LTC1629 データシートの表示（PDF） - Linear Technology
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LTC1629 Datasheet PDF : 28 Pages
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LTC1629/LTC1629-PG
ABSOLUTE AXI U RATI GS
(Note 1)
Input Supply Voltage (VIN).........................36V to – 0.3V
Topside Driver Voltages (BOOST1,2) .........42V to – 0.3V
Switch Voltage (SW1, 2) .............................36V to – 5 V
SENSE1+, SENSE2 +, SENSE1–,
SENSE2 – Voltages ........................ (1.1)INTVCC to – 0.3V
EAIN, VOS+, VOS–, EXTVCC, INTVCC,
RUN/SS, AMPMD, PGOOD Voltages ............7V to – 0.3V
Boosted Driver Voltage (BOOST-SW) ..........7V to – 0.3V
PLLFLTR, PLLIN, CLKOUT, PHASMD,
VDIFFOUT Voltages ................................ INTVCC to – 0.3V
ITH Voltage ................................................2.7V to – 0.3V
Peak Output Current <1µs(TGL1,2, BG1,2) ................ 5A
INTVCC RMS Output Current ................................ 50mA
Operating Ambient Temperature Range
LTC1629C/LTC1629C-PG .......................... 0°C to 85°C
LTC1629I/LTC1629I-PG ....................... – 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
RUN/SS 1
SENSE1+ 2
SENSE1– 3
EAIN 4
PLLFLTR 5
PLLIN 6
PHASMD 7
ITH 8
SGND 9
VDIFFOUT 10
VOS– 11
VOS+ 12
SENSE2– 13
SENSE2+ 14
28 CLKOUT
27 TG1
26 SW1
25 BOOST1
24 VIN
23 BG1
22 EXTVCC
21 INTVCC
20 PGND
19 BG2
18 BOOST2
17 SW2
16 TG2
15 AMPMD*
G PACKAGE
28-LEAD PLASTIC SSOP
*PGOOD ON LTC1629-PG
TJMAX = 125°C, θJA = 95°C/W
Consult factory for Military grade parts.
ORDER PART
NUMBER
LTC1629CG
LTC1629IG
LTC1629CG-PG
LTC1629IG-PG
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 PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Main Control Loop
VEAIN
Regulated Feedback Voltage
VSENSEMAX Maximum Current Sense Threshold
IINEAIN
VLOADREG
Feedback Current
Output Voltage Load Regulation
VREFLNREG
VOVL
UVLO
gm
gmOL
IQ
IRUN/SS
VRUN/SS
VRUN/SSLO
ISCL
ISDLDO
Reference Voltage Line Regulation
Output Overvoltage Threshold
Undervoltage Lockout
Transconductance Amplifier gm
Transconductance Amplifier Gain
Input DC Supply Current
Normal Mode
Shutdown
Soft-Start Charge Current
RUN/SS Pin ON Threshold
RUN/SS Pin Latchoff Arming
RUN/SS Discharge Current
Shutdown Latch Disable Current
(Note 3); ITH Voltage = 1.2V
VSENSE – = 5V
VSENSE1, 2 = 5V; LTC1629 Only
(Note 3)
(Note 3)
Measured in Servo Loop; ITH Voltage = 0.7V
Measured in Servo Loop; ITH Voltage = 2V
VIN = 3.6V to 30V (Note 3)
Measured at VEAIN
VIN Ramping Down
ITH = 1.2V; Sink/Source 5µA; (Note 3)
ITH = 1.2V; (gmxZL; No Ext Load); (Note 3)
(Note 4)
EXTVCC Tied to VOUT; VOUT = 5V
VRUN/SS = 0V
VRUN/SS = 1.9V
VRUN/SS Rising
VRUN/SS Rising from 3V
Soft Short Condition VEAIN = 0.5V; VRUN/SS = 4.5V
VEAIN = 0.5V
q 0.792 0.800 0.808
V
q 62
75
88
mV
65
75
85
mV
–5
– 50
nA
q
0.1
0.5
%
q
– 0.1 – 0.5
%
0.002 0.02
%/V
q 0.84 0.86 0.88
V
3
3.5
4
V
3
mmho
1.5
V/mV
470
µA
20
40
µA
– 0.5 – 1.2
µA
1.0
1.5
1.9
V
4.1
4.5
V
0.5
2
4
µA
1.6
5
µA
2
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