XL4016 5-36V to 1.3-32V DC-DC Digital Voltage Regulator Buck Step Down Power Supply Module Over Temperature Protection

9A step-down module XL4016 (with/without constant current)

Module parameters:

Module properties: non-isolated step-down constant current, constant voltage module (CC CV) charging module

Scope of application: high-power LED constant current drive, lithium battery charging (including ferroelectric), 4V, 6V, 12V, 14V, 24V battery charging, Ni-Cd Ni-MH battery (battery pack) charging, solar panels, wind turbines

Input voltage: 7-32V (without constant current 5-32V) now the input voltage is 40V

Output voltage: (1) Continuously adjustable (0.8-28V) output voltage (1.2-35V)

(2) Fixed output (optional between 0.8-28V)

Output current: 12A (output current 8-9A) (if the temperature of the power tube exceeds 65 degrees, please add a fan for heat dissipation, 24V to 12V within 6A, generally no fan can be added in an open environment)

Constant current range: 0.2-12A (adjustable) (without constant current without this function) (output current 8-9A)

Turning light current: constant current value* (0.1), turning light current is linked with constant current value, for example, if the constant current value is 3A, the turning light current is set to 0.1 times the constant current (0.1*3A=0.3A). When the current value is adjusted to 2A, the turn lamp current is 0.1 times the constant current (0.1*2A=0.2A).

The second version is fixed 0.1 times (the actual turn light current is an approximate value, not very), which is used to indicate whether it is fully charged or not.

Dropout: 1V

Output power: The power is about 300W, please add a fan if the temperature of the power tube exceeds 65 degrees.

Conversion efficiency: about 95% (the higher the output voltage, the higher the efficiency)

Working frequency: 300KHZ (frequency 180KHZ)

Output ripple: 20M bandwidth (for reference only)

Input 24V output 12V 5A about 50mV ripple (no noise)

Working temperature: Industrial grade (-40 to +85 ) (Please pay attention to the temperature of the power tube in actual use, if the temperature is too high, please strengthen the heat dissipation)

No-load current: typical 20mA (24V to 12V)

Load regulation: ±1% (constant voltage)

Voltage regulation rate: ±1%

Constant current accuracy and temperature: In the actual test, the temperature on the module changes from 25 degrees to 60 degrees, and the constant current value changes less than 5% (the constant current value is 5A)

Dynamic response speed: 5% 200uS

Potentiometer adjustment direction: clockwise (increase), counterclockwise (decrease) The potentiometer close to the input is for voltage adjustment (CV), and the potentiometer close to the output is for current adjustment (CC)

Indicator light: two-color indicator light, the indicator light is red during charging, the indicator light is red when charging is completed (without the load), and the indicator light without constant current is red.

Output short circuit protection: yes, constant current (currently set constant current value)

Input reverse polarity protection: none,

Output Against Backflow: None.

Wiring method: terminal block

Charging the battery How to use:

1. Determine the float voltage and charging current of the battery you need to charge, and the input voltage of the module;

2. Adjust the constant voltage potentiometer to adjust the output voltage to about 5V.

3. Use the 10A current block of the multimeter to measure the output short-circuit current, and adjust the constant current potentiometer to make the output current reach the predetermined charging current value;

4. Adjust the constant voltage potentiometer to make the output voltage reach the floating voltage;

5. Connect the battery and try charging.

(Steps 1, 2, 3, and 4 connect the power supply to the module input, and do not connect the battery to the output without load.)

LED constant current driver Usage:

1. Determine the working current and working voltage you need to drive the LED;

2. Adjust the constant voltage potentiometer to adjust the output voltage to about 5V.

3. Use the 10A current block of the multimeter to measure the output short-circuit current, and adjust the constant current potentiometer to make the output current reach the predetermined LED working current;

4. Adjust the constant voltage potentiometer to make the output voltage reach the LED working voltage;

5. Connect the LED and test the machine.

(Steps 1, 2, 3, and 4 connect the power supply to the module input, and do not connect the LED light to the output without load.)

typical application:

Adjustable power supply (12A power is large enough), high-power LED driver, LED display driver, lead battery charging, lithium battery charging, vehicle power supply, vehicle notebook power supply (buck), regulated power supply, low-voltage system power supply, (such as children The toy car uses 12V battery to step down to 6V), 24V to 12V 12A \12V to 5V 12A \24V to 5V 12A \24V to 19V20V, etc., the application range is very wide.

1. The fixed turn light current is 0.1 times the constant current value (used to identify whether the battery is fully charged when charging);

2. A dedicated reference IC and a high-precision sampling resistor are used to make the constant current more stable (the temperature drift is less than 5% when the constant current is 5A from 20 degrees to 60 degrees). Especially suitable for LED driver

3. The output current is large, the output current can reach 12A, which meets most needs.

4.4 high frequency capacitors, effectively reduce output ripple and improve working stability

5. Double heat sink design, MOS tube Schottky diode independent heat sink, good heat dissipation, no influence on each other

6. Use large-size iron-silicon-aluminum magnetic rings at all costs to improve work efficiency, and use pure copper double wires to reduce heat and increase efficiency.

7. 3296 multi-turn potentiometer, high voltage and current adjustment precision, good stability.

8. Dedicated current sampling resistor The current sampling accuracy is high, the stability is good, and the temperature drift is small. LED .

9. Two-color indicator light, the working status is clear at a glance. Charge.

10. Both voltage and current can be adjusted, and the effect of being an adjustable power supply is good. 12A has large current and sufficient power.

Module introduction:

The module adopts XL4016 switching voltage regulator chip, cooperates with MBR10200 double rectifier, and adds a load protection circuit to the power to protect the load. The maximum instantaneous output current can reach 8A, and a fan is required to dissipate heat. Long-term work is recommended within 5A

8ADigital parameters

Product description:

Voltage regulation mode: PWM modulation

Input voltage: DC5-36V

Output voltage: DC1.3-32V

Maximum current 8A (5A recommended for a long time)

Maximum power: 200W

Conversion efficiency: 94%

Switching frequency: 180kHz

Other functions: real-time current display