參數(shù)資料
型號(hào)： UCC2813-4QDRQ1
廠商： Texas Instruments, Inc.
英文描述： LOW-POWER BICMOS CURRENT-MODE PWM
中文描述： 低功率BiCMOS電流模式PWM
文件頁(yè)數(shù)： 5/13頁(yè)
文件大?。?/td> 404K
代理商： UCC2813-4QDRQ1
SGLS245 MAY 2004
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics T
A
= 40 C to 125 C, V
CC
= 10 V (see Note 1), RT = 100 k
from REF to
RC, CT = 330 pF from RC to GND, 0.1 F capacitor from V
CC
to GND, 0.1 F capacitor from V
REF
to GND
and T
A
= T
J
(unless otherwise stated)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Undervoltage Lockout Section
UCC2813-0
6.6
7.2
7.8
Start threshold
See Note 6
UCC2813-1
8.6
9.4
10.2
V
UCC2813-2/4
11.5
12.5
13.5
UCC2813-3/5
3.7
4.1
4.5
UCC2813-0
6.3
6.9
7.5
Stop threshold
See Note 6
UCC2813-1
6.8
7.4
8
V
UCC2813-2/4
7.6
8.3
9
UCC2813-3/5
3.2
3.6
4
UCC2813-0
0.12
0.3
0.48
Start to stop hysteresis
UCC2813-1
1.6
2
2.4
V
UCC2813-2/4
3.5
4.2
5.1
UCC2813-3/5
0.2
0.5
0.8
Soft Start Section
COMP rise time
FB = 1.8 V,
Rise from 0.5 V to REF 1 V
4
10
ms
Overall Section
Start-up current
VCC < Start Threshold
FB = 0 V,
0.1
0.23
mA
Operating supply current
CS = 0 V,
RC = 0 V
0.5
1.2
mA
VCC internal zener voltage
VCC internal zener voltage minus start
threshold voltage
NOTES:
1. Adjust VCC above the start threshold before setting at 10 V.
2. Oscillator frequency for the UCC2813-0, UCC2813-2, and UCC2813-3 is the output frequency.
Oscillator frequency for the UCC2813-1, UCC2813-4, and UCC2813-5 is twice the output frequency.
3. Gain is defined by: A =
VCS
4. Parameter measured at trip point of latch with pin 2 at 0 V.
5. Total variation includes temperature stability and load regulation.
6. Start threshold, stop threshold, and Zener shunt thresholds track one another.
7. Not production tested.
8. The device is fully operating in clamp mode as the forcing current is higher than the normal operating supply current.
ICC = 10 mA,
See Notes 6 and 8
12
13.5
15
V
See Note 6
UCC2813-2/4
0.5
1.0
V
VCOMP
0
VCS
0.8 V.
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