LT1339C View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LT1339C' PDF : 20 Pages View PDF
LT1339
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltages
Power Supply Voltage (12VIN)...............– 0.3V to 20V
Topside Supply Voltage (VBOOST)
VTS – 0.3V to VTS + 20V (VMAX = 75V)
Topside Reference Pin Voltage (TS) ......– 0.3V to 60V
Input Voltages
Sense Amplifier Input Common Mode ...– 0.3V to 60V
RUN/SHDN Pin Voltage ...................... – 0.3V to 12VIN
All Other Inputs .......................................– 0.3V to 7V
Maximum Currents
5V Reference Output Current............................ 65mA
Maximum Temperatures
Operating Ambient Temperature Range
LT1339C............................................. 0°C to 70°C
LT1339I ......................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER I FOR ATIO
TOP VIEW
SYNC 1
5VREF 2
CT 3
SL/ADJ 4
IAVG 5
SS 6
VC 7
SGND 8
VFB 9
VREF 10
20 VBOOST
19 TG
18 TS
17 12VIN
16 BG
15 PGND
14 PHASE
13 RUN/SHDN
12 SENSE–
11 SENSE+
N PACKAGE
SW PACKAGE
20-LEAD PDIP 20-LEAD PLASTIC SO WIDE
TJMAX = 125°C, θJA = 70°C/W (N)
TJMAX = 125°C, θJA = 85°C/W (SW)
ORDER PART
NUMBER
LT1339CN
LT1339CSW
LT1339IN
LT1339ISW
Consult factory for Military grade parts.
ELECTRICAL CHARACTERISTICS
12VIN = VBOOST = 12V, VC = 2V, TS = 0V, VFB = VREF = 1.25V, CTG = CBG = 3000pF, TA = 25°C unless otherwise noted.
SYMBOL PARAMETER
Supply and Protection
I12VIN
DC Active Supply Current (Note 2)
DC Standby Supply Current
IBOOST
DC Active Supply Current (Note 2)
DC Standby Supply Current
VRUN/SHDN Shutdown Rising Threshold
VSSHYST Shutdown Threshold Hysteresis
ISS
Soft Start Charge Current
VUVLO
Undervoltage Lockout Threshold - Falling
Undervoltage Lockout Threshold - Rising
Undervoltage Lockout Hysteresis
5V Reference
VREF5
5V Reference Voltage
5V Reference Line Regulation
IREF5
5V Reference Load Range - DC
Pulse
5V Reference Load Regulation
ISC
5V Reference Short-Circuit Current
CONDITIONS
VRUN/SHDN < 0.5V
VRUN/SHDN < 0.5V
Line, Load and Temperature
10V ≤ 12VIN ≤ 15V
0 ≤ IREF5 ≤ 20mA
MIN
q
q
q 1.15
q4
q 8.20
q
q 200
q 4.75
q
q
q
q
TYP
14
150
2.2
0
1.25
25
8
9.00
9.35
350
5.00
3
– 1.25
45
MAX UNITS
20
mA
250
µA
mA
µA
1.35
V
mV
14
µA
9.75
V
9.95
V
mV
5.25
V
5
mV/V
10
mA
20
mA
–2
V/A
mA
2
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