The Fifth Generation, Ultra Small Size, Isolated DC-DC Converter
1.5Watt BTA Series
BTA series is a thin, high efficiency, low noise isolated DC-DC converter.
Contrived to adopt new circuit to achieve miniaturization. Circuit construction is high-efficiency and simple.
Adjustable output voltage and remote ON/OFF control has been added as a new function.
<Features>
-Adjustable Output Voltage
-Remote ON/OFF Control
-Dual Power Supply usable as Single Power Supply
-Isolation Voltage AC500V
-Built-in over-Current Protection
-Built-in Low Input Voltage Protection
-Built-in Over Input Current Protection element
-No electrolytic Capacitor, No Tantalum Capacitor
-MTTF 2,000,000 Hrs
-Metallic Shield Cover
-Halogen-Free PCB Used
-Between Primary and Secondary
capacitance approx. 60 to 140pF
-Operating Temp. Range -40°C to 85°C
(Temp. Derating required)
-RoHS Compliance
combination
<Model, Rating>
Model
Input V
Vdc
Output V
Vdc
Output I
mA
Table 1
Line Reg. Load Reg.
Noise
mV(max.) mV(max.) mVpp(typ.)
Efficiency
%(typ.)
3.3
0 to 400
BTA05-03S40□
20
40
40
5
0 to 300
BTA05-05S30□
4.5 to 9
12(15)
0 to 125 (100)
40
100
BTA05-12S12□
30
±12(±15)
0 to 60 (50)
80
600
BTA05-12W06□
3.3
0 to 400
BTA12-03S40□
20
40
40
5
0 to 300
BTA12-05S30□
9 to 18
12(15)
0 to 125 (100)
40
100
BTA12-12S12□
30
±12(±15)
0 to 60 (50)
80
600
BTA12-12W06□
3.3
0 to 400
BTA24-03S40□
20
40
40
5
0 to 300
BTA24-05S30□
18 to 36
12(15)
0 to 125 (100)
40
100
BTA24-12S12□
30
±12(±15)
0 to 60 (50)
80
600
BTA24-12W06□
3.3
0 to 400
BTA48-03S40□
20
40
40
5
0 to 300
BTA48-05S30□
36 to 76
12(15)
0 to 125 (100)
40
100
BTA48-12S12□
30
±12(±15)
0 to 60 (50)
80
600
BTA48-12W06□
Note1 : Specify the type in the
□
column of the model name. D:DIP type, S:SMD type
Ex.) DIP type: BTA05-03S40D, SMD type: BTA05-03S40S
Note2 : The Output voltage inside () is when it is short between Vadj and –Vout.
Note3 : The output current inside () is when adjusted to the max. output voltage.
71
77
80
79
73
78
82
81
72
77
81
79
70
75
80
79
1
DC-DC Converter
BDD20081203
The Fifth Generation, Ultra Small Size, Isolated DC-DC Converter
1.5Watt BTA Series
<Specification>
Input Voltage Range
Rating Output Voltage
Adjustable Output Voltage
Range
Line Regulation
Load Regulation
Temp. Regulation
Ripple/Noise
Efficiency
Over Current Protection
Circuit
Over Voltage Protection
Circuit
Low Input Voltage
Protection
Over Input Current
Protection
Remote ON/OFF
Stand by Current
Isolation Voltage
Isolation resistance
Primary-Secondary
capacitance
Operating Temp. Range
Storage Temp. Range
Humidity Range
Cooling Condition
Vibration
Shock
Weight
Table2
Refer to Table 1
3.3V±3%, 5V±3%, 12V±3%, ±12V±5% (Vadj pin at open)
3.15 to 3.6V (For 3.3V), 4.75 to 6.0V (For 5V), 11.4 to 15V (For 12V), ±11.4 to ±15V (For 12V)
Please refer to Table1 (rating Output, for the regulation of Input Voltage Range of Table1)
Refer to table1 (Rating Input/Output Voltage, for the regulation of load 0 to 100% (±Output is
when load is at balance))
80mV max. (For 3.3V, 5V), 200mV max. (For 12V), 300mV max. (For ±12V)
(Input/Output rating, For operating temp. -40°C to 50°C)
Refer to Table 1 (Rating Input/Output, At room temp, 20MHz bandwidth)
70% to 82% typ. (Rating Input/Output, At room temp., Refer to table 1)
Operates at 105% or more rating load current, auto recovery type. Avoid long time short-circuit
Condition.
