Discharging Module for Supercapacitor Evaluation
Instruction Manual

Doc No. U23J010050
NIPPON CHEMI-CON CORPORATIONPart Number: N3JXJPrecautions
This product is an experimental charging module exclusively for the supercapacitor module " MDKA150S8R3PE6111A ".
Please refrain from using this product for the following applications:
Use of the module for applications other than our "MDKA150S8R3PE6111A", massproduction,or installation in equipment that may cause injury or death.
Use of the product in a manner not described in the instruction manual may result in damage or ignition.
To avoid personal injury, fire, or other accidents due to malfunction of this product, design safety by the personusing the product.
We assume no responsibility for any malfunction or damage that may occur while using this product.
Specifications of this product and the contents of this instruction manual are subject to change without notice.

OutlineThis is an experimental charging module exclusively for MDKA150S8R3PE6111A.
The circuit configuration is a non-isolated DCDC converter.
Standard specification output voltage is 12.125V and output current is 15A.
Although the output voltage is fixed, it is selectable from 3V to 25V with mounting options.

1. Dimention and Terminal Descriptions

Table 1. Electrical Mounting Points

Specifications

Terminal Ref

Name

J1

Vin (+)

J2Vin (-)

J3

Vout (+) (Brass - Tin plating)

J4

Vout (-)

J5

On/Off

M4 female screw

2Pin Connector

Table 2. Mechanical Mounting Points

ItemDescription
Holes at four corners φ3.2mm

Part

PCB FR-4 (t=1.6mm)
Side A: Within silk area
Side B: Pattern removal area

Recommended Mounting Method

Tightening TorqueFigure 1. Dimention

Screw fastening
Max. 0.5 Nm* Note that the PCB surface may be distorted by themounting of the board.

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2. Specifications
Table 3. Specifications
ItemInput

Standard

Environment

Combinable supercapacitor Number of Series

Voltage Range

6 to 30V

Min: 3 series (3s), rated voltage 7.5V

Start-up Voltage

6.5V

Max: 12 series (12s), rated voltage 30V

Current

25A max

Efficiency

96% max

Voltage Output
OutputMounting OP* Rated voltage of a single cell is assumed to be 2.5V.
Multiple parallel connections possible

3 to 25V

12.125V

Voltage Accuracy±0.1V+2%

Current

15A max (time limited)* 1Ripple Voltage

p-p 150mV max *2

Storage Temperature Range-40 to 85℃

Operating Temperature Range-40 to 70℃

Cooling Method

Natural air coolingSize

65 x 90 x 13mm

(input voltage > output voltage),

Weight50g

it may exceed specifications.

Shape*1. Allowable operation time at maximum output
current is 1 minute.
*2. When the power supply is in boost operation

3. Control Block Diagram

130A USEine erseconnection
protection

3out

4out

SW Circuit

e erseconnection
protection
5Control Unitn2

in

4. Sequence ChartVinVoutnBuc
BoostSwitchingn2/5Boost Mode imit

5. Electrical Connection Methods

J1: Vin(+)

Supercapacitor
ModuleJ3: Vout(+)

Load

J5: On/Off

J2: Vin(-)

J4: Vout(-)

Figure 2. Connection

Input Vin
Terminal Ref: Connect an supercapacitor to 1 & 2.
When installing, ma e sure that the supercapacitor side is at 0 V before connecting.
Imputting other than the supercapacitor is the responsibility of the customer.
Output Vout
Terminal Ref: Connect DC power supply to 3& 4.
Cautions: If the energy in the supercapacitor is exhausted, no output will be produced.
When there is a possibility of reverse current (regeneration), such as in motor loads, etc.,
make sure that the reverse voltage does not exceed the output rating of 25V.
On/Off Connector
Terminal Ref: Connect the supplied harness to 5 and connect it to the fault detection terminalof the supercapacitor module.
* This product will not start if the harness is not connected.
* Refer to "7. unctional Description" for the startup method without the dedicated harness.

6. How to Change Output oltage Mounting Option
By replacing R18 and R21 at the following mounting points,
the output voltage can be set. The table below shows
the values obtained by adding the two resistors.
Any changes from the default settings should be made by thecustomer.
Table 4.

utput Settings

RefR18+R21Figure 3. Output Voltage Setting
Mounting Location

Output Settings

14k

3.0V

16k

3.3V

30k

5.0V

86k

12.0V

110k

15.0V

182k

24.0V

Mounted Parts: SMD resistors, 1608 (IEC 0603)

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7. Functional Description
Reverse voltage protection to input section
If a reverse voltage is applied to Vin, the fuse inside the circuit will blow to protect the device.
In this case, Vin(+) of the input section becomes electrically open.
Reverse voltage protection to Output section
Vout(+) is prevented from reverse current flow by the SW element of the power supply circuit.
This function prevents current from returning from the load side to the supercapacitor side.
Overcurrent Protection
This product has built-in overcurrent protection, but does not have an automatic shut-off function.
Even in the case of a pseudo short circuit, the limiting current continues to flow continuously.
Overvoltage Protection
The overvoltage function of this product is only the B function of the power supply. It does not provide double
protection.
Overheat Protection
This product does not have an overheat protection function. In the development and evaluation of the product,
operation was verified under the following conditions:
1) Continuous operation at room temperature of 25°C, natural air cooling, and no airflow
2) Continuous (1 minute) operation at 70°C, inside a thermostatic chamber, forced convection, maximum
load
On/Off Function
With a voltage input of 6.5 V or more to Vin, the output is enabled when there is a short between connectors Pin 1and 2 of J5.
When the supplied harness is connected, the signal state with the supercapacitor module is normal-short.
If an abnormality is detected on the charging module side, it becomes Abnormal- pen and the output is stopped(SW stop of power supply).
To switchn

ff by another method, follow the procedure below:

1) Connect a jumper resistor to R15, which is unmounted at shipping.
2) Turn on/off the pin-to-pin connection of J5 with a switch, etc. In this case, add a chattering remover.

Figure 4. On/Off Circuit4/58. Operating Wa eform

Vin:7 25V, Vout:10V, Iout:5A1614E100
8cienc1264out
826048828608405101520

Vin Vperating conditions
Input: DC7 25V
utput: Electronic load CC5A
Environmental temperature: 25°C

Graph 1. RepresentativeWaveforms

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2530%

Vout V10