Datasheet
UBA2028 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2010. All rights reserved.
Product data sheet Rev. 02 — 19 July 2010 13 of 23
NXP Semiconductors
UBA2028
600 V dimmable power IC for compact fluorescent lamps
11. Characteristics
Table 6. Characteristics
V
DD
=13V; V
FS
−
V
SH
=13V; T
amb
=25
°
C; all voltages referenced to GND unless otherwise specified
(see application circuits of Figure 8
and Figure 9).
Symbol Parameter Conditions Min Typ Max Unit
Start-up state: pin V
DD
V
DD
supply voltage for defined driver output;
TR1=off; TR2=off
--6V
V
DD(rst)
reset supply voltage TR1 = off; TR2 = off 4.5 5.5 7.0 V
V
DD(startup)
start-up supply voltage for oscillator 12.4 13.0 13.6 V
V
DD(stop)
stop supply voltage for oscillator 8.6 9.1 9.6 V
V
DD(hys)
hysteresis of supply voltage for start-stop 3.5 3.9 4.4 V
V
clamp(VDD)
clamp voltage on pin VDD Power-down mode 10 11 12 V
I
DD(startup)
start-up supply current for oscillator;
V
DD
<V
DD(startup)
- 170 200 μA
I
DD
supply current half-bridge frequency =
40 kHz without gate drive
-1.52.2mA
I
DD(pd)
power-down supply current V
DD
= 9 V - 170 200 μA
High voltage supply: pins HV, SH and FS
V
hs
high-side supply voltage I
HV
<30μA; t < 1 s - - 600 V
I
leak
leakage current 600 V at high voltage pins - - 30 μA
Reference voltage: pin VREF
V
ref
reference voltage I
leak
=10μA 2.86 2.95 3.04 V
ΔV
ref
/V
ref
relative reference voltage
variation
I
leak
=10μA;
T
amb
=25°Cto150°C
- −0.64 - %
I
source
source current 1 - - mA
I
sink
sink current 1 - - mA
Z
o
output impedance I
leak
= 1 mA source - 3.0 - Ω
Current supply: pin IREF
V
I
input voltage - 2.5 - V
I
I
input current reference range 65 - 95 μA
Voltage controlled oscillator
Output: pin CSW
V
O
output voltage for control 2.7 3.0 3.3 V
V
clamp
clamp voltage burn state 2.8 3.1 3.4 V
Voltage controlled oscillator output: pin CF
f
max
maximum frequency for bridge; C
CF
= 100 pF 90 100 110 kHz
f
min
minimum frequency for bridge; C
CF
= 100 pF 38.9 40.5 42.1 kHz
Δf/f relative frequency variation T
amb
= −20 °C to +80 °C-1.3-%
t
start
start time first output oscillator stroke - 50 - μs
t
no(min)
minimum non-overlap time TR1 to TR2 gate voltages 0.68 0.90 1.13 μs
TR2 to TR1 gate voltages 0.75 1.00 1.25 μs
t
no(max)
maximum non-overlap time f
bridge
=40kHz
[1]
-7.5-μs