LTC1709 View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC1709
Linear Technology
'LTC1709' PDF : 28 Pages View PDF
LTC1709
ELECTRICAL CHARACTERISTICS The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 15V, VRUN/SS = 5V unless otherwise noted.
SYMBOL
VRUN/SSLO
ISCL
PARAMETER
RUN/SS Pin Latchoff Arming
RUN/SS Discharge Current
ISDLHO
ISENSE
DFMAX
TG1, 2 tr
TG1, 2 tf
BG1, 2 tr
BG1, 2 tf
TG/BG t1D
Shutdown Latch Disable Current
Total Sense Pins Source Current
Maximum Duty Factor
Top Gate Transition Time:
Rise Time
Fall Time
Bottom Gate Transition Time:
Rise Time
Fall Time
Top Gate Off to Bottom Gate On Delay
Synchronous Switch-On Delay Time
BG/TG t2D Bottom Gate Off to Top Gate On Delay
Top Switch-On Delay Time
tON(MIN)
Minimum On-Time
Internal VCC Regulator
VINTVCC
Internal VCC Voltage
VLDO INT INTVCC Load Regulation
VLDO EXT EXTVCC Voltage Drop
VEXTVCC
EXTVCC Switchover Voltage
VLDOHYS EXTVCC Switchover Hysteresis
VID Parameters
RATTEN
Resistance Between ATTENIN and
ATTENOUT Pins
ATTENERR Resistive Divider Worst-Case Error
RPULLUP VID0–VID4 Pull-Up Resistance
VIDTHLOW VID0–VID4 Logic Threshold Low
VIDTHHIGH VID0–VID4 Logic Threshold High
VIDLEAK VID0–VID4 Leakage
Oscillator and Phase-Locked Loop
fNOM
fLOW
fHIGH
RPLLIN
IPLLFLTR
Nominal Frequency
Lowest Frequency
Highest Frequency
PLLIN Input Resistance
Phase Detector Output Current
Sinking Capability
Sourcing Capability
RRELPHS Controller 2-Controller 1 Phase
Differential Amplifier/Op Amp Gain Block (Note 9)
ADA
CMRRDA
Gain
Common Mode Rejection Ratio
CONDITIONS
VRUN/SS Rising from 3V
Soft Short Condition VEAIN = 0.5V;
VRUN/SS = 4.5V
VEAIN = 0.5V
Each Channel: VSENSE1–, 2 – = VSENSE1+, 2+ = 0V
In Dropout
(Note 6)
CLOAD = 3300pF
CLOAD = 3300pF
(Note 6)
CLOAD = 3300pF
CLOAD = 3300pF
(Note 6)
CLOAD = 3300pF Each Driver
(Note 6)
CLOAD = 3300pF Each Driver
Tested with a Square Wave (Note 7)
6V < VIN < 30V; VEXTVCC = 4V
ICC = 0 to 20mA; VEXTVCC = 4V
ICC = 20mA; VEXTVCC = 5V
ICC = 20mA, EXTVCC Ramping Positive
ICC = 20mA, EXTVCC Ramping Negative
Programmed from 1.3V to 2.05V (VID4 = 0)
Programmed from 2.1V to 3.5V (VID4 = 1)
(Note 8)
VBIAS < VID0–VID4 < 7V
VPLLFLTR = 1.2V
VPLLFLTR = 0V
VPLLFLTR ≥ 2.4V
fPLLIN < fOSC
fPLLIN > fOSC
Differential Amp Mode
Differential Amp Mode; 0V < VCM < 5V
MIN TYP MAX UNITS
4.1
4.5
V
0.5
2
4
µA
1.6
5
µA
– 85 – 60
µA
98
99.5
%
30
90
ns
40
90
ns
30
90
ns
20
90
ns
90
ns
90
ns
180 200
ns
4.8
5.0
5.2
V
0.2
1.0
%
120 240
mV
q 4.5
4.7
V
0.2
V
20
kΩ
q – 0.25
q – 0.35
+ 0.25
%
+ 0.25
%
40
kΩ
0.4
V
1.6
V
1
µA
190 220 250
kHz
120 140 160
kHz
280 310 360
kHz
50
kΩ
– 15
µA
15
µA
180
Deg
0.995
1
1.005
V/V
46
55
dB
3
Share Link: 