參數(shù)資料
型號(hào): LT3692IUH#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32
封裝: 5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD, QFN-32
文件頁(yè)數(shù): 23/36頁(yè)
文件大小: 526K
代理商: LT3692IUH#PBF
LT3692
3
3692f
ELECTRICAL CHARACTERISTICS The
l
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VVIN1/2 = 15V unless otherwise specified. (Note 3)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Feedback Voltage Regulation
VVIN1/2 = 3 to 40V, VVC1/2 = 0.6 to 1.6V
l
780
806
830
mV
Feedback Voltage Offset Ch 1 to Ch 2
VVC1/2 = 1V
l
–12
0
12
mV
Feedback Bias Current Ch 1/2
VFB1/2 = 0.8V, VVC1/2 = 1V
l
0
85
200
nA
TJ Output Voltage (Note 7)
TJ = 25°C, ITJ = 25A, Temperature = 25°C
ITJ = 25A, Temperature = 125°C
ITJ = 25A, Temperature = –40°C
250
1.23
–380
mV
V
mV
TJ Error
l
–60
0
60
mV
Error Amp gm Ch 1/2
VVC1/2 = 1V, IVC1/2 = ±5A
350
400
450
Mho
Error Amp Source Current Ch 1/2
VFB1/2 = 0.6V, VVC1/2 = 1V
19
25
31
A
Error Amp Sink Current Ch 1/2
VFB1/2 =1V, VVC1/2 = 1V
22
28
34
A
Error Amp High Clamp Ch 1/2
VFB1/2 = 0.6V
1.7
1.9
2.1
V
Error Amp Switching Threshold Ch 1/2
VFB1/2 = 0.6V
0.75
0.9
1.05
V
Soft-Start Source Current Ch 1/2
VFB1/2 = 0.9V, VSS1/2 = 0.05V
l
9.5
12
14.5
A
Soft-Start VOH Ch 1/2
VFB1/2 = 0.9V
1.9
2.15
2.4
V
Soft-Start Sink Current Ch 1/2
VFB1/2 = 0.4V, VSS1/2 = 2V
0.9
1.4
2
mA
Soft-Start VOL Ch 1/2
VFB1/2 = 0V
120
160
200
mV
Soft-Start to Feedback Offset Ch 1/2
VVC1/2 = 1V, VSS1/2 = 0.4V
l
–12
0
12
mV
Soft-Start Sink Current Ch 1/2 POR
VFB1/2 = 0V, VSS1/2 = 0.12V (Note 8)
150
400
600
A
Soft-Start POR Threshold Ch 1/2
VFB1/2 = 0V (Note 8)
70
90
120
mV
Soft-Start SW Disable Ch 1/2
VFB1/2 = 0V (Note 8)
95
115
150
mV
CMPI Bias Current Ch 1/2
VCMPI1/2 = 0.8V
–100
0
100
nA
CMPO Leakage Ch 1/2
VCMP1/2 = 0.8V, VCMPO1/2 = 25V,
70
200
nA
CMPI Threshold Ch 1/2
VCMPI1/2 Rising
l
700
720
740
mV
CMPI Threshold Ch 1/2 of VFB1/2
VCMPI1/2 Rising (Note 9)
86
90
94
%
CMPI Hysteresis Ch 1/2
VCMPI1/2
35
60
85
mV
CMPO Sink Current Ch 1/2
VCMPI1/2 = 0.6V, VCMPO1/2 = 0.2V,
200
300
400
A
RT/SYNC Reference Current
VFB1/2 = 0.9V, VRT/SYNC = 0.5V
l
11.3
12
12.7
A
Minimum Switching Frequency
RRT/SYNC =0Ω
50
110
150
kHz
Switching Frequency
RRT/SYNC = 28k
925
1
1075
MHz
Maximum Switching Frequency
RRT/SYNC =100k
2.25
2.5
2.75
MHz
Switching Phase Angle Ch 1 ≥ Ch 2
185
Deg
DIV Reference Current
VFB1/2 = 0.9V, VDIV = 0.5V
l
10.5
12
13.5
A
CH1 DIV 2 Threshold
RRT/SYNC = 0V
0.51
0.58
0.61
V
CH1 DIV 4 Threshold
RRT/SYNC = 0V
0.9
1.05
1.1
V
CH1 DIV 8 Threshold
RRT/SYNC = 0V
1.45
1.55
V
CLKOUT VOL
ICLKOUT = –100A
0.25
V
CLKOUT VOH
ICLKOUT = 100A
2
V
CLKOUT to SW1ON Delay ( tDCLKOSW1)
CLKOUT Rising
60
ns
CLKOUT to SW2ON Delay ( tDCLKOSW2)
CLKOUT Falling
30
ns
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