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555CP

Part # 555CP
Description
Category IC
Availability In Stock
Qty 430
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Date Code: 8404
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

4-159
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
TC96C55
4
3
2
V
DD
1V
2V
V
REF
1V 2V 3V
Q
1
Q
2
1
3V
3V
I
SOURCE
+4V
Q
3
I
SINK
7
6
OUTPUT A
OUTPUT B
5
GND
V
REF
V
R1
V
IN
V
R2
8
3A OUTPUT PROGRAMMABLE POWER OSCILLATOR
ORDERING INFORMATION
Operating
Part No. Package Temp Range
TC96C555COA 8-Pin SOIC 0°C to +70°C
TC96C555CPA 8-Pin Plastic DIP 0°C to +70°C
TC96C555EOA 8-Pin SOIC – 40°C to +85°C
TC96C555EPA 8-Pin Plastic DIP – 40°C to +85°C
TC96C555MJA 8-Pin CerDIP – 55°C to +125°C
PIN CONFIGURATIONS (DIP and SOIC)
18
27
36
45
V
DD
V
R1
V
REF
V
IN
V
R2
OUT
OUT
GND
V
R1
V
REF
V
IN
V
R2
V
DD
OUT
OUT
GND
18
2
7
36
45
TC96C555CPA
TC96C555EPA
TC96C555COA
TC96C555EOA
FUNCTIONAL BLOCK DIAGRAM
TC96C555-7 10/21/96
FEATURES
Controllable Duty Cycle
Wide Operating Range .............................5V to 18V
High Peak Output Current .................................. 3A
High Capacitive Load Drive
Capability .................................... 1800pF in 20nsec
Short Delay Time ............................. < 150nsec Typ
APPLICATIONS
Fixed Frequency Power Oscillator
Voltage Controlled Oscillator
Low Power Buck Regulator Supply
MOSFET Driver
Simple diode inverters and doublers
GENERAL DESCRIPTION
The TC96C555 Power Oscillator is an easily pro-
grammed IC that can be used in simple switch-mode power
supplies, diode doublers and inverters, and similar circuits
where high-current pulses are needed in an economical
form.
The TC96C555 uses TelCom Semiconductors' new
Tough CMOS™ process. The output drive capability is
similar to the TC4423/4/5 MOSFET Drivers, which can
switch in 25nsec into a capacitive load of 1,800pF. The
TC96C555 will not latch up under any conditions within their
power and voltage ratings. They can accept, without dam-
age, up to 1.5A of reverse current (of either polarity) being
forced back into the output. All terminals are also fully
protected against up to 4kV of electrostatic discharge. The
peak output is rated at 3A. Split outputs permits driving of an
external pair of MOSFETS, with controllable cross conduc-
tion between upper and lower devices.
4-160
TELCOM SEMICONDUCTOR, INC.
ELECTRICAL CHARACTERISTICS: unless otherwise specified T
A
= +25°C with 10V V
DD
18V:
Symbol Parameter Test Condition Min Typ Max Unit
Oscillator
Voltage Stability V
DD
= 7 to 18V 1 5 %/V
Temperature Stability – 55 Temp 125°C 0.4 %/°C
Power Supply
Power Supply Current I
DD
0 V
IN
3V 2 3 mA
Switching Time
1
t
R
Rise Time C1 = 1800pF 23 30 nsec
t
F
Fall Time C1 = 1800pF 20 30 nsec
t
D1
Delay Time C1 = 1800pF 140 180 nsec
t
D2
Delay Time C1 = 1800pF 100 140 nsec
Output
V
OH
High Output Voltage
V
DD
– 0.025
–– V
V
OL
Low Output Voltage 0.025 V
R
O
Output Res Hi State V
DD
= 15V 3.5 5
R
O
Output Res Lo State V
DD
= 15V 2.5 5
I
PK
Peak Output Current V
DD
= 18V 3 A
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... +20V
Input Voltage, Pin 1 or 4................. V
DD
+0.3 to GND –0.3
Maximum Chip Temperature................................. +150°C
Storage Temperature Range ................ – 65°C to +150°C
Package Thermal Resistance
CerDIP R
ΘJ-A
................................................................ 150°C/W
CerDIP R
ΘJ-C
................................................................... 50°C/W
PDIP R
ΘJ-A
.................................................................... 125°C/W
PDIP R
ΘJ-C
....................................................................... 42°C/W
SOIC R
ΘJ-A
.................................................................... 155°C/W
SOIC R
ΘJ-C
....................................................................... 45°C/W
Operating Temperature Range
C Version ...............................................0°C to +70°C
E Version ..........................................– 40°C to +85°C
M Version ....................................... – 55°C to +125°C
Package Power Dissipation (T
A
70°C)
Plastic DIP ......................................................730mW
CerDIP ............................................................800mW
SOIC ...............................................................470mW
ELECTRICAL CHARACTERISTICS: unless otherwise specified T
A
= +25°C with 5V V
DD
18V.
