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参数资料
| 型号： | APW7078XI-TR |
| 厂商： | Anpec Electronics Corporation |
| 英文描述： | Single PWM Switching Controller |
| 中文描述： | 单PWM开关控制器 |
| 文件页数： | 4/16页 |
| 文件大小： | 400K |
| 代理商： | APW7078XI-TR |
C opyright
ANPEC Electronics C orp.
Rev. A.3 - Nov., 2005
APW 7078
www.anpec.com.tw
4
Electrical Characteristics ( Cont.)
(T
A
= 25
°
C, V
DD
= 3.3V, unless otherwise specified)
APW7078
Symbol
Parameter
Test Conditions
Min
Typ
Max
Unit
PWM Controller Driver
I
SOURCE
Output Source Current
Duty<5%, OUT=0V
-150
-200
mA
I
SINK
Control Block
Output Sink Current
Duty>5%, OUT=5V
150
200
mA
V
IL
Active mode
0.2V
DD
V
IH
Control Voltage
Switch-off mode
0.8V
DD
Function Pin Description
Pin No.
Symbol
I/O
Description
1
INV
I
Internal 0.5V reference voltage. Use a resistor divider to set the
output voltage.
Soft-start and short-circuit detection, connects a capacitor from the
pin to ground.
Power supply input pin for IC voltage.
Output control pin. Low = operating mode; High = shutdown mode.
External MOSFET driving pin.
Ground pins of the IC.
Setting capacitor and resister to provide oscillation switching
frequency adjustment.
Error amplifier output pin. Setting circuit for IC compensation.
2
SCP
-
3
4
5
6
VDD
CTL
OUT
GND
-
I
O
-
7
OSC
-
8
FB
O
Application S chematic
1
2
3
4
8
7
6
5
INV
SCP
VDD
CTL
FB
OSC
GND
OUT
C3
270pF
R4
3.3K
C4
0.1uF
R5
1K
Q1
APM2300A
820K
R3
R2
91K
10uH
L1
D1
SS12
C5
47uF
VOUT
5V
300mA
C2
0.1uF
C1
22uF
VIN
2.5V~4.2V
C7
1uF
Cp
33pF
C6
0.1uF
Fig1: APW7078 Step-up Application for Adjust Voltage
R1
390K
Q2
2N7002
*R2
100K
is recommended
相关PDF资料 |
PDF描述 |
|---|---|
| APW7078XI-TRL | Single PWM Switching Controller |
| APW7078XI-TU | Single PWM Switching Controller |
| APW7078XI-TUL | Single PWM Switching Controller |
| APW7093NI-TR | 3A, 1MHz, Step Down DC/DC Regulator |
| APW7093NI-TRL | 3A, 1MHz, Step Down DC/DC Regulator |
相关代理商/技术参数 |
参数描述 |
|---|---|
| APW7078XI-TRL | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Single PWM Switching Controller |
| APW7078XI-TU | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Single PWM Switching Controller |
| APW7078XI-TUL | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Single PWM Switching Controller |
| APW7079 | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Low-Supply-Current Synchronous Step-up DC-DC Converter |
| APW7079_09 | 制造商:ANPEC 制造商全称:Anpec Electronics Coropration 功能描述:Low-Supply-Current Synchronous Step-up DC-DC Converter |
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