UC1858, UC1860, UC1863 Selling Leads, Datasheet
MFG:UNIDEN Package Cooled:04+ D/C:2
UC1858, UC1860, UC1863 Datasheet download
Part Number: UC1858
MFG: UNIDEN
Package Cooled: 04+
D/C: 2
UC1858, UC1860, UC1863
- Table of contents:
Info of UC1858
Info of UC1860
Info of UC1863
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About UC1-1
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Datasheet: UC1-1
File Size: 189406 KB
Manufacturer: TI [Texas Instruments]
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About UC1860
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Datasheet: UC1860
File Size: 598364 KB
Manufacturer:
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About UC1-1
PDF/DataSheet Download
Datasheet: UC1-1
File Size: 189406 KB
Manufacturer: TI [Texas Instruments]
Download : Click here to Download
UC1860 General Description
The UC1860 family of control ICs is a versatile system for resonant mode power supply control. This device easily implements frequency modulated fixed-on-time control schemes as well as a number of other power supply control schemes with its various dedicated and programmable features.
The UC1860 includes a precision voltage reference, a wide-bandwidth error amplifier, a variable frequency oscillator operable to beyond 3MHz, an oscillator-triggered one-shot, dual high-current totem-pole output drivers,and a programmable toggle flip-flop. The output mode is easily programmed for various sequences such as A, off, B, off; A & B, off; or A, B, off. The error amplifier contains precision output clamps that allow programming of minimum and maximum frequency.
The device also contains an uncommitted comparator, a fast comparator for fault sensing, programmable soft start circuitry, and a programmable restart delay. Hic-up style response to faults is easily achieved. In addition,the UC1860 contains programmable under voltage lockout circuitry that forces the output stages low and minimizes supply current during start-up conditions.
UC1860 Maximum Ratings
Supply Voltage (pin 19) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Output Current, Source or Sink (pins 17 & 20)DC . . . . . . . . . 0.8A
Pulse (0.5s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 3.0A
Power Ground Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.2V
Inputs (pins 1, 2,3,4,8,9,11,12,13,14,21,22,23&24) . . . -0.4 to 6V
Error Amp Output Current, Source or Sink (pin 5). . . . . . . . . . 2mA
IVFO Current (pin 7) . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 2mA
Comparator Output Current (pin 15) . . . . . . . . . . . . . . . . . . . 5mA
Comparator Output Voltage (pin 15). . . . . . . . . . . . . . . . . . . . 15V
Soft Start or Restart Delay Sink Current (pins 22 & 23).. . . . . 5mA
Power Dissipation at TA = 50(DIP). . . . . . . . . . . . . . . . . . 1.25W
Power Dissipation at TA = 50 (PLCC). . . . . . . . . .. . . . . . . . . 1W
Lead Temperature (Soldering, 10 seconds). . . . . . . . . . . . . . 300
Note: All voltages are with respect to signal ground and all currents are positive into the specified terminal.Pin numbers refer to the DIP. Refer to Packaging Section of Databook for thermal limitations and considerations of packages.
Output Current, Source or Sink (pins 17 & 20)DC . . . . . . . . . 0.8A
Pulse (0.5s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 3.0A
Power Ground Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±0.2V
Inputs (pins 1, 2,3,4,8,9,11,12,13,14,21,22,23&24) . . . -0.4 to 6V
Error Amp Output Current, Source or Sink (pin 5). . . . . . . . . . 2mA
IVFO Current (pin 7) . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 2mA
Comparator Output Current (pin 15) . . . . . . . . . . . . . . . . . . . 5mA
Comparator Output Voltage (pin 15). . . . . . . . . . . . . . . . . . . . 15V
Soft Start or Restart Delay Sink Current (pins 22 & 23).. . . . . 5mA
Power Dissipation at TA = 50(DIP). . . . . . . . . . . . . . . . . . 1.25W
Power Dissipation at TA = 50 (PLCC). . . . . . . . . .. . . . . . . . . 1W
Lead Temperature (Soldering, 10 seconds). . . . . . . . . . . . . . 300
Note: All voltages are with respect to signal ground and all currents are positive into the specified terminal.Pin numbers refer to the DIP. Refer to Packaging Section of Databook for thermal limitations and considerations of packages.
UC1860 Features
` 3MHz VFO Linear over 100:1 Range
` 5MHz Error Amplifier with Controlled Output Swing
` Programmable One Shot Timer-Down to 100ns
` Precision 5V Reference
` Dual 2A Peak Totem Pole Outputs
` Programmable Output Sequence
` Programmable Under Voltage Lockout
` Very Low Start Up Current
` Programmable Fault Management & Restart Delay
` Uncommitted Comparator
` 5MHz Error Amplifier with Controlled Output Swing
` Programmable One Shot Timer-Down to 100ns
` Precision 5V Reference
` Dual 2A Peak Totem Pole Outputs
` Programmable Output Sequence
` Programmable Under Voltage Lockout
` Very Low Start Up Current
` Programmable Fault Management & Restart Delay
` Uncommitted Comparator
UC1860 Connection Diagram
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