None
Available (Refer to p.11)
Built-in fuse in the input (refer to p.12)
Between 2pin (ON/OFF) and -3pin (−Vin) : Output goes OFF at open, Output goes ON when in
short. (Refer to p.9)
0.6 to 2.4mA typ. (Depend on the model)
Input−Output，Input−Case, Output−Case AC500V 1min.
Input−Output，Input−Case, Output−Case Over 50MΩ at DC500V.
Approx. 60 to 140pF (Depend on the model)
Operating Temp. -40°C to 85°C (Need temp. derating from 50°C)
Storage Temp.-40°C to 85°C
Humidity range 95%R.H. max. (Max. wet bulb 38°C, non-condensing)
Air Convention (Set in a place where good convection is ensured)
10 to 55Hz All amplitude 1.52mmp-p (2 hours in each orthogonal axes), Scanning time 15min.
Acceleration 100G (3directions, 3times each, 18times in total), Persistent time 6ms
3.2g typ.
DIP type W=16.6 L=16.8 H=8.4 typ. (mm) (For detail dimensions, refer to the outline on p.7)
Outline
SMD type W=16.6 L=19.8 H=8.5 typ.(mm) (For detail dimensions, refer to the outline on p.7)
NOTE : Unless condition is specified, above specification is regulated as rating value.
2
DC-DC Converter
BDD20081203
The Fifth Generation, Ultra Small Size, Isolated DC-DC Converter
1.5Watt BTA Series
1- Application Range
This datasheet applies to the isolated DC/DC converter, BTA series.
2- Model/Rating
Model
BTA05-03S40D
BTA05-03S40S
BTA05-05S30D
BTA05-05S30S
BTA05-12S12D
BTA05-12S12S
BTA05-12W06D
BTA05-12W06S
BTA12-03S40D
BTA12-03S40S
BTA12-05S30D
BTA12-05S30S
BTA12-12S12D
BTA12-12S12S
BTA12-12W06D
BTA12-12W06S
BTA24-03S40D
BTA24-03S40S
BTA24-05S30D
BTA24-05S30S
BTA24-12S12D
BTA24-12S12S
BTA24-12W06D
BTA24-12W06S
BTA48-03S40D
BTA48-03S40S
BTA48-05S30D
BTA48-05S30S
BTA48-12S12D
BTA48-12S12S
BTA48-12W06D
BTA48-12W06S
Rating Input
Voltage
Rating Output
3.3V, 400mA
5.0V, 300mA
DC5V
12V, 125mA
±12V, each60mA
3.3V, 400mA
5.0V, 300mA
DC12V
12V, 125mA
±12V, each60mA
3.3V, 400mA
5.0V, 300mA
DC24V
12V, 125mA
±12V, each60mA
3.3V, 400mA
5.0V, 300mA
DC48V
12V, 125mA
±12V, each60mA
Package
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
DIP
SMD
3- Environmental Condition
3-1 Temp. range
When Operating : 40°C to 85°C (Derating required from 50°C)
When Storage :
−40°C
to 85°C
3-2 Humidity Range
When Operating : 95%R.H. max. (Max. wet-bulb temp. 38°C, non-condensing)
When storage : 95%R.H. max. (Max. wet-bulb temp. 38°C, non-condensing)
3
DC-DC Converter
BDD20081203
The Fifth Generation, Ultra Small Size, Isolated DC-DC Converter
1.5Watt BTA Series
4-Specification
4-1 Input Condition, Output Characteristics
When condition is not mentioned in this data sheet, input is rating input, output is rating output,
ambient temp. is 25°C±5°C.
