参数资料
型号: LTC1709EG-7#PBF
厂商: Linear Technology
文件页数: 2/28页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 36-SSOP
标准包装: 37
PWM 型: 电流模式
输出数: 1
频率 - 最大: 360kHz
占空比: 99.5%
电源电压: 4 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 ~ 85°C
封装/外壳: 36-SSOP(0.209",5.30mm 宽)
包装: 管件
产品目录页面: 1339 (CN2011-ZH PDF)
LTC1709-7
ABSOLUTE
(Note 1)
AXI U RATI GS
PACKAGE/ORDER I FOR ATIO
Input Supply Voltage (V IN ).........................36V to – 0.3V
Topside Driver Voltages (BOOST1,2) .........42V to – 0.3V
Switch Voltage (SW1, 2) .............................36V to – 5 V
SENSE1 + , SENSE2 + , SENSE1 – ,
RUNN/SS
SENSE1 +
SENSE1 –
1
2
3
TOP VIEW
36 NC
35 TG1
34 SW1
ORDER PART
NUMBER
LTC1709EG-7
I TH
11
V OS
SENSE2 – Voltages ...................(1.1)INTV CC to –0.3V
EAIN, V OS+ , V OS– , EXTV CC , INTV CC , RUN/SS,
V BIAS , ATTENIN, ATTENOUT, PGOOD,
VID0–VID4, Voltages ...............................7V to – 0.3V
Boosted Driver Voltage (BOOST-SW) ..........7V to – 0.3V
PLLFLTR, PLLIN, V DIFFOUT ,
FCB Voltages ................................... INTV CC to – 0.3V
I TH Voltage ................................................2.7V to – 0.3V
Peak Output Current <1 μ s(TGL1,2, BG1,2) ................ 3A
INTV CC RMS Output Current ................................ 50mA
EAIN 4
PLLFLTR 5
PLLIN 6
FCB 7
8
SGND 9
V DIFFOUT 10
V OS+ 12
SENSE2 – 13
SENSE2 + 14
33 BOOST1
32 V IN
31 BG1
30 EXTV CC
29 INTV CC
28 PGND
27 BG2
26 BOOST2
25 SW2
24 TG2
23 PGOOD
Operating Ambient Temperature Range
(Note 2) .............................................. – 40 ° C to 85 ° C
Junction Temperature (Note 3) ............................. 125 ° C
Storage Temperature Range ................. – 65 ° C to 150 ° C
Lead Temperature (Soldering, 10 sec).................. 300 ° C
ATTENOUT 15 22 V BIAS
ATTENIN 16 21 VID4
VID0 17 20 VID3
VID1 18 19 VID2
G PACKAGE
36-LEAD PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 85 ° C/W
Consult factory for Industrial and Military grade parts.
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V IN = 15V, V BIAS = 5V, V RUN/SS = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Main Control Loop
V EAIN
V SENSEMAX
I INEAIN
V LOADREG
V REFLNREG
V FCB
Regulated Feedback Voltage
Maximum Current Sense Threshold
Feedback Current
Output Voltage Load Regulation
Reference Voltage Line Regulation
Forced Continuous Threshold
I TH Voltage = 1.2V (Note 4)
V SENSE – = 5V
(Note 4)
(Note 4)
Measured in Servo Loop, ? I TH Voltage: 1.2V to 0.7V
Measured in Servo Loop, ? I TH Voltage: 1.2V to 2V
V IN = 3.6V to 30V (Note 4)
q
q
q
q
q
0.792
62
0.76
0.800
75
–5
0.1
– 0.1
0.002
0.8
0.808
88
– 50
0.5
– 0.5
0.02
0.84
V
mV
nA
%
%
%/V
V
I FCB
Forced Continuous Current
– 0.17
–1
μ A
V BINHIBIT
Burst Inhibit (Constant Frequency)
Measured at FCB pin
4.3
4.8
V
Threshold
V OVL
UVLO
Output Overvoltage Threshold
Undervoltage Lockout
Measured at V EAIN
V IN Ramping Down
q
0.84
3
0.86
3.5
0.88
4
V
V
g m
g mOL
Transconductance Amplifier g m
Transconductance Amplifier Gain
I TH = 1.2V, Sink/Source 5 μ A (Note 4)
I TH = 1.2V, (g m × Z L ; No Ext Load) (Note 4)
3
1.5
mmho
V/mV
2
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