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UBA2016AP/1,112 View Datasheet(PDF) - NXP Semiconductors.

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UBA2016AP/1,112 Datasheet PDF : 42 Pages
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NXP Semiconductors
UBA2016A/15/15A
600 V fluorescent lamp driver
Power on
reset OR disable
GLHB AND
(reset OR disable)
Reset state
GLHB low
stop latch and ignition
attempt counter are reset
reset NOT(reset)
Stop state
GLHB low
GLHB AND
(VDD low
OR overtemp)
Standby state
GLHB high
restart
Supply voltage definitions
reset = (VDD < Vrst(VDD))
restart = (VDD < Vrestart(VDD))
VDD low = (VDD < Vstop(VDD))
VDD high = (VDD > Vstartup(VDD))
Auto-restart
state
GLHB low
fast fault
VDD high AND
enable AND
NOT(overtemp)
Preheat state
BOOST and EOL disabled
frequency is decreased
until HB preheat current or
the set value for the
preheat frequency
(UBA2015(A) only) is reached
Non oscillating states
(IC is off)
Low power consumption
GHHB and GPFC low
Oscillating states
(IC is on)
fault timeout
AND
(ignition attempts = 1)
Preheat time completed
fault timeout
AND
(ignition attempts = 2)
fault timeout
Ignition state
BOOST and EOL disabled
frequency is decreased
as long as no lamp overvoltage
or HB overcurrent or
hardswitching(1) is detected
(1)(UBA2016(A) only)
f low OR
ignition detected
Burn state
ignition attempt counter is reset
BOOST function enabled
EOL protection enabled
Frequency determined by lamp
current regulation loop
Other definitions:
enable = (VFFPRHT > Vth(en)(FFPRHT))
disable = NOT(enable)
ignition detected = (VIFB > Vth(lod)(IFB)) AND (VVFB < Vth(lod)(VFB))
fault definitions:
overtemp = {set} T > Tth(act)otp
{reset} T < Tth(rel)otp
fast fault = over voltage extra OR
capacitive mode(1) OR
(over current lamp AND f high)
coil saturation(2)
slow fault = CPT low OR
VFB low OR
NOT(PFC OK) OR
over voltage OR
(over voltage end of life AND
NOT (deep dimming))(2) OR
coil saturation OR
hardswitching OR
brownout OR
asymetrical end of life(2)
the fault timer is started by slow fault and runs as
long as slow fault continues. NOT(slow fault) resets
the fault timer.
(1)(except for UBA2016A in IGNITION state after ZVS
has been seen)
(2)(BURN state only)
001aam538
Fig 9. State diagram
UBA2016A_15_15A
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 16 November 2011
© NXP B.V. 2011. All rights reserved.
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