B3841, B3842, B3842AP Selling Leads, Datasheet
MFG:EPCOS Package Cooled:NEW D/C:2010+
B3841, B3842, B3842AP Datasheet download
Part Number: B3841
MFG: EPCOS
Package Cooled: NEW
D/C: 2010+
B3841, B3842, B3842AP
- Table of contents:
Info of B3841
Info of B3842
Info of B3842AP
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About B380
PDF/DataSheet Download
Datasheet: B380
File Size: 46239 KB
Manufacturer: DIODES [Diodes Incorporated]
Download : Click here to Download
About B3842
PDF/DataSheet Download
Datasheet: B3842
File Size: 444600 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About B380
PDF/DataSheet Download
Datasheet: B380
File Size: 46239 KB
Manufacturer: DIODES [Diodes Incorporated]
Download : Click here to Download
B3842 General Description
The Bay Linear B3842/43/44/45 are fixed frequency current-mode PWM controller. These devices are designed for Off-Line and DC-to-DC converter applications with minimum external components. The B3842 family Feature a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator, and a high current totempole output. Ideally suited for driving a power N-Channel MOSFET's. It is low when is on off stage. Protection circuitry includes built in under-voltage lockout and current limiting.
Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges. Typical UVLO thresholds of 16V (on) and 10V (off) on the B3842 and B3844 devices make them ideally suited to off line applications. These corresponding typical thresholds for the B3842 and B3845 devcies are 8.4V (on) and 7.6V (off). The B3842 and B3843 devcies can operate to duty cycles approaching 100%. A duty-Cycle range of 0 to 50% is obtained by the B3844 and B3845 by the addition of an internal toggle flip-flop, which blanks the output off every other clock cycle. It id available in 8 pin DIP and SOIC packages.
B3842 Maximum Ratings
| Parameter | Symbol | Value | Unit |
| Supply Voltage | VCC | 30 | V |
| Output Current | IO | ±1 | A |
| Analog Input (pin 2,3) | V(ANA) | -0.3 to 6.3 | V |
| Error Amp Output Sink Current | ISINK (E.A) | 10 | mA |
| Power Dissipation | PD | 1 | W |
| Storage Temperature Range | T | -65 to 150 | °C |
| Lead Temperature (Soldering 10 Sec.) | TL | 260 | °C |
B3842 Features
• Low Start-Up and Operating Current
• Maximum Duty Cycle
• Operating Frequency Up to 500KHz
• Under voltage Lockout with Hysteresis
• Available in 8 pin SOIC
• Similar to industry Standard UC3842
• Maximum Duty Cycle
• Operating Frequency Up to 500KHz
• Under voltage Lockout with Hysteresis
• Available in 8 pin SOIC
• Similar to industry Standard UC3842
B3842 Typical Application
• Switching Power Supply
• Monitor
• Monitor
B3842 Connection Diagram
| Devices | Package | Temp. |
| B384X(Z)M | SO-8 | 0 °C to 70 °C |
| B384X(Z)P | 8-DIP | 0 °C to 70 °C |
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