LTC6909HMS View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
LTC6909HMS
Linear Technology
'LTC6909HMS' PDF : 22 Pages View PDF
LTC6909
ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C or as noted. Test conditions are V+ = V+A = V+D = 2.7V to 5.5V, RL = 5k,
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is connected
pin.
to
OUT1)
and
PH
=
8
unless
otherwise
specified.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
RSET
Range of the RSET Resistor
4.5V ≤ V+ ≤ 5.5V
Connected Between the V+A Pin and 2.7V ≤ V+ ≤ 4.5V
the SET Pin
10
2000
kΩ
20
2000
kΩ
Frequency Spread with SSFM
Enabled
Long-Term Stability of the Output
Frequency (Note 9)
RSET = 100k
MOD Pin = V+, GND or Open
● ±7
±10
±13
%
300
ppm/√kHr
Duty Cycle (Note 6)
SSFM Disabled
● 45
50
55
%
V+A, V+D Operating Supply Voltage Range
● 2.7
5.5
V
IS
V+ Combined Supply Current
RSET = 2M, RL = ∞, PH = 8, MOD = V+,
(fOUT = 12.5kHz), SSFM = fOUT/64
V+ = 5V
V+ = 2.7V
●
0.6 0.85
mA
●
0.55 0.8
mA
RSET = 20k, RL = ∞, PH = 3, MOD = GND,
V(f+OU=T5=V3.33MHz), SSFM = fOUT/16
●
V+ = 2.7V
●
2.4
2.7
mA
1.55
1.8
mA
RSET = 2M, RL = ∞, PH = 8, MOD = OUT1,
(fOUT = 12.5kHz), SSFM Off
V+ = 5V
●
V+ = 2.7V
●
0.4
0.65
mA
0.37
0.6
mA
VIH_MOD High Level MOD Input Voltage
● V+ – 0.4
V
VIL_MOD Low Level MOD Input Voltage
IMOD
MOD Input Current (Note 7)
VIH_PH High Level PHx Input Voltage
MOD Pin = V+, V+ = 5V
MOD Pin = GND, V+ = 5V
PHx Refers to PH0, PH1 and PH2
●
0.4
V
●
2
4
μA
● –4
–2
μA
● V+ – 0.4
V
VIL_PH
IIN_PHX
VOH
Low Level PHx Input Voltage
PHx Refers to PH0, PH1 and PH2
Digital Input Current, PH0, PH1, PH2 0V < VIN < V+
High Level Output Voltage
V+ = 5V
(OUT1 Through OUT8)(Note 7)
No Load
5mA Load to GND
●
0.4
V
●
±1
μA
4.92
V
● 4.35 4.65
V
V+ = 2.7V
No Load
2.63
V
3mA Load to GND
● 2.1
2.4
V
VOL
Low Level Output Voltage
V+ = 5V
(OUT1 Through OUT8)(Note 7)
No Load
5mA Load to V+
0.07
V
●
0.25 0.55
V
V+ = 2.7V
No Load
3mA Load to V+
0.07
V
●
0.25 0.55
V
tr
Output Rise Time (Note 8)
V+ = 5V
V+ = 2.7V
1.6
ns
2.5
ns
tf
Output Fall Time (Note 8)
V+ = 5V
V+ = 2.7V
1.6
ns
2
ns
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: LTC6909C and the LTC6909I are guaranteed functional over the
operating temperature range of –40°C to 85°C.
Note 3: The LTC6909C is guaranteed to meet specified performance from
0°C to 70°C. The LTC6909C is designed, characterized and expected to
meet specified performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LTC6909I is guaranteed to meet
specified performance from –40°C to 85°C. The LTC6909H is guaranteed
to meet specified performance from –40°C to 125°C.
6909f
3
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