UBA2028T/N1,518 NXP Semiconductors, UBA2028T/N1,518 Datasheet

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UBA2028T/N1,518

Manufacturer Part Number
UBA2028T/N1,518
Description
IC CFL DRIVER 600V SO20
Manufacturer
NXP Semiconductors
Type
CCFL Driverr
Datasheet

Specifications of UBA2028T/N1,518

Package / Case
20-SOIC (7.5mm Width)
Current - Supply
170µA
Current - Output
280mA
Voltage - Supply
12.4 V ~ 13.6
Frequency
90 ~ 110 kHz
Operating Temperature
-25°C ~ 80°C
Driver Type
CFL Drivers
Maximum Operating Temperature
+ 80 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 25 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
935289062518
1. General description
2. Features and benefits
3. Applications
The UBA2028 is a high voltage power IC that drives and controls electronically ballasted
Compact Fluorescent Lamps (CFLs). The IC includes a Metal-Oxide-Semiconductor
Transistor (MOST) half-bridge power circuit, a dimming function, a high voltage level shift
circuit, an oscillator function, a lamp voltage monitor, a current control function, a timer
function and various protections.
UBA2028
600 V dimmable power IC for compact fluorescent lamps
Rev. 02 — 19 July 2010
Two internal 600 V, 3 Ω max MOST half-bridge power circuits
For steady state currents up to 280 mA
For ignition currents up to 1.5 A
Adjustable preheat time
Adjustable preheat current
Current controlled operating
Single ignition attempt
Adaptive non-overlap time control
Integrated high voltage level shift function
Power-down function
Protection against lamp failures or lamp removal
Capacitive mode protection
5 W to 25 W dimmable CFLs, provided that the maximum junction temperature is not
exceeded.
Product data sheet

Related parts for UBA2028T/N1,518

UBA2028T/N1,518 Summary of contents

Page 1

UBA2028 600 V dimmable power IC for compact fluorescent lamps Rev. 02 — 19 July 2010 1. General description The UBA2028 is a high voltage power IC that drives and controls electronically ballasted Compact Fluorescent Lamps (CFLs). The IC includes ...

Page 2

... NXP Semiconductors 4. Quick reference data Table specified. Symbol Start-up state V DD(startup) V DD(stop) I DD(startup) High voltage supply V hs Reference voltage V ref Voltage controlled oscillator f max f min Half-bridge power transistors Preheat current sensor V ph Lamp voltage sensor V lamp(fail) V lamp(max) Average current sensor V offset ...

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... NXP Semiconductors 5. Ordering information Table 2. Type number Package UBA2028T UBA2028 Product data sheet 600 V dimmable power IC for compact fluorescent lamps Ordering information Name Description SO20 plastic small outline package; 20 leads; body width 7.5 mm SOT163-1 All information provided in this document is subject to legal disclaimers. ...

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Block diagram SUPPLY reference voltages digital supply (5 V) analog V DD(L) 4 GND reset PREHEAT TIMER LOGIC 10 CT VOLTAGE CONTROLLED OSCILLATOR I REFERENCE CURRENT IREF CF Fig 1. Block diagram V ...

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... NXP Semiconductors 7. Pinning information 7.1 Pinning Fig 2. 7.2 Pin description Table 3. Symbol GND ACM LVS VREF CSP CSN CT CSW CF IREF GND GLO V DD PCS GLI SH SL UBA2028 Product data sheet 600 V dimmable power IC for compact fluorescent lamps GND 4 5 ACM 6 LVS ...

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... NXP Semiconductors 8. Functional description 8.1 Start-up state Initial start-up can be achieved by charging the low voltage supply capacitor at pin 16 (see Figure 8 under the condition that both half-bridge transistors TR1 and TR2 are non-conductive. The circuit will be reset in the start-up state. If the low voltage supply (V value of V High-Side (HS) driver ...

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... NXP Semiconductors 8.5 Preheat state After starting at f across sense resistor R21 (see preheat voltage level (pin PCS). Detection of the preheat voltage occurs during the end of the ‘on-time’ of the low-side switch TR2 when the internal preheat fixed voltage reference level is exceeded. Once detection has occurred the output current of the Preheat Current Sensor (PCS) circuit discharges the capacitor C internal preheat control is reset during each “ ...

Page 8

... NXP Semiconductors lamp. If during restart the lamp still fails, the voltage remains high until the end of the ignition time. At the end of the ignition time the circuit stops oscillating and the circuit will enter the Power-down mode. 8.9 Power-down mode The Power-down mode will be entered if, at the end of the ignition time, the voltage at pin LVS is above V TR1 and TR2 will be non-conductive ...

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... NXP Semiconductors Fig 3. Fig 4. UBA2028 Product data sheet 600 V dimmable power IC for compact fluorescent lamps (GH-SH halfbridge 0 V ACM 0 Oscillator and drive signals V lamp preheat state V lamp(max) V lamp(fail) Timer on off Normal ignition behavior All information provided in this document is subject to legal disclaimers. ...

