UCC1800/1/2/3/4/5
UCC2800/1/2/3/4/5
UCC3800/1/2/3/4/5
ELECTRICAL CHARACTERISTICSUnless otherwise stated, these specifications apply for –55°C ≤ TA ≤ +125°C for
UCC180x; –40°C ≤ TA ≤ +85°C for UCC280x; 0°C ≤ TA ≤ +70°C for UCC380x; VCC=10V (Note 3); RT=100k from REF to RC;
CT=330pF from RC to GND; 0.1 F capacitor from VCC to GND; 0.1 F capacitor from VREF to GND. TA=TJ.
PARAMETER
TEST CONDITIONS
UCC180X
UCC280X
UCC380X
UNITS
Output Section
OUT Low Level
I=20mA, all parts
0.1
0.4
0.1
0.4
V
V
I=200mA, all parts
0.35 0.90
0.15 0.40
0.35 0.90
0.15 0.40
I=50mA, VCC=5V, UCCx803/5
I=20mA, VCC=0V, all parts
I=–20mA, all parts
V
0.7
1.2
0.7
1.2
V
OUT High VSAT
(VCC-OUT)
0.15 0.40
0.15 0.40
V
I=–200mA, all parts
I=–50mA,VCC=5V, UCCx803/5
CL=1nF
1.0
0.4
41
1.9
0.9
70
1.0
0.4
41
1.9
0.9
70
V
V
Rise Time
ns
ns
Fall Time
CL=1nF
44
75
44
75
Undervoltage Lockout Section
Start Threshold (Note 8)
UCCx800
6.6
8.6
7.2
9.4
7.8
6.6
8.6
7.2
9.4
7.8
V
V
V
V
V
V
V
V
UCCx801
10.2
10.2
UCCx802/4
UCCx803/5
UCCx1800
UCCx1801
UCCx802/4
UCCx803/5
11.5 12.5 13.5 11.5 12.5 13.5
3.7
6.3
6.8
7.6
3.2
4.1
6.9
7.4
8.3
3.6
4.5
7.5
8.0
9.0
4.0
3.7
6.3
6.8
7.6
3.2
4.1
6.9
7.4
8.3
3.6
4.5
7.5
8.0
9.0
4.0
Stop Threshold (Note 8)
Undervoltage Lockout Section (cont.)
Start to Stop Hysteresis
UCCx800
0.12
1.6
3.5
0.2
0.3
2
0.48 0.12
0.3
2
0.48
2.4
5.1
0.8
V
V
V
V
UCCx801
2.4
5.1
0.8
1.6
3.5
0.2
UCCx802/4
UCCx803/5
4.2
0.5
4.2
0.5
Soft Start Section
COMP Rise Time
FB=1.8V, Rise from 0.5V to REF–1V
4
10
4
10
ms
Overall Section
Start-up Current
VCC < Start Threshold
FB=0V, CS=0V
0.1
0.5
0.2
1.0
15
0.1
0.5
0.2
1.0
15
mA
mA
V
Operating Supply Current
VCC Internal Zener Voltage
I
CC=10mA (Note 8), (Note 10)
12
13.5
1.0
12
13.5
1.0
VCC Internal Zener Voltage Minus UCCx802/4 (Note 8)
Start Threshold Voltage
0.5
0.5
V
Note 3: Adjust VCC above the start threshold before setting at 10V.
Note 4: Oscillator frequency for the UCCx800, UCCx802 and UCCx803 is the output frequency.
Oscillator frequency for the UCCx801, UCCx804 and UCCx805 is twice the output frequency.
∆V
COMP
Note 5: Gain is defined by: A =
0 ≤V ≤ 0.8V.
CS
∆V
CS
Note 6: Parameter measured at trip point of latch with Pin 2 at 0V.
Note 7: Total Variation includes temperature stability and load regulation.
Note 8: Start Threshold, Stop Threshold and Zener Shunt Thresholds track one another.
Note 9: Guaranteed by design. Not 100% tested in production.
Note 10: The device is fully operating in clamp mode as the forcing current is higher than the normal operating supply current.
4
ROCHESTER [ Rochester Electronics ]
