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UCC2808-1 डेटा पत्रक PDF( Datasheet डाउनलोड )


डेटा पत्रक - Low Power Current Mode Push-Pull PWM - Unitrode

भाग संख्या UCC2808-1
समारोह Low Power Current Mode Push-Pull PWM
मैन्युफैक्चरर्स Unitrode 
लोगो Unitrode लोगो 
पूर्व दर्शन
1 Page
		
<?=UCC2808-1?> डेटा पत्रक पीडीएफ

UCC2808-1 pdf
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (IDD 10mA) . . . . . . . . . . . . . . . . . . . . . . . 15V
Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA
OUTA/OUTB Source Current (peak) . . . . . . . . . . . . . . –500mA
OUTA/OUTB Sink Current (peak) . . . . . . . . . . . . . . . . 1000mA
Analog Inputs (FB, CS) –0.3V to VDD+0.3V, not to exceed 6V
Power Dissipation at TA = 25°C (N Package) . . . . . . . . . . . 1W
Power Dissipation at TA = 25°C (D Package) . . . . . . . . 650mW
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Junction Temperature . . . . . . . . . . . . . . . . . . –55°C to +150°C
Lead Temperature (Soldering, 10sec.) . . . . . . . . . . . . . +300°C
Currents are positive into, negative out of the specified terminal.
Consult Packaging Section of Databook for thermal limitations
and considerations of package.
CONNECTION DIAGRAM
DIL-8, SOIC-8 (Top View)
J or N Package, D Package
ORDER INFORMATION
UCC1808-1/-2
UCC2808-1/-2
UCC3808-1/-2
ELECTRICAL CHARACTERISTICS: Unless otherwise specified,TA = 0°C to 70°C for UCC3808-X, –40°C to 85°C for
UCC2808-X and –55°C to 125°C UCC1808-X, VDD = 10V (Note 6), 1µF capacitor from VDD to GND, Oscillator R = 22kΩ, C =
330pF. TA = TJ.
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
Oscillator Section
Oscillator Frequency
175 194 213 kHz
Oscillator Amplitude/VDD
(Note 1)
0.44 0.5 0.56 V/V
Error Amplifier Section
Input Voltage
COMP = 2V
1.95 2 2.05 V
Input Bias Current
–1 1 µA
Open Loop Voltage Gain
60 80
dB
COMP Sink Current
FB = 2.2V, COMP = 1V
0.3 2.5
mA
COMP Source Current
FB = 1.3V, COMP = 3.5V
–0.2 –0.5
mA
PWM Section
Maximum Duty Cycle
Measured at OUTA or OUTB
48 49 50 %
Minimum Duty Cycle
COMP = 0V
0%
Current Sense Section
Gain
(Note 2)
1.3 1.5 1.7 V/V
Maximum Input Signal
COMP = 5V (Note 3)
0.45 0.5 0.55 V
CS to Output Delay
COMP = 3.5V, CS from 0 to 600mV
100 200 ns
Input Bias Current
–200
200 nA
Over Current Threshold
0.7 0.75 0.8 V
COMP to CS Offset
CS = 0V
0.4 0.7
1
V
Output Section
OUT Low Level
I = 100mA
0.5 1
V
OUT High Level
I = –50mA, VDD – OUT
0.5 1
V
Rise Time
CL = 1nF
40 120 ns
Fall Time
CL = 1nF
20 60 ns
Undervoltage Lockout Section
Start Threshold
UCCx808-1 (Note 4)
11.5 12.5 13.5 V
UCCx808-2
4.1 4.3 4.5 V
Minimum Operating Voltage After Start
UCCx808-1 (Note 4)
7.6 8.3
9
V
UCCx808-2
3.9 4.1 4.3 V
Hysteresis
UCCx808-1
3.5 4.2 5.1 V
UCCx808-2
0.1 0.2 0.3 V
2

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