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参数资料
| 型号： | LT1505CG#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER CONST I/V 28SSOP |
| 标准包装： | 2,000 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子，镍镉，镍氢 |
| 电源电压： | 11 V ~ 24 V |
| 工作温度： | 0°C ~ 70°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
LT1505
ABSOLUTE M AXI M U M RATINGS (Note 1)
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
PACKAGE/ORDER I N FOR M ATIO N
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
TOP VIEW
ORDER PART
TOP VIEW
ORDER PART
BOOST
TGATE
SW
SYNC
SHDN
AGND
UV
INFET
CLP
1
2
3
4
5
6
7
8
9
28 PGND
27 BGATE
26 GBIAS
25 BOOSTC
24 V CC
23 BAT
22 SPIN
21 SENSE
20 BAT2
NUMBER
LT1505CG
BOOST
TGATE
SW
SYNC
SHDN
AGND
UV
INFET
NC
1
2
3
4
5
6
7
8
9
28 PGND
27 BGATE
26 GBIAS
25 BOOSTC
24 V CC
23 BAT
22 SPIN
21 SENSE
20 BAT2
NUMBER
LT1505CG-1
CLN 10
COMP1 11
CAP 12
FLAG 13
4.1V 14
19 PROG
18 V C
17 V FB
16 3CELL
15 4.2V
NC 10
GND 11
CAP 12
FLAG 13
4.1V 14
19 PROG
18 V C
17 V FB
16 3CELL
15 4.2V
G PACKAGE
28-LEAD PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 100 ° C/ W
G PACKAGE
28-LEAD PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 100 ° C/ W
NOTE: LT1505CG-1 DOES NOT
HAVE INPUT CURRENT
LIMITING FUNCTION.
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
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
MIN
TYP
MAX
UNITS
Overall
Supply Current
Sense Amplifier CA1 Gain and Input Offset Voltage
(With R S2 = 200 ? , R S3 = 200 ? )
V CC ≤ 24V
11V ≤ V CC ≤ 24V , 0V ≤ V BAT ≤ 20V
R PROG = 4.93k
q
95
12
100
15
105
mA
mV
(Measured across R S1 , Figure 1) (Note 2)
R PROG = 4.93k
R PROG = 49.3k
q
92
7
10
108
13
mV
mV
BOOST Pin Current
V BOOST = V SW + 8V, 0V ≤ V SW ≤ 20V
TGATE High
TGATE Low
2
2
3
3
mA
mA
BOOSTC Pin Current
V BOOSTC = V CC + 8V
1
mA
Reference
Reference Voltage (Note 3)
R PROG = 4.93k, Measured at V FB with V A
2.453
2.465
2.477
V
Supplying I PROG and Switching Off
Reference Voltage Tolerance
11V ≤ V CC ≤ 24V
q
2.441
2.489
V
1505fc
2
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