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... NXP Semiconductors Fig 5. Fig 6. 8.13 Layout considerations The connection of PGND and GND is shown in UBA2028 Product data sheet 600 V dimmable power IC for compact fluorescent lamps preheat state V lamp V lamp(max) V lamp(fail) Timer on off Failure mode during ignition V burn state lamp V lamp(max) V lamp(fail) Timer ...

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... NXP Semiconductors Fig 7. UBA2028 Product data sheet 600 V dimmable power IC for compact fluorescent lamps GND GND PGND IREF UBA2028 CT CF CSW VREF CSP CSN PGND and GND connection All information provided in this document is subject to legal disclaimers. Rev. 02 — 19 July 2010 UBA2028 ...

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... NXP Semiconductors 9. Limiting values Table 4. Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages referenced to GND. Symbol Parameter V voltage on pin drain current D V voltage on pin V VDD DD V voltage on pin input voltage on pin ACM i(ACM) V input voltage on pin PCS ...

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... NXP Semiconductors 11. Characteristics Table 6. Characteristics − amb (see application circuits of Figure 8 Symbol Parameter Start-up state: pin supply voltage DD V reset supply voltage DD(rst) V start-up supply voltage DD(startup) V stop supply voltage DD(stop) V hysteresis of supply voltage DD(hys) V clamp voltage on pin VDD clamp(VDD) I start-up supply current ...

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... NXP Semiconductors Table 6. Characteristics …continued − amb (see application circuits of Figure 8 Symbol Parameter V maximum oscillator output O(osc)max voltage I start-up output current o(startup) I oscillator current osc Output driver Low-side driver output: pin GLO V HIGH-level output voltage OH V LOW-level output voltage OL I output source current ...

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... NXP Semiconductors Table 6. Characteristics …continued − amb (see application circuits of Figure 8 Symbol Parameter Output: pin CSW I output sink current sink(o) I output source current source(o) Average current sensor Input: pins CSP and CSN I input current I V offset voltage offset g transconductance m Output: pin CSW ...

Page 16

... NXP Semiconductors 12. Application information R1 L FUSISTOR 2.2 Ω 100 nF 120 V AC 400 C11 3 kΩ 250 V 1000 6 C12 20 kΩ 100 nF R23 VREF 6.8 MΩ CSP IREF kΩ C25 C9 CSW 100 pF 220 nF LVS C20 220 nF C23 R16 10 nF N.M. 5.1 kΩ ...

Page 17

... One of NXP Semiconductors’ leading business principles is to take health and safety measures for our products, to comply with all applicable legal requirements and to stay well within the EMF standards applicable at the time of printing this document for each individual product. • ...

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... The consensus of scientific opinion is that EMF exposure below the limits prescribed by safety standards and recommendations, applicable at the time of printing this document, poses no risk to human health. • NXP Semiconductors plays an active role in the development of international EMF and safety standards, enabling NXP Semiconductors to anticipate further developments in standardization for early integration in its products. • ...

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... NXP Semiconductors 14. Package outline SO20: plastic small outline package; 20 leads; body width 7 pin 1 index 1 e DIMENSIONS (inch dimensions are derived from the original mm dimensions) A UNIT max. 0.3 2.45 mm 2.65 0.25 0.1 2.25 0.012 0.096 inches 0.1 0.01 0.004 0.089 Note 1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. ...

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... NXP Semiconductors 15. Revision history Table 7. Revision history Document ID Release date UBA2028 v.2 20100719 • Modifications: Pinning standardized on • Symbol for pin 15 changed from GL to GLO in • Section 16 “Legal information” UBA2028_1 20091009 UBA2028 Product data sheet 600 V dimmable power IC for compact fluorescent lamps ...

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... In no event shall NXP Semiconductors be liable for any indirect, incidental, punitive, special or consequential damages (including - without limitation - lost profits, lost savings, business interruption, costs related to the removal or ...

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... NXP Semiconductors’ specifications such use shall be solely at customer’s own risk, and (c) customer fully indemnifies NXP Semiconductors for any liability, damages or failed product claims resulting from customer design and use of the product for automotive applications beyond NXP Semiconductors’ ...

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... NXP Semiconductors 18. Contents 1 General description . . . . . . . . . . . . . . . . . . . . . . 1 2 Features and benefits . . . . . . . . . . . . . . . . . . . . 1 3 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 4 Quick reference data . . . . . . . . . . . . . . . . . . . . . 2 5 Ordering information . . . . . . . . . . . . . . . . . . . . . 3 6 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 Pinning information . . . . . . . . . . . . . . . . . . . . . . 5 7.1 Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 7.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5 8 Functional description . . . . . . . . . . . . . . . . . . . 6 8.1 Start-up state . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8.2 Oscillation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 8.3 Adaptive non-overlap . . . . . . . . . . . . . . . . . . . . 6 8.4 Timing circuit ...

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