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参数资料
| 型号： | TL1451G-S16-T |
| 厂商： | UNISONIC TECHNOLOGIES CO LTD |
| 元件分类： | 稳压器 |
| 英文描述： | 0.021 A DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | HALOGEN FREE, SOP-16 |
| 文件页数： | 9/14页 |
| 文件大小： | 300K |
| 代理商： | TL1451G-S16-T |
TL1451
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
4 of 14
www.unisonic.com.tw
QW-R103-011.D
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Oscillator Section
Frequency
F
CT=330pF, RT=10kΩ
200
kHz
Standard deviation of frequency
CT=330pF, RT=10kΩ
10%
Frequency Change with Voltage
Vcc=3.6V ~ 40V
1%
TA=-20°C ~ 25°C
-0.4
±2
Frequency Change with Temperature
TA=25°C ~ 85°C
-0.2
±2
%
Dead-Time Control Section
Input bias Current (DTC)
IIN(BIAS)
1
μA
Latch mode (source) Current (DTC)
-80
-145
μA
Latched Input Voltage (DTC)
VIN
IOUT=40μA
2.3
V
Zero duty cycle
2.05
2.25
Input threshold Voltage at f=10kHz (DTC)
VIN(THR)
Maximum duty cycle
1.2
1.45
V
Error-Amplifier Section
Input Offset Voltage
VIN(OFF)
VOUT (FEEDBACK)=1.25V
±6
mV
Input Offset Current
IIN(OFF)
VOUT (FEEDBACK)=1.25V
±100
nA
Input Bias current
IIN(BIAS)
VOUT (FEEDBACK)=1.25V
160
500
nA
Common-Mode Input Voltage Range
VIN(CM)
Vcc=3.6V ~ 40V
1. 05~
1.45
V
Open-loop Voltage Amplification
RF=200kΩ
70
80
dB
Unity-gain Bandwidth
BG
1.5
MHz
Common-mode Rejection Ratio
RR
60
80
dB
Positive Output Voltage Swing
VOUT
Vref-0.1
V
Negative Output Voltage Swing
VOUT
1
V
Output (sink) Current (FEEDBACK)
IOUT(SIN)
VID=-0.1V, VOUT=1.25V
0.5
1.6
mA
Output (source) Current (FEEDBACK)
IOUT(SOU)
VID=0.1V, VOUT=1.25V
-45
-70
μA
Output Section
Collector off-state Current
IOFF
VOUT=50V
10
μA
Output Saturation Voltage
VOUT(SAT) IOUT=10mA
1.2
2
V
Short-Circuit Output Current
IOUT(SHT)
VOUT=6V
90
mA
PWM Comparator Section
Zero duty cycle
2.05
2.25
Input Threshold Voltage at f=10kHz
(FEEDBACK)
VI(THR)
Maximum duty cycle
1.2
1.45
V
TOTAL DEVICE
Standby Supply Current
ISTN-BY
Off-state
1.3
1.8
mA
Average Supply Current
RT=10kΩ
1.7
2.4
mA
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