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参数资料
| 型号： | LTC1980EGN#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/16页 |
| 文件大小： | 0K |
| 描述： | IC PWM BATT CHARGER/CONV 24-SSOP |
| 标准包装： | 55 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子，镍镉，镍氢 |
| 电源电压： | 2.85 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 管件 |
LTC1980
ABSOLUTE
AXI U
RATI GS
PACKAGE/ORDER I FOR ATIO
(Note 1)
V REG to GND ............................................. –0.5V to 12V
V BAT to GND ............................................. –0.5V to 12V
PROG, I SENSE .............................................. –0.5V to 5V
PROGT, REGFB, V C , BATT1, BATT2
TIMER, SS ............................................ –0.5V to V BIAS2
LDOFB, LDODRV .................................... –0.5V to V REG
WA, V BIAS1 , REG ....................................... –0.5V to 12V
MODE ................................................... –0.5V to V BIAS1
V BIAS2 ......................................................... –0.5V to 5V
OVP ............................................................ –0.5V to 5V
PROG
PROGT
REGFB
V C
LDOFB
LDODRV
V REG
WA
BATT1
1
2
3
4
5
6
7
8
9
TOP VIEW
24 SS
23 OVP
22 CAOUT
21 I SENSE
20 GND
19 V BIAS2
18 V BAT
17 TIMER
16 MODE
ORDER PART
NUMBER
LTC1980EGN
PGND to GND .................................... Connect Together
Operating Ambient Temperature Range
(Note 2) ................................................. – 40 ° C to 85 ° C
BATT2 10
RGTDR 11
PGND 12
15 REG
14 BGTDR
13 V BIAS1
Storage Temperature Range ................. – 65 ° C to 125 ° C
Lead Temperature (Soldering, 10 sec)................ 300 ° C
GN PACKAGE
24-LEAD NARROW PLASTIC SSOP
T JMAX = 125 ° C, θ JA = 85 ° C/W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T A = 25 ° C. V BAT = 2.4V, V REG = 5V, V BAT unloaded.
SYMBOL
V BAT
V REG
PARAMETER
Positive Supply Voltage, V BAT
Positive Supply Voltage, V REG
CONDITIONS
MIN
2.85
2.85
TYP
MAX
10
10
UNITS
V
V
V FB
V PROGT
Feedback Voltage
Voltage on PROGT Pin
REGFB Tied to V C
PROGT Tied to V C
●
1.194
1.194
1.225
1.225
1.256
1.256
V
V
I BURST
Burst Mode Operation
Regulator Mode, REGFB = 1.5V
0.75
mA
Supply Current, Quiescent, V REG
I HIGH
I SHDN
V UVL
V UVHYS
I SS
Supply Current, Quiescent, V REG
Supply Current in Shutdown Mode, V REG
Positive-Going Undervoltage Lockout Voltage
Undervoltage Lockout Hysteresis
Soft-Start Ramp Current
Regulator Mode, REGFB = 0V
Mode = 0V
From Either V BAT or V REG
From Either V BAT or V REG
BATT1 = 0, BATT2 = 0, Charger Mode
●
2.45
2
2.7
100
10
4.3
15
2.85
mA
μ A
V
mV
μ A
V FLOAT0
V FLOAT1
V FLOAT2
V FLOAT3
V FLOAT4
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
Output Float Voltage in Constant Voltage Mode
BATT1 = 0, BATT2 = 0
BATT1 = 1, BATT2 = 0
BATT1 = 0, BATT2 = 1 (Note 3)
BATT1 = 1, BATT2 = 1 (Note 3)
BATT1 = Open, BATT2 = Don’t Care
●
●
●
●
●
4.059
4.158
8.118
8.316
1.207
4.1
4.2
8.2
8.4
1.225
4.141
4.242
8.282
8.484
1.243
V
V
V
V
V
Measured from OVP Input
V RCHG0
Recharge Threshold, Delta Voltage with Respect
BATT2 = 0, BATT1 = 0 or 1
200
mV
to Float Voltage
V RCHG1
Recharge Threshold, Delta Voltage with Respect
BATT2 = 1, BATT1 = 0 or 1
400
mV
to Float Voltage
1980f
2
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