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參數資料
| 型號： | UCC2813-2QDRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩壓器 |
| 英文描述： | 1 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數： | 9/14頁 |
| 文件大小： | 428K |
| 代理商： | UCC2813-2QDRQ1 |
UCC28130/1/2/3/4/5Q1
LOW POWER BICMOS CURRENT MODE PWM
SGLS245B MAY 2004 = REVISED APRIL 2006
4
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
Oscillator Section
Oscillator frequency
See Note 2
UCC2813-0/1/2/4
40
46
52
kHz
Oscillator frequency
See Note 2
UCC2813-3/5
26
31
36
kHz
Temperature stability
See Note 7
2.5
%
Amplitude peak-to-peak
2.25
2.4
2.55
V
Oscillator peak voltage
2.45
V
Error Amplifier Section
Input voltage
COMP = 2.5 V
UCC2813-0/1/2/4
2.42
2.5
2.56
V
Input voltage
COMP = 2.0 V
UCC2813-3/5
1.92
2
2.05
V
Input bias current
2
A
Open loop voltage gain
60
80
dB
COMP sink current
FB = 2.7 V,
COMP = 1.1 V
0.3
3.5
mA
COMP source current
FB = 1.8 V,
COMP = REF 1.2 V
0.2
0.5
0.8
mA
Gain bandwidth product
See Note 7
2
MHz
PWM Section
Maximum duty cycle
UCC2813-0/2/3
97
99
100
%
Maximum duty cycle
UCC2813-1/4/5
48
49
50
%
Minimum duty cycle
COMP = 0 V
0
%
Current Sense Section
Gain
See Note 3
1.1
1.65
1.8
V/V
Maximum input signal
COMP = 5 V,
See Note 4
0.9
1
1.1
V
Input bias current
200
nA
CS blank time
50
100
150
ns
Over-current threshold voltage
1.32
1.55
1.7
V
COMP to CS offset voltage
CS = 0 V
0.45
0.9
1.35
V
Output Section (OUT)
IOUT = 20 mA
All parts
0.1
0.4
Low-level output voltage
IOUT = 200 mA
All parts
0.35
0.9
V
Low-level output voltage
IOUT = 50 mA, VCC = 5 V
UCC2813-3/5
0.15
0.4
V
IOUT = 20 mA, VCC = 0 V
All parts
0.7
1.2
IOUT = 20 mA
All parts
0.15
0.4
High-level output voltage VSAT (VCC - OUT)
IOUT = 200 mA
All parts
1
1.9
V
High-level output voltage VSAT (VCC - OUT)
IOUT = 50 mA, VCC = 5 V
UCC2813-3/5
0.4
0.9
V
Rise time
CL = 1 nF
41
70
ns
Fall time
CL = 1 nF
44
75
ns
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