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| 型號： | UCC2813-2QDRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 10/14頁 |
| 文件大?。?/td> | 428K |
| 代理商： | UCC2813-2QDRQ1 |
UCC28130/1/2/3/4/5Q1
LOW POWER BICMOS CURRENT MODE PWM
SGLS245B MAY 2004 = REVISED APRIL 2006
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics TA = 40_C to 125_C, VCC = 10 V (see Note 1), RT = 100 k from REF to
RC, CT = 330 pF from RC to GND, 0.1 F capacitor from VCC to GND, 0.1 F capacitor from VREF to GND
and TA = TJ (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
Start threshold
See Note 6
UCC2813-2/4
11.5
12.5
13.5
V
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
Stop threshold
See Note 6
UCC2813-2/4
7.6
8.3
9
V
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
Start to stop hysteresis
UCC2813-2/4
3.5
4.2
5.1
V
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
0.1
0.23
mA
Operating supply current
FB = 0 V,
CS = 0 V,
RC = 0 V
0.5
1.2
mA
VCC internal zener voltage
ICC = 10 mA,
See Notes 6 and 8
12
13.5
15
V
VCC internal zener voltage minus start
threshold voltage
See Note 6
UCC2813-2/4
0.5
1.0
V
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 =
DVCOMP
DVCS
0
v VCS v 0.8 V.
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.
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