參數(shù)資料
型號(hào)： LTC1505
廠(chǎng)商： Linear Technology Corporation
英文描述： Constant-Current/Voltage High Efficiency Battery Charger(恒定電流/電壓,高效率電池電荷控制器)
中文描述： Constant-Current/Voltage高效電池充電器（恒定電流/電壓，高效率電池電荷控制器）
文件頁(yè)數(shù)： 2/16頁(yè)
文件大小： 197K
代理商： LTC1505
2
LT1505
V
CC
, CLP, CLN, INFET, UV, 3CELL, FLAG................ 27V
SW Voltage with Respect to GND ........................... –2V
BOOST, BOOSTC Voltage with Respect to V
CC
....... 10V
GBIAS..................................................................... 10V
SYNC, BAT2, BAT, SENSE, SPIN ............................ 20V
V
C
, PROG, V
FB
, 4.1V, 4.2V........................................ 7V
CAP, SHDN..........................................................
±
3mA
ABSOLUTE
AXI
U
RATIU
W
W
W
(Note 1)
TGATE, BGATE Current Continuous....................... 0.2A
TGATE, BGATE Output Energy (per cycle) ............... 2
μ
J
Maximum Operating V
CC
......................................... 24V
Operating Ambient Temperature Range.......0
°
C to 70
°
C
Operating Junction Temperature Range ....0
°
C to 125
°
C
Storage Temperature Range................. –65
°
C to 150
°
C
Lead Temperature (Soldering, 10 sec)..................300
°
C
ORDER PART
NUMBER
LT1505CG
LT1505CG-1
ORDER PART
NUMBER
T
JMAX
= 125
°
C,
θ
JA
= 100
°
C/W
Consult factory for Industrial and Military grade parts.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
G PACKAGE
28-LEAD PLASTIC SSOP
T
JMAX
= 125
°
C,
θ
JA
= 100
°
C/W
28
27
26
25
24
23
22
21
20
19
18
17
16
15
BOOST
TGATE
SW
SYNC
SHDN
AGND
UV
INFET
CLP
CLN
COMP1
CAP
FLAG
4.1V
PGND
BGATE
GBIAS
BOOSTC
V
CC
BAT
SPIN
SENSE
BAT2
PROG
V
C
V
FB
3CELL
4.2V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
TOP VIEW
G PACKAGE
28-LEAD PLASTIC SSOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
BOOST
TGATE
SW
SYNC
SHDN
AGND
UV
INFET
NC
NC
GND
CAP
FLAG
4.1V
PGND
BGATE
GBIAS
BOOSTC
V
CC
BAT
SPIN
SENSE
BAT2
PROG
V
C
V
FB
3CELL
4.2V
NOTE:
LT1505CG-1 DOES NOT
HAVE INPUT CURRENT
LIMITING FUNCTION.
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 18V, V
BAT
= 12.6V, V
CLN
= V
CC
(LT1505), no load on any
outputs unless otherwise noted.
PARAMETER
CONDITIONS
Overall
Supply Current
V
CC
≤
24V
Sense Amplifier CA1 Gain and Input Offset Voltage
11V
≤
V
CC
≤
24V , 0V
≤
V
BAT
≤
20V
(With R
S2
= 200
, R
S3
= 200
)
R
PROG
= 4.93k
(Measured across R
S1
, Figure 1) (Note 2)
R
PROG
= 4.93k
R
PROG
= 49.3k
BOOST Pin Current
V
BOOST
= V
SW
+ 8V, 0V
≤
V
SW
≤
20V
TGATE High
TGATE Low
BOOSTC Pin Current
V
BOOSTC
= V
CC
+ 8V
Reference
Reference Voltage (Note 3)
R
PROG
= 4.93k, Measured at V
FB
with V
A
Supplying I
PROG
and Switching Off
Reference Voltage Tolerance
11V
≤
V
CC
≤
24V
PACKAGE/ORDER I
FOR
ATIO
W
U
U
The
G
denotes specifications which apply over the full operating
MIN
TYP
MAX
UNITS
G
12
15
mA
95
92
7
100
105
108
13
mV
mV
mV
G
10
2
2
1
3
3
mA
mA
mA
2.453
2.465
2.477
V
G
2.441
2.489
V
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