LTC1735C-1 View Datasheet(PDF) - Linear Technology
Part Name
Description
View to exact match
LTC1735C-1 Datasheet PDF : 28 Pages
| |||
LTC1735-1
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (VIN)........................ 36V to – 0.3V
Topside Driver Supply Voltage (BOOST)... 42V to – 0.3V
Switch Voltage (SW) ................................... 36V to – 5V
INTVCC, EXTVCC (BOOST, SW) Voltages ..... 7V to – 0.3V
SENSE+, SENSE–,
PGOOD Voltages ................ 1.1(INTVCC + 0.3V) to – 0.3V
ITH, VOSENSE, COSC Voltages .....................2.7V to – 0.3V
RUN/SS Voltage ....................(INTVCC + 0.3V) to – 0.3V
Peak Driver Output Current <10µs (TG, BG) .............. 3A
INTVCC Output Current ......................................... 50mA
Operating Ambient Temperature Range
LTC1735C-1 ............................................ 0°C to 85°C
LTC1735I-1 ........................................ – 40°C to 85°C
Junction Temperature (Note 2) ............................. 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
TOP VIEW
COSC 1
RUN/SS 2
ITH 3
PGOOD 4
SENSE– 5
SENSE+ 6
VOSENSE 7
SGND 8
16 TG
15 BOOST
14 SW
13 VIN
12 INTVCC
11 BG
10 PGND
9 EXTVCC
GN PACKAGE
S PACKAGE
16-LEAD PLASTIC SSOP 16-LEAD PLASTIC SO
TJMAX = 125°C, θJA = 130°C/W (GN)
TJMAX = 125°C, θJA = 110°C/W (S)
Consult factory for Military grade parts.
ORDER PART
NUMBER
LTC1735CGN-1
LTC1735CS-1
LTC1735IGN-1
LTC1735IS-1
ELECTRICAL CHARACTERISTICS The q denotes 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
PARAMETER
Main Control Loop
CONDITIONS
MIN TYP MAX
IVOSENSE
VOSENSE
∆VLINEREG
∆VLOADREG
Feedback Current
Feedback Voltage
Reference Voltage Line Regulation
Output Voltage Load Regulation
DF Max
gm
VOVL
IQ
VRUN/SS
IRUN/SS
ISCL
Maximum Duty Factor
Transconductance Amplifier gm
Feedback Overvoltage Lockout
Input DC Supply Current
Normal Mode
Shutdown
Run Pin Start Threshold
Run Pin Begin Latchoff Threshold
Soft-Start Charge Current
RUN/SS Discharge Current
UVLO
∆VSENSE(MAX)
ISENSE
tON(MIN)
Undervoltage Lockout
Maximum Current Sense Threshold
SENSE Pins Total Source Current
Minimum On-Time
(Note 3)
(Note 3)
VIN = 3.6V to 30V (Note 3)
(Note 3)
Measured in Servo Loop; VITH = 0.7V
Measured in Servo Loop; VITH = 2V
In Dropout
(Note 5)
3.6V < VIN < 30V
VRUN/SS = 0V
VRUN/SS, Ramping Positive
VRUN/SS, Ramping Positive
VRUN/SS = 0V
Soft Short Condition, VOSENSE = 0.5V,
VRUN/SS = 4.5V
Measured at VIN Pin (Ramping Negative)
VOSENSE = 0.7V
VSENSE– = VSENSE+ = 0V
Tested with a Square Wave (Note 4)
q 0.792
–4
0.8
0.001
– 25
0.808
0.02
q
0.1
0.3
q
– 0.1 – 0.3
98
99.4
1.3
q 0.84 0.86 0.88
450
15
25
1.0
1.5
1.9
4.1
4.5
– 0.7 – 1.2
0.5
2
4
q
q 60
3.5
3.9
75
85
60
80
160 200
UNITS
nA
V
%/V
%
%
%
mmho
V
µA
µA
V
V
µA
µA
V
mV
µA
ns
2
Share Link: 