UBA2037TN1,118 NXP

UBA2037 Full bridge control IC for HID general lighting Rev. 01 30 October 2008 Product data sheet 1. General description The UBA2037 is a high voltage monolithic Integrated Circuit (IC) manufactured in a High Voltage Silicon On Insulator (HVSOI) process. This circuit is designed for driving MOSFETs in a full bridge conguration. In addition, it features a disable function, an internal adjustable oscillator and an external clock input function with a high-voltage level shifter for driving the bridge. To guarantee an accurate 50 % duty cycle, the oscillator signal can be passed through a divider before being fed to the output drivers. The UBA2037 is especially suitable for High Intensity Discharge (HID) lamp drivers for projectors and general lighting applications. 2. Features n Full bridge driver circuit n Integrated bootstrap diodes n 464 V integrated high voltage level shift function to drive HID lamps below ground level n 550 V series regulator input to make the internal supply n 550 V maximum bridge voltage n Accurate bridge disable function n Input for start-up delay n Adjustable oscillator frequency n Selectable frequency divider n Predened bridge position during start-up n Adaptive non-overlap 3. Applications n The UBA2037 can drive (via the power MOSFETs) any kind of load in a full bridge conguration. n The circuit is especially designed as a commutator controller for HID lamps in projectors and general lighting applications.UBA2037 NXP Semiconductors Full bridge control IC for HID general lighting 4. Ordering information Table 1. Ordering information Type number Package Name Description Version UBA2037T SO24 plastic small outline package 24 leads body width 7.5 mm SOT137-1 UBA2037TS SSOP28 plastic shrink small outline package 28 leads body width 5.3 mm SOT341-1 5. Block diagram V CLK V SS(CLK) DD(CLK) 1 2 3 16 FSL 15 HIGHER LEFT GHL DRIVER 6 HV 17 SHL 14 27 FSR SGND STABILIZER 28 LOGIC SIGNAL HIGH VOLTAGE HIGHER RIGHT 9 GHR VDD GENERATOR LEVEL SHIFTER DRIVER 26 13 SHR RC UBA2037TS OSCILLATOR 23 LOWER RIGHT GLR DRIVER 2 21 PGND 10 SU 20 12 LOW VOLTAGE LOWER LEFT LOGIC GLL BD LEVEL SHIFTER DRIVER 1.29 V bridge disable 11 4, 5, 7, 8, 18, 19, 22, 24, 25 n.c. DD 014aaa635 Fig 1. Block diagram UBA2037 1 NXP B.V. 2008. All rights reserved. Product data sheet Rev. 01 30 October 2008 2 of 14