CS3845A, CS3845B, CS3845D Selling Leads, Datasheet
MFG:CS Package Cooled:DIP8 D/C:08+/09+
CS3845A, CS3845B, CS3845D Datasheet download
Part Number: CS3845A
MFG: CS
Package Cooled: DIP8
D/C: 08+/09+
CS3845A, CS3845B, CS3845D
- Table of contents:
Info of CS3845A
Info of CS3845B
Info of CS3845D
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About CS30
PDF/DataSheet Download
Datasheet: CS30
File Size: 58566 KB
Manufacturer: IXYS [IXYS Corporation]
Download : Click here to Download
About CS3845B
PDF/DataSheet Download
Datasheet: CS3845B
File Size: 153439 KB
Manufacturer: CHERRY [Cherry Semiconductor Corporation]
Download : Click here to Download
About CS30
PDF/DataSheet Download
Datasheet: CS30
File Size: 58566 KB
Manufacturer: IXYS [IXYS Corporation]
Download : Click here to Download
CS3845B General Description
The CS3845B provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components.
The CS3845B incorporates a precision temperature-controlled oscillator to minimize variations in frequency. An internal toggle flip-flop, which blanks the output off every other clock cycle, ensures that the duty-cycle never exceeds 50%. The undervoltage lockout feature ensures that VREF is stabilized within specification before the output stage is enabled. The CS3845B has been optimized for lower start up current (500A max).
Other features include 1% trimmed band gap reference, pulse-by-pulse current limiting, and a high-current totem pole output for driving capacitive loads.
The CS3845B incorporates a precision temperature-controlled oscillator to minimize variations in frequency. An internal toggle flip-flop, which blanks the output off every other clock cycle, ensures that the duty-cycle never exceeds 50%. The undervoltage lockout feature ensures that VREF is stabilized within specification before the output stage is enabled. The CS3845B has been optimized for lower start up current (500A max).
Other features include 1% trimmed band gap reference, pulse-by-pulse current limiting, and a high-current totem pole output for driving capacitive loads.
CS3845B Maximum Ratings
Supply Voltage (ICC<30mA).........................................................Self Limiting
Supply Voltage (Low Impedance Source)..................................................30V
Output Current ......................................................................................±1A
Output Energy (Capacitive Load) ..............................................................5J
Analog Inputs (VFB, VSENSE).....................................................-0.3V to 5.5V
Error Amp Output Sink Current............................................................ ..10mA
Lead Temperature Soldering
Wave Solder (through hole styles only) .............. 10 sec. max, 260°C peak
Reflow (SMD styles only) ...............60 sec. max above 183°C, 230°C peak
Supply Voltage (Low Impedance Source)..................................................30V
Output Current ......................................................................................±1A
Output Energy (Capacitive Load) ..............................................................5J
Analog Inputs (VFB, VSENSE).....................................................-0.3V to 5.5V
Error Amp Output Sink Current............................................................ ..10mA
Lead Temperature Soldering
Wave Solder (through hole styles only) .............. 10 sec. max, 260°C peak
Reflow (SMD styles only) ...............60 sec. max above 183°C, 230°C peak
CS3845B Features
` Optimized for Off-line Use
` Temperature Compensated Oscillator
` 50% Maximum Duty-cycle Clamp
` Low Start-up Current (500A max)
` Pulse-by-pulse Current Limiting
` Undervoltage Active Pull Down
` Double Pulse Suppression
` 1% Trimmed Bandgap Reference
` High Current Totem Pole Output
` Temperature Compensated Oscillator
` 50% Maximum Duty-cycle Clamp
` Low Start-up Current (500A max)
` Pulse-by-pulse Current Limiting
` Undervoltage Active Pull Down
` Double Pulse Suppression
` 1% Trimmed Bandgap Reference
` High Current Totem Pole Output
CS3845B Connection Diagram
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