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參數(shù)資料
| 型號(hào)： | TL14661 |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | RADIATION HARDENED HIGH EFFICIENCY, 5 AMP SWITCHING REGULATORS |
| 中文描述： | 抗輻射高效，5安培開關(guān)穩(wěn)壓器 |
| 文件頁數(shù)： | 7/22頁 |
| 文件大小： | 329K |
| 代理商： | TL14661 |
SLVS262 FEBRUARY 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, V
CC
= 6 V,
f = 0.43 MHz (unless otherwise noted) (continued)
undervoltage lockout section
PARAMETER
TEST CONDITIONS
MIN
TYP
2.45
MAX
UNIT
V
V(th)
V(tl)
Vhys
V(R)
High-level threshold voltage
Low-level threshold voltage
TA = 25
°
C
2.35
V
Hysteresis
Reset threshold voltage (VCC)
0.05
2.1
0.1
2.2
V
V
oscillator section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
f(OSC)
f(dev)
f(dv)
f(dT1)
f(dT2)
Oscillator frequency
C(T) = 100 pF,
All the values are constant
R(T) = 47 k
0.43
MHz
Standard deviation of frequency
7%
Frequency change with voltage
VCC = 2.5 V to 12 V
TA = 20
°
C to 25
°
C
TA = 20
°
C to 75
°
C
1%
Frequency change with temperature
0.5%
0.5%
±
4%
±
4%
output voltage monitor section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V(tOM)
Input threshold voltage (COMP terminals: pin 13, 18,
34, 37, 40)
TA = 25
°
C (channel 1, 2, 3, 4)
1.45
1.50
1.55
V
V(IOOM)
Input offset voltage (pin 9, 14)
VI(10, 15 pin) = 1.5 V,
TA = 25
°
C (channel 5,6)
VI = 1 V
VI = 0.5 V, VI(10, 15 pin) = 1.5 V
0.55
V
I(ICOMP)
Input bias current
Pin 13, 18, 34, 37, 40
Pin 9, 14
0.8
2
μ
A
short-circuit protection control section
PARAMETER
TEST CONDITIONS
TA = 25
°
C
MIN
TYP
MAX
UNIT
V(tPC)
V(STBY)
VI
I(bPC)
Input threshold voltage (pin 23)
1.45
1.53
1.61
V
UVLO standby voltage (pin 23)
20
60
100
mV
Latched input voltage (pin 23)
10
30
mV
μ
A
Input source current (pin 23)
TA = 25
°
C
1
2.5
3.5
dead-time control section (channel 3)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
μ
A
I(Idt)
V(t)
V(t100)
Input current (DTC3 terminal: pin 31)
VI(31 pin) = 0.5 V
Duty cycle = 0%
Duty cycle = 100%
1
6
Input threshold voltage
0.55
1.25
0.65
1.35
0.75
1.45
V
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