr0.7V
Sourcing current of remote control pin
Nominal Vin
0.2 mA
Idle input current (at Remote OFF state)
Nominal Vin
20 mA
Environmental Specifications
Operating ambient temperature
-40°C to +85°C (with derating)
Maximum case temperature
+105°C
Storage temperature range
-40°C to +105°C
Relative humidity
95% RH max.
Temperature coefficient
±0.02% / °C max.
Output Specifications
Output power
Voltage accuracy
100 Watts max.
Full load and nominal Vin
±1%
Minimum load
0mA
Line regulation
LL to HL at full load
±1%
Load Regulation
25% load to full load
±1%
Ripple and Noise (20MHz Bandwidth)
12Vout
(Measured with a 2.2uF/50V MLCC)
24Vout and 28Vout
(Measured with a 10uF/50V MLCC)
48Vout
(Measured with a 2.2uF/100V MLCC)
Over voltage protection
(Zener Diode Clamp)
100mVp-p max.
200mVp-p max.
300mVp-p max.
12Vout
15V
24Vout
33V
28Vout
36V
48Vout
58V
Capacitive load
Over load protection
See table
% of full load at nominal input
110% min.
Thermal shutdown
110°C typ.
Short circuit protection
Hiccup, automatic recovery
Transient response settling time
50% load step change
Transient response over shoot
di/dt=0.8A/µs
E-mail: [email protected]
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480µs typ.
≤ ±5% of Vo
Rev:20150720A
Page 2 of 8
PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
General Specifications
Efficiency
Nominal input
Isolation voltage
Input to output
Isolation resistance
See table
1500VDC
9
500VDC
10 Ohms min.
Isolation capacitance
1200pF typ.
Switching frequency (Fixed)
Pulse width modulation (PWM)
300kHz typ.
5
Reliability, calculated MTBF
4.5 × 10 Hrs
Physical Specifications
Case material
Aluminum
Potting material
Silicon rubber (UL94V-0)
2.40 × 2.28 × 0.5 Inch
Dimensions
(61.0 × 57.9 × 12.7 mm)
Weight
97g (3.42oz) (typical)
Soldering temperature
260/10Sec (maximum)
Lead-free wave soldering
BYB100-48S2
Power Derating Curve without Heatsink
Output Power (%)
Ambient Temp.TA ()
BYB100-48S2
BYB100-48S2
Output Current vs. Efficiency
Input voltage vs. Efficiency
Input voltage (V)
E-mail: [email protected]
Output Current (A)
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Rev:20150720A
Page 3 of 8
PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
BYB100-48S2
BYB100-48S2
Transient Response at 50%~100% Max. Load
Loop Gain & Phase at Vin=48V, Full Load
Note
1. Io below this value will not damage these converters, however, they may not meet all listed specifications.
2. Typical value, tested at nominal input and full load.
3. Short to -Vin (Pin 2).
4. Specifications subject to change without notice.
Mechanical Dimensions
Pin Assignment
Pin
Single
1
-Vin
Case
2
Remote
On/Off
3
4
+Vin
5
-Vout
6
-Sense
7
Trim
8
+Sense
9
+Vout
Pin 5&9 diameter: 2.0 [0.08]
Other pins diameter: 1.0 [0.04]
Unit: mm [inch]
Tolerance: 0.5 [0.02]
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Rev:20150720A
Page 4 of 8
PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
Remote Sense Application circuit
The Remote Sense function is used to compensate for the voltage drop incurred when the load is located physically
far away from the DC/DC converter providing its power. The Remote Sense pins are connected as close to the load as
possible. The DC/DC converter’s regulation specification is maintained across the points where the Remote Sense wires
are connected at the load. This will remove the effect of the voltage drop caused by the resistance of the wires used to
conduct the power from the DC/DC converter to the load. This is represented by RCL1 and RCL2. With the use of Remote
Sense, the effects of RCL1 and RCL2 are eliminated.
If the Remote Sense function is not used, the +Sense has to be connected to +Vout and the –Sense has to be
connected to –Vout as close to the DC/DC converter as possible.
+Vout
RCL1
+Sense
+Vin
Load
-Vin
-Sense
-Vout
RCL1 and RCL2 are line resisters
RCL2
Test Configurations
All specifications are typical at nominal input, full load and 25°C unless otherwise stated.
A
A
DC
Power Supply
DC/DC
converter
V
V
Load
DC Power Supply: Current meter (A): Accuracy ! Voltage meter (V): Accuracy +( 0 .0 3 %
r d g +4 d ig it s ) .
Load: A t f u l l l o a d .
Wires: The resistance of the wires must be small.
1. Input voltage range: Narrow input voltage range10% wide input voltage range (2:1 and 4:1
EX: Narrow input voltage range10%
5V nominal input 4.5~5.5V
12V nominal input 10.8~13.2V
24V nominal input 21.6~26.4V
E-mail: [email protected]
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Rev:20150720A
Page 5 of 8
PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
Wide input voltage range 2:1
5V nominal input 12V nominal input 24V nominal input 48V nominal input 4.5~9V
9~18V
18~36V
36~75V
Wide input voltage range 4:1 (W)
24V nominal input 9~36V
48V nominal input 18~75V
2. Input power :
Pin = Vin x Iin
VinInput voltage
IinInput current
Pout = Vout x Iout
VoutOutput voltage
IoutOutput current
3. Output power :
4. Efficiency :
Efficiency =
Pout
Pin
x100%
Pout: Output power
Pin: Input power
5. Voltage accuracy:
x100%
Vout-Vout(nominal)
Vout
VoutOutput voltage
Vout(nominal)Nominal output voltage
6. Line regulation: (1) Wide input voltage range and regulated output voltage series.
Vout(LL)-Vout(HL)
Vout(LL)
x100%
LL: Low Line input voltage
HL: High Line input voltage
(2) Narrow input voltage range10%and unregulated output voltage series.
Line regulation=
Vout
Vin
Vout = Vout(+10%)-Vout(-10%) x100%
Vout
Vout(+10%)Output voltage at Vin = 1.1xVin(nominal)&full load
Vout(-10%)Output voltage at Vin = 0.9xVin(nominal)&full load
VoutOutput voltage at Vin = Vin(nominal)&full load
Vin = Vin(+10%)-Vin(-10%) x100%
Vin(nominal)
Vin(+10%)Input voltage = 1.1xVin(nominal)
Vin(-10%)Input voltage = 0.9xVin(nominal)
Vin(nominal)Nominal Input voltage
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Rev:20150720A
Page 6 of 8
PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
7. Load regulation :
Vout(FL)-Vout(NL) x100%
Vout(FL)
Vout(FL): Output voltage at full load
Vout(NL): Output voltage at 25% full load or 10% full load
8. Ripple and Noise: as shown below. The bandwidth is 0-20MHz.
Ripple&Noise
Noise
Ripple
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
converter
Co
Load
Oscilloscope
Copper strip
Co: 2.2uF
9. Temperature derating curve: The DC-DC converter will operate over a wider temperature range if less
power is drawn from the output and the device is already running. The temperature derating curve shows the
operating power-temperature range. As shown below.
Output Power (%)
33
Ambient Temp.TA ()
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Rev:20150720A
Page 7 of 8
PRELIMINARY
Isolated DC-DC Converters
BYB100 Series -- 100Watt
BOTHHAND USA
10. Switching frequency: The nominal operating frequency of the DC-DC converters.
11. Input to output isolation: The dielectric breakdown strength test between input and output circuits. This is
the isolation voltage the device is capable of withstanding for a specified time, usually 1 second or 1 minute.
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Rev:20150720A
Page 8 of 8
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