Portable Products
Back Light Products |
Unitrode Part Number |
|
Application |
Zero Voltage Switched Fluorescent |
Zero Voltage Switched |
Topology |
Push-pull |
Push-pull |
Voltage Range |
4.5V to 20V |
4.5V to 24V |
Reference Tolerance |
1.2% |
1.2% |
Open Lamp Detect |
Y |
Y |
Soft Start |
Y |
Y |
External Synchronization |
Y |
Y |
Shutdown Current |
1mA |
1mA |
Maximum Frequency |
200kHz |
200kHz |
Lamp Intensity Control |
Y |
Y |
Application/Design Note |
Battery Charger Products |
Unitrode Part Number |
||
UCC3956 + |
|||
Battery Chemistry |
Lead-Acid |
Lead-Acid |
Lithium-Ion |
Control Topology |
Linear |
Switchmode |
Switchmode |
Reference Tolerance |
1.3% |
1% |
1% |
Temperature Compensation |
Y |
Y |
N |
Charge States |
4 |
4 |
4 |
Over Charge Timer |
N |
N |
Y |
Status Bits |
N |
Y |
Y |
Average Current Mode Control |
N/A |
Y |
Y |
Application/Design Note | U-104, U-131 | U-155 | |
+ New Product |
Battery Protection Products |
Unitrode Part Number |
|
UCC3911 + |
UCC3957 + |
|
Battery Chemistry |
Lithium-Ion |
Lithium-Ion |
Cells Protected |
2 |
3, 4 |
Threshold Tolerance |
50mV |
50mV |
Protection FETs |
Internal |
External PMOS |
Overcurrent Protection |
Y |
Y |
Overcurrent Delay |
Y |
Y |
Serial Bus |
N |
N |
A/D |
N |
N |
Shutdown Current |
3.5mA |
3.5mA |
+ New Product |
Linear Regulators |
Unitrode Part Number |
||
UCC381 + |
UCC383 + |
UCC384 + |
|
Output Voltage |
3.3, 5, ADJ |
3.3, 5, ADJ |
5, 12, ADJ |
Dropout Voltage |
0.45V at 1A |
0.45V at 3A |
0.2V at 500mA |
Quiescent Current |
400mA |
400mA |
240mA |
Maximum Input Voltage |
9V |
9V |
-16V |
Shutdown Current |
10mA |
10mA |
20mA |
Voltage Tolerance |
2.5% |
2.5% |
2.5% |
Line Regulation |
0.01%/V |
0.01%/V |
0.01%/V |
+ New Product |
Power Management Products |
Unitrode Part Number |
||||
UCC3930 + |
UCC3941 + |
UCC39411 + |
UCC3954 + |
||
Description |
Cellular Telephone |
1V Synchronous Boost Converter |
1V Low Power Boost Controller |
Microprocessor Supervisor with Watchdog Timer |
Single Cell Lithium-Ion |
Application |
3 Integrated Positive |
High Efficiency Integrated |
High Efficiency Low Power Synchronous Boost Conversion |
Accurate Microprocessor |
High Efficiency Flyback |
Key Features |
|
|
|
|
|
Application/Design Note | DN-74 | DN-73 | |||
+ New Product |
IrDA Products |
Unitrode Part Number |
||||
UCC5341 + |
UCC5342 + |
UCC5343 + |
UCC5344 + |
||
Device Type |
Receiver |
Receiver |
Transceiver |
Transceiver |
Transceiver |
Supply Voltage |
3.3V or 5V |
3.3V or 5V |
3.3V or 5V |
3.3V or 5V |
3.3V or 5V |
Data Rate |
2.4kBPS to 115.2kBPS |
2.4kBPS to 115.2kBPS |
2.4kBPS to 115.2kBPS |
2.4kBPS to 115.2kBPS |
9.6kBPS to 4mBPS |
Dynamic Range |
150nA to 100mA |
100nA to 100mA |
100nA to 100mA |
100nA to 100mA |
100nA to 100mA |
Quiescent Current |
90mA |
250mA |
250mA |
250mA |
900mA |
Encoder/Decoder |
N |
N |
N |
Y |
N |
IrDA Compliant |
Y |
Y |
Y |
Y |
Y |
LED Driver |
N/A |
N/A |
500mA |
500mA |
500mA |
+ New Product |
Last updatd: 05/21/98