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参数资料
| 型号： | TL494MJB |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.25 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, CDIP16 |
| 封装： | CERAMIC, DIP-16 |
| 文件页数： | 12/21页 |
| 文件大小： | 620K |
| 代理商： | TL494MJB |
www.ti.com
GND
VCC
Reference
Regulator
C1
Pulse-Steering
Flip-Flop
C1
1D
DTC
CT
RT
PWM
Comparator
+
Error Amplifier 1
≈ 0.1 V
Dead-Time Control
Comparator
Oscillator
OUTPUT CTRL
(see Function Table)
0.7 mA
E1
C2
E2
+
Error Amplifier 2
1IN+
1IN
2IN+
2IN
FEEDBACK
REF
6
5
4
1
2
16
15
3
13
8
9
11
10
12
14
7
Q1
Q2
≈ 0.7 V
TL494
PULSE-WIDTH-MODULATION CONTROL CIRCUITS
SLVS074E – JANUARY 1983 – REVISED FEBRUARY 2005
FUNCTION TABLE
INPUT TO
OUTPUT FUNCTION
OUTPUT CTRL
VI = GND
Single-ended or parallel output
VI = Vref
Normal push-pull operation
FUNCTIONAL BLOCK DIAGRAM
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| TL494N | 制造商:HTC 制造商全称:HTC Korea TAEJIN Technology Co. 功能描述:Pulse-Width-Modulation Control Circuits |
| TL494NS | 制造商:TI 制造商全称:Texas Instruments 功能描述:PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| TL494PW | 制造商:TI 制造商全称:Texas Instruments 功能描述:PULSE-WIDTH-MODULATION CONTROL CIRCUITS |
| TL494-S16-R | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:VOLTAGE MODE PWM CONTROL CIRCUIT |
| TL494-S16-T | 制造商:UTC-IC 制造商全称:UTC-IC 功能描述:VOLTAGE MODE PWM CONTROL CIRCUIT |
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