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PDF ( 数据手册 , 数据表 ) UBA2013L

零件编号 UBA2013L
描述 HB driver IC
制造商 Philips
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UBA2013L 数据手册, 描述, 功能
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 pdf, 数据表
7.14 PFC function
The internal PFC control block provides a TON controlled, critical mode power factor
correction controller. The TON is set by the voltage at the VO pin. The duration of the TON
pulse decreases linearly with increasing VVO. The VVO voltage is the result of an error
current through the compensation impedance connected at the VO pin. This error current
is the difference between a current proportional to the output voltage of the PFC pulling
the VO pin high and an internal reference current IVO(ref) pulling the VO pin low.
The external MOSFET is primarily driven via the secondary winding on the inductor LP1.
The TON timing starts the moment VGZCD exceeds VGZCD(start) (below the threshold of the
external MOSFET). The external MOSFET is turned on and current builds up in the
inductor LP1. At the end of TON the output driver pulls the GZCD pin down during a defined
time TOFF. This turns off the external MOSFET. The inductor current ILP1 now flows
through the boost diode DP2. The polarity of the voltage across the secondary winding
changes to negative, keeping the external MOSFET in the off state. As long as VGZCD is
below VGZCD(start) the TON timing is reset. The current in the inductor decreases linearly to
below zero. Just after the zero crossing the polarity of the voltage across the secondary
winding becomes positive and makes VGZCD exceed VGZCD(start), starting the TON timing,
turning on the external MOSFET and completing the cycle.
TON varies linearly from TON(max) to TON(min) in the range of VVO from VVO(low) to
VVO(low)+VVO. Above a voltage VVO(off) (>VVO(low)+VVO) at the VO pin, TON is zero and
the GZCD pin is continuously pulled down.
The OVC pin is intended for over-voltage and/or over-current protection. The voltage at
the OVC pin is compared to a reference voltage VOVC(ref). For VOVC > VOVC(ref) the GZCD
pin is pulled down within a time TOVC. As long as VOVC > VOVC(ref) the GZCD pin will be
continuously pulled down by the output driver. Additionally, the OVC pin provides
protection against an accidental open circuit of the external OVC divider of the PFC output
voltage. As long as VOVC < VOVC(low) the GZCD pin is continuously pulled down by the
output driver.
In order to prevent persistent ambiguous drive signals for the external MOSFET, for VGZCD
> VGZCD(start) the GZCD pin is charged after a delay of TGZCD with a current of IGZCD(on) up
to a voltage of VGZCD(active) (above the threshold of the external MOSFET). Note that the
voltage at the GZCD pin is not clamped at VGZCD(active): the secondary winding on the
inductor LP1 can take the GZCD pin up to VDD.
The PFC function is self-starting by means of a current source IGZCD(start) (<< IGZCD(on))
which, under oscillation conditions, continuously charges the GZCD pin. In any of the
non-oscillating states the current sources IGZCD(start) and IVO(ref) are off and the GZCD pin
is continuously pulled down. In oscillating conditions the positive voltage at the VO pin is
clamped at a level VVO(clamp): in non-oscillating conditions, the positive voltage at the VO
pin is clamped at a level < VVO(off).
7.15 VO-low condition
In order to prevent unintended stopping in case of the mains voltage being too low for the
PFC stage to maintain its intended output voltage, this condition is detected in the
oscillating state by the current sunk into the VO pin dropping below kVO*IVO(ref), where the
constant kVO represents a fraction (typ. 95%) of IVO(ref). In case of a VO-low condition:
the end-of-life protection is deactivated,
Free Datasheet http://www.datasheet4u.com/







UBA2013L equivalent, schematic
14. Package outline
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
y
Z
16
D
pin 1 index
1
e
EA
X
c
HE
vM A
9
A2
A1
8
bp
wM
Q
(A3)
A
Lp
L
detail X
0 2.5 5 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
UNIT max. A1 A2 A3 bp
c D(1) E (1) e
HE
L
Lp
Q
v
mm
1.75
0.25
0.10
1.45
1.25
0.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
1.27
6.2
5.8
1.05
1.0
0.4
0.7
0.6
0.25
inches
0.069
0.010
0.004
0.057
0.049
0.01
0.019 0.0100 0.39
0.014 0.0075 0.38
0.16
0.15
0.05
0.244
0.228
0.041
0.039
0.016
0.028
0.020
0.01
w y Z (1)
0.25 0.1
0.7
0.3
0.01
0.004
0.028
0.012
8o
0o
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
OUTLINE
VERSION
SOT109-1
IEC
076E07
REFERENCES
JEDEC
JEITA
MS-012
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-19
Fig 7. Package outline SOT109-1 (SO16)
Free Datasheet http://www.datasheet4u.com/










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