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MFG:1110 Package Cooled:FUJ
Part Number: MB3785A
MFG: 1110
Package Cooled: FUJ
Description: The MB3785A is a PWM-based 4-channel switching regulator controller featuring high-precision, high-fre...
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MB3785A
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DataSheet
General Description
MB3785A General Description
The MB3785A is a PWM-based 4-channel switching regulator controller featuring high-precision, high-frequency capabilities. All of the four channels of circuits allow their outputs to be set in three modes: step-down, step-up, and inverted. The third and fourth channels are suited for DC motor speed control.
The triangular-wave oscillation circuit accepts a ceramic resonator, in addition to the standard method of oscillation using an RC network.
MB3785A Maximum Ratings
(Ta = +25°C)
| Rating | Symbol | Conditions | Rating | Unit |
| Power supply voltage | VCC | - | 20 | V |
| Control input voltage | VICTL | - | 20 | V |
| Power dissipation | PD | Ta +25°C | 550* | mW |
| Operating ambient temperature |
TOP | - | 30 to 85 | °C |
| Storage temperature | Tstg | - | 55 to 125 | °C |
WARNING: 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.
MB3785A Features
• Wide range of operating power supply voltages: 4.5 V to 18 V
• Low current consumption: 6 mA [TYP] when operating10 A or less during standby
• Built-in high-precision reference voltage generator: 2.50 V±1%
• Oscillation circuit
- Capable of high-frequency oscillation: 100 kHz to 1 MHz
- Also accepts a ceramic resonator.
• Wide input range of error amplifier: 0.2 V to VCC1.8 V
• Built-in timer/latch-actuated short-circuiting detection circuit
• Low current consumption: 6 mA [TYP] when operating10 A or less during standby
• Built-in high-precision reference voltage generator: 2.50 V±1%
• Oscillation circuit
- Capable of high-frequency oscillation: 100 kHz to 1 MHz
- Also accepts a ceramic resonator.
• Wide input range of error amplifier: 0.2 V to VCC1.8 V
• Built-in timer/latch-actuated short-circuiting detection circuit
MB3785A Connection Diagram
MB3785A
PDF/DataSheet Download
- Datasheet: MB3785A
- File Size: 300915 KB
- Manufacturer: FUJITSU [Fujitsu Media Devices Limited]
- Click here to Download
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