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UBA2013L Schematic ( PDF Datasheet ) - Philips

Teilenummer UBA2013L
Beschreibung HB driver IC
Hersteller Philips
Logo Philips Logo 




Gesamt 22 Seiten
UBA2013L Datasheet, Funktion
UBA2013/L3
HB driver IC with PFC for fluorescent rings
Rev. 00.01 — 23 February 2007
Preliminary data sheet
1. General description
The UBA2013/L3 is a high voltage IC intended to drive and control fluorescent lamps. The
IC can handle both cold and warm ignition of the lamp. It contains a TON-controlled PFC
function, a half bridge controller circuit with level shifter and an internal bootstrap diode to
drive an external half bridge. UBA2013/L3 also offers a functionality to properly handle
fault conditions such as capacitive mode switching, end-of-lamp-life and overcurrent.
UBA2013/L3 is designed for wide-input mains voltage (120 V - 277 V) applications.
2. Features
2.1 Half bridge
„ Suitable for cold and warm ignition
„ Adjustable preheat time
„ Adjustable ignition voltage
„ Integrated bootstrap function
„ Protection for lamp failure and
end-of-life
„ Adjustable preheat current
„ Single ignition attempt
„ Automatic restart after relamping
„ Protection for capacitive mode
2.2 PFC
„ Three pin PFC controller using TON
control
„ Critical mode operation
„ Overvoltage/overcurrent protection
3. Applications
The UBA2013/L3 can provide the drive and control function for a wide range of half bridge
based ballast applications at different mains voltages.
4. Ordering information
Table 1. Ordering information
Type number
Package
Name
Description
UBA2013T
SO16
plastic small outline package; 16 leads; body width 3.9mm
Version
SOT109-1
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UBA2013L Datasheet, Funktion
T2
RS RS
R6 Vrs(ph)
RS
CLAMP
klsat x IRS
Vcf
T2
Fig 4. Excess charge control
T1
time
T2
T1
014aaa045
7.6 Burn state
At the end of the ignition time, the burn state is entered. In this state the voltage at the CI
pin will continue to increase until a clamp level is reached corresponding to the minimum
frequency fB. The circuit will continue to oscillate at the minimum frequency, unless
capacitive mode is detected. In the burn state the CP pin is pulled to ground with a
discharge impedance RCP(disch). The EOL protection is enabled. The excess charge
control mechanism will remain active.
7.7 Capacitive mode protection
Capacitive mode protection is active in all oscillating states. The signal across resistor RS
(R6 in the application diagram of Figure 6) also gives information about the switching
behavior of the half bridge. If the voltage across resistor RS is not below VRS(cap) at the
moment of turn-on of T2, the capacitive mode detection circuit assumes the circuit to be in
capacitive mode. Upon capacitive mode detection CI is gradually discharged and instantly
the frequency gradually increases as long as capacitive mode is detected. The frequency
decreases gradually down to the minimum frequency if no capacitive mode is detected.
Detecting capacitive mode at the maximum frequency will activate the internal current
ISTOP(ch) that charges the STOP pin.
7.8 Stop function
For all oscillating states the IC will enter the stop state for VSTOP > VSTOP(ref). Note that
there is no internal stop timing. An external stop timing can be obtained via the RC time of
the network R4, R5 and C11, see the application diagram in Figure 6. During preheat the
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UBA2013L pdf, datenblatt
Table 5. Characteristics …continued
Tamb = 25 °C; VVDD = 13.0 V; CCF = 100 pF; RRREF = 33 k; CCP = 100 nF; CCI = 100 nF; all voltages referenced to ground
unless otherwise specified.
Symbol
Parameter
Conditions
Min Typ Max Unit
Itot
ICI(charge)
ICI(discharge)
ICF/VCI
VRS(cap)
Total supply current
Charge current at CI pin
Discharge current at CI pin
CI transconductance
Capacitive-mode control voltage
VCI = 1.5 V
VCI = 1.5 V
VCI = 1.5 V
[1][7] 1.5 2.0 mA
36 44 52 µA
74 90 106 µA
12 µA/V
[8] -40 -20 0
mV
VRREF
VG1(on)
VG1(off)
Reference voltage
On voltage at pin G1
Off voltage at pin G1
|IG1| = 1 mA
|IG1| = 1 mA
2.425
10.5
2.500
2.575
0.3
V
V
V
VG2(on)
On voltage at pin G2
VG2(off)
Off voltage at pin G2
RG1(on)
High side driver on resistance
RG1(off)
High side driver off resistance
RG2(on)
Low side driver on resistance
RG2(off)
Low side driver off resistance
Vdrop
Voltage drop at bootstrap switch
RCP(disch)
On resistance switch at CP pin
Stop and end-of-life
|IG2| = 1 mA
|IG2| = 1 mA
V(G1-S1)= 3 V
V(G1-S1) = 3 V
VG2 = 3 V
VG2 = 3 V
IFS = 5 mA
VCP = 0.6 V
10.5
0.3
250
35
250
35
2.0
120
V
V
V
VSTOP(ref)
VSTOP(reset)
VSTOP(hys)
ISTOP(ch)
ISTOP(dis)
Stop reference level
Stop reset level
Stop hysteresis
Stop-charge current source
Stop discharge current
VSTOP = 0.75 V
VSTOP = 0.75 V
1.21 1.26 1.31 V
[10] 0.95 1.00 1.05 V
[10] 0.20 0.25 0.30 V
2.0 2.5 3.0 µA
0.35 0.50 0.65 µA
RSTOP(disch) On resistance discharge switch
VEOL(high)
High level end-of-life comparator
VEOL(low)
Low level end-of-life comparator
Power-factor control
VSTOP = 0.5 V
1.0 2.5 4.0 k
2.9 3.0 3.1 V
1.9 2.0 2.1 V
IVO(ref)
VOVC(ref)
TOVC
VVO(low)
VVO
IGZCD(start)
IGZCD(on)
Output voltage reference current
OVC reference level
Delay OVC comparator
VO offset voltage
VO dynamic range
Start-up current at GZCD pin
Turn on current at GZCD pin
VVO = 3.0 V
VGZCD = 0 V
VGZCD = 3 V
97 102 107 µA
1.21 1.26 1.31 V
60 ns
1.0 V
2.7 V
35 42.5 50 µA
12 µA
VGZCD(start)
VGZCD(active)
TGZCD
TON(max)
TON(min)
IGZCD(sink)
GZCD start level
GZCD active level
GZCD turn on delay
Maximum on time
Minimum on time
Gate drive sink current
IGZCD= 0.5 mA
VVO = VVO(low)
VVO = VVO(off)
VGZCD = 4 V
1.9 2.0 2.1 V
6.4 V
0.5 µs
[4] 20
µs
[3][10]
0.4 0.5 µs
200 mA
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