参数资料
型号: LTC3704IMS#PBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG CTRLR INV PWM CM 10-MSOP
标准包装: 50
PWM 型: 电流模式
输出数: 1
频率 - 最大: 1MHz
占空比: 97%
电源电压: 2.5 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 125°C
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 管件
LTC3704
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
V IN Voltage ............................................... – 0.3V to 36V
TOP VIEW
INTV CC Voltage ........................................... – 0.3V to 7V
INTV CC Output Current ........................................ 50mA
GATE Voltage ........................... – 0.3V to V INTVCC + 0.3V
I TH Voltage ............................................... – 0.3V to 2.7V
RUN
I TH
NFB
FREQ
MODE/
SYNC
1
2
3
4
5
MS PACKAGE
10
9
8
7
6
SENSE
V IN
INTV CC
GATE
GND
MS PART MARKING
NFB Voltage..............................................–2.7V to 2.7V
RUN, MODE/SYNC Voltages ....................... – 0.3V to 7V
FREQ Voltage ............................................ – 0.3V to 1.5V
SENSE Pin Voltage ................................... – 0.3V to 36V
Operating Temperature Range (Note 2) .. – 40 ° C to 85 ° C
LTC3704E ............................................ –40 ° C to 85 ° C
LTC3704I ........................................... –40 ° C to 125 ° C
Junction Temperature (Note 3) ............................ 125 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
10-LEAD PLASTIC MSOP
T JMAX = 125 ° C, θ JA = 120 ° C/ W
ORDER PART
NUMBER
LTC3704EMS LTYT
LTC3704IMS LTCFW
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes specifications which apply over the full operating temperature range, otherwise specifications are at T A = 25 ° C.
V IN = V INTVCC = 5V, V RUN = 1.5V, R T = 80k, V MODE/SYNC = 0V, unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
V IN(MIN)
Minimum Input Voltage
2.5
V
I Q
V RUN+
Input Voltage Supply Current
Continuous Mode
Burst Mode Operation, No Load
Shutdown Mode
Rising RUN Input Threshold Voltage
(V INTVCC = Open, No Switching) (Note 4)
V MODE/SYNC = 5V, V ITH = 0.75V
V MODE/SYNC = 0V, V ITH = 0V (Note 5)
V RUN = 0V
V INTVCC = Open
550
250
10
1.348
1000
500
20
μ A
μ A
μ A
V
V RUN
Falling RUN Input Threshold Voltage
V INTVCC = Open
1.223
1.248
1.273
V
1.198
1.298
V
V RUN(HYST)
I RUN
RUN Pin Input Threshold Hysteresis
RUN Input Current
50
100
1
150
100
mV
nA
V NFB
I NFB
Δ V NFB
Δ V IN
Negative Feedback Voltage
NFB Pin Input Current
Line Regulation
V ITH = 0.4V (Note 5)
V ITH = 0.4V (Note 5)
V ITH = 0.4V (I-Grade) (Notes 2 and 5)
2.5V ≤ V IN ≤ 30V
–1.218
–1.212
–1.205
–1.230
7.5
0.002
–1.242
–1.248
–1.255
15
0.02
V
V
V
μ A
%/V
Δ V NFB
Δ V ITH
g m
V ITH(BURST)
Load Regulation
Error Amplifier Transconductance
Burst Mode Operation I TH Pin Voltage
V MODE/SYNC = 0V, V ITH = 0.5V to 0.90V (Note 5)
I TH Pin Load = ± 5 μ A (Note 5)
Falling I TH Voltage
–1
– 0.1
650
0.17
%
μ mho
V
V SENSE(MAX) Maximum Current Sense Input Threshold
Duty Cycle < 20%
120
150
180
mV
I SENSE(ON)
I SENSE(OFF)
SENSE Pin Current (GATE High)
SENSE Pin Current (GATE Low)
V SENSE = 0V
V SENSE = 30V
40
0.1
75
5
μ A
μ A
3704fb
2
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