Reduce battery consumption DC DC Converters Output short-circuit protection Charging function Isolated
DC DC converters
On-board DC/DC converter
1. Overview
TDC-320-12IG Series of 1000W Series DC/DC converter can be installed in electric cars to supply 12V low-voltage DC power to be used for low-voltage equipment. The output terminal can connect a backup 12V battery and DC/DC converter can manage the charging of the backup battery automatically. The casing is fully sealed, water-proof, automotive level temperature resistance and vibration resist.
Connection diagram as illustrated below. The high voltage DC input of the DC/DC converter connects directly to the positive and negative pole of the battery pack and the DC output connects to the 12V backup battery, then export to all the 12V electrical appliances.
| Protection Point |
Input Voltage (V DC) | 200V±20V |
. Basic Function
2.1 It can convert the high voltage DC to 12V low voltage DC
2.2 The charging of 12V backup battery can be controllable
2.3 Indicate the working status, fault code etc through DC/DC panel by LED
2.4 Protection function such as input low-voltage protection, input reverse connection protection, DC/DC over-temperature etc.,.
2.5 Fully sealed, water-proof, no fans, natural convection air-cooling
3. Technical Parameter
3.1 Input
3.1.1 Input voltage
The input currents under different input voltages (See table below). Allowed voltage range is 280V~380V
Input Voltage (V) | Input Current IN(A) |
280 | IN≤4 |
320 | IN≤3.5 |
380 | IN≤3 |
3.1.2 Input low-voltage protection
3.2 Output Spec
Item | Rated Value | Error Limitation |
DC output voltage-Max | 13.6V | ±0.1V |
DC output current-Max | 70A | ±1A |
DC output power-Max | 1000W | / |
Efficiency | ≥89% | / |
3.3 Usage environment
Item | Applicable Environment | Remark |
Operating Temperature | -30~60 °C |
|
Storage Temperature | -45~90°C |
|
Operation relative humidity | 5%~95% | No condensation |
3.4 Protection grade
Standard | Grade |
GB4208-2008 | IP66 |
3.5 Impulse Starting Current: Less or equal to 5A
3.6 Electrical Insulation
3.6.1 Voltage-withstand Performance
| Wire Core | Protection Requirement |
AC Input | 2.5 | Cover orange corrugated pipe |
DC Output | 16 | Cover black corrugated pipe |
12V ENABLE | 0.75 | Cover black corrugated pipe |
Terminals to earth (shell) and the dielectric strength of circuits without electrical connection to each other should withstand the test voltages. The testing voltage is AC voltage 50~60Hz. Test between terminals should not be a corona, ionization, arcing or breakdown phenomenon.
Input/Shell | 1500VAC | 1min | Leakage Current≤10mA |
Input/Output | 1500VAC | 1min | Leakage Current≤10mA |
Output/Shell | 500VAC | 1min | Leakage Current≤10mA |
3.6.2 Insulation Resistance
The insulation resistance between live circuit and ground (shell) is not less than 20 under the environmental temperature (23±2) °C and relative humidity 80% ~ 90%.
3.6.3 Contact Current
Contact Current | AC Current mA | DC Current mA |
Limit | / | 2 |
3.7 Noise
Noise | Condition |
≤55dB | Distance 1.5m, A weighted noise |
3.8 Grounding resistance
3.8.1 The grounding resistance is not more than 0.1.
3.8.2 Grounding wires must be yellow/green double color.
3.9 EMC Properties
EMC accords with the article 11.3 of the electromagnetic environment test requirements in GB/T 18487.3-2001
3.10 Protection Features
a) Input Under-voltage Protection;
b) Output Over-voltage Protection;
c) Output Over-current Limitation;
d) Output Short-circuit Protection;
e) Input Reverse Connect Protection;
f) Battery Temperature Protection
3.11 Wire-harness
Excellent Isolated with charging function DC DC converters
