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參數(shù)資料
| 型號： | KIA494AP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.25 A SWITCHING CONTROLLER, 300 kHz SWITCHING FREQ-MAX, DIP16 |
| 封裝： | DIP-16 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大小： | 110K |
| 代理商： | KIA494AP |
1999. 2. 20
1/6
SEMICONDUCTOR
TECHNICAL DATA
KIA494AP/AF
BIPOLAR LINEAR INTEGRATED CIRCUIT
Revision No : 0
Voltage-Mode PWM Controller IC
The KIA494AP/AF incorporates on a single monolithic chip all
the functions required in the construction of a pulse-width- modulation
control circuit. Designed primarily for power supply control, this device
offers the systems engineer the flexibility to tailor the power supply control
circuitry to a specific application.
The KIA494AP/AF contains two error amplifiers, an on-chip adjustable
oscillator, a dead-tme control(DTC) comparator, a pulse-steering control
flip-flop, a 5-V, 5%-precision requlator, and output-control circuits.
The error amplifiers exhibit a common-mode voltage range from -0.3V
to V
CC
-2V. The dead-time control comparator has a fixed offset that
provides approximately 5% dead time.
The on-chip oscillator may be bypassed by terminating RT to the
reference output and providing a sawtooth input to CT, or it may drive
the common circuits in synchronous multiple-rail power supplies.
The uncommitted output transistors provide either common- emitter or
emitter-follower output capability. The KIA494AP/AF provides for push-
pull or single-ended output operation, which may be selected through
the output-control function.
The architecture of this device prohibits the possibility of either output
being pulsed twice during push-pull operation.
FEATURES
Completed PWM Power Control Circuitry.
Uncommitted Outputs for 200mA Sink or Source Current.
Output Control Selects Single-Ended or Push-Pull Operation.
Internal Circuitry Prohibits Double Pulse at Either Output.
Variable Dead Time Provides Control Over Total Range.
Internal Regulator Provides a Stable 5V Reference Supply With 5% Tolerance.
Circuit Architecture Allows Easy Synchronization.
16
9
1
8
Θ
DIP-16
A
B
d
P
D
H
L
W
T
G
DIM MILLIMETERS
A
19.3 0.2
B
D
d
T
P
G
H
L
3.8+
0 - 15
1.52+
0.46 0.1
+
W
Θ
6.45 0.2
+
0.50 MIN
3.3+
2.54
0.25+0.1/-0.05
7.62
+
MAXIMUM RATINGS (Ta=25
)
FLP-16
L
1
8
9
16
B
P
D
H
A
G
T
B
0.20+0.1/-0.05
P
T
1.27
MILLIMETERS
9.88 0.2
+
0.4 0.1
0.15+0.1/-0.05
+
B2
D
G
H
L
A
B1
DIM
6.00 0.3
+
+
1.63 0.2
0.65+
3.94+
ITEM
SYMBOL
RATING
UNIT
Supply Voltage
V
CC
41
V
Error Amplifier Input Voltage
V
IN
V
CC
+0.3
V
Collector Output Voltage
V
O
41
V
Collector Output Current
I
O
250
mA
Power
Consumption
KIA494AP
P
D
750
mW
KIA494AF
400
Operating Temperature
T
opr
-40
85
Storage Temperature
T
stg
-65
150
INPUT TO
OUTPUT CTRL
OUTPUT FUNCTION
V
I
=GND
Single-ended or paralled output
V
I
=V
ref
Normal push-pull operation
FUNCTION TABLE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KIA494APV | 制造商:KEC 制造商全稱:KEC(Korea Electronics) 功能描述:BIPOLAR LINEAR INTEGRATED CIRCUIT (GENERAL PURPOSE SWITCHING REGULATOR) |
| KIA50N06 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:three-terminal silicon device with current conduction capability of about 50A, |
| KIA555F | 制造商:KEC 制造商全稱:KEC(Korea Electronics) 功能描述:BIPOLAR LINEAR INTEGRATED CIRCUIT (TIMER) |
| KIA555P | 制造商:KEC 制造商全稱:KEC(Korea Electronics) 功能描述:BIPOLAR LINEAR INTEGRATED CIRCUIT (TIMER) |
| KIA578R000FP | 制造商:KEC 制造商全稱:KEC(Korea Electronics) 功能描述:BIPOLAR LINEAR INTEGRATED CIRCUIT |
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