CS3810, CS3842, CS3842A Selling Leads, Datasheet
MFG:CRYSTAL Package Cooled:SOP16 D/C:09+
CS3810, CS3842, CS3842A Datasheet download
Part Number: CS3810
MFG: CRYSTAL
Package Cooled: SOP16
D/C: 09+
CS3810, CS3842, CS3842A
- Table of contents:
Info of CS3810
Info of CS3842
Info of CS3842A
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About CS3810
PDF/DataSheet Download
Datasheet: CS3810
File Size: 271885 KB
Manufacturer: ETC [ETC]
Download : Click here to Download
About CS3842A
PDF/DataSheet Download
Datasheet: CS3842A
File Size: 159884 KB
Manufacturer: CHERRY [Cherry Semiconductor Corporation]
Download : Click here to Download
About CS3842A
PDF/DataSheet Download
Datasheet: CS3842A
File Size: 159884 KB
Manufacturer: CHERRY [Cherry Semiconductor Corporation]
Download : Click here to Download
CS3842A General Description
The CS284XA, CS384XA provides all the necessary features to implement off-line fixed frequency current-mode control with a minimum number of external components.
The CS384XA family incorporates a new precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency. A precision dutycycle clamp eliminates the need for an external oscillator when a 50% dutycycle is used. Duty-cycles greater than 50% are also possible. On board logic ensures that VREF is stabilized before the output stage is enabled. Ion implant resistors provide tighter control of undervoltage lockout.
Other features include low start-up current, pulse-by-pulse current limiting, and a high-current totem pole output for driving capacitive loads, such as the gate of power MOSFET. The output is LOW in the off state, consistent with N-channel devices.
The CS384XA series of current-mode control ICs are available in 8 and14 lead packages for surface mount (SO) applications as well as 8 lead PDIP packages.
The CS384XA family incorporates a new precision temperature-controlled oscillator with an internally trimmed discharge current to minimize variations in frequency. A precision dutycycle clamp eliminates the need for an external oscillator when a 50% dutycycle is used. Duty-cycles greater than 50% are also possible. On board logic ensures that VREF is stabilized before the output stage is enabled. Ion implant resistors provide tighter control of undervoltage lockout.
Other features include low start-up current, pulse-by-pulse current limiting, and a high-current totem pole output for driving capacitive loads, such as the gate of power MOSFET. The output is LOW in the off state, consistent with N-channel devices.
The CS384XA series of current-mode control ICs are available in 8 and14 lead packages for surface mount (SO) applications as well as 8 lead PDIP packages.
CS3842A 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, Sense) .......................................................................-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, Sense) .......................................................................-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
CS3842A Features
· Optimized for Off-line Control
· Internally Trimmed Temperature Compensated Oscillator
·Maximum Duty-cycle Clamp
· VREF stabilized before Output Stage is Enabled
· Low Start-up Current
· Pulse-by-pulse Current Limiting
· Improved Undervoltage Lockout
· Double Pulse Suppression
· 1% Trimmed Bandgap Reference
· High Current Totem Pole Output
CS3842A Connection Diagram
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