参数资料
型号: MAX8784ETL+T
厂商: Maxim Integrated Products
文件页数: 8/24页
文件大小: 0K
描述: IC REG STP UP W/AMP 40-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
应用: LCD 电视机/监控器
电源电压: 4 V ~ 5.5 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: 带卷 (TR)
Step-Up Regulator, Internal Charge Pumps, Switch
Control, and Operational Amplifier for TFT LCDs
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V CC = 5V, AVDD = 14V, V POUT = 28V, VGOFF = -9V, T A = +25°C, unless otherwise noted.)
TIMER-DELAY LATCH RESPONSE
TO OVERLOAD
MAX8784 toc08
I L
LX
AVDD
1.5
1.4
1.3
1.2
1.1
1.0
SWITCHING FREQUENCY vs. V CC
10ms/div
4.0
4.4
4.8
5.2
5.6
6.0
AVDD: 10V/div
LX: 10V/div
I L : 5A/div
SUP SUPPLY CURRENT
V CC (V)
POSITIVE CHARGE-PUMP REGULATOR
REFERENCE LOAD REGULATION
vs. SUP VOLTAGE
LINE REGULATION
1.2510
1.2508
1.2506
9.0
8.8
8.6
A LL OUTPUTS ENABLE D
2
1
0
1.2504
8.4
1.2502
1.2500
8.2
8.0
-1
-2
0
10
20
30
40
50
10
12
14
16
18
20
6
9
12
15
18
21
2
1
I REF ( μ A)
POSITIVE CHARGE-PUMP REGULATOR
LOAD REGULATION
2
1
V SUP (V)
NEGATIVE CHARGE-PUMP REGULATOR
LINE REGULATION
2
1
V SUP (V)
NEGATIVE CHARGE-PUMP REGULATOR
LOAD REGULATION
0
-1
0
-1
0
-1
V SUP = 16.0V
V SUP = 13.5V
-2
-2
-2
0
10
20
30
40
50
60
8
10
12
14
16
18
20
0
50
100
150
200
250
I POUT (mA)
V SUP (V)
I VGOFF (mA)
8
_______________________________________________________________________________________
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