DC-DC CONVERTER
TDD25 SERIES
23 ~ 25W
MODEL LIST
MODEL NO.
TDD25 - 03S2 18~60 VDC 23 WATTS +3.3 VDC 7000 mA 78% TB
TDD25 - 05S2
TDD25 - 12S2
TDD25 - 15S2
TDD25 - 03S3 35~75 VDC
TDD25 - 05S3
TDD25 - 12S3
TDD25 - 15S3
TDD25 - 12D2 18~60 VDC
TDD25 - 15D2 18~60 VDC
TDD25 - 12D3
TDD25 - 15D3
INPUT
VOLTAGE
Single Output Models
18~60 VDC 25 WATTS
18~60 VDC 24 WATTS
18~60 VDC 25 WATTS
35~75 VDC 25 WATTS
35~75 VDC 24 WATTS
35~75 VDC 25 WATTS
Dual Output Models
35~75 VDC 25 WATTS
35~75 VDC 25 WATTS
OUTPUT
WATTAGE
WATTAGE
03 : 3.3V OUT
05
12 : 12V OUT
15 : 15V OUT
23 WATTS
25 WATTS
25 WATTS
TDD25 – 03 S 2
2: 18~36V IN
3: 35~75V IN
: 5V OUT
S : SINGLE OUTPUT
D : DUAL OUTPUT
OUTPUT
VOLTAGE
+ 5 VDC 5000 mA 84% TB
+ 12 VDC 2000 mA 84% TB
+ 15 VDC 1700 mA 84% TB
+3.3 VDC 7000 mA 78% TB
+ 5 VDC 5000 mA 84% TB
+ 12 VDC 2000 mA 84% TB
+ 15 VDC 1700 mA 84% TB
± 12 VDC ± 1000 mA 84% TB
± 15 VDC ± 850 mA 84% TB
± 12 VDC ± 1000 mA 84% TB
± 15 VDC ± 850 mA 84% TB
OUTPUT
CURRENT
EFF.
(MIN.)
CASE
FEATURES
* LOW COST
* 2:1 AND 3:1 WIDE INPUT RANGE
* I/O ISOLATION
* INPUT Pi FILTER
* SHORT CIRCUIT PROTECTION
* HIGH PERFORMANCE
* 2 YEARS WARRANTY
DESCRIPTION
THE TDD25 SERIES ARE 25 WATTS SINGLE & DUAL OUTPUT DC/DC CONVERTER, 2:1 AND 3:1 WIDE
INPUT RANGE, I/O ISOLATION, GOOD EFFICIENCY WITH EXCELLENT LINE / LOAD REGULATION WITH SHORT
CIRCUIT P ROTECT FE ATUR E S. I T M A KE S TD D2 5 SU I TABLE TO POWER COMMERCIAL & INDUSTRIAL TYPES
OF ELECTRONIC CIRCUITS AT VERY LOW COST. ALL TDD25 MODELS ARE PACKAGED IN 3” x2” x 0.47”
BLACK COATED METAL CASE WITH NON-CONDUCTIVE PLA S T IC B A SE PL ATE CO N FI G UR AT I O N, A N D PC B
MOUNTABLE DIRECTLY.
CHINFA ELECTRONICS IND., CO. LTD.
ISO 9001 Certified
www.chinfa.com
sales@chinfa.com
DC-DC CONVERTER
TDD25 SERIES
23 ~ 25W
SPECIFICATION
All Specifications Typical At Nominal Line, Full Load, 25 Unless Otherwise Noticed℃
GENERAL SPECIFICATION
* Switching frequency: .........................
* Isolation voltage: ..............................
* Isolation resistance: ..........................
* Operating ambient temperature: .........
* Storage temperature: ........................
* Max. Case temperature: .....................
* M.T.B.F.: ..........................................
* Cooling: ...........................................
* Transient recovery time: ....................
* Temperature coefficient: ....................
* Dimension: ......................................
INPUT SPECIFICATIONS
* Input voltage range / frequency: ........
* Input filter: .......................................
OUTPUT SPECIFICATIONS
* Output voltage accuracy: ...................
* Minimum load: ..................................
* Line regulation: ................................
* Load regulation: ...............................
* Ripple & noise: .................................
* Efficiency: ........................................
* Voltage trim range: ...........................
* Derating: .........................................
* Case material: ..................................
CONTROL AND PROTECTION
* Remote on/off: .................................
* Output short circuit: ..........................
>200KHz
1,500VDC
100M Ω(min.)
-25 to +71℃
-40 to +100℃
100℃
233,000Hrs at @ GF40, according to MIL-HDBK-217F
Free air convection
500µS, 25% load step change
±0.02% / ℃
76.2 x 50.8 x 12mm
18 ~ 60VDC for 24V
35 ~ 75VDC for 48V
Pi filter
±2% at Vo_nom
±0% at Vo_nom for single output models
±20% at Vo_nom for dual output models
±1% at Vo_nom
±2% (NL ~ FL) at Vo_nom for single output models
±5% (20% ~ FL) at Vo_nom for dual output models
Vout x ±1% mVp-p (max.)
Up to 84%, see model list
±10% at Vo_nom
±5% for 3.3_Vout
51℃
Metal
ON : Open or 8 ~ 10VDC
OFF : -0.3 ~ 2VDC
Continuous
CHINFA ELECTRONICS IND., CO. LTD.
ISO 9001 Certified
www.chinfa.com
sales@chinfa.com
TDD25 SERIES
MECHANISM & PIN CONFIGURATION
mm [inch]
DC-DC CONVERTER
23 ~ 25W
PHYSICAL CHARACTERISTICS
12.00 [0.47]
5.00 [0.20]
15.24 [0.60]
10.16 [0.40]
20.32 [0.80]
5.08 [0.20]
76.20 [3.00]
DIA 1.00 [0.04]
63.50 [2.50]6.35 [0.25]
6
10.16 [0.40]
2
3
5
BOTTOM VIEW
7
10.16 [0.40]
8
10.16 [0.40]
9
10.16 [0.40]
10
CASE SIZE
CASE MATERIAL Metal
WEIGHT 105 g
5.08 [0.20]
76.2 x 50.8 x 12mm
3 x 2 x 0.47inches
PIN ASSIGMENT
PIN NO. 2 3 5 6 7 8 9 10
SINGLE Vi- Vi+ ON/OFF N.C.
DUAL Vi- Vi+ ON/OFF Vo-
N.C.
N.C.
Vo- Vo+ Trim
com Vo+ Trim
Derating:
[TABLE 1]
100
NATURAL
CONVECTION
COOLING
Power out [%]
0
40 50
100-25
Ambient Temperture [℃]
CHINFA ELECTRONICS IND., CO. LTD.
ISO 9001 Certified
www.chinfa.com
sales@chinfa.com
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