LTC1473 データシートの表示（PDF） - Linear Technology
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LTC1473 Datasheet PDF : 16 Pages
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LTC1473
ABSOLUTE MAXIMUM RATINGS
(Note 1)
DCIN, BAT1, BAT2 Supply Voltage .............. – 0.3 to 32V
SENSE +, SENSE –, V + .................................. – 0.3 to 32V
GA1, GB1, GA2, GB2 ................................... – 0.3 to 42V
SAB1, SAB2 ................................................. – 0.3 to 32V
SW, VGG ...................................................... – 0.3 to 42V
IN1, IN2, DIODE ........................................– 0.3V to 7.5V
Junction Temperature (Note 2) ............................. 125°C
Operating Temperature Range
Commercial ............................................. 0°C to 70°C
Industrial ........................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
IN1 1
IN2 2
DIODE 3
TIMER 4
V+ 5
VGG 6
SW 7
GND 8
TOP VIEW
16 GA1
15 SAB1
14 GB1
13 SENSE+
12 SENSE–
11 GA2
10 SAB2
9 GB2
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
TJMAX = 125°C, θJA = 150°C/ W
Consult factory for Military grade parts.
ORDER PART
NUMBER
LTC1473CGN
LTC1473IGN
GN PART MARKING
1473
1473I
ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
Test circuit, V + = 20V, unless otherwise specified.
SYMBOL
V+
IS
VGS
V +UVLO
V
+
UVLOHYS
VHIDIGIN
VLODIGIN
IIN
VGS(ON)
VGS(OFF)
IBSENSE+
IBSENSE–
VSENSE
IPDSAB
ITIMER
VTIMER
t ON
t OFF
t D1
t D2
fOVGG
PARAMETER
CONDITIONS
Supply Operating Range
Supply Current
VGS Gate Supply Voltage
V+ Undervoltage Lockout Threshold
V+ Undervoltage Lockout Hysteresis
VIN1 = VDIODE = 5V, VIN2 = 0V, VSENSE+ = VSENSE– = 20V
VGS = VGG – V+
V + Ramping Down
Digital Input Logic High
Digital Input Logic Low
Input Current
Gate-to-Source ON Voltage
Gate-to-Source OFF Voltage
SENSE + Input Bias Current
SENSE – Input Bias Current
Inrush Current Limit Sense Voltage
SAB1, SAB2 Pull-Down Current
Timer Source Current
Timer Latch Threshold Voltage
Gate Drive Rise Time
Gate Drive Fall Time
Gate Drive Turn-On Delay
Gate Drive Turn-Off Delay
VGG Regulator Operating Frequency
VIN1 = VIN2 = VDIODE = 5V
IGA1 = IGA2 = IGB1 = IGB2 = – 1µA, VSAB1 = VSAB2 = 20V
IGA1 = IGA2 = IGB1 = IGB2 = 100µA, VSAB1 = VSAB2 = 20V
VSENSE + = VSENSE– = 20V
VSENSE + = VSENSE– = 0V (Note 3)
VSENSE + = VSENSE– = 20V
VSENSE + = VSENSE– = 0V (Note 3)
VSENSE – = 20V (VSENSE + – VSENSE –)
VSENSE – = 0V (VSENSE + – VSENSE–)
VIN1 = VIN2 = VDIODE = 0.8V
VIN1 = VIN2 = 0.8V, VDIODE = 2V
VIN1 = 0.8V, VIN2 = VDIODE = 2V, VTIMER = 0V,
VSENSE + – VSENSE– = 300mV
VIN1 = 0.8V, VIN2 = VDIODE = 2V
CGS = 1000pF, VSAB1 = VSAB2 = 0V (Note 4)
CGS = 1000pF, VSAB1 = VSAB2 = 20V (Note 4)
CGS = 1000pF, VSAB1 = VSAB2 = 0V (Note 4)
CGS = 1000pF, VSAB1 = VSAB2 = 20V (Note 4)
MIN
4.75
q
q 7.5
2.7
0.75
q2
q
q 5.0
q
q2
q – 300
q2
q – 300
q 0.15
0.10
5
30
q3
q 1.1
TYP
100
8.5
3.1
1
1.6
1.5
5.7
0
4.5
– 160
4.5
– 160
0.20
0.20
20
200
5.5
1.2
33
2
22
1
30
MAX
30
200
9.5
3.5
1.25
0.8
±1
7.0
0.4
6.5
– 100
6.5
– 100
0.25
0.30
35
350
9
UNITS
V
µA
V
V
V
V
V
µA
V
V
µA
µA
µA
µA
V
V
µA
µA
µA
1.3
V
µs
µs
µs
µs
kHz
2
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