参数资料
型号: MAX8753ETI+
厂商: Maxim Integrated Products
文件页数: 10/20页
文件大小: 0K
描述: IC DC-DC CONV TFT LCD 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 60
应用: 转换器,TFT,LCD
输入电压: 2.6 V ~ 5.5 V
输出数: 4
输出电压: 2.6 V ~ 13 V
工作温度: 0°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: 管件
TFT LCD DC-DC Converter with
Integrated Charge Pumps
V IN
+2.6V TO +5.5V
L1
6.8 μ H
D1
V MAIN
+9V, 140mA
C IN
10 μ F
C INTG
470pF
6
21
1
0.1 μ F
R1
174k ?
C MAIN1
10 μ F
0.1 μ F
V MAIN
11
16
17
19
IN
I.C.
I.C.
SUPN
PGND
GND
FB
22
13
7
C3
0.1 μ F
R2
28k ?
D2
R COMP
20k ?
C COMP
1nF
FBN
REF
V LOGIC
+2.5V, 300mA
C LOGIC
10 μ F
0.1 μ F
C DLP
0.1 μ F
25
26
10
9
24
SHDN
LCDON
OUTL
FBL
DLP
MAX8753
C3P 18
15
14
5
OUTP
C4
0.1 μ F
D3
R4
19.1k ?
R3
215k ?
C5
0.1 μ F
C REF
0.22 μ F
V NEG
-11V, 10mA
C NEG
1 μ F
V POS
+24V, 10mA
2
12
N.C.
N.C.
FBP
8
R5
46.4k ?
C POS
1 μ F
R6
27
28
3
4
25.5k ?
C1
0.1 μ F
Figure 1. Typical Operating Circuit
Typical Operating Circuit
C2
0.1 μ F
Table 1. Critical Component List
The MAX8753 typical application circuit (Figure 1) gen-
erates a +2.5V logic supply, a +9V source driver sup-
ply, and +24V and -11V gate-driver supplies for TFT
displays. The input voltage range for the IC is from
+2.6V to +5.5V.
Table 1 lists the recommended components and Table 2
DESIGNATION
C IN , C LOGIC
C MAIN
DESCRIPTION
10μF, 6.3V X5R ceramic capacitors (0603)
TDK C1608X5R0J106M
10μF ±20%, 16V X5R ceramic capacitor
(1210)
lists the contact information for component suppliers.
D1
D2, D3
L1
Taiyo Yuden EMK325 BJ106KD
3A, 30V Schottky diode (M-flat)
Toshiba CMS02
200mA, 100V, dual ultra-fast diodes
(SOT23)
Fairchild MMBD4148SE
6.8μH, 1.0A inductor
Sumida CDH38D09HP
10
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