参数资料
型号: MAX17085GTL+
厂商: Maxim Integrated Products
文件页数: 12/38页
文件大小: 0K
描述: IC CHARGER/CTLR/LDO REG 40-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 50
功能: 充电管理
电池化学: 多化学
电源电压: 4.5 V ~ 24 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(5x5)
包装: 托盘
Integrated Charger, Dual Main Step-Down
Controllers, and Dual LDO Regulators
Typical Operating Characteristics
(Circuit of Figure 1, V ADP = V SYS = 20V, V BATT = 16.8V, V LDO5 = V CC = 5V, V LDO3 = 3.3V, T A = +25°C, unless otherwise noted.)
IINP ERROR vs. SYSTEM CURRENT
(DC SWEEP)
CHARGER-CURRENT ERROR
vs. BATTERY VOLTAGE
CHARGER CURRENT
vs. ISET SETTING (ANALOG)
0
-1
-2
-3
-4
-5
-6
-7
-8
V ADAPTER = 19V
ADAPTER ABSENT, V BATTERY = 13V
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
I CHARGER = 5A
I CHARGER = 4A
I CHARGER = 3A
9
8
7
6
5
4
3
2
2-CELL
4-CELL
3-CELL
-9
-10
0
10
20
30
40
50
60
70
80
-0.2
-0.3
4.5
5.5
6.5
7.5
8.5
9.5 10.5 11.5 12.5
1
0
V ADAPTER = 19V
4A INPUT CURRENT LIMIT
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
7
V CSSP - V CSSN (mV)
CHARGER CURRENT
vs. ISET SETTING (PWM)
7
BATTERY VOLTAGE (V)
CHARGER-VOLTAGE PER CELL
vs. VCTL VOLTAGE
0.35
ISET VOLTAGE (V)
CHARGER-VOLTAGE ERROR
vs. CELL VOLTAGE
6
5
4
6
5
4
0.33
0.31
0.29
0.27
2-CELL
3-CELL
0.25
3
3
0.23
2
1
0
V ADAPTER = 19V
3-CELL BATTERY
RS2 = 10m I
4A INPUT CURRENT LIMIT
2
1
0
V ADAPTER = 19V
3-CELL BATTERY
RS2 = 10m I
0.21
0.19
0.17
0.15
4-CELL
0
10 20 30 40 50 60 70 80 90 100
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
3.0
3.2
3.4
3.6
3.8
4.0
4.2
4.4
ISET DUTY CYCLE (%)
CHARGER SWITCHING FREQUENCY
vs. BATTERY VOLTAGE
VCTL VOLTAGE (V)
CHARGER VOLTAGE ERROR
vs. CHARGER CURRENT
CELL VOLTAGE (V)
BATTERY REMOVAL (V BATT = 3V)
1.6
1.4
1.2
1.0
0.25
0.20
0.15
2-CELL
27.5V
19V
MAX17085B toc09
PDSL
5V/div
DCIN
5V/div
V BATT
5V/div
0.8
3-CELL
0.6
0.10
0V
0.4
0.2
0
V ADAPTER = 19V
I CHARGER = 3A
3-CELL BATTERY
0.05
0
4-CELL
V ADAPTER = 19V
4A INPUT CURRENT LIMIT
0A
3-CELL BATTERY
IL CHG
2A/div
3
6
9
12
15
0
1
2
3
4
5
6
100μs/div
BATTERY VOLTAGE (V)
CHARGER CURRENT (A)
12
_____________________________________________________________________________________
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