LTC3786 LINER [Linear Technology], LTC3786 Datasheet - Page 4

• Manufacturer Part Number: LTC3786
• Description: Multi-Phase Current Mode Step-Up DC/DC Controller
• Manufacturer: LINER [Linear Technology]

LTC3862-2
elecTrical characTerisTics
SYMBOL
V
I
I
V
I
V
V
RUN/Soft-Start
I
V
V
I
R
Oscillator
f
V
f
V
I
CH1-CH2
CH1-CLKOUT
D
4
specified operating junction temperature range, otherwise specifications are at T
otherwise noted.
ITH
FB
SENSE(ON)
RUN
SS
OSC
SYNC
PLLFLTR
ITH
ITH(PSKIP)
SENSE(MAX)
SENSE(MATCH)
RUN
RUNHYS
FREQ
SYNC
SS
MAX
PARAMETER
Error Amplifier Maximum Output Voltage
(Internally Clamped)
Error Amplifier Minimum Output Voltage
Error Amplifier Output Source Current
Error Amplifier Output Sink Current
Error Amplifier Input Bias Currents
Pulse Skip Mode Operation ITH Pin Voltage
SENSE Pin Current
Maximum Current Sense Input Threshold
CH1 to CH2 Maximum Current Sense
Threshold Matching
RUN Source Current
High Level RUN Channel Enable Threshold
RUN Threshold Hysteresis
SS Pull-Up Current
SS Pull-Down Resistance
Oscillator Frequency
Oscillator Frequency Range
Nominal FREQ Pin Voltage
SYNC Minimum Input Frequency
SYNC Maximum Input Frequency
SYNC Input Threshold
Phase Detector Sourcing Output Current
Phase Detector Sinking Output Current
Channel 1 to Channel 2 Phase Relationship
Channel 1 to CLKOUT Phase Relationship
Maximum Duty Cycle
CONDITIONS
V
V
(Note 6)
Rising ITH Voltage (Note 6)
Hysteresis
V
(Note 3)
V
(V
V
V
V
V
R
R
R
V
V
Rising Threshold
f
f
V
V
V
V
V
V
V
V
V
SYNC
SYNC
FB
FB
SLOPE
SLOPE
RUN
RUN
SS
RUN
SYNC
SYNC
PHASEMODE
PHASEMODE
PHASEMODE
PHASEMODE
PHASEMODE
PHASEMODE
DMAX
DMAX
DMAX
FREQ
FREQ
FREQ
SENSE1
(Notes 2, 3) The
= 1V, No Load
= 1.5V, No Load
= 0V
= 0V
= 1.5V
= 0V
> f
< f
= 45.6k
= 45.6k
= 45.6k
= External Clock
= External Clock
= 0V (Note 9)
= Float
= 3V8
= Float, Low Duty Cycle
= Float, Low Duty Cycle (Note 3)
OSC
OSC
– V
SENSE2
= 0V
= Float
= 3V8
= 0V
= Float
= 3V8
)
l
denotes the specifications which apply over the
A
= 25°C. V
IN
= 12V, RUN = 2V and SS = open, unless
l
l
l
l
l
l
MIN
280
260
650
68
65
–7
75
0.275
1.223
0.01
–0.5
1.22
TYP
–30
–50
300
300
–15
180
180
120
240
2.7
1.5
50
30
25
75
75
–5
80
–5
10
15
90
60
96
84
75
–200
MAX
320
340
500
82
85
50
2
7
UNITS
38622f
Deg
Deg
Deg
Deg
Deg
Deg
kHz
kHz
kHz
kHz
kHz
mV
mV
mV
mV
mV
mV
kΩ
µA
µA
nA
µA
µA
µA
µA
µA
µA
%
%
%
V
V
V
V
V