BOB12 series

Isolated DC-DC Converters
BOB12 Series -- 12 Watt
BOTHHAND USA
Features
Wide 2 : 1 Input Voltage Range(9~18V,18~36V,36~75V)
Remote On/Off
Input / Output Isolation Voltage: 1.5K Vdc
Extended Operating Temperature Range: -40°C to +85°C
Output Short Circuit Protection:
Description
Continuous & Auto Recovery
Over Voltage Protection: Clamp Mode
High Efficiency up to 88%
Shielded Metal Case with Insulated Baseplate
Lead Free Design, RoHS Compliant
24pin DIP Package with Industry-Standard Footprint
Customer Design Available
The BOB12 Series are isolated 12W DC/DC converters.
Designed with highly efficiency, allow the operating
temperature range of these units to be -40°C to +85°C in
a 24 pin DIP package with industry-standard footprint.
Further features include wide 2 : 1 input voltage range,
remote on/off control, short-circuit protection and over
voltage 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.
Output
Voltage
(Vdc)
Min. Load
Full. Load
No Load
Full Load
BOB12-12S9
2.5
0
3500
47
960
80
55100
BOB12-12S0
3.3
0
3500
56
882
82
28000
BOB12-12S1
5.1
0
2400
68
1275
84
19620
12
0
1000
68
1220
86
3530
15
0
800
64
1220
86
2300
BOB12-12D2
±12
0
±500
98
1220
86
1660
BOB12-12D3
±15
0
±400
65
1220
86
1100
BOB12-24S9
2.5
0
3500
22
468
82
59800
BOB12-24S0
3.3
0
3500
24
609
83
36580
BOB12-24S1
5.1
0
2400
31
630
85
18000
12
0
1000
25
602
87
3730
15
0
800
23
595
88
2420
BOB12-24D2
±12
0
±500
26
595
88
1880
BOB12-24D3
±15
0
±400
25
595
88
1100
BOB12-48S9
2.5
0
3500
21
237
81
56090
BOB12-48S0
3.3
0
3500
16
305
83
40550
BOB12-48S1
5.1
0
2400
14
315
85
20000
12
0
1000
13
301
87
3960
15
0
800
10
298
88
2750
BOB12-48D2
±12
0
±500
298
88
1990
BOB12-48D3
±15
0
±400
13
13
301
87
1100
Model
Number
Input Voltage
Range
9~18V
BOB12-12S2 Nominal:12Vdc
BOB12-12S3
18~36V
BOB12-24S2 Nominal:24Vdc
BOB12-24S3
36~75V
BOB12-48S2 Nominal:48Vdc
BOB12-48S3
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Output Current (mA)
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Input Current (mA)
Rev:20100713W1
(1)
Eff . Capacitive
max.
(%) Load,
(2)
(uF)
Page 1 of
Isolated DC-DC Converters
BOB12 Series -- 12 Watt
BOTHHAND USA
Input Specifications
Input Voltage
12V nominal input
9-18Vdc
24V nominal input
18-36Vdc
48V nominal input
36-75Vdc
Input filter
Pi Type
12V input
25Vdc
Input surge voltage
24V input
50Vdc
(100ms max.)
48V input
100Vdc
Input reflected ripple current
Nominal Vin and full load
Start up time
Nominal Vin and constant resistive load
Remote ON/OFF
100mAp-p typ.
75ms typ.
Open or 3.5V<Vr<12V
Converter: ON
Short
Converter: OFF
(3)
or 0V<Vr<0.7V
Sourcing current of remote control pin
Nominal Vin
<0.2 mA
Idle input current (at Remote OFF state)
Nominal Vin
<6 mA
Environmental Specifications
Operating ambient temperature
-40°C to +85°C (with derating)
Maximum case temperature
+100°C
Storage temperature range
-55°C to +105°C
Relative humidity
5% to 95% RH
Temperature coefficient
±0.02% / °C max.
Output Specifications
Output power
Voltage accuracy
12 Watts max.
Full load and nominal Vin
±1.2%
Minimum load
Line regulation
See table
LL to HL at full load
25% load to full load
Load Regulation
Balanced load
±0.5%
Single
±1%
Dual
±1%
Unbalanced load 25% to 100% full load
Ripple and Noise
±5%
20MHz bandwidth
85mVp-p max.
3.3Vout models
3.9V
Over voltage protection
5Vout models
6.2V
(Zener Diode Clamp)
12Vout models
15V
15Vout models
18V
Capacitive load
Over load protection
See table
% of full load at nominal input
Short circuit protection
Continuous, automatic recovery
Transient response settling time
50% load step change
Transient response over shoot
di/dt=0.8A/µs
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150% typ.
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350µs typ.
≤ ±5% of Vo
Rev:20100713W1
Page 2 of
Isolated DC-DC Converters
BOB12 Series -- 12 Watt
BOTHHAND USA
General Specifications
Efficiency
Nominal input
Isolation voltage
Input to output
Isolation resistance
See table
1500Vdc
9
500Vdc
10 Ohms min.
Isolation capacitance
260pF typ.
Switching frequency
400kHz typ.
6
Reliability, calculated MTBF
2.11 × 10 Hrs
Physical Specifications
Case material
Nickel-coated copper
Base material
Non-conductive black plastic
Potting material
Silicon rubber (UL94V-0)
1.25 × 0.80 × 0.40 Inch
Dimensions
(31.75 × 20.32 × 10.16 mm)
18g (0.62oz) typ.
Weight
BOB12 Series
(4)
Output Power (%)
Power Derating Curve
BOB12-48S1
BOB12-48S1
Input voltage vs. Efficiency
Output Current vs. Efficiency
90
85
80
75
70
65
60
55
50
Efficiency (%)
Efficiency (%)
Ambient Temp.TA (℃
℃)
Input voltage (V)
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2.4
75
2.16
68
1.96
64
1.68
60
1.44
56
1.2
52
0.96
48
0.72
44
0.48
40
0.24
36
90
85
80
75
70
65
60
55
50
Output Current (A)
Rev:20100713W1
Page 3 of
Isolated DC-DC Converters
BOB12 Series -- 12 Watt
BOTHHAND USA
BOB12-48S1
BOB12-48S1
Transient Response at 50%~100% Max Load
Loop Gain & Phase at Vi=48V,Full Load
Note
1. Typical value, tested at nominal input and full load.
2. For each output.
3. Short to -Vin (Pin 2,3).
4. Based on BOB12-48S1.
Mechanical Dimensions
Pin
1
2
3
9
11
14
16
22
23
Pin Assignment
Single
Dual
Remote On/Off Remote On/Off
-Vin
-Vin
-Vin
-Vin
No function
Common
No function
-Vout
+Vout
+Vout
-Vout
Common
+Vin
+Vin
+Vin
+Vin
Unit: mm [inch]
Tolerance:±0.5[0.02]
Specifications subject to change without notice.
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Rev:20100713W1
Page 4 of