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参数资料
| 型号： | MAX1772EEI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC BAT CHRG BUILD BLCK 28QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 功能： | 充电管理 |
| 电池化学： | 多化学 |
| 电源电压： | 8 V ~ 28 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.154"，3.90mm 宽） |
| 供应商设备封装： | 28-QSOP |
| 包装： | 带卷 (TR) |
Low-Cost, Multichemistry Battery-
Charger Building Block
ELECTRICAL CHARACTERISTICS (continued)
(V DCIN = V CSSP = V CSSN = 18V, V BATT = V CSIP = V CSIN = 12V, V REFIN = 3.0V, V VCTL = V ICTL = 0.75 V REFIN , V CELLS = 2.0V,
V ACIN = 0V, CLS = REF, V BST - V LX = 4.5V, V GND = V PGND = 0V, C LDO = 1μF, LDO = DLOV, C REF = 1μF; pins CCI, CCS, and CCV
are compensated per Figure 1a; T A = 0°C to +85°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER
Maximum On-Time
Oscillator Frequency
DLOV Supply Current
BST Supply Current
LX Input Bias Current
LX Input Quiescent Current
SYMBOL
f OSC
I DLOV
I BST
CONDITIONS
(Note 2)
DLO low
DHI high
V DCIN = 28V, V BATT = V LX = 20V
V DCIN = 0V, V BATT = V LX = 20V
MIN
5
TYP
10
5
6
150
0.3
MAX
15
400
10
15
500
1.0
UNITS
ms
kHz
μA
μA
μA
μA
DHI Maximum Duty Cycle
99.0
99.9
%
DHI On-Resistance High
DHI On-Resistance Low
DLO On-Resistance High
DLO On-Resistance Low
V BST - V LX = 4.5V, I DHI = +100mA
V BST - V LX = 4.5V, I DHI = -100mA
V DLOV = 4.5V, I DLO = +100mA
V DLOV = 4.5V, I DLO = -100mA
4
1
4
1
7
2
7
2
Ω
Ω
Ω
Ω
BATT Input Current
CSIP/CSIN Input Current
CSSP/CSSN Input Current
BATT/CSIP/CSIN Input Voltage
Range
I BATT
V BATT = 19V, V DCIN = 0V
V BATT = 2V to 19V, V DCIN > V BATT + 0.3V
V DCIN = 0V
V CSIP = V CSIN = 12V
V DCIN = 0V
V CSSP = V CSSN = V DCIN > 8.0V
0
200
1
0.1
5
500
5
800
0.3
800
19
μA
μA
μA
V
CSIP to CSIN Full-Scale
Current-Sense Voltage
CSSP to CSSN Full-Scale
Current-Sense Voltage
V BATT = 12V
189
189
204
204
219
219
mV
mV
ERROR AMPLIFIERS
GMV Amplifier
Transconductance
GMI Amplifier
Transconductance
GMS Amplifier
Transconductance
CCI/CCS/CCV Clamp Voltage
VCTL = REFIN, V BATT = 16.8V, CELLS = LDO
ICTL = REFIN, V CSIP - V CSIN = 150.4mV
V CLS = 2.048V, V CSSP - V CSSN = 102.4mV
0.25V < V CCI , V CCS , V CCV < 2.0V
0.0625
0.5
0.5
150
0.1250
1
1
300
0.250
2
2
600
μS
μS
μS
mV
CURRENT AND VOLTAGE SETTING
Charging-Current Accuracy
ICTL, VCTL, REFIN Input Bias
Current
ICTL = REFIN (see Equation 2)
ICTL = REFIN/32 (see Equation 2)
V VCTL = V ICTL = V REFIN = 3V
V DCIN = 0, V VCTL = V ICTL = V REFIN = 5V
-8
-55
-1
-1
+8
+55
+1
+1
%
μA
ICTL Power-Down Mode
Threshold Voltage
REFIN
/100
REFIN
/55
REFIN
/33
V
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