参数资料
型号: MAX8795AETJ+C7P
厂商: Maxim Integrated Products
文件页数: 13/31页
文件大小: 0K
描述: IC TFT-LCD DC/DC CONV 32-TQFN
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: 2.5 V ~ 6 V
输出数: 8
输出电压: 2.5 V ~ 18 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-TQFN-EP(5x5)
包装: 管件
TFT-LCD DC-DC Converter with
Operational Amplifiers
Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = 5V, V MAIN = 14V, V GON = 25V, V GOFF = -10V, T A = +25°C, unless otherwise noted.)
OPERATIONAL-AMPLIFIER
LOAD-TRANSIENT RESPONSE
MAX8795A toc15
A
OPERATIONAL-AMPLIFIER
LARGE-SIGNAL RESPONSE
MAX8795A toc16
V SUP = 15V
OPERATIONAL-AMPLIFIER
SMALL-SIGNAL RESPONSE
MAX8795A toc17
0V
A
A
0V
0V
+50mA
400ns/div
A: OUTPUT VOLTAGE, 1V/div, AC-COUPLED
B: OUTPUT CURRENT, 50mA/div
B
0mA
-50mA
1 μ s/div
A: INPUT SIGNAL, 5V/div
B: OUTPUT SIGNAL, 5V/div
B
0V
B
0V
400ns/div
A: INPUT SIGNAL, 100mV/div
B: OUTPUT SIGNAL, 100mV/div
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NAME
SRC
REF
AGND
PGND
OUT1
NEG1
POS1
OUT2
NEG2
POS2
BGND
POS3
OUT3
SUP
POS4
NEG4
FUNCTION
Switch Input. Source of the internal high-voltage p-channel MOSFET. Bypass SRC to PGND with a
minimum 0.1μF capacitor close to the pins.
Reference Bypass Terminal. Bypass REF to AGND with a minimum of 0.22μF close to the pins.
Analog Ground for Step-Up Regulator and Linear Regulators. Connect to power ground (PGND)
underneath the IC.
Power Ground. PGND is the source of the main step-up n-channel power MOSFET. Connect PGND to
the output-capacitor ground terminals through a short, wide PCB trace. Connect to analog ground
(AGND) underneath the IC.
Operational-Amplifier 1 Output
Operational-Amplifier 1 Inverting Input
Operational-Amplifier 1 Noninverting Input
Operational-Amplifier 2 Output
Operational-Amplifier 2 Inverting Input
Operational-Amplifier 2 Noninverting Input
Analog Ground for Operational Amplifiers. Connect to power ground (PGND) underneath the IC.
Operational-Amplifier 3 Noninverting Input
Operational-Amplifier 3 Output
Operational-Amplifier Power Input. Positive supply rail for the operational amplifiers. Typically
connected to V MAIN . Bypass SUP to BGND with a 0.1μF capacitor.
Operational-Amplifier 4 Noninverting Input
Operational-Amplifier 4 Inverting Input
______________________________________________________________________________________
13
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