参数资料
型号: MAX8725ETI+
厂商: Maxim Integrated Products
文件页数: 9/30页
文件大小: 0K
描述: IC CHARGER BATTERY 28-TQFN
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
Multichemistry Battery Chargers with Automatic
System Power Selector
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, V DCIN = V CSSP = V CSSN = 18V, V BATT = V CSIP = V CSIN = 12V, V VCTL = V ICTL = 1.8V, MODE = float, ACIN = 0, CLS =
REF, GND = PGND = 0, PKPRES = GND, LDO = DLOV, T A = -40°C to +85°C , unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
MODE Input High Voltage
ACOK AND PKPRES
2.8
V
ACOK Input Voltage Range
0
28
V
ACOK Sink Current
V ACOK = 0.4V, ACIN = 1.5V
1
mA
PKPRES Input Voltage Range
0
LDO
V
PKPRES Battery Removal Detect
Threshold
MAX8725, PKPRES rising
55
% of
LDO
PDS, PDL SWITCH CONTROL
PDS Switch Turn-Off Threshold
PDS Switch Threshold Hysteresis
PDS Output Low Voltage, PDS
Below SRC
PDS Turn-On Current
PDS Turn-Off Current
PDL Switch Turn-On Threshold
PDL Switch Threshold Hysteresis
PDL Turn-On Resistance
V DCIN - V BATT , V DCIN falling
V DCIN - V BATT
I PDS = 0A
PDS = SRC
V PDS = V SRC - 2V, V DCIN = 16V
V DCIN - V BATT , V DCIN falling
V DCIN - V BATT
PDL = GND
50
100
8
6
10
50
100
50
150
300
12
150
300
150
mV
mV
V
mA
mA
mV
mV
k Ω
PDL Turn-Off Current
SRC Input Bias Current
V SRC - V PDL = 1.5V
SRC = 19, V BATT = 16V
6
1000
mA
μA
Note 1: Guaranteed by design. Not production tested.
Typical Operating Characteristics
(Circuit of Figure 2, V DCIN = 20V, charge current = 3A, 4 Li+ series cells, T A = +25°C, unless otherwise noted.)
BATTERY INSERTION
AND REMOVAL RESPONSE
SYSTEM LOAD-TRANSIENT RESPONSE
V CCV
MAX1909/MAX8725 toc01
17V
V BATT
16V
5A/div
I BATT
0A
I IN
0A 5A/div
MAX1909/MAX8725 toc02
5A
I SYSTEMLOAD
0A
5A
I IN
0A
5A I BATT
0A
V CCV
3V
CCS
3V
V CCI
V CCI
V CCV
V CCI
2V
1V
0V
V CCI , V CCV
CCI
2V
V CCI
1V
V CCS
0V
500 μ s/div
100 μ s/div
_______________________________________________________________________________________
9
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