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參數(shù)資料
| 型號(hào)： | HPA00002DTR |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | LOW POWER CURRENT MODE PUSH-PULL PWM |
| 中文描述： | 低功耗電流模式推拉脈寬調(diào)制 |
| 文件頁(yè)數(shù)： | 4/10頁(yè) |
| 文件大?。?/td> | 174K |
| 代理商： | HPA00002DTR |
SLUS168D
–
APRIL 1999
–
REVISED AUGUST 2002
4
www.ti.com
electrical characteristics
, T
A
= 0
°
C to 70
°
C for the UCC3808
–
x,
–
40
°
C to 85
°
C for the UCC2808
–
x and
–
55
°
C
to 125
°
C for the UCC1808
–
x, VDD = 10 V (See Note 6), 1
μ
F capacitor from VDD to GND, R = 22 k
, C = 330 pF,
T
A
= T
J
, (unless otherwise specified)
output section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
OUT low level
I = 100 mA
0.5
1
V
OUT high level
I =
–
50 mA,
VDD
–
OUT
0.5
1
V
Rise time
CL = 1 nF
CL = 1 nF
25
60
ns
Fall time
25
60
ns
undervoltage lockout section
PARAMETER
TEST CONDITIONS
See Note 6
MIN
11.5
TYP
12.5
MAX
13.5
UNITS
V
Start threshold
UCCx808
–
1,
UCCx808
–
2
4.1
4.3
4.5
V
Minim m operating oltage after start
Minimum operating voltage after start
UCCx808
–
1
7.6
8.3
9
V
UCCx808
–
2
3.9
4.1
4.3
V
H steresis
Hysteresis
UCCx808
–
1
3.5
4.2
5.1
V
UCCx808
–
2
0.1
0.2
0.3
V
soft start section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
COMP rise time
FB = 1.8 V,
rise from 0.5 V to 4 V
3.5
20
ms
overall section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
μ
A
mA
Startup current
VDD < start threshold
130
260
Operating supply current
FB = 0 V,
CS = 0 V,
See Note 5 and 6
1
2
VDD zener shunt voltage
NOTES:
1. Measured at RC. Signal amplitude tracks VDD.
IDD = 10 mA,
See Note 4
13
14
15
V
2. Gain is defined by: A
VCOMP
VCS
,0
VCS
0.4 V,
3. Parameter measured at trip point of latch with FB at 0V.
4. Start threshold and zener shunt threshold track one another.
5. For UCCx808
–
1, set VDD above the start threshold before setting at 10 V.
6. Does not include current in the external oscillator network.
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| HPA00035DTR | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:Single Ended Active Clamp/Reset PWM |
| HPA00036DTR | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:Single Ended Active Clamp/Reset PWM |
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