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| 型号： | MAX1757EAI+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/17页 |
| 文件大小： | 0K |
| 描述： | IC BATTERY CHRG LI+ 28-SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 功能： | 充电管理 |
| 电池化学： | 锂离子（Li-Ion）、锂聚合物（Li-Pol） |
| 电源电压： | 6 V ~ 14 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
MAX1757
Stand-Alone, Switch-Mode
Li+ Battery Charger with Internal 14V Switch
ABSOLUTE MAXIMUM RATINGS
BATT, CS, DCIN, CSSP, CSSN, HSD to GND ........-0.3V to +15V
CSSP to CSSN.......................................................-0.6V to +0.6V
BST to GND ............................................................-0.3V to +21V
BST to LX..................................................................-0.3V to +6V
LX to PGND ..............................................-0.6V to (V HSD + 0.3V)
VL, SHDN , ISETIN, ISETOUT, REF, VADJ, CELL, TIMER1,
TIMER2, CCI, CCS, CCV, THM to GND ................-0.3V to +6V
FASTCHG , FULLCHG , FAULT to GND ..................-0.3V to +30V
PGND to GND .......................................................-0.3V to +0.3V
VL Source Current...............................................................50mA
Continuous Power Dissipation (T A = +70°C)
28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mW
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
CS to BATT Current ............................................................±3.5A
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V DCIN = V HSD = V CSSP = V CSSN = 12V, V SHDN = V VL , V CELL = GND, V BATT = V CS = 4.2V, V VADJ = V REF /2,
V ISETIN = V ISETOUT = V REF , R THM = 10k Ω , 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
SUPPLY AND REFERENCE
DCIN Input Voltage Range
6
14
V
DCIN Quiescent Supply Current
6V < V DCIN < 14V
5
7
mA
DCIN to BATT Dropout
Threshold, DCIN Falling
DCIN to BATT Dropout
Threshold, DCIN Rising
VL Output Voltage
VL Output Load Regulation
Falling edge
Rising edge
6V < V DCIN < 14V
I VL = 0 to 15mA
0.075
0.20
5.10
0.125
0.30
5.40
44
0.175
0.40
5.70
65
V
V
V
mV
REF Output Voltage
REF Line Regulation
REF Load Regulation
V REF
6V < V DCIN < 14V
6V < V DCIN < 14V
I REF = 0 to 1mA
4.179
4.20
2
6
4.221
6
14
V
mV
mV
SWITCHING REGULATOR
PWM Oscillator Frequency
LX Maximum Duty Cycle
CSSN/CSSP Off-State Leakage
HSD Off-State Leakage
LX Off-State Leakage
HSD to LX On-Resistance
LX to PGND On-Resistance
CS to BATT Current-Sensing
Resistance
f OSC
R CS
Nondropout f OSC
In dropout, f OSC / 4
V CSSN = V CSSP = V DCIN = 14V, V SHDN = GND
V LX = PGND, V HSD = V DCIN = 14V,
V SHDN = GND
V LX = V HSD = V DCIN =14V, V SHDN = GND
V BST = V LX + 4.5V
See PWM Controller section
Internal resistor between CS and BATT,
1.5A RMS operating
270
97
300
98
2
0.1
0.1
150
1
110
330
10
10
10
250
2
170
kHz
%
μA
μA
μA
m Ω
Ω
m Ω
V SHDN = GND, V BATT =14V
0.1
5
μA
BATT, CS Input Current
CELL = REF, V BATT = 12V, any charging state
V BATT = 14V, done state
280
150
540
270
μA
μA
2
Maxim Integrated
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