CHA2 Series Spec 150617

PRELIMINARY
BOTHHAND USA
Isolated DC-DC Converters
CHA2 Series -- 2Watt
Features

7Pin SIL Package

Input / Output Isolation Voltage: 1K Vdc

High Efficiency

Lead Free Design, RoHS Compliant

Operating temperature: -40°C to +85°C
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
Input Voltage
Number
Range(V)
Output
Output
Voltage
Current (mA)
Input Current (mA)
(2)
Eff.
No Load
Full Load
(%)
Capacitive
Load, max.
(μ F)
(V)
Full Load
CHA2-05S1
5
400
45
506
79
330
CHA2-05S2
12
167
42
500
80
330
CHA2-05S3
4.5~5.5
15
134
35
494
81
330
CHA2-05D1
Nominal:5
±5
± 200
45
513
78
±220
CHA2-05D2
± 12
± 84
42
500
80
±100
CHA2-05D3
± 15
± 67
35
494
81
±100
CHA2-12S1
5
400
26
211
79
330
CHA2-12S2
12
167
25
208
80
330
CHA2-12S3
10.8~13.2
15
134
24
206
81
330
CHA2-12D1
Nominal:12
±5
± 200
26
214
78
±220
CHA2-12D2
± 12
± 84
25
208
80
±100
CHA2-12D3
± 15
± 67
24
208
80
±100
CHA2-24S1
5
400
8
105
79
330
CHA2-24S2
12
167
7
101
82
330
CHA2-24S3
21.6~26.4
15
134
7
102
82
330
CHA2-24D1
Nominal:24
±5
± 200
8
107
78
±220
CHA2-24D2
± 12
± 84
7
103
81
±100
CHA2-24D3
± 15
± 67
7
102
82
±100
E-mail:
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Rev:20150617A
Page 1
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8
(3)
PRELIMINARY
BOTHHAND USA
Isolated DC-DC Converters
CHA2 Series -- 2Watt
Input Specifications
Input voltage
5V nominal input
4.5~5.5V
12V nominal input
10.8~13.2V
24V nominal input
21.6~26.4V
Input filter
Capacitor
Environmental Specifications
Operating ambient temperature
-40°C to +85°C
Maximum case temperature
+95°C
Storage temperature range
-55°C to +125°C
Relative humidity
95% RH max.
Output Specifications
Output power
2 Watts max.
Voltage accuracy
Nominal Vin and full load
±5% max.
Voltage balance
Dual output
±1% max.
Minimum load
0.013A
Line regulation
For Vin charge of 1%
Load Regulation
10% load to full load
±1.5% max.
10% max.
15% max. (3.3&5Vout models)
Ripple and Noise (20MHz Bandwidth)
150mVp-p max.
Maximum capacitive load
See table
General Specifications
Efficiency
Nominal input and full load
Isolation voltage
Isolation resistance
See table
Input to output
1000Vdc (1 second)
1000 MΩ Min.
500VDC
Isolation capacitance
50pF typ.
Switching frequency
150kHz max.
6
Reliability, calculated MTBF
2×10 Hrs
Physical Specifications
Case material Plastic
Plastic
Potting material Epoxy
Epoxy (UL94 V-0)
0.76 × 0.24 × 0.39 Inch
Dimensions
(19.5 × 6.0 × 10.0 mm)
Weight
E-mail:
2.2 g typ.
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Rev:20150617A
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8
PRELIMINARY
BOTHHAND USA
Isolated DC-DC Converters
CHA2 Series -- 2Watt
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. For each output.
4. Specifications subject to change without notice.
Mechanical Dimensions
Single output
19.50
(0.76)
17.00
(0.67)
CHA2-05S1
Pb
0.50
(0.02)
2.54
(0.10)
8.50
(0.33)
Date Code
9.50 8.00
(0.37) (0.31)
6.00
(0.24)
5.00
(0.20)
Printed Face
3.05
(0.12)Min
12.70
(0.50)
0.50
(0.02)
0.25
(0.01)
1.25
(0.05)
Units: mm (inch)
Tolerance: .xx ±0.25( ±0.01)
Pin
1 KVdc - Single
1
+Vin
2
-Vin
3
No Pin
4
-Vo
5
No Pin
6
+Vo
7
No Pin
0.50
(0.02)
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Rev:20150617A
Page 3
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8
PRELIMINARY
BOTHHAND USA
Isolated DC-DC Converters
CHA2 Series -- 2Watt
Dual output
19.50
(0.76)
17.00
(0.67)
CHA2-05D1
Pb
0.50
(0.02)
2.54
(0.10)
8.50
(0.33)
Date Code
9.50 8.00
(0.37) (0.31)
6.00
(0.24)
5.00
(0.20)
0.50
(0.02)
0.25
(0.01)
1.25
(0.05)
1 KVdc - Dual
1
+Vin
2
-Vin
3
No Pin
4
-Vo
5
Common
6
+Vo
7
No Pin
Printed Face
3.05
(0.12)Min
12.70
(0.50)
Pin
Units: mm (inch)
Tolerance: .xx ±0.25( ±0.01)
0.50
(0.02)
Package Information
PS:
Unit: mm
L= 540 mm ; ONE TUBE = 25 PCS
E-mail:
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Rev:20150617A
Page 4
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PRELIMINARY
BOTHHAND USA
Isolated DC-DC Converters
CHA2 Series -- 2Watt
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: It offers a wide voltage and current range precisely.
◎Current meter (A): Accuracy 200μA ~ 200mA 4 ranges+(0.2% rdg + 2 digits)
2000mA ~ 20A
2 ranges+(0.3% rdg + 2 digits).
◎Voltage meter (V): Accuracy +(0.03% rdg + 4 digits).
◎Load: At full load.
◎Wires: The resistance of the wires must be small.
1. Input voltage range: Narrow input voltage range(±10%)、wide input voltage range
(2:1 and 4:1)。
EX: Narrow input voltage range(±10%)
5VDC nominal input 
4.5~5.5VDC
12VDC nominal input

