參數(shù)資料
型號(hào)： LX1662ACD-TR
廠商： MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP
元件分類： 穩(wěn)壓器
英文描述： 1.5 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, PDSO14
封裝： ROHS COMPLIANT, PLASTIC, SOIC-14
文件頁(yè)數(shù)： 9/15頁(yè)
文件大?。?/td> 343K
代理商： LX1662ACD-TR
SINGLE-CHIP PROGRAMMABLE PWM CONTROLLERS WITH 5-BIT DAC
LX1662/62A, LX1663/63A
PRODUCT DA T ABOOK 1996/1997
3
Copyright 1999
Rev. 1.2a, 11/04
P RODUCTION D ATA S HEET
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, 10.8 < V
CC < 13.2, 0°C ≤ TA ≤ 70°C.
Test conditions: V
CC = 12V, T = 25°C.
Use Application Circuit.)
Reference & DAC Section (See Table 1 - Next Page)
Parameter
Symbol
Test Conditions
Regulation Accuracy (See Table 1)
(Less 40mV output adaptive positioning)
, V
CC = 12V, ILOAD = 6A
Regulation Accuracy
1.8V
≤ V
OUT
≤ 2.8V
Timing Section
Off Time Initial
OT
V
CC_CORE = 1.3V, CT = 390pF
V
CC_CORE = 3.5V, CT = 390pF
Off Time Temp Stability
V
CC_CORE = 1.3V to 3.5V
Discharging Current
I
DIS
V
CC_CORE = 1.3V, VCT = 1.5V
Ramp Peak
V
P
Ramp Peak-Valley
V
RPP
V
CC_CORE = 1.3V
V
CC_CORE = 3.5V
Ramp Valley Delay to Output
10% Overdrive
Input Bias Current (V
CC_CORE Pin)
I
B
1.3V < V
INV = VCC_CORE < 3.5V
Pulse By Pulse C
L
LX1662/1663
V
CLP
Initial Accuracy
LX1662A/1663A
Initial Accuracy
C
S Delay to Output
10% Overdrive
Error Comparator Section
Input Bias Current
I
B
1.3V < V
SS = VINV < 3.5V
Input Offset Voltage
V
IO
E
C Delay to Output
10% Overdrive
Output Drivers Section
Drive Rise Time
T
R
V
C1 = VCC = 12V, CL = 3000pF
Drive Fall Time
T
F
V
C1 = VCC = 12V, CL = 3000pF
Drive High
V
DH
V
CC = VCC = 12V, ISOURCE = 20mA
V
CC = VCC = 12V, ISINK = 200mA
Drive Low
V
DL
V
CC = VCC = 12V, ISOURCE = 20mA
V
CC = VCC = 12V, ISINK = 200mA
Output Pull Down
V
PD
V
CC = VC = 0, IPULL UP = 2mA
UVLO and S.S. Section
Start-Up Threshold
V
ST
Hysteresis
V
HYST
SS Sink Current
I
SD
V
C1 = 10.1V
SS Sat Voltage
V
OL
V
C1 = 9V, ISD = 200A
Supply Current Section
Dynamic Operating Current
I
CD
V
CC = VC1 = 12V, Out Freq = 200kHz, CL = 0
Power Good / Over-Voltage Protection Section (LX1663 Only)
Lower Threshold
(V
CC_CORE / DACOUT)
Hysteresis
Power Good Voltage Low
I
PWRGD = 5mA
Over-Voltage Threshold
(V
CC_CORE / VDAC)
OVP Sourcing Current
V
OV = 5V
Units
-30
30
mV
-1
1
%
LX1662/1663 (A)
Min.
Typ.
Max.
2s
1s
40
ppm
180
210
240
A
2V
0.9
1
1.1
V
0.37
0.42
0.47
V
100
ns
0.8
2
A
36
41
46
mV
200
ns
27
35
A
85
100
115
mV
50
60
70
mV
200
ns
70
ns
70
ns
11
V
10
V
0.06
0.1
V
0.8
1.2
V
0.8
1.4
V
9.9
10.1
10.4
V
0.31
V
2
5.5
mA
0.15
0.6
V
27
mA
88
90
92
%
1%
0.5
0.7
V
110
117
125
%
30
45
mA
Current Sense Section
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