參數(shù)資料
型號(hào): LTC1473
廠商: Linear Technology Corporation
英文描述: Dual Power Management Switch Driver(雙電源管理開(kāi)關(guān)驅(qū)動(dòng)器)
中文描述: 雙電源管理開(kāi)關(guān)驅(qū)動(dòng)器(雙電源管理開(kāi)關(guān)驅(qū)動(dòng)器)
文件頁(yè)數(shù): 2/16頁(yè)
文件大小: 199K
代理商: LTC1473
2
LTC1473
ABSOLUTE
AXI
U
RATIU
W
(Note 1)
W
W
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, V
GG
......................................................–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
ORDER PART
NUMBER
PACKAGE/ORDER I
FOR
ATIO
W
U
U
LTC1473CGN
LTC1473IGN
TOP VIEW
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
T
JMAX
= 125
°
C,
θ
JA
= 150
°
C/W
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
IN1
IN2
DIODE
TIMER
V
+
V
GG
SW
GND
GA1
SAB1
GB1
SENSE
+
SENSE
GA2
SAB2
GB2
SYMBOL
V
+
I
S
V
GS
V
+UVLO
V
+UVLOHYS
V
HIDIGIN
V
LODIGIN
I
IN
V
GS(ON)
V
GS(OFF)
I
BSENSE+
PARAMETER
Supply Operating Range
Supply Current
V
GS
Gate Supply Voltage
V
+
Undervoltage Lockout Threshold
V
+
Undervoltage Lockout Hysteresis
Digital Input Logic High
Digital Input Logic Low
Input Current
Gate-to-Source ON Voltage
Gate-to-Source OFF Voltage
SENSE
+
Input Bias Current
CONDITIONS
MIN
4.75
TYP
MAX
30
200
9.5
3.5
1.25
UNITS
V
V
IN1
= V
DIODE
= 5V, V
IN2
= 0V, V
SENSE+
= V
SENSE–
= 20V
V
GS
= V
GG
– V
+
V
+
Ramping Down
G
100
8.5
3.1
1
1.6
1.5
μ
A
V
V
V
V
V
μ
A
V
V
μ
A
μ
A
μ
A
μ
A
V
V
μ
A
μ
A
μ
A
G
7.5
2.7
0.75
2
G
G
0.8
±
1
7.0
0.4
6.5
–100
6.5
–100
0.25
0.30
35
350
9
V
IN1
= V
IN2
= V
DIODE
= 5V
I
GA1
= I
GA2
= I
GB1
= I
GB2
= –1
μ
A, V
SAB1
= V
SAB2
= 20V
I
GA1
= I
GA2
= I
GB1
= I
GB2
= 100
μ
A, V
SAB1
= V
SAB2
= 20V
V
SENSE+
= V
SENSE–
= 20V
V
SENSE+
= V
SENSE–
= 0V (Note 3)
V
SENSE+
= V
SENSE–
= 20V
V
SENSE+
= V
SENSE–
= 0V (Note 3)
V
SENSE–
= 20V (V
SENSE+
– V
SENSE–
)
V
SENSE–
= 0V (V
SENSE+
– V
SENSE–
)
V
IN1
= V
IN2
= V
DIODE
= 0.8V
V
IN1
= V
IN2
= 0.8V, V
DIODE
= 2V
V
IN1
= 0.8V, V
IN2
= V
DIODE
= 2V, V
TIMER
= 0V,
V
SENSE+
– V
SENSE–
= 300mV
V
IN1
= 0.8V, V
IN2
= V
DIODE
= 2V
C
GS
= 1000pF, V
SAB1
= V
SAB2
= 0V (Note 4)
C
GS
= 1000pF, V
SAB1
= V
SAB2
= 20V (Note 4)
C
GS
= 1000pF, V
SAB1
= V
SAB2
= 0V (Note 4)
C
GS
= 1000pF, V
SAB1
= V
SAB2
= 20V (Note 4)
G
5.0
5.7
0
4.5
–160
4.5
–160
0.20
0.20
20
200
5.5
G
G
G
2
–300
2
–300
0.15
0.10
5
30
3
I
BSENSE–
SENSE
Input Bias Current
G
G
V
SENSE
Inrush Current Limit Sense Voltage
G
I
PDSAB
SAB1, SAB2 Pull-Down Current
I
TIMER
Timer Source Current
G
V
TIMER
t
ON
t
OFF
t
D1
t
D2
f
OVGG
Timer Latch Threshold Voltage
Gate Drive Rise Time
Gate Drive Fall Time
Gate Drive Turn-On Delay
Gate Drive Turn-Off Delay
V
GG
Regulator Operating Frequency
G
1.1
1.2
33
2
22
1
30
1.3
V
μ
s
μ
s
μ
s
μ
s
kHz
ELECTRICAL CHARACTERISTICS
The
G
denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25
°
C.
Test circuit, V
+
= 20V, unless otherwise specified.
Consult factory for Military grade parts.
GN PART MARKING
1473
1473I
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