10.8~13.2VDC
24VDC nominal input

21.6~26.4VDC
E-mail:
Wide input voltage range 2:1
5VDC nominal input

12VDC nominal input

24VDC nominal input

48VDC nominal input

4.5~9VDC
9~18VDC
18~36VDC
36~75VDC
Wide input voltage range 4:1 (W)
24VDC nominal input

48VDC nominal input 
9~36VDC
18~75VDC
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Rev:20150617A
Page 5
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PRELIMINARY
BOTHHAND USA
Isolated DC-DC Converters
CHA2 Series -- 2Watt
2. Input power :
Pin = Vin x Iin
Vin:Input voltage
Iin:Input current
3. Output power :
Pout = Vout x Iout
Vout:Output voltage
Iout:Output current
4. Efficiency :
Efficiency =
Pout x100%
Pin
Pout: Output power
Pin: Input power
5. Voltage accuracy:
│Vout-Vout(nominal)│ x100%
Vout
Vout:Output voltage
Vout(nominal):Nominal output voltage
6. Line regulation: (1) Wide input voltage range and regulated output voltage series.
│Vout(LL)-Vout(HL)│ x100%
Vout(LL)
LL: Low Line input voltage
HL: High Line input voltage
(2) Narrow input voltage range(±10%)and unregulated output voltage series.
│
│
Line regulation=
ΔVout
ΔVin
ΔVout = 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
Vout:Output voltage at Vin = Vin(nominal)&full load
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Rev:20150617A
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PRELIMINARY
BOTHHAND USA
ΔVin =
Isolated DC-DC Converters
CHA2 Series -- 2Watt
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
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
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Rev:20150617A
Page 7
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PRELIMINARY
BOTHHAND USA
Isolated DC-DC Converters
CHA2 Series -- 2Watt
Output Ripple&Noise measurement test circuit: as shown below.
Copper strip
DC/DC
converter
Co
Oscilloscope
Load
Copper strip
Co: usually 0.47uF.
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.
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.
E-mail:
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Rev:20150617A
Page 8
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