Input
Voltage
(V)
Output
Voltage
*2
*2
(V)
3.3±3%
5.0±3%
4.5 to 9
12±3%
15±3%
±12±5%
±15±5%
3.3±3%
5.0±3%
9 to 18
12±3%
15±3%
±12±5%
±15±5%
3.3±3%
5.0±3%
18 to 36
12±3%
15±3%
±12±5%
±15±5%
3.3±3%
5.0±3%
36 to 76
12±3%
15±3%
±12±5%
Output
Current
(mA)
0 to 400
0 to 300
0 to 125
0 to 100
0 to 60 × 2
0 to 50 × 2
0 to 400
0 to 300
0 to 125
0 to 100
0 to 60 × 2
0 to 50 × 2
0 to 400
0 to 300
0 to 125
0 to 100
0 to 60 × 2
0 to 50 × 2
0 to 400
0 to 300
0 to 125
0 to 100
0 to 60 × 2
Max. Output Voltage
Output
Constancy.
Efficiency
*5
Ripple/Noise
*6
(%)typ.
Input(m Load(m Temp.
(mVp-p)typ./ max.
*4
V)
V)
(mV)
20
20
40
40
80
80
20
20
40
40
80
80
20
20
40
40
80
80
20
20
40
40
80
40
40
100
100
600
600
40
40
100
100
600
600
40
40
100
100
600
600
40
40
100
100
600
80
80
200
200
300
300
80
80
200
200
300
300
80
80
200
200
300
300
80
80
200
200
300
40 / 120
40 / 120
30 / 120
30 / 120
30 / 120
30 / 120
40 / 120
40 / 120
30 / 120
30 / 120
30 / 120
30 / 120
40 / 120
40 / 120
30 / 120
30 / 120
30 / 120
30 / 120
40 / 120
40 / 120
30 / 120
30 / 120
30 / 120
30 / 120
71
77
80
80
79
79
73
78
82
82
81
81
72
77
81
81
79
79
70
75
80
80
79
79
Model
*1
BTA05-03S40□
BTA05-05S30□
BTA05-12S12□
BTA05-12W06□
BTA12-03S40□
BTA12-05S30□
BTA12-12S12□
BTA12-12W06□
BTA24-03S40□
BTA24-05S30□
BTA24-12S12□
BTA24-12W06□
BTA48-03S40□
BTA48-05S30□
BTA48-12S12□
BTA48-12W06□
*1
*2
*3
*4
*5
*6
±15±5% 0 to 50 × 2
80
600
300
Specify the package in
□column.
D: DIP type(Flow)S: SMD type(Reflow)
Output Voltage includes line regulation, load
regulation(Balance Load), temp. regulation.
2 output type is when 2 output type has same current.
For temp. regulation –40 to 50°C.
Bandwidth 20MHz
When Rating Input Voltage, max. Output Current.
4
DC-DC Converter
BDD20081203
The Fifth Generation, Ultra Small Size, Isolated DC-DC Converter
1.5Watt BTA Series
4-2 Capacity of External Capacitor
This product has limit to the capacity of external capacitor. Please refer to the below table.
Output External Capacitor
Capacity
+output side
-output side
*1
0 to 100µF
—
*1
0 to 100µF
—
*1
0 to 47µF
—
*2
*3
0 to 22µF
0 to 22µF
Model
BTAXX-03SXXX
BTAXX-05SXXX
BTAXX-12SXXX
BTAXX-12WXXX
*1
*2
*3
Sum of C2 and C3 in standard connecting circuit in section6,1
Sum of C2 and C4 in standard connecting circuit in section 6,2
Sum of C3 and C5 in standard connecting circuit in section 6,2
Air Convection
100
90
80
Load Rate(%)
70
60
50
40
30
20
10
0
-40 -30 -20 -10
0 10 20 30 40 50 60 70 80 90
Ambient Temp.(℃)
4-3 Temp. Derating
5
DC-DC Converter
BDD20081203
嵌入式系统
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