参数资料
型号: MAX8765AETI+
厂商: Maxim Integrated Products
文件页数: 5/30页
文件大小: 0K
描述: IC BATT CHARGER MULTICHEM 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
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-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 托盘
MAX1908/MAX8724/MAX8765/MAX8765A
Low-Cost Multichemistry Battery Chargers
ELECTRICAL CHARACTERISTICS (continued)
(V DCIN = V CSSP = V CSSN = 18V, V BATT = V CSIP = V CSIN = 12V, V REFIN = 3V, V VCTL = V ICTL = 0.75 x V REFIN , CELLS = open, CLS =
REF, V BST - V LX = 4.5V, ACIN = GND = PGND = 0, C LDO = 1μF, LDO = DLOV, C REF = 1μF; 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
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
TRIP POINTS
BATT Power-Fail Threshold
BATT Power-Fail Threshold
Hysteresis
V DCIN falling, referred to V CSIN
(MAX1908/MAX8724 only)
V CSSP falling, referred to V CSIN
(MAX8765/MAX8765A only)
50
50
100
100
200
150
150
mV
mV
ACIN Threshold
ACIN Threshold Hysteresis
ACIN Input Bias Current
ACIN rising (MAX8765/MAX8765A only)
ACIN rising (MAX1908/MAX8724 only)
0.5% of REF
V ACIN = 2.048V
2.028
2.007
-1
2.048
2.048
20
2.068
2.089
+1
V
mV
μA
SWITCHING REGULATOR
DHI Off-Time
DHI Minimum Off-Time
V BATT = 16V, V DCIN = 19V,
V CELLS = V REFIN
V BATT = 16V, V DCIN = 17V,
V CELLS = V REFIN
0.36
0.24
0.4
0.28
0.44
0.33
μs
μs
DHI Maximum On-Time
DLOV Supply Current
BST Supply Current
BST Input Quiescent Current
LX Input Bias Current
LX Input Quiescent Current
DHI Maximum Duty Cycle
Minimum Discontinuous-Mode
Ripple Current
DLO low
DHI high
V DCIN = 0V, V BST = 24.5V,
V BATT = V LX = 20V
V DCIN = 28V, V BATT = V LX = 20V
V DCIN = 0V, V BATT = V LX = 20V
2.5
99
5
5
6
0.3
150
0.3
99.9
0.5
7.5
10
15
1
500
1
ms
μA
μA
μA
μA
μA
%
A
Battery Undervoltage Charge
Current
Battery Undervoltage Current
Threshold
DHI On-Resistance High
DHI On-Resistance Low
DLO On-Resistance High
DLO On-Resistance Low
V BATT = 3V per cell (RS2 = 15m ? ),
MAX1908 only, V BATT rising
CELLS = GND, MAX1908 only, V BATT rising
CELLS = open, MAX1908 only, V BATT rising
CELLS = V REFIN , MAX1908 only, V BATT rising
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
150
6.1
9.15
12.2
300
6.2
9.3
12.4
4
1
4
1
450
6.3
9.45
12.6
7
3.5
7
3.5
mA
V
?
?
?
?
Maxim Integrated
5
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