UBA2211 Datasheet PDF - NXP Semiconductors

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UBA2211
NXP Semiconductors

Part Number UBA2211
Description Half-bridge power IC family
Page 19 Pages


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UBA2211
Half-bridge power IC family for CFL lamps
Rev. 2 — 3 January 2011
Objective data sheet
1. General description
The UBA2211 family of integrated circuits are a range of high voltage monolithic ICs for
driving Compact Fluorescent Lamps (CFL) in half-bridge configurations. The family is
specifically designed to provide easy integration of lamp loads across a range of burner
power and mains voltages.
Patented technologies and integrated protection types:
Preheat state:
Preheat applications: Adjustable current controlled preheat mode technology
enables the preheat time (tph) and preheat current to be set. This mode is triggered
during start up.
Non-preheat applications: Glow-time control minimizes electrode damage just after
ignition of the lamp.
Saturation Current Protection (SCP): This protection is active during ignition
ensuring the lamp inductor can operate at the saturation current limit without
exceeding the current ratings of the integrated half-bridge power transistors.
RMS current control: The IC internally calculates the RMS current and changes the
frequency (fosc) to ensure the RMS current remains constant. RMS current control is
active in the burn state ensuring a constant half-bridge burner current and IC
dissipation. The nominal half-bridge burner current is set using the sense resistor
(RSENSE).
OverTemperature Protection (OTP) and Capacitive Mode Protection (CMP):
Overtemperature and capacitive mode protection monitor the application ensuring, in
non-standard conditions, correct system shutdown and a safe condition at the
burner’s end-of-life.
2. Features and benefits
2.1 System integration
„ Integrated half-bridge power transistors
‹ UBA2211A: 220 V mains; 13.5 Ω; 0.9 A maximum ignition current
‹ UBA2211B: 220 V mains; 9 Ω; 1.35 A maximum ignition current
‹ UBA2211C: 220 V mains; 6.6 Ω; 1.85 A maximum ignition current
„ Integrated bootstrap diode
„ Integrated high voltage supply
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UBA2211
Half-bridge power IC family for CFL lamps
2.2 Burner lifetime
„ Current controlled preheat with adjustable preheat time and preheat current
„ Minimum glow time control to support cold start
„ Lamp power independent from mains voltage variations
„ Lamp inductor saturation protection during ignition
2.3 Safety
„ Overtemperature protection
„ Capacitive mode protection
„ Overpower control
„ System shutdown at burner end of life
2.4 Ease of use
„ Adjustable operating frequency for easy fit with various burners
„ Each device in the family incorporates the same controller functionality ensuring easy
power scaling and roll-out across a complete range of CFLs
3. Applications
„ Compact Fluorescent Lamps up to 25 W for indoor and outdoor applications
4. Ordering information
Table 1. Ordering information
Type number Package
Name Description
UBA2211AP/N1 DIP8
plastic dual in-line package; 8 leads (300 mil)
UBA2211BP/N1
UBA2211CP/N1
UBA2211AT/N1 SO14
UBA2211BT/N1
plastic small outline package; 14 leads; body width
3.9 mm
UBA2211CT/N1
Version
SOT97-1
SOT108-1
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UBA2211
Objective data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 3 January 2011
© NXP B.V. 2011. All rights reserved.
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5. Block diagram
UBA2211
Half-bridge power IC family for CFL lamps
rectified mains
VDD
CVDD
COUT1
Clamp
LAMP
COUT2
Llamp
UBA2211
VDD
VO(ref)RMS
OTP
startup
VDD
DVDT HV
7(6) n.p. (5) 6(3)
CDVDT
VDD
reset
Isat
LATCH
reset set
HSPT
DRIVER
n.p. (4) PGND
3(11) FS
HSPT
Cbs
VDD
Rosc
RC 8(7)
Cosc
VOLTAGE
CONTROLLED
OSCILLATOR
:2
SW 1(8)
VSW
CSW
VSW(ph)
burn state
fosc
RMS control
X2 VO(ref)RMS2
PULSE
HS on
GLOW AND Isat
CONTROL
NON-OVERLAP LS on
TIMER
LSPT
DRIVER
preheat
preheat
5(14) OUT
LSPT
4(12) SENSE
SGND 2(1, 2, 9, 10, 13)
VO(ref)RMS
Vref(ph)
RSENSE
n.p. in the diagram means not present in DIP8 package
Fig 1. Block diagram
001aal990
In the SO14 package, the two diodes which are required for the DVDT supply are
integrated and connected between pins DVDT and PGND.
In the DIP8 package, these diodes are not bonded out and need to be placed externally.
www.DataSheet4U.com
UBA2211
Objective data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 3 January 2011
© NXP B.V. 2011. All rights reserved.
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6. Pinning information
6.1 Pinning
UBA2211
Half-bridge power IC family for CFL lamps
SW 1
8 RC
SGND 2
7 VDD
UBA2211P
FS 3
6 HV
SENSE 4
5 OUT
014aab092
Fig 2. Pin configuration for UBA2211XP (SOT97-1)
SGND 1
14 OUT
SGND 2
13 SGND
HV 3
12 SENSE
PGND 4 UBA2211T 11 FS
DVDT 5
10 SGND
VDD 6
RC 7
9 SGND
8 SW
014aab093
Fig 3. Pin configuration for UBA2211XT (SOT108-1)
6.2 Pin description
Table 2.
Symbol
SW
SGND
FS
SENSE
OUT
HV
VDD
RC
DVDT
PGND
Pin description
Pin Description
UBA2211XP UBA2211XT
18
sweep timing and VCO input
2 1, 2, 9, 10, 13 signal ground
3 11 high-side floating supply output
4 12 voltage sense for preheat and RMS control
5 14 half-bridge output
63
high-voltage supply
76
internal low-voltage supply output
87
internal oscillator input
n.p. 5
DVDT supply input
n.p. 4
DVDT supply ground
www.DataSheet4U.com
UBA2211
Objective data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 3 January 2011
© NXP B.V. 2011. All rights reserved.
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