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UCC2813QPWR-3Q1
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UCC2813QPWR-3Q1数据手册
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SGLS245D − MAY 2004 − REVISED APRIL 2008
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 noted)
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
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
Start-up current V
CC
< Start hreshold 0.1 0.23 mA
Operating supply current FB = 0 V, CS = 0 V, RC = 0 V 0.5 1.2 mA
V
CC
internal zener voltage I
CC
= 10 mA, See Notes 6 and 8 12 13.5 15 V
V
CC
internal zener voltage minus start
threshold voltage
See Note 6 UCC2813-2/-4 0.5 1.0 V
NOTES: 1. Adjust V
CC
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 =
DV
COMP
DV
CS
0 v V
CS
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.

UCC2813QPWR-3Q1 数据手册

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UCC2813QPWR3 数据手册

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