BHU SERIES
7∼15W DC/DC CONVERTERS
Single Output & Dual Outputs
■ Pin Outs & Dimensions
<Top View>
35.56
±0.3
4-M3 Through
(±0.5mm)
10.16
±0.3
15.24
±0.3
15.24
±0.3
15.24
±0.3
40
±0.3
43
H8.5×W50×L55 (mm)
49
±0.3
55
34
50
Pin Outs
Thermal Radiation Plate
4.9
15
■ Features
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Low Profile 8.5mm
Internal Input Filtering
Input-Output Isolation
High Efficiency 77∼88％
Wide Input Voltage Range
High Reliability
6 Sided Metal Shielding
Remote ON/OFF Control
Adjustable Output Volt. ±5％
Output Over Voltage Protection
115∼140％ Operation
Operating Ambient Temperature
−40℃∼＋85℃
Max. Case Temperature
＋105℃
Conforming to RoHS Directive
Not built-in aluminum and
tantalum electrolytic capacitor
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薄型 8.5mm
入力フィルタ内蔵
入出力間絶縁
高効率 77∼88％
広範囲な入力電圧
高信頼性
６面メタルシールド
ﾘﾓ½ﾄON/OFF½ﾝﾄﾛ½ﾙ
可変出力電圧 ±5％
出力過電圧保護回路内蔵
115∼140％ 動½
動½周囲温度
−40℃∼＋85℃
最大ケース温度
＋105℃
RoHS指令対応
アルミ電解コンデンサ及び
タンタルコンデンサ不½用
V. ADJ
φ1
■ Holes on PCB
(Top View)
4−No Printed Circuit Areas
35.56
0.5
(4)
8.5
Name Plate
Single Output
＋Vdc in
0 Vdc in
ON/OFF Control
＋Vdc out
0 Vdc out
No Connection
Dual Outputs
＋Vdc in
0 Vdc in
ON/OFF Control
＋Vdc out
Common
−Vdc out
8
■ Option Heat Sink
4-φ3.3
15.24
15.24
40
±0.3
34
40
50
49
±0.3
6-φ1.3
10.16
Out Line
43
49
15.24
46.5
55
12
3
＊Option Heat Sink Model : A4-3080
Option Holes
(4-φ3.5)
■ General Characteristics
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55
Input Voltage,Range
Output Voltage,Current
Output Voltage,Range
Efficiency
Line Regulation
Load Regulation
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Reflected Input Ripple,Noise
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Output Ripple
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Output Noise
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Short Circuit Protection
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Over Voltage Protection
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Remote ON/OFF Control
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Temperature Coefficient
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Operating Ambient Temp.
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Max. Plate Temperature
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Storage Temperature
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Isolation Voltage
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Isolation Impedance
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Weight
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Humidity
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Shock
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Vibration
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Surface Structure
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Soldering Conditions
(at Ta:25℃, Full Load, Nominal Vin)
DC 5, 12, 24, 48V (See Table 1)
See Table 1
See Table 1, ±5％ Adjustable
See Table 1
±0.3％ max. (at Vin Range)
Single : ±0.5％ max. (0∼100％ Load)
Dual : ±3％ max. (10∼100％ Load)
(3％ Vin)Vp-p max.
40mVp-p max.
(48V Vout : 100mVp-p max.)
100mVp-p max.
(48V Vout : 200mVp-p max.)
Built-in, Auto-restart (See Fig 2)
115∼140％ Output Voltage
ON : Short or 0∼0.8V
OFF : Open or 2∼10V
(Between pin ② ∼ ③ )
0.02％／℃ max.
−40℃∼＋85℃ (See Fig 1)
−30℃∼＋85℃ (5V Vin)
＋105℃
−40℃∼＋115℃
AC1500V one minute
(Input−Output−Case)
100MΩ min. (at DC1000V)
(Input−Output−Case)
Main Body : 60g max.
Heat Sink : 40g max.
20∼95％ RH
2
490m/s (11msec 3directions)
10∼55Hz 98m/s
2
(30minutes 3directions)
6 Sided Aluminium Case
260℃, for 15 seconds max.
360℃, for 5 seconds max.
Single : 1,000,000H
Dual : 700,000H
(Ta:25℃, 80％Load, Nominal Vin)
5 years
■ Selection Guide
Model Number
B H U 5 −3.3 S
2A
BHU 5− 5S
2A
B H U 5 − 6 S 1.8 A
B H U 5 −1 2 S
1A
B H U 5 −1 5 S 0.8 A
B H U 5 −2 4 S 0.5 A
B H U 5 −2 8 S 0.4 A
BHU 5− 5D
1A
B H U 5 −1 2 D 0.5 A
B H U 5 −1 5 D 0.4 A
B H U 1 2 −3.3 S 2.4 A
B H U 1 2 − 5 S 2.4 A
B H U 1 2 − 6 S 2.2 A
B H U 1 2 −1 2 S 1.3 A
B H U 1 2 −1 5 S
1A
B H U 1 2 −2 4 S 0.65 A
B H U 1 2 −2 8 S 0.5 A
B H U 1 2 −4 8 S 0.3 A
B H U 1 2 − 5 D 1.2 A
B H U 1 2 −1 2 D 0.65 A
B H U 1 2 −1 5 D 0.5 A
B H U 2 4 −3.3 S 2.4 A
B H U 2 4 − 5 S 2.4 A
B H U 2 4 − 6 S 2.2 A
B H U 2 4 −1 2 S 1.3 A
B H U 2 4 −1 5 S
1A
B H U 2 4 −2 4 S 0.65 A
B H U 2 4 −2 8 S 0.5 A
B H U 2 4 −4 8 S 0.3 A
B H U 2 4 − 5 D 1.2 A
B H U 2 4 −1 2 D 0.65 A
B H U 2 4 −1 5 D 0.5 A
B H U 4 8 −3.3 S 2.4 A
B H U 4 8 − 5 S 2.4 A
B H U 4 8 − 6 S 2.2 A
B H U 4 8 −1 2 S 1.3 A
B H U 4 8 −1 5 S
1A
B H U 4 8 −2 4 S 0.65 A
B H U 4 8 −2 8 S 0.5 A
B H U 4 8 − 5 D 1.2 A
B H U 4 8 −1 2 D 0.65 A
B H U 4 8 −1 5 D 0.5 A
Input Volt.
