参数资料
型号: MAX8819CETI+T
厂商: Maxim Integrated Products
文件页数: 12/29页
文件大小: 0K
描述: IC PMIC W/INT CHARGER 28TQFN-EP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: 手持/移动设备
电源电压: 4.1 V ~ 5.5 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(4x4)
包装: 带卷 (TR)
PMIC with Integrated Chargers and Smart
Power Selector in a 4mm x 4mm TQFN
Typical Operating Characteristics (continued)
(Circuit of Figure 1, T A = +25°C, unless otherwise noted.)
LED EFFICIENCY
100
95
LED EFFICIENCY vs. SYS VOLTAGE
100
90
vs. LED CURRENT (6 LEDS)
90
85
80
75
70
65
6 LEDS
4 LEDS
80
70
60
50
40
30
60
55
50
I LED = 25mA
INDUCTOR: TOKO 1096AS-100M
DIODE: NXP PMEG3005EB
20
10
0
V SYS = 3.6V
2.5
3.0
3.5 4.0 4.5
5.0
5.5
0
5
10 15
20
25
SYS VOLTAGE (V)
LED CURRENT (mA)
100
90
LED EFFICIENCY
vs. LED CURRENT (4 LEDS)
100
95
LED AND BOOST EFFICIENCY
vs. SYS VOLTAGE
300
REG4 INPUT CURRENT
vs. SYS VOLTAGE
80
70
60
50
40
90
85
80
75
70
BOOST
LED
250
200
150
30
20
10
V SYS = 3.6V
65
60
55
I LED = 25mA
6 LEDS
INDUCTOR: TOKO 1096AS-100M
DIODE: NXP PMEG3005EB
100
50
6 LEDS, I LED = 25mA
0
50
0
0
5
10 15
20
25
2.5
3.0
3.5 4.0 4.5
5.0
5.5
2.5
3.0
3.5 4.0 4.5
5.0
5.5
LED CURRENT (mA)
REG4 STARTUP AND SHUTDOWN
RESPONSE
MAX8819A toc33
SYS VOLTAGE (V)
500
FB4 VOLTAGE vs. LED CURRENT
SYS VOLTAGE (V)
V EN4
V OVP4
I LED
2V/div
10V/div
0V
10mA/div
0mA
450
400
350
300
250
200
150
100
50
0
2ms/div
0
5
10 15
20
25
LED CURRENT (mA)
12
______________________________________________________________________________________
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