UCC2807D-1

Operating Supply Voltage :
Operating Supply Current :
Number of Outputs : 1
Mounting Style : SMD/SMT
Maximum Operating Temperature : + 150 C
Fall Time : 20 ns
Package / Case : SOIC-8
Switching Frequency : 1000 KHz
Rise Time : 20 ns
Duty Cycle (Max) : 81 %


Pinout




Description

The UCC2807D-1 is designed as one kind of programmable maximum duty cycle PWM controller which contains all of the control and drive circuitry required for off-line and DC-to-DC fixed frequency current mode switching power supplies with minimal external parts count. It is similar to the UCC3800 family, but with the added feature of a user programmable maximum duty cycle. Oscillator frequency and maximum duty cycle are programmed with two resistors and a capacitor.

UCC2807D-1 has six features. (1)User programmable maximum PWM duty cycle. (2)100A startup current. (3)Operation to 1MHz. (4)Internal full cycle soft start. (5)Internal leading edge blanking of current sense signal. (6)1A totem pole output. Those are all the main features.

Some absolute maximum ratings of UCC2807D-1 have been concluded into several points as follow. (1)Its supply voltage Idd=10mA would be 13.5V. (2)Its supply current would be 30mA. (3)Its out current would be +/-1A. (4)Its analog inputs (FB, CS) would be from -0.3V to Vdd+0.3V. (5)Its power dissipation would be 0.65W. (6)Its storage temperature range would be from -65°C to 150°C. (7)Its junction temperature range would be from -65°C to 150°C. (8)Its lead temperature soldering 10 seconds would be 300°C. It should be noted that stresses above those listed in absolute maximum ratings may cause permanent damage to device.

Also some electrical characteristics of UCC2807D-1 are concluded as follow. (1)Its oscillator frequency would be min 175MHz and typ 202MHz and max 228MHz. (2)Its oscillator temperature stability would be typ 2.5%. (3)Its oscillator amplitude would be typ 1/3Vdd. (4)Its error amplifier section input voltage would be min 1.95V and typ 2V and max 2.05V. (5)Its input bias current would be min -1A and max 1A. (6)Its open loop voltage gain would be min 60dB and typ 80dB. And so on. If you have any question or suggestion or want to know more information please contact us for details. Thank you!

Parameters:

Technical/Catalog Information	UCC2807D-1
Vendor	Texas Instruments
Category	Integrated Circuits (ICs)
PWM Type	Current Mode
Number of Outputs	1
Package / Case	8-SOIC (3.9mm Width)
Packaging	Tube
Duty Cycle	81%
Voltage - Supply	6.9 V ~ 13.5 V
Frequency-Max	1MHz
Buck	No
Boost	Yes
Flyback	Yes
Inverting	No
Doubler	No
Divider	No
Cuk	No
Isolated	No
Drawing Number	296; 4040047-2; D; 8
Operating Temperature	-40°C ~ 85°C
Lead Free Status	Lead Free
RoHS Status	RoHS Compliant
Other Names	UCC2807D 1 UCC2807D1 296 11393 5 ND 296113935ND 296-11393-5