(Range)
(V. DC)
Output
Voltage
(V. DC)
3.3
5
6
12
15
24
28
± 5
±12
±15
3.3
5
6
12
15
24
28
48
± 5
±12
±15
3.3
5
6
12
15
24
28
48
± 5
±12
±15
3.3
5
6
12
15
24
28
± 5
±12
±15
Output
Current
(A)
2
2
1.8
1
0.8
0.5
0.4
±1
±0.5
±0.4
2.4
2.4
2.2
1.3
1
0.65
0.5
0.3
±1.2
±0.65
±0.5
2.4
2.4
2.2
1.3
1
0.65
0.5
0.3
±1.2
±0.65
±0.5
2.4
2.4
2.2
1.3
1
0.65
0.5
±1.2
±0.65
±0.5
Table 1
Efficiency
(Typical)
(％)
83
82
82
84
83
83
83
77
81
81
83
85
85
85
85
85
85
85
78
83
83
84
86
86
86
86
86
86
85
78
83
83
83
86
86
88
88
86
86
80
85
85
5
(4.5∼9)
12
(8∼18)
24
(16∼36)
Soldering DIP
Soldering iron
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MTBF
48
(32∼76)
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Warranty
※ 上記仕様以外にも対応可½ですので お問い合わせ下さい。
Please consult with us about other specification.
BHU SERIES
■ Block Diagram
Single Output
1
□
＋Vin
4
□
Voltage Detector
Rectifier Circuit
Drive Circuit
Over Voltage
Detector
DATA SHEET
Fig 4 Efficiency vs. Output Current
100
90
BHU5−3.3S2A
Efficiency (％)
Voltage Regulator
＋Vout
80
70
60
50
40
0
10
20
30
40
50
60
70
80
90
100
Vin=4.5V
Vin=5V (Nominal Voltage)
Vin=9V
Control
0 Vin
2
□
3
□
Over Current
Photo Coupler
Photo Coupler
5
□
0 Vout
6
□
NC
ON/OFF Control
Output Current (％)
Dual Outputs
1
□
4
□
Voltage Detector
Drive Circuit
Over Voltage
Detector
Fig 5 Efficiency vs. Output Current
100
90
Voltage Regulator
＋Vin
BHU24−15S1A
＋Vout
Efficiency (％)
Control
5
□
COM
6
□
ーVout
80
70
60
50
40
0
10
20
30
40
50
60
70
80
90
100
Vin=16V
Vin=24V (Nominal Voltage)
Vin=36V
2
□
0 Vin
3
□
ON/OFF Control
Over Current
Photo Coupler
Photo Coupler
■ Characteristic Curves
Fig 1 Derating Curve
140
100
90
Output Current (％)
Fig 6 Efficiency vs. Output Current
Max Case Temp. 105℃
BHU24−48S0.3A
Output Current (％)
120
100
80
60
40
20
No Heat Sink
Efficiency (％)
80
70
60
50
40
0
10
20
30
40
50
60
70
80
90
100
Vin=16V
Vin=24V (Nominal Voltage)
Vin=36V
Additional Option Heat Sink
0
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 110
Ambient Temperature (℃)
Output Current (％)
Fig 2 Short Circuit Operating Area
140
Fig 7 Efficiency vs. Output Current
100
90
BHU48−5S2.4A
Output Voltage (％)
120
100
80
60
40
20
0
60
80
100
120
140
160
180
200
220
Efficiency (％)
80
70
60
50
40
0
10
20
Vin=72V
30
40
50
60
70
80
90
100
Vin=32V
Vin=48V (Nominal Voltage)
Output Current (％)
Output Current (％)
Fig 3 Temperature Characteristic on Case Surface
70
Ta=25℃, Full Load, Vin=Nominal
BHU12−15D0.5A
No Heat Sink
60
50
40
30
20
10
0
0
10
Additional Option Heat Sink
ΔT＝20.4℃
ΔT＝25.5℃
Fig 8 Efficiency vs. Output Current
100
90
BHU24−15D0.5A
Temperature (℃)
Efficiency (％)
80
70
60
50
40
Vin=36V
0
10
20
30
40
50
60
70
80
90
100
Vin=16V
Vin=24V (Nominal Voltage)
20
30
40
50
60
70
Operating Time (minute)
Output Current (％)
Automotive Electronics
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