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參數(shù)資料
| 型號： | NTE1729 |
| 廠商： | NTE Electronics, Inc. |
| 英文描述： | Quadruple Operational Amplifier 14-SO 0 to 70 |
| 中文描述： | 集成電路脈沖寬度調(diào)制（PWM）控制電路 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大?。?/td> | 30K |
| 代理商： | NTE1729 |
NTE1729
Integrated Circuit
Pulse Width Modulator (PWM) Control Circuit
Description:
The NTE1729 is an inverter control unit in a 16–Lead DIP type package which provides all the control
circuitry for PWM type switching regulators. Included in this device is the voltage reference, dual error
amplifiers, oscillator, pulse width modulator, pulse steering flip flop, dual alternating output switches,
and dead time control.
Features:
Complete PWM Power Control Circuit
Adjustable Dead Time: 0 to 100%
No Double Pulsing of Same Output during Load Transient Condition
Dual Error Amplifiers have Wide Common Mode Input Voltage Capability: –0.3V to V
CC
–2V
Circuit Architecture Provides Easy Synchronization
Uncommitted Outputs for 250mA Sink or Source
With Miss–Operation Prevention Circuit for Low Level Supply Voltage
Absolute Maximum Ratings:
(T
A
= +25
°
C unless otherwise specified)
Supply Voltage, V
CC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Error Amplifier Input Voltage, V
ICM
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output Voltage, V
CER
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total Power Dissipation (T
A
= +25
°
C), P
T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
41V
V
CC
+0.3V
41V
1000mW
–20
°
to +85
°
C
–65
°
to +150
°
C
Recommended Operating Conditions:
Parameter
Symbol
V
CC
V
CER
I
C
I
OAMP
C
T
R
T
f
osc
T
opt
Min
7
–0.3
–
–
0.47
1.8
1
–20
Typ
–
–
–
–
–
–
–
–
Max
40
40
200
–0.3
10000
500
300
+70
Unit
V
V
mA
mA
nF
k
kHz
°
C
Supply Voltage
Output Voltage
Output Current
Error Amplifier Sink Current
Timing Capacitor
Timing Resistance
Oscillation Frequency
Operating Temperature
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