51494G-D16-T [UTC]
LINEAR INTEGRATED CIRCUIT; 线性集成电路
| 型号： | 51494G-D16-T |
| 厂家： | 
Unisonic Technologies |
| 描述： | LINEAR INTEGRATED CIRCUIT |
| 文件： | 总5页 (文件大小：171K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
UNISONIC TECHNOLOGIES CO., LTD
51494
LINEAR INTEGRATED CIRCUIT
DESCRIPTION
The UTC 51494 is a monolithic bipolar integrate circuit that
provides same 494 function and built in power good signal
circuit for easy using 51494 can be easily implemented by
just adding a capacitor.
SOP-16
FEATURES
* Fully integrated with compact 16-pin dip
* All necessary functions included for most popular half bridge
circuit.
* Built-in power good delay and power fail lead function.
* Power good delay time is linearly.
* Proportional to external capacitor value.
* Reduced external components for cost down and
components for cost down and compact size.
DIP-16
ORDERING INFORMATION
Ordering Number
Package
Packing
Lead Free
Halogen Free
51494G-S16-R
51494G-S16-T
51494G-D16-T
51494L-S16-R
51494L-S16-T
51494L-D16-T
SOP-16
SOP-16
DIP-16
Tape Reel
Tube
Tube
www.unisonic.com.tw
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Copyright © 2012 Unisonic Technologies Co., LTD
QW-R103-005.Ba
51494
LINEAR INTEGRATED CIRCUIT
PIN ASSIGNMENT
EA1+
EA1-
1
2
3
4
5
6
7
8
16
EA2+
15
14
EA2-
VREF
P.G.
EA0
DT
13
12
11
10
9
CT
RT
VCC
C2
GND
C1
CPG
GND
PIN
1
NAME
FUNCTION
EA1+ Error amplifier noninverting input, same as pin 1 of 494
EA1- Error amplifier inverting input, same as pin 2 of 494
2
3
EA0
DT
Error amplifier output and feedback, same as pin 3 of 494
4
Dead time control input, same as pin 4 of 494
5
CT
Connect capacitor to oscillator circuit for operating frequency, same as pin 5 of 494
Connect resistor to oscillator circuit for operating frequency, same as pin 6 of 494
6
RT
7
GND Ground terminal of IC, same as pin 7 of 494
C1 Collector of output transistor one, same as pin 8 of 494
GND Ground terminal of IC
8
9
10
11
12
13
14
15
16
CPG
C2
Terminal for capacitor to determine power good delay time
Collector of output transistor two, same as pin 11 of 494
Supply voltage, same as pin 12 of 494
VCC
P.G.
VREF
Output for power good signal
Reference voltage output, same as pin 14 of 494
EA2- Error amplifier inverting input, same as pin 15 of 494
EA+ Error amplifier noninverting input, same as pin 16 of 494
UNISONIC TECHNOLOGIES CO., LTD
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QW-R103-005.Ba
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51494
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
12
VCC
Reference
Regulator
14
7
Ref Out
GND
C1
8
TF.E
C2
11
RT
CT
6
5
GND
9
Osc
Dead Time
COMPARATOR
+
-
Dead-Time
Control
4
+
-
PWM
EA1
EA2
1
2
Non-inv Input
Inv Input
+
-
COMPARATOR
16
15
Non Inv Input
Inv Input
+
-
P.G.
3
13
-
Feed-Back
+
1.25V
10
CPG
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QW-R103-005.Ba
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51494
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(Unless otherwise specified, all is over operating free-air temperature Range)
CHARACTERISTIC
SYMBOL
VCC
RATING
42
UNIT
V
Supply Voltage
Voltage from any pin to ground (except pin8 & pin11)
Collector Output Voltage
Peak Collector Output
VIN
VCC +0.3
42
V
VC1, VC2
IC1, IC2
PD
V
250
mA
mW
℃
Power Dissipation
1500
Operating Temperature
TOPR
TSTG
0 ~ +70
-40 ~ +150
125
Storage Temperature
℃
Junction Temperature
TJ
℃
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA=0~70℃, VCC=15V, f=10kHz)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
REFERENCE SECTION
Reference Voltage
VREF IREF =1.0mA
4.75
5
2
5.25
25
V
Line Regulation
VLINE 7V<VCC<40V
VILOAD 1mA<IREF<5mA
0℃ <FA<70℃
mV
mV
Load Regulation
1
15
Temperature Coefficient
OSCILLATOR SECTION
Oscillator Frequency
0.01
0.03 %/℃
FOSC CT=0.01μF, RT=12kΩ
ΔfOSC CT=0.01μF, RT=12kΩ
10
kHz
Oscillator Frequency Change Over
Operating Temperature Range
DEAD TIME CONTROL SECTION
Input Bias Current ( Pin 4)
2
%
IIB(DT) VCC =15V, 0V<V4<5.25V
-2
3
-10
45
μA
VCC = 15V, Pin 4 = 0V
DC(MAX)
Maximum Duty Cycle, Each Output
43
0
%
Output Control Pin = VREF
Zero Duty
Max Duty
3.3
Input Threshold Voltage
VTH
V
ERROR AMPLIFIER SECTION
Input Offset Voltage
VICS
IICS
IIB
V3=2.5V
2
10
250
1
mV
nA
μA
V
Input Offset Current
V3=2.5V
25
0.2
Input Bias Current
V3=2.5V
Input Common-mode Voltage Range
Large Signal Open-Loop Voltage Range
Unity-Gain Band width
VICR
GVO
fC
7V <VCC< 40V
0.5V < V3 < 3.5V
-0.3
60
VCC
74
dB
kHz
650
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51494
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
OUTPUT SECTION
Collector Off-State Current
Emitter Off-State Current
IC(OFF) VCC=VC=40V,VE=0
IE(OFF) VCC=VC=40V,VE=0
2
1.1
6
100
-100
1.3
μA
μA
V
Output Saturation Voltage Common-Emitter VCE(SAT) VE=15V, LC=200mA
OUTPUT CONTROL (pin13)
Standby Power Supply Current
Output AC Characteristic
Raise Time Common-Emitter
Fall Time Common-Emitter
PWM COMPARATOR SECTION
Inhibit Threshold Voltage
Output Source Current
ICC
10
mA
TR
TR
100
25
200
100
ns
ns
VTHI
IO+
IO-
Zero Duty cycle
0.5V < V3 < 3.5V
0.5V < V3 < 3.5V
4
4.5
V
2
mA
mA
Output Sink Current
-0.2
-0.6
POWER GOOD SECTION
CD = 1μF
CD = 0.47μF
230
108
280
130
4
330
160
Power Good Delay Time
tPD
ms
Power Fail Lead Time
Output High Voltage
TP1
VOH
VSAT
IOH
ms
V
VPINN = 5V, IL = 1mA
4.75
Output Saturation Voltage
Output Leakage Current
VPINN = 5V, ISINK = 4mA
0.4
V
100
μA
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all UTC products described or contained herein.
UTC products are not designed for use in life support appliances, devices or systems where malfunction
of these products can be reasonably expected to result in personal injury. Reproduction in whole or in
part is prohibited without the prior written consent of the copyright owner. The information presented in
this document does not form part of any quotation or contract, is believed to be accurate and reliable
and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
5 of 5
QW-R103-005.Ba
www.unisonic.com.tw
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