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参数资料
| 型号： | MAX8795AGCJ+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 13/31页 |
| 文件大小： | 0K |
| 描述： | IC CONV DC-DC TFT-LCD 32LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,000 |
| 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 ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 32-LQFP |
| 供应商设备封装： | 32-LQFP（7x7） |
| 包装： | 带卷 (TR) |
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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
______________________________________________________________________________________
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