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参数资料
| 型号： | LT3652EDD#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/26页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHARGER 12-DFN |
| 产品培训模块： | LT3652 Multi-Chemistry Battery Charger for Solar Power |
| 特色产品： | LT3652 2A Battery Charger Energy Harvesting Power Products |
| 标准包装： | 121 |
| 功能： | 充电管理，太阳能 |
| 电池化学： | 铅酸，LiFePO4，锂离子，锂聚合物，镍镉，镍氢 |
| 电源电压： | 4.95 V ~ 32 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 12-WFDFN 裸露焊盘 |
| 供应商设备封装： | 12-DFN-EP（3x3） |
| 包装： | 管件 |
| 产品目录页面： | 1340 (CN2011-ZH PDF) |
| 配用： | DC1568A-ND - BOARD BATTERY CHARGER SOLAR PWR |
LT3652
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C. V IN = 20V, Boost – SW = 4V, SHDN = 2V, V FB = 3.3V, C TIMER = 0.68μF.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
V IN
V IN Operating Range
V IN Start Voltage
V BAT = 4.2 (Notes 3, 4)
V BAT = 4.2 (Note 4)
l
l
4.95
7.5
32
V
V
V IN(OVLO)
V IN(UVLO)
V FB(FLT)
OVLO Threshold
OVLO Hysteresis
UVLO Threshold
UVLO Hysteresis
Float Voltage Reference
V IN Rising
V IN Rising
(Note 6)
l
l
32
3.282
3.26
35
1
4.6
0.2
3.3
40
4.95
3.318
3.34
V
V
V
V
V
V
? V RECHARGE
V FB(PRE)
V FB(PREHYST)
Recharge Reference Threshold
Reference Precondition Threshold
Reference Precondition Threshold
Hysteresis
Voltage Relative to V FB(FLT) (Note 6)
V FB Rising (Note 6)
Voltage Relative to V FB(PRE) (Note 6)
82.5
2.3
70
mV
V
mV
V IN_REG(TH)
Input Regulation Reference
V FB = 3V; V SENSE – V BAT = 50mV
l
2.65
2.7
2.75
V
I IN_REG
Input Regulation Reference Bias Current V IN_REG = V IN_REG(TH)
l
35
100
nA
I VIN
I BOOST
Operating Input Supply Current
BOOST Supply Current
CC/CV Mode, I SW = 0
Standby Mode
Shutdown ( SHDN = 0)
Switch On, I SW = 0,
l
2.5
85
15
20
3.5
mA
μA
μA
mA
2.5 < V (BOOST – SW) < 8.5
I BOOST/ I SW
V SW(ON)
BOOST Switch Drive
Switch-On Voltage Drop
I SW = 2A
V IN – V SW , I SW = 2A
30
350
mA/A
mV
I SW(MAX)
V SENSE(PRE)
Switch Current Limit
Precondition Sense Voltage
V SENSE – V BAT ; V FB = 2V
l
2.5
3
15
A
mV
V SENSE(DC)
V SENSE(C/10)
I BAT
I SENSE
Maximum Sense Voltage
C/10 Trigger Sense Voltage
BAT Input Bias Current
SENSE Input Bias Current
V SENSE – V BAT ; V FB = 3V (Note 7)
V SENSE – V BAT , Falling
Charging Terminated
Charging Terminated
l
l
95
7.5
100
10
0.1
0.1
105
12.5
1
1
mV
mV
μA
μA
I REVERSE
Charger Reverse Current
V IN = 0; V BAT = V SENSE = V SW = 4.2V
1
μA
I BAT + I SENSE + I SW
I VFB
I VFB
V FB Input Bias Current
V FB Input Bias Current
Charging Terminated
CV Operation (Note 5)
65
110
nA
nA
V NTC(H)
V NTC(L)
NTC Range Limit (High)
NTC Range Limit (Low)
V NTC Rising
V NTC Falling
l
l
1.25
0.27
1.36
0.29
1.45
0.315
V
V
V NTC(HYST)
NTC Threshold Hysteresis
% of threshold
20
%
R NTC(DIS)
NTC Disable Impedance
Impedance to ground
l
250
500
kΩ
I NTC
V SHDN
NTC Bias Current
Shutdown Threshold
V NTC = 0.8V
Rising
l
l
47.5
1.15
50
1.2
52.5
1.25
μA
V
V SHDN (HYST)
I SHDN
Shutdown Hysteresis
SHDN Input Bias Current
120
–10
mV
nA
V CHRG , V FAULT
I TIMER
Status Low Voltage
Charge/Discharge Current
10mA Load
l
25
0.4
V
μA
V TIMER(DIS)
Timer Disable Threshold
l
0.1
0.25
V
3652fd
3
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