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参数资料
| 型号： | TL1453CNSR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.021 A DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | GREEN, PLASTIC, SOP-16 |
| 文件页数： | 4/8页 |
| 文件大小： | 255K |
| 代理商： | TL1453CNSR |
TL1453C
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT
SLVS039A – FEBRUARY 1990 – REVISED DECEMBER 1990
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VCC = 6 V,
f = 200 kHz (unless otherwise noted) (continued)
pwm comparator section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input threshold voltage atf=10kHz (pins 5 and 12)
Zero duty cycle
2.05
2.25
V
Input threshold voltage at f = 10 kHz (pins 5 and 12)
Maximum duty cycle
1.2
1.45
V
Input (sink) current (pins 5 and 12)
VI = 1.25 V
0.5
1.6
mA
Input (source) current (pins 5 and 12)
VI = 1.25 V
–45
–70
A
total device
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Standby supply current
Off-state
1.3
1.8
mA
Average supply current
RT = 10 k
1.7
2.4
mA
All typical values are at TA = 25°C.
test circuit
0.1
F
OUTPUT 1
OUTPUT 2
9
10
11
12
13
14
15
16
2 OUTPUT
CONTROL
2 DEAD-TIME
2 FEEDBACK
IN–2
IN+2
SCP
REF
GND
1 OUTPUT
CONTROL
1 DEAD-TIME
1 FEEDBACK
IN–1
IN+1
8
7
6
5
4
3
2
1
INPUT
TEST
INPUT
TEST
RT
CT
RT
VCC
RL
TL1453C
CT
330 pF
10 k
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