IC CTRLR PFC/BALLAST SOIC-20

L6585D

Manufacturer Part NumberL6585D
DescriptionIC CTRLR PFC/BALLAST SOIC-20
ManufacturerSTMicroelectronics
TypePFC/Ballast Controller
L6585D datasheet
 


Specifications of L6585D

Frequency58.4 ~ 62 kHzCurrent - Supply7mA
Current - Output600mAVoltage - Supply11 V ~ 16 V
Operating Temperature-40°C ~ 150°CPackage / Case20-SOIC (7.5mm Width)
For Use With497-8421 - BOARD DEMO 1X54W T5 LAMP497-8405 - BOARD EVAL L6585D/TSM101Lead Free Status / RoHS StatusLead free / RoHS Compliant
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Features
Pre-heating and ignition phases independently
programmable
Ignition voltage control
Transition mode PFC with over-current
protection
Programmable and precise End-of-life
protection compliant with all ballast
configurations
Auto-adjusting half-bridge over-current control
Automatic re-lamp
3% oscillator precision
1.2µs dead time
PFC over-voltage protection and feedback
disconnection
Under voltage lock-out
Figure 1.
Block diagram
COMP
COMP
MULT
MULT
2.5V
2.5V
E/A
E/A
+
+
MULTIPLIER
MULTIPLIER
_
_
and THD
and THD
INV
INV
OPTIMIZER
OPTIMIZER
1.2V
1.2V
OL
OL
ZCD
ZCD
STARTER
STARTER
0.7V
0.7V
Vcc
Vcc
PFG
PFG
PFSTOP
PