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Part Number: UBA2070
Description: The UBA2070 is a high voltage integrated circuit for driving electronically ballasted Cold Cathode Flu...
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UBA2070
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DataSheet
General Description
UBA2070 General Description
The UBA2070 is a high voltage integrated circuit for driving electronically ballasted Cold Cathode Fluorescent Lamps(CCFL) at mains voltages up to 277 V (RMS) (nominal value). The circuit is made in a 650 V Bipolar CMOS DMOS (BCD) power logic process. The UBA2070 provides the drive function for the two discrete MOSFETs. Besides the drive function the UBA2070 also includes the level-shift circuit, the oscillator function, a lamp voltage monitor, a current control function, a timer function and protections.
UBA2070 Maximum Ratings
| SYMBOL | PARAMETER | CONDITION | MIN. | MAX. | UNIT |
| VHS | high side supply voltage | Ihs < 30 mA; t < 1 s | - - |
600 510 |
V v |
| Ihs < 30 mA | |||||
| VACM | voltage on pin ACM | -5 | +5 | V | |
| VLVS | voltage on pin LVS | 0 | 5 | V | |
| VCS+ | voltage on pin CS+ | 0 | 5 | V | |
| VVS- | voltage on pin CS- | -0.3 | +5 | V | |
| VCSW | voltage on pin CSW | -25 | 5 | V | |
| Tamb | ambient temperature | -25 | +85 | °C | |
| Tj | junction temperature | -25 | +150 | °C | |
| Tstg | storage temperature | -55 | +150 | °C | |
| Vesd | electrostatic discharge voltage pins FVDD, GH, SH and VDD pins GL, ACM, CS+, CS-, CSW, LVS, CF, IREF, CT and VREF |
note 1 | -1000 -2500 |
+1000 +2500 |
v v |
UBA2070 Features
· Current controlled operation
· Adaptive non-overlap time control
· Integrated high voltage level shift function
· Power-down function
· Protected against lamp failures or lamp removal
· Capacitive mode protection.
· Adaptive non-overlap time control
· Integrated high voltage level shift function
· Power-down function
· Protected against lamp failures or lamp removal
· Capacitive mode protection.
UBA2070 Typical Application
· The circuit topology enables a broad range of backlight inverters.
UBA2070 Connection Diagram
UBA2070
PDF/DataSheet Download
- Datasheet: UBA2070
- File Size: 111634 KB
- Manufacturer: Philips
- Click here to Download
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