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| 型號： | TL1466IPMR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.5 A SWITCHING CONTROLLER, 800 kHz SWITCHING FREQ-MAX, PQFP64 |
| 封裝： | GREEN, PLASTIC, LQFP-64 |
| 文件頁數(shù)： | 24/26頁 |
| 文件大小： | 538K |
| 代理商： | TL1466IPMR |
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TL1466I
HIGHSPEED/PRECISION SIX CHANNEL
SWITCHING REGULATOR CONTROLLER
SLVS262 FEBRUARY 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range, VCC = 6 V,
f = 0.43 MHz (unless otherwise noted) (continued)
undervoltage lockout section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V(th)
High-level threshold voltage
2.45
V
V(tl)
Low-level threshold voltage
TA = 25°C
2.35
V
Vhys
Hysteresis
TA = 25°C
0.05
0.1
V
V(R)
Reset threshold voltage (VCC)
2.1
2.2
V
oscillator section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
f(OSC)
Oscillator frequency
C(T) = 100 pF,
R(T) = 47 k
0.43
MHz
f(dev)
Standard deviation of frequency
All the values are constant
7%
f(dv)
Frequency change with voltage
VCC = 2.5 V to 12 V
1%
f(dT1)
Frequency change with temperature
TA = 20°C to 25°C
0.5%
±4%
f(dT2)
Frequency change with temperature
TA = 20°C to 75°C
0.5%
±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)
0.55
V
I(ICOMP) Input bias current
Pin 13, 18, 34, 37, 40
VI = 1 V
0.8
2
A
I(ICOMP) Input bias current
Pin 9, 14
VI = 0.5 V,
VI(10, 15 pin) = 1.5 V
0.8
2
A
short-circuit protection control section
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V(tPC)
Input threshold voltage (pin 23)
TA = 25°C
1.45
1.53
1.61
V
V(STBY) UVLO standby voltage (pin 23)
20
60
100
mV
VI
Latched input voltage (pin 23)
10
30
mV
I(bPC)
Input source current (pin 23)
TA = 25°C
1
2.5
3.5
A
dead-time control section (channel 3)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
I(Idt)
Input current (DTC3 terminal: pin 31)
VI(31 pin) = 0.5 V
1
6
A
V(t)
Input threshold voltage
Duty cycle = 0%
0.55
0.65
0.75
V
V(t100)
Input threshold voltage
Duty cycle = 100%
1.25
1.35
1.45
V
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