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參數(shù)資料
| 型號： | LX1665CDW |
| 廠商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL OUTPUT PWM CONTROLLERS WITH 5-BIT DAC |
| 中文描述： | 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO18 |
| 封裝： | ROHS COMPLIANT, PLASTIC, SOIC-18 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 354K |
| 代理商： | LX1665CDW |
LX1664/1664A, LX1665/65A
3
!!!
"#$$%&!!
(
Unless otherwise specified, 10.8 < V
CC
< 13.2, 0°C
≤
T
A
≤
70°C. Test conditions: V
CC
= 12V, T = 25°C. Use Application Circuit.
)
Reference & DAC Section
(See Table 1 - Next Page)
Regulation Accuracy
(See Table 1)
Regulation Accuracy
Timing Section
Off Time Initial
Parameter
Symbol
Test Conditions
(Less 40mV output adaptive positioning)
, V
CC
= 12V, I
LOAD
= 6A
1.8V
≤
V
OUT
≤
2.8V
OT
CC_CORE
= 1.3V, C
T
= 390pF
V
CC_CORE
= 3.5V, C
T
= 390pF
V
CC_CORE
= 1.3V to 3.5V
V
CC_CORE
= 1.3V, V
CT
= 1.5V
Off Time Temp Stability
Discharging Current
Ramp Peak
Ramp Peak-Valley
I
DIS
V
P
V
RPP
V
CC_CORE
= 1.3V
V
CC_CORE
= 3.5V
10% Overdrive
Ramp Valley Delay to Output
Error Comparator Section
Input Bias Current
Input Offset Voltage
E
C
Delay to Output
Current Sense Section
Input Bias Current (V
CC_CORE
Pin)
Pulse By Pulse C
L
I
B
1.3V < V
INV
= V
CC_CORE
< 3.5V
Initial Accuracy
Initial Accuracy
10% Overdrive
LX1664/1665
LX1664A/1665A
V
CLP
C
S
Delay to Output
Output Drivers Section
Drive Rise Time
Drive Fall Time
Drive High
I
B
1.3V < V
SS
= V
INV
< 3.5V
V
IO
10% Overdrive
T
R
F
V
DH
V
C1
= V
CC
= 12V, C
L
= 3000pF
V
C1
= V
CC
= 12V, C
L
= 3000pF
V
CC
= V
CC
= 12V, I
SOURCE
= 20mA
V
CC
= V
CC
= 12V, I
SINK
= 200mA
V
CC
= V
CC
= 12V, I
SOURCE
= 20mA
V
CC
= V
CC
= 12V, I
SINK
= 200mA
V
CC
= V
C
= 0, I
PULL UP
= 2mA
Drive Low
V
DL
Output Pull Down
UVLO and S.S. Section
Start-Up Threshold
Hysteresis
SS Sink Current
SS Sat Voltage
Supply Current Section
Dynamic Operating Current
Power Good / Over-Voltage Protection Section
(LX1665 Only)
Lower Threshold
Hysteresis
Power Good Voltage Low
Over-Voltage Threshold
OVP Sourcing Current
Linear Regulator Section
Output Voltage
Setpoint Accuracy
Output Temperature Drift
Load Regulation
Cummulative Accuracy
Op-Amp Output Current
V
PD
V
ST
V
HYST
I
SD
V
OL
V
C1
= 10.1V
V
C1
= 9V, I
SD
= 200μA
I
CD
V
CC
= V
C1
= 12V, Out Freq = 200kHz, C
L
= 0
(V
CC_CORE
/ DAC
OUT
)
I
PWRGD
= 5mA
(V
CC_CORE
/ V
DAC
)
V
OV
= 5V
Units
-30
-1
30
1
mV
%
LX1664/1665 (A)
Min.
Typ.
Max.
2
1
40
210
2
1
0.42
100
μs
μs
ppm
μA
V
V
V
ns
180
240
0.9
0.37
1.1
0.47
0.8
41
200
2
μA
mV
ns
36
46
27
100
60
200
35
115
70
μA
mV
mV
ns
85
50
70
70
11
10
0.06
0.8
0.8
ns
ns
V
V
V
V
V
0.1
1.2
1.4
9.9
10.1
0.31
5.5
0.15
10.4
V
V
2
mA
V
0.6
27
mA
88
90
1
0.5
117
45
92
%
%
V
%
mA
0.7
125
110
30
Set by external resistors
I
L
= 0.5A using 0.5% resistors
Open Loop
1.5
-1.5
3.6
1.5
V
%
40
ppm
%
%
mA
1.5
3
50
70
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