LTC1709EG-7 查看數據表（PDF） - Linear Technology
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LTC1709EG-7
Linear Technology
LTC1709EG-7 Datasheet PDF : 28 Pages
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LTC1709-7
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (VIN).........................36V to – 0.3V
Topside Driver Voltages (BOOST1,2) .........42V to – 0.3V
Switch Voltage (SW1, 2) .............................36V to – 5 V
SENSE1+, SENSE2 +, SENSE1–,
SENSE2 – Voltages ................... (1.1)INTVCC to – 0.3V
EAIN, VOS+, VOS–, EXTVCC, INTVCC, RUN/SS,
VBIAS, ATTENIN, ATTENOUT, PGOOD,
VID0–VID4, Voltages ...............................7V to – 0.3V
Boosted Driver Voltage (BOOST-SW) ..........7V to – 0.3V
PLLFLTR, PLLIN, VDIFFOUT,
FCB Voltages ................................... INTVCC to – 0.3V
ITH Voltage ................................................2.7V to – 0.3V
Peak Output Current <1µs(TGL1,2, BG1,2) ................ 3A
INTVCC RMS Output Current ................................ 50mA
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
UW U
PACKAGE/ORDER I FOR ATIO
RUNN/SS 1
SENSE1+ 2
SENSE1– 3
EAIN 4
PLLFLTR 5
PLLIN 6
FCB 7
ITH 8
SGND 9
VDIFFOUT 10
VOS– 11
VOS+ 12
SENSE2– 13
SENSE2+ 14
ATTENOUT 15
ATTENIN 16
VID0 17
VID1 18
TOP VIEW
36 NC
35 TG1
34 SW1
33 BOOST1
32 VIN
31 BG1
30 EXTVCC
29 INTVCC
28 PGND
27 BG2
26 BOOST2
25 SW2
24 TG2
23 PGOOD
22 VBIAS
21 VID4
20 VID3
19 VID2
ORDER PART
NUMBER
LTC1709EG-7
G PACKAGE
36-LEAD PLASTIC SSOP
TJMAX = 125°C, θJA = 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 TA = 25°C. VIN = 15V, VBIAS = 5V, VRUN/SS = 5V unless otherwise noted.
SYMBOL PARAMETER
Main Control Loop
VEAIN
VSENSEMAX
IINEAIN
VLOADREG
Regulated Feedback Voltage
Maximum Current Sense Threshold
Feedback Current
Output Voltage Load Regulation
VREFLNREG
VFCB
IFCB
VBINHIBIT
VOVL
UVLO
gm
gmOL
Reference Voltage Line Regulation
Forced Continuous Threshold
Forced Continuous Current
Burst Inhibit (Constant Frequency)
Threshold
Output Overvoltage Threshold
Undervoltage Lockout
Transconductance Amplifier gm
Transconductance Amplifier Gain
CONDITIONS
MIN TYP MAX UNITS
ITH Voltage = 1.2V (Note 4)
VSENSE – = 5V
(Note 4)
q 0.792 0.800 0.808
V
q 62
75
88
mV
–5
– 50
nA
(Note 4)
Measured in Servo Loop, ∆ITH Voltage: 1.2V to 0.7V q
Measured in Servo Loop, ∆ITH Voltage: 1.2V to 2V q
0.1
0.5
%
– 0.1 – 0.5
%
VIN = 3.6V to 30V (Note 4)
0.002 0.02
%/V
q 0.76
0.8
0.84
V
– 0.17 – 1
µA
Measured at FCB pin
4.3
4.8
V
Measured at VEAIN
VIN Ramping Down
ITH = 1.2V, Sink/Source 5µA (Note 4)
ITH = 1.2V, (gm × ZL; No Ext Load) (Note 4)
q 0.84 0.86 0.88
V
3
3.5
4
V
3
mmho
1.5
V/mV
2
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