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MFG:FUJ
Part Number: MB3782
MFG: FUJ
Description: The FUJITSU MB3782 is a PWM-type switching regulator controller, designed with open-collector output f...
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MB3782
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DataSheet
General Description
MB3782 General Description
The FUJITSU MB3782 is a PWM-type switching regulator controller, designed with open-collector output for connection to external drive transistors and coils, providing a selection of three types of output voltage: stepup, step-down or inverting (inverting output is available on one circuit only).
The MB3782 features identical oscillator output waveforms to enable completely synchronous operation and prevent the occurrence of low-frequency beat between channels.
Also, the MB3782 features low power dissipation (2.1 mA typ) and a built-in standby mode (10 A), making possible the configuration of a wide variety of high-efficiency, stable power supplies, even with the use of battery power. The MB3782 is an ideal power supply for high-performance portable devices such as video camcorders and cameras.
MB3782 Maximum Ratings
| Parameter | Symbol | Condition | Rating | Unit | |
| Power supply voltage | VCC | - | 20 | V | |
| Error amp input voltage | VIN | - | 0.3 to 10 | V | |
| Dead time control input voltage | Vdt | - | 0.3 to 2.8 | V | |
| Control input voltage | VCTL | 0.3 to 20 | V | ||
| Collector output voltage | IOUT | 20 | V | ||
| Collector output current | IOUT | - | 75 | mA | |
| Allowable loss | PD*1 | Ta+25°C | EIAJ | 740*2 | mW |
| JEDEC | 1110 | ||||
| Operating temperature | TOP | - | 30 to 85 | °C | |
| Storage temperature | Tstg | - | 55 to 125 | °C | |
version should be derated by 11.1 mW/°C.
*2: When mounted on a 4 cm-square dual-sided epoxy board.
Note: Permanent device damage may occur if the above Absolute Maximum Ratings are exceeded. Functional
operation should be restricted to the conditions as detailed in the operational sections of this data sheet.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
MB3782 Features
• Wide voltage range (3.6 to 18 V)
• Low power dissipation (operating mode: 2.1 A (typ), standby mode: 10 mA (max)
• Wide range of oscillator frequencies, high-frequency capability (1 to 500 kHz)
• On-chip timer-latch type short detection circuit
• On-chip undervoltage lockout circuit
• On-chip 2.50 V reference voltage circuit (1.25 V output available at RT pin)
• Dead time adjustment over full duty cycle range
• On-chip standby mode (power on/off function)
• Low power dissipation (operating mode: 2.1 A (typ), standby mode: 10 mA (max)
• Wide range of oscillator frequencies, high-frequency capability (1 to 500 kHz)
• On-chip timer-latch type short detection circuit
• On-chip undervoltage lockout circuit
• On-chip 2.50 V reference voltage circuit (1.25 V output available at RT pin)
• Dead time adjustment over full duty cycle range
• On-chip standby mode (power on/off function)
MB3782 Connection Diagram
MB3782
PDF/DataSheet Download
- Datasheet: MB3782
- File Size: 254959 KB
- Manufacturer: FUJITSU [Fujitsu Media Devices Limited]
- Click here to Download
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