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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： | 3/8页 |
| 文件大小： | 255K |
| 代理商： | TL1453CNSR |
TL1453C
DUAL PULSE-WIDTH-MODULATION CONTROL CIRCUIT
SLVS039A – FEBRUARY 1990 – REVISED DECEMBER 1990
3
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)
undervoltage lockout section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Upper threshold voltage (pin 9)
IOref = 0.1 mA, TA = 25°C
2.72
V
Lower threshold voltage (pin 9)
IOref = 0.1 mA, TA = 25°C
2.6
V
Hysteresis (pin 9)
IOref = 0.1 mA, TA = 25°C
80
120
mV
oscillator section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Frequency
CT = 330 pF, RT = 10 k
200
kHz
Standard deviation of frequency
VCC, TA, RT, CT values are constant
10%
Frequency change with voltage
VCC = 3.6 V to 40 V
1%
Frequency change with temperature
TA = –20°C to 25°C
– 0.4%
±2%
Frequency change with tem erature
TA = 25°C to 85°C
– 0.2%
±2%
dead-time control section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input bias current (pins 6 and 11)
1
A
Input threshold voltage at f
10kHz (pins 6 and 11)
Zero duty cycle
2.05
2.25
V
Input threshold voltage at f = 10kHz (pins 6 and 11)
Maximum duty cycle
1.2
1.45
V
error-amplifier section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input offset voltage
VO (pins 5 and 12) = 1.25 V
±6
mV
Input offset current
VO (pins 5 and 12) = 1.25 V
±100
nA
Input bias current
VO (pins 5 and 12) = 1.25 V
160
500
nA
1.05
Common-mode input voltage range
VCC = 3.6 V to 40 V
1.05
to
V
gg
CC
1.45
Open-loop voltage amplification
RF = 200 k
70
80
dB
Unity-gain bandwidth
1.5
MHz
Common-mode rejection ratio
60
80
dB
Positive output voltage swing
Vref – 0.1
V
Negative output voltage swing
1
V
Output (sink) current (pins 5 and 12)
VID = – 0.1 V, VO = 1.25 V
0.5
1.6
mA
Output (source) current (pins 5 and 12)
VID = 0.1 V,
VO = 1.25 V
–45
–70
A
output section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Collector off state current
VCC = 0, VO = 50 V
10
A
Collector off-state current
VO = 50 V
10
A
Output saturation voltage
IO = 10 mA
1.2
2
V
Short-circuit output current
VO = 6 V
90
mA
All typical values are at TA = 25°C.
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