UCC1580-1 Unitrode Semiconductor, UCC1580-1 Datasheet - Page 3

• Manufacturer Part Number: UCC1580-1
• Description: Single Ended Active Clamp Reset PWM
• Manufacturer: Unitrode Semiconductor

ELECTRICAL CHARACTERISTICS (cont.)
range, VDD = 12V, R1 = 18.2k, R2 = 4.41k, C
Ramp Generator Section
Pulse Width Modulator Section
Error Amplifier Section
Softstart/Shutdown Section
Undervoltage Lockout Section
Supply Section
Output Drivers Section
Output Drivers Section (cont.)
40°C to 85°C for the UCC2580, 55°C to 125°C for the UCC1580, T
Ramp V
Flux Comparator Vth
Minimum Duty Cycle
Maximum Duty Cycle
PWM Comparator Offset
EAIN
I
EAOUT, VOL
EAOUT, VOH
AVOL
Gain Bandwidth Product
Start Duty Cycle
SS V
SS Restart Threshold
I
SHTDWN Vth
I
VDD On
VDD Off
LINE On
LINE Off
I
VDD Clamp
I
I
OUT1 V
OUT1 V
OUT2 V
OUT2 V
OUT1 Fall Time
OUT1 Rise Time
OUT2 Fall Time
OUT2 Rise Time
Delay 1 OUT2 to OUT1
Delay 2 OUT1 to OUT2
EAIN
SS
SHTDWN
LINE
VDD
VDD
Start
Operating
OL
OL
SAT
SAT
SAT
SAT
High
Low
High
Low
PARAMETER
T
= 100pF, R3 = 100k, C
I
OUT1, EAOUT = VOL
OUT1, EAIN = 2.6V
EAOUT = EAIN
EAOUT = EAIN
EAIN = 2.6V, I
EAIN = 2.4V, I
f = 100kHz (Note 1)
EAIN = 2.4V
I
UCC3580-2,-4
UCC3580-1,-3
LINE = 6V
I
VDD < VDD On
No Load
I
I
I
I
C
C
C
C
R3 = 100k, C
T
R3 = 100k, C
T
RAMP
SS
VDD
OUT1
OUT1
OUT2
OUT2
A
A
OUT1
OUT1
OUT2
OUT2
= T
= T
= 100 A
= 10mA
Unless otherwise stated, all specifications are over the full temperature
= 50mA
=100mA
= 30mA
= 30mA
= 100 A
J
J
= 1nF, R
= 1nF, R
= 300pF, R
= 300pF, R
= 25°C
= 25°C
OUT1
OUT1
TEST CONDITIONS
EAOUT
EAOUT
3
S
S
= 3
= 3
S
S
= C
= C
A
= 10
= 10
OUT1
= 100 A
= 100 A
= T
OUT2
OUT2
J
.
= 0, C
= 15pF
= 15pF
OUT2
= 0. T
A
= 0°C to 70°C for the UCC3580,
MIN
3.16
2.44
100
110
140
0.1
0.4
7.5
4.7
4.2
63
70
14
14
90
4
2
8
UCC1580-1,-2,-3,-4
UCC2580-1,-2,-3,-4
UCC3580-1,-2,-3,-4
TYP
3.33
150
100
400
–20
160
120
120
170
170
0.4
2.5
0.3
0.5
8.5
4.5
2.5
0.4
0.4
0.4
0.4
50
66
80
50
15
50
15
20
40
20
20
5
6
0
9
5
MAX UNITS
3.50
2.56
100
350
550
–35
150
150
250
160
140
250
200
400
3.5
1.0
1.0
0.9
0.5
5.5
0.6
9.5
5.3
4.8
1.0
1.0
69
16
10
16
50
80
50
40
0
MHz
mV
mV
mV
mA
nA
dB
nA
nA
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
A
A