参数资料
型号: LTC3703EGN#TRPBF
厂商: Linear Technology
文件页数: 3/34页
文件大小: 0K
描述: IC REG CTRLR BST PWM VM 16-SSOP
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 330kHz
占空比: 96%
电源电压: 9.3 V ~ 15 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 16-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
LTC3703
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25°C. V CC = DRV CC = V BOOST = V IN = 10V, V MODE/SYNC = V INV = V SW =
BGRTN = 0V, RUN/SS = I MAX = open, R SET = 25k, unless otherwise specified.
SYMBOL
V CC , DRV CC
V IN
I CC
I DRVCC
I BOOST
PARAMETER
V CC , DRV CC Supply Voltage
V IN Pin Voltage
V CC Supply Current
DRV CC Supply Current
BOOST Supply Current
CONDITIONS
V FB = 0V
RUN/SS = 0V
(Note 5)
RUN/SS = 0V
(Note 5) T J ≤ 125°C
T J > 125°C
RUN/SS = 0V
l
l
l
l
l
MIN
9.3
TYP
1.7
50
0
0
360
360
0
MAX
15
100
2.5
5
5
500
800
5
UNITS
V
V
mA
μA
μA
μA
μA
μA
μA
Main Control Loop
V FB
Feedback Voltage
(Note 4)
l
0.792
0.788
0.800
0.808
0.812
V
V
? V FB(LINE)
? V FB(LOAD)
V MODE/SYNC
Feedback Voltage Line Regulation
Feedback Voltage Load Regulation
MODE/SYNC Threshold
9V < V CC < 15V (Note 4)
1V < V COMP < 2V (Note 4)
MODE/SYNC Rising
l
l
0.75
0.007
0.01
0.81
0.05
0.1
0.87
%/V
%
V
? V MODE/SYNC
MODE/SYNC Hysteresis
20
mV
I MODE/SYNC
V INV
I INV
I VIN
MODE/SYNC Current
Invert Threshold
Invert Current
V IN Sense Input Current
0 ≤ V MODE/SYNC ≤ 15V
0 ≤ V INV ≤ 15V
V IN = 100V
RUN/SS = 0V, V IN = 10V
1
0
1.5
0
100
0
1
2
1
140
1
μA
V
μA
μA
μA
I MAX
V OS(IMAX)
V RUN/SS
I RUN/SS
I MAX Source Current
V IMAX Offset Voltage
Shutdown Threshold
RUN/SS Source Current
Maximum RUN/SS Sink Current
V IMAX = 0V
|V SW | – V IMAX at I RUN/SS = 0μA
H Grade
RUN/SS = 0V
|V SW | – V IMAX ≥ 200mV, V RUN/SS = 3V
10.5
–25
–25
0.7
2.5
9
12
10
10
0.9
4
17
13.5
55
65
1.2
5.5
25
μA
mV
mV
V
μA
μA
V UV
Undervoltage Lockout
V CC Rising
V CC Falling
l
l
8.0
5.7
8.7
6.2
9.3
6.8
V
V
Oscillator
f OSC
f SYNC
Oscillator Frequency
External Sync Frequency Range
R SET = 25k
270
100
300
330
600
kHz
kHz
t ON(MIN)
Minimum On-Time
200
ns
DC MAX
Maximum Duty Cycle
f < 200kHz
89
93
96
%
Driver
I BG(PEAK)
BG Driver Peak Source Current
1.5
2
A
R BG(SINK)
I TG(PEAK)
R TG(SINK)
BG Driver Pull-Down R DS(ON)
TG Driver Peak Source Current
TG Driver Pull-Down R DS(ON)
(Note 8)
(Note 8)
1.5
1
2
1
1.5
1.5
Ω
A
Ω
Feedback Amplifier
A VOL
f U
Op Amp DC Open Loop Gain
Op Amp Unity Gain Crossover Frequency
(Note 4)
(Note 6)
74
85
25
dB
MHz
I FB
I COMP
FB Input Current
COMP Sink/Source Current
0 ≤ V FB ≤ 3V
±5
0
±10
1
μA
mA
3703fc
3
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