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Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage
VRRM VRWM VR
70
80
80
100
V
RMS Reverse Voltage
VR(RMS)
49
56
63
70
V
Average Rectified Output Current @ TT = 90
IO
3.0
A
Non-Repetitive Peak Forward Surge Current 8.3ms single half sine-wave superimposed on rated load (JEDEC Method)
IFSM
100
A
Forward Voltage @ IF = 3.0A @ TA = 25C @ TA = 100C
VFM
0.79 0.69
V
Peak Reverse Current @ TA = 25 at Rated DC Blocking Voltage @ TA = 100
IRM
0.25 20
mA
Typical Junction Capacitance (Note 2)
Cj
100
pF
Typical Thermal Resistance Junction to Terminal (Note 1)
RJT
10
/W
Operating Temperature Range
Tj
-55 to +125
Storage Temperature Range
TSTG
-55 to +150
B380 Features
Guard Ring Die Construction for Transient Protection Ideally Suited for Automatic Assembly Low Power Loss, High Efficiency Surge Overload Rating to 100A Peak For Use in Low Voltage, High Frequency Inverters, Free Wheeling, and Polarity Protection Application Plastic Material: UL Flammability Classification Rating 94V-0
B380 Connection Diagram
B3800 General Description
The Bay Linear B3800 series is monolithic control circuit containing the primary functions required for DC-to-DC converters. This device is design for low voltage applications incorporating a soft start function and sort circuit detection function. The device has a low minimum operating voltage of 1.8V and is ideal for the power supply of battery-operated electronic equipments.
This series was specially designed to be incorporated in Step-Down and voltage-inverting applications with a minimum number of external components.
The B3800 is offer in 8-pin DIP or Surface mount package.
B3800 Maximum Ratings
Parameter
Symbol
Value
Unit
Supply Voltage
VCC
16
V
Output source current
IO+
-50
mA
Output sink current
IO-
50
mA
Allowable dissipation
SOP-8, Ta+25°C SOP-8, Ta+25°C SSOP-8, Ta+25°C
570
mW
430
mW
580
mW
Operating temperature
Top
-30 to +85
°C
Storage temperature
Tstg
-55 to +125
°C
B3800 Features
• Wide operation from....... 1.8 to 15V • Low Standby Current........ 1 µA • Low Current Consumption... 5.5mA • high Speed Operation ...... 1MHz • Incorporates soft start circuit • Incorporates a stand-by function • Incorporate a times-latch short circuit detection circuit (SCP) • Totem-pole type output with adjustable on/off current (for NPN transistor) • The error amplifier gain is set inside the IC, so peripheral components are minimized. • Direct Replacement for MB3800
B3800 Typical Application
• Digital Camera • MP3 • Low Battery Operating Applications