Symbol Parameter Test Condition Min Typ Max Unit
Programmable Current Range
Pin 4 Input Current for I
SOURCE
Control (V
REF
- V
R1
) / R
CHG
Fig. 2
5.0 150 µA
Pin 1 Input Current for
I
SINK
Control (V
REF
- V
R2
) / R
DIS
Fig. 2
5.0 150 µA
Reference Section
V
REF
V
DD
= 15V, I
REF
= 10µA
3.8 4 4.2 V
Line Regulation of V
REF
V
DD
= 7V to 18V 0.6 1 %/V
Load Regulation of V
REF
I
REF
= 0 to 1mA 0.1 0.2 %/mA
V
DRIFT
V
REF
Drift Over Lifetime 5 %
TCV
REF
V
REF
Tempco
– 55 Temp 125°C
1100 2000 ppm/°C
V
R1,
V
R2
Voltage at Pin 1 & 4 2.85 3.0 3.15 V
V
REF
- V
R
Voltage Across R
CHG
and R
DIS
0.85 1 1.15 V
V
ih
Pin 2, High Switching Threshold
V
DD
= 15V 1.8 2 2.2 V
V
il
Pin 2, Low Switching Threshold
V
DD
= 15V 0.8 1 1.2 V
V
ih
- V
il
Delta High to Low Threshold
V
DD
= 15V 0.9 1.0 1.1 V
I
REF
V
REF
Pin 3 Short to GND Pin 5
V
DD
= 15V 8 15 mA
TC96C555
3A OUTPUT PROGRAMMABLE
POWER OSCILLATOR
4-161
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
TC96C555
3A OUTPUT PROGRAMMABLE
POWER OSCILLATOR
ELECTRICAL CHARACTERISTICS: specifications over operating temperature range unless otherwise
specified 5.0V < V
DD
<18V.
Symbol Parameter Test Condition Min Typ Max Unit
Programmable Current Range
Pin 4 Input Current for I
SOURCE
Control (V
REF
-V
R1
) / R
CHG
Fig. 2
5.0 100 µA
Pin 1 Input Current for I
SINK
Control (V
REF
-V
R2
) / R
DIS
Fig. 2
5.0 100 µA
Reference Section
V
REF
V
DD
= 15V I
REF
= 10µA 3.6 4 4.4 V
V
DD
= 7 to 18V Line Regulation of V
REF
0.9 1.5 %/V
I
REF
= 0 to 1mA Load Regulation of V
REF
0.1 0.4 %/mA
V
DRIFT
V
REF
Drift Over Lifetime 5 %
TCV
REF
V
REF
Tempco – 55 Temp 125°C 1100 2000 ppm/°C
V
R1,
V
R2
Voltage Pin at 1 and 4 V
DD
= 15V 2.7 3 3.3 V
V
REF
-V
R
Voltage Across R
CHG
and R
DIS
0.8 1 1.2 V
V
ih
Pin 2, High Switching Threshold V
DD
= 15V 1.75 2 2.25 V
V
il
Pin 2, Low Switching Threshold V
DD
= 15V 0.75 1 1.25 V
V
ih
to V
il
Delta High to Low Threshold V
DD
= 15V 0.9 1.0 1.1 V
I
REF
V
REF
Pin 3 Short to GND Pin 5 V
DD
= 15V 18 mA
Oscillator
Voltage Stability V
DD
= 7V to 18V 1 8 %/V
Temperature Stability – 55 Temp 125°C 0.4 %/°C
Power Supply
I
DD
Power Supply Current 0 V
IN
3V 4 mA
Switching Time
1
t
R
Rise Time C1 = 180pF, Fig. 1 33 40 nsec
t
F
Fall Time C1 = 1800pF, Fig. 1 30 40 nsec
t
D1
Delay Time Fg. 1 180 220 nsec
t
D2
Delay Time Fig. 1 160 200 nsec
Output
V
OH
High Output Voltage
V
DD
– 0.025
–– V
V
OL
Low Output Voltage 0.025 V
R
O
Output Res Hi State V
DD
= 15V 4.5 6
R
O
Output Res Lo State V
DD
= 15V 3.4 6
I
PK
Peak Output Current V
DD
= 18V 2 A
NOTE :
1
Switching times guaranteed by design.
The typical values are from 125°C measurements.
Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those
listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device
at these or any other conditions above those indicated in the Operational Specifications is not implied. Any exposure to Absolute Maximum Rating
Conditions may affect device reliability.
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