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| 型號： | 5962-8768104VEA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 2 A SWITCHING CONTROLLER, 460 kHz SWITCHING FREQ-MAX, CDIP16 |
| 封裝： | CERAMIC, DIP-16 |
| 文件頁數(shù)： | 15/16頁 |
| 文件大?。?/td> | 276K |
| 代理商： | 5962-8768104VEA |
Oscillator
UC1825
1.25 V
From E/A
CT
Ramp
CT
Conventional (Voltage Mode)
6
7
6
7
Oscillator
1.25 V
From E/A
ISWITCH
UC1825
*
RSENSE
Ramp
CT
Current Mode
* A small filter may be required to suppress
switch noise.
80
100
120
140
160
5
6
4
RT
CT
IR
3 V
IC = IR
5.1 V
Clock
TD
400 mA
Blanking
UC1825
4.70
2.20
1
0.47
0.22
0.10
0.047
1
2.2
4.7
10
22
47
100
t d
Deadtime
S
Ct Total Capacitance nF
DEADTIME
vs
TOTAL CAPACITANCE
3 k
,
RT = 100 k
4.7 nF
2.2 nF
1 nF
470 pF
10 nF
22 nF
47 nF
100 nF
100 k
10 k
1 k
100
1 k
10 k
100 k
1 M
Timing
Resistance
R
T
TIMING RESISTANCE
vs
FREQUENCY
f Frequency Hz
10 k
100 k
1 M
t d
Deadtime
S
f Frequency Hz
DEADTIME
vs
FREQUENCY
1 nF
470 pF
SLUS870 – JANUARY 2009............................................................................................................................................................................................... www.ti.com
Figure 2. PWM Applications
Figure 3. Oscillator Circuit
8
Copyright 2009, Texas Instruments Incorporated
Product Folder Link(s): UC1825-SP
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PDF描述 |
|---|---|
| 5962-8768101VEA | 2 A SWITCHING CONTROLLER, 460 kHz SWITCHING FREQ-MAX, CDIP16 |
| 5962-8768102XA | 2.2 A SWITCHING CONTROLLER, 1150 kHz SWITCHING FREQ-MAX, PBCY28 |
| 5962-87681032A | 2.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC20 |
| 5962-89905032A | 2.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CQCC20 |
| 5962-8768103EA | 2.2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, CDIP16 |
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| 5962-8768105VEA | 制造商:Texas Instruments 功能描述:Current Mode PWM Controller 100mA 16-Pin CDIP 制造商:Texas Instruments 功能描述:UC1825AJ-SP, HIGH SPEED PWM - Rail/Tube |
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