参数资料
型号: MAX17075ETG+T
厂商: Maxim Integrated Products
文件页数: 12/23页
文件大小: 0K
描述: IC DC-DC CONV W/CHRG PUMP 24TQFN
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
电流 - 电源: 4mA
电源电压: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-WFQFN 裸露焊盘
供应商设备封装: 24-TQFN-EP(4x4)
包装: 带卷 (TR)
MAX17075
Boost Regulator with Integrated Charge Pumps,
Switch Control, and High-Current Op Amp
V VCC
POS
SUP
LX
V AVDD
BOOST
NEG
OUT
BGND
SRC
CONTROLLER
PGND
FB
COMP
DEL
V GON
COM
SWITCH
CONTROL
MAX17075
V VCC
CTL
FROM TCON
DRN
OSC
RSTIN
V VCC
VCC
SEQUENCE
RST
REF
REF
V AVDD
AGND
FBN
NEGATIVE
POSITIVE
DRVP
V GOFF
DRVN
CHARGE
PUMP
CHARGE
PUMP
FBP
POUT
SUP
V AVDD
Figure 2. Functional Diagram
Detailed Description
The MAX17075 contains a step-up switching regulator
to generate the source driver supply, and two charge-
pump regulators to generate the gate-driver supplies.
Each regulator features adjustable output voltage, digi-
tal soft-start, and timer-delayed fault protection. The
step-up regulator uses fixed-frequency current-mode
control architecture. The MAX17075 also includes one
12
high-performance operational amplifier designed to
drive the LCD backplane (VCOM). The amplifier fea-
tures high output current, fast slew rate (45V/μs), wide
bandwidth (20MHz), and rail-to-rail outputs. In addition,
the MAX17075 features a high-voltage switch-control
block, a 1.25V reference output, well-defined power-up
and power-down sequences, and thermal-overload
protection. Figure 2 shows the MAX17075 functional
block diagram.
Maxim Integrated
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