Datasheet

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
Lead Free
51494L-S16-R
51494L-S16-T
51494L-D16-T
Halogen Free
51494G-S16-R
51494G-S16-T
51494G-D16-T
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., LTD
Package
Packing
SOP-16
SOP-16
DIP-16
Tape Reel
Tube
Tube
1 of 5
QW-R103-005.Ba
51494
„
LINEAR INTEGRATED CIRCUIT
PIN ASSIGNMENT
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NAME
EA1+
EA1EA0
DT
CT
RT
GND
C1
GND
CPG
C2
VCC
P.G.
VREF
EA2EA+
EA1+
1
16
EA2+
EA1-
2
15
EA2-
EA0
3
14
VREF
DT
4
13
P.G.
CT
5
12
VCC
RT
6
11
C2
GND
7
10
CPG
C1
8
9
GND
FUNCTION
Error amplifier noninverting input, same as pin 1 of 494
Error amplifier inverting input, same as pin 2 of 494
Error amplifier output and feedback, same as pin 3 of 494
Dead time control input, same as pin 4 of 494
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
Ground terminal of IC, same as pin 7 of 494
Collector of output transistor one, same as pin 8 of 494
Ground terminal of IC
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
Output for power good signal
Reference voltage output, same as pin 14 of 494
Error amplifier inverting input, same as pin 15 of 494
Error amplifier noninverting input, same as pin 16 of 494
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 5
QW-R103-005.Ba
51494
„
LINEAR INTEGRATED CIRCUIT
BLOCK DIAGRAM
VCC
12
Ref Out
14
GND
7
Reference
Regulator
C1
8
TF.E
C2
11
RT
CT
Dead-Time
Control
6
Osc
5
+
4
GND
9
Dead Time
COMPARATOR
-
+
-
EA1
Non-inv Input
1
Inv Input
2
-
Non Inv Input
16
+
Inv Input
15
Feed-Back
3
+
PWM
COMPARATOR
EA2
-
P.G.
-
13
+
1.25V
10
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
CPG
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51494
„
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
(Unless otherwise specified, all is over operating free-air temperature Range)
CHARACTERISTIC
SYMBOL
RATING
Supply Voltage
VCC
42
Voltage from any pin to ground (except pin8 & pin11)
VIN
VCC +0.3
Collector Output Voltage
VC1, VC2
42
Peak Collector Output
IC1, IC2
250
Power Dissipation
PD
1500
Operating Temperature
TOPR
0 ~ +70
Storage Temperature
TSTG
-40 ~ +150
Junction Temperature
TJ
125
Note: 1. Absolute maximum ratings are those values beyond which the device could be permanently
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
„
UNIT
V
V
V
mA
mW
℃
℃
℃
damaged.
ELECTRICAL CHARACTERISTICS (Unless otherwise specified, TA=0~70℃, VCC=15V, f=10kHz)
PARAMETER
REFERENCE SECTION
Reference Voltage
Line Regulation
Load Regulation
Temperature Coefficient
OSCILLATOR SECTION
Oscillator Frequency
Oscillator Frequency Change Over
Operating Temperature Range
DEAD TIME CONTROL SECTION
Input Bias Current ( Pin 4)
SYMBOL
Maximum Duty Cycle, Each Output
DC(MAX)
Zero Duty
Max Duty
ERROR AMPLIFIER SECTION
Input Offset Voltage
Input Offset Current
Input Bias Current
Input Common-mode Voltage Range
Large Signal Open-Loop Voltage Range
Unity-Gain Band width
Input Threshold Voltage
VREF
VLINE
VILOAD
IREF =1.0mA
7V<VCC<40V
1mA<IREF<5mA
0℃ <FA<70℃
FOSC
CT=0.01μF, RT=12kΩ
ΔfOSC
CT=0.01μF, RT=12kΩ
IIB(DT)
VCC =15V, 0V<V4<5.25V
VCC = 15V, Pin 4 = 0V
Output Control Pin = VREF
VTH
VICS
IICS
IIB
VICR
GVO
fC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
TEST CONDITIONS
MIN
TYP
MAX
UNIT
4.75
5
2
1
0.01
5.25
25
15
0.03
V
mV
mV
%/℃
10
-2
43
kHz
2
%
-10
μA
45
%
3
3.3
2
25
0.2
10
250
1
VCC
0
V3=2.5V
V3=2.5V
V3=2.5V
7V <VCC< 40V
0.5V < V3 < 3.5V
-0.3
60
74
650
V
mV
nA
μA
V
dB
kHz
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QW-R103-005.Ba
51494
„
LINEAR INTEGRATED CIRCUIT
ELECTRICAL CHARACTERISTICS(Cont.)
PARAMETER
SYMBOL
TEST CONDITIONS
OUTPUT SECTION
Collector Off-State Current
IC(OFF) VCC=VC=40V,VE=0
Emitter Off-State Current
IE(OFF) VCC=VC=40V,VE=0
Output Saturation Voltage Common-Emitter VCE(SAT) VE=15V, LC=200mA
OUTPUT CONTROL (pin13)
Standby Power Supply Current
ICC
Output AC Characteristic
Raise Time Common-Emitter
TR
Fall Time Common-Emitter
TR
PWM COMPARATOR SECTION
Inhibit Threshold Voltage
VTHI
Zero Duty cycle
Output Source Current
IO +
0.5V < V3 < 3.5V
Output Sink Current
IO0.5V < V3 < 3.5V
POWER GOOD SECTION
CD = 1μF
Power Good Delay Time
tPD
CD = 0.47μF
Power Fail Lead Time
TP1
Output High Voltage
VOH
VPINN = 5V, IL = 1mA
Output Saturation Voltage
VSAT
VPINN = 5V, ISINK = 4mA
Output Leakage Current
IOH
MIN
2
-0.2
230
108
TYP
MAX
UNIT
2
1.1
100
-100
1.3
μA
μA
V
6
10
mA
100
25
200
100
ns
ns
4
4.5
V
mA
mA
-0.6
280
130
4
330
160
4.75
0.4
100
ms
ms
V
V
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
www.unisonic.com.tw
5 of 5
QW-R103-005.Ba
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