參數(shù)資料
型號(hào)： PI49FCT805BTP
元件分類(lèi)： 基準(zhǔn)電壓源/電流源
英文描述： Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators
中文描述： 雙通道高效率，低噪聲，同步降壓型開(kāi)關(guān)穩(wěn)壓器
文件頁(yè)數(shù)： 3/5頁(yè)
文件大小： 242K
代理商： PI49FCT805BTP
PI49FCT807/2807T
Fast CMOS Clock Driver
3
PS7008B 02/17/99
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Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ.
(2)
Max.
Units
I
CC
Quiescent Power
Supply Current
V
CC
= Max.
V
IN
= GND
or Vcc
3
30
μA
I
CC
Supply Current per
Input @ TTL HIGH
V
CC
= Max.,
V
IN
=
3.4V
(3)
0.5
1.5
mA
I
CCD
Supply Current per
Input per MHz
(4)
V
CC
= Max., Outputs Open
50% Duty Cycle,
One Input Toggling
V
IN
= V
CC
V
IN
= GND
0.4
0.6
mA/
MHz
I
C
Total Power Supply
Current
(6)
V
CC
= Max., Outputs Open
f
CP
= 50 MH
Z
,
50% Duty Cycle
V
IN
= V
CC
V
IN
= GND
V
IN
= 3.4V
V
IN
= GND
20
30
(5)
mA
20.7
33
(5)
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN
= 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. I
C
=I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
I
N
I
)
I
CC
= Quiescent Current
I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
I
= Input Frequency
N
I
= Number of Inputs at f
I
All currents are in milliamps and all frequencies are in megahertz.
Switching Characteristics over Operating Range
807/2807T
807AT
807BT
807CT
Com.
Com.
Com.
Com.
Parameters
Description
Conditions
(1)
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Units
t
PLH
t
PHL
t
SK(o)
Propagation Delay
A
TO
B
N
Skew between two outputs
of same package
(3)
Skew between opposite
transitions of same
output (|t
PHL
— t
PLH
|)
(3)
Skew between outputs of
different package at same
power supply, temperature
and speed grade
(3)
C
L
= 50pF
R
L
= 500
1.5
4.5
1.5
4.0
1.5
3.8
1.5
3.5
ns
—
0.5
—
0.5
—
0.35
—
0.25
ns
t
SK(p)
—
0.5
—
0.5
—
0.35
—
0.35
ns
t
SK(t)
—
1.0
—
1.0
—
0.75
—
0.75
ns
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not tested.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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PI49FCT805BTQE 功能描述:時(shí)鐘緩沖器 Non Inverting Clock Driver RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel
PI49FCT805BTQEX 功能描述:時(shí)鐘緩沖器 Non Inverting Clock Driver RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel
PI49FCT805BTQX 制造商:PERICOM 功能描述:
PI49FCT805BTS 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:Five Distributed-Output Clock Driver
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