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參數(shù)資料
| 型號(hào)： | AZ494CP-E1 |
| 廠商： | BCD SEMICONDUCTOR MANUFACTURING LTD |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| 中文描述： | 0.25 A SWITCHING CONTROLLER, 200 kHz SWITCHING FREQ-MAX, DIP16 |
| 封裝： | ROHS COMPLIANT, DIP-16 |
| 文件頁數(shù)： | 2/13頁 |
| 文件大?。?/td> | 197K |
| 代理商： | AZ494CP-E1 |
PULSE-WIDTH-MODULATION CONTROL CIRCUITS AZ494A/C
Data Sheet
2
Apr. 2006 Rev. 1. 2
BCD Semiconductor Manufacturing Limited
Figure 2. Pin Configuration of AZ494A/C (Top View)
Figure 3. Functional Block Diagram of AZ494A/C
M/P Package
(SOIC-16/DIP-16)
1IN +
1IN -
FEEDBACK
DTC
CT
RT
GND
C1
2IN +
2IN -
REF
OUTPUT CTRL
V
CC
C2
E2
E1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Configuration
Functional Block Diagram
Signal for Output Control
Output Function
V
I
= GND
Single-ended or parallel output
V
I
= V
REF
Normal push-pull operation
Output Function Control Table
Oscillator
0.12V
5
6
CT
RT
4
DTC
1IN +
1IN -
2IN +
2IN -
1
2
16
15
Error Amplifier 1
Error Amplifier 2
+
Dead-Time Control
Comparator
D
CK
3
FEEDBACK
PWM
Comparator
Pulse-Steering
Flip-Flop
OUTPUT CTRL
13
Reference
Regulator
Q1
Q2
12
10
11
9
8
C1
E1
C2
E2
V
CC
REF
GND
14
7
0.7mA
+
+
+
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