DC-DC Boost-Buck Converter, 18V-40V to 24V

DC-DC Boost-Buck Converter, 18V-40V to 24V

DC-DC boost-buck converter is step up and step down converter with wide input voltage range of 18V to 40V, output voltage 24V, moisture-proof and anti-shock protection, high efficiency up to 97.6%.

SKU: CCHN-DCDC-183624

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Delivery date: 6-25 days

Overview

Cost-saving mini DC-DC boost-buck converter is adopted synchronous rectification technology, non-isolated between input and output, with short circuit, overload, over temperature protections.

Features

Wide input voltage range: 18V to 40V.
Brand-new, die-cast aluminum shell and high quality design, maximum transfer efficiency of 97%.
This non-isolated power module comes with waterproof lever of IP67, moisture-proof & anti-shock protection.
Auto-recovery when device is back to normal operating.
Built-in full protection against over/under voltage input, over-current, overload, over-temperature and short circuit.
Industry grade DC 18V-40V to 24V boost-buck converter, widely used in automotive, electricity, surveillance systems, railway signals, instruments, solar generate electricity, display screen of bus and taxi, car audio device, security systems, hospital equipment, telecommunications etc.

Specifications

Model	CCHNWG18-40S2420	CCHNWG18-40S2430
Absolute Maximum Ratings
Operating Ambient Temperature	-40~50℃
Shell Ambient Temperature	-40~80℃
Storage Temperature	-55~100℃
Operating Humidity	5~95% (Non-condensing)
Atmospheric Pressure	62-106Kpa
Altitude	4000m
Cooling Way	Natural Cooling
Input Characteristics
Input Voltage	18-40V (Typ. 24/36V)
Max. Input Voltage	45V (Continuous)
Undervoltage Shutdown	16.5-17.0V (Automatic Recovery)	16.5-17.3V (Automatic Recovery)
Undervoltage Recovery	17.5-18.5V (Automatic Recovery)	17.8-18.3V (Automatic Recovery)
Max. Input Current	27.6A (Vin=18V; Iout=20A)	42.3A (Vin=18V; Iout=30A)
No Load Current	130mA (Vin=24V)	150mA (Vin=24V)
Positive Electrode Cable	12 AWG (If the wire length is greater than 50cm, it is recommended to use a thicker wire diameter.)	10 AWG (If the wire length is greater than 50cm, it is recommended to use a thicker wire diameter.)
Negative Electrode Cable
Enable Pin Cable	N/A
Fuse	40A (Input positive has built-in fuse)	60A (Input positive has built-in fuse)
Output Characteristics
Efficiency	97.4% (Vin=24V; Iout=20A)	97.6% (Vin=24V; Iout=30A)
Output Voltage	23.8-24.4V (Vin=24V; Iout =20A)	23.8-24.4V (Vin=24V; Iout =30A)
Regulator Accuracy	±5%
Voltage Regulation	±3%
Load Regulation	±3%
Overvoltage Protection	45.5-47.0V
Output Current	0-20A	0-30A
Overcurrent Protection	21-24A (Vin=24V)	30-33A (Vin=24V)
External Capacitance	μF (Don' t Need)
Output Ripple and Noise	260mVp-p (Vin=18-40V; Iout=20A, Oscilloscope Bandwidth: 20 MHz)	450mVp-p (Vin=18-40V; Iout=30A, Oscilloscope Bandwidth: 20 MHz)
Output Voltage Rise Time	100mS	450mS
Boot Delay Time	150mS	450mS
Out Voltage Overshoot	5% (Vin=24V, 50%-75% Load Step)
Over Temperature Protection	85℃ (Shell)
Short Circuit Protection	Yes (Long-term (4h) Short Circuit is Not Damaged, Hiccup Mode)
Positive Electrode Cable	14 AWG (If the wire length is greater than 50cm, it is recommended to use a thicker wire diameter.)	12 AWG (If the wire length is greater than 50cm, it is recommended to use a thicker wire diameter.)
Negative Electrode Cable
Safety and EMC Features
Anti-electric Strength
Input to Output	N/A
Input to Shell	≥500V (Leakage Current ≤ 3.5mA, 1min, No Breakdown, No Arcing)
Output to Shell
Insulation Resistance
Input to Output	≥50MΩ (Test Voltage=500V)
Input to Shell
Output to Shell
Other Characteristics
Weight	About 290g	About 550g
Package	White Box
MTBF	≥200000H
Switching Frequency	150±10kHz

DC-DC Converter Model Selection

Code	Model	Price	Input Voltage Range	Output Voltage	Output Current	Output Power	Efficiency	Size	Download
1	CCHNWG18-40S2420	$78.46	18-40V DC	24V DC	20 Amps	480 Watts	97.4%	747432mm
2	CCHNWG18-40S2425	$103.07	18-40V DC	24V DC	25 Amps	600 Watts	97%	1008039mm	Contact Us
3	CCHNWG18-40S2430	$112.30	18-40V DC	24V DC	30 Amps	720 Watts	97.6%	1008039mm

Note: The DC-DC boost converter models are all here, check the parameter carefully from the table and select the right converter power supply when place the order.

Tips: What is a DC-DC Buck-Boost Converter?

A DC-DC buck-boost converter is an electronic device that regulates voltage by either stepping it up (boost) or stepping it down (buck), depending on the input voltage level. It allows a stable output voltage to be maintained even when the input voltage fluctuates above or below the desired output. This makes it useful in applications like battery-powered systems, where the voltage may vary but a constant voltage is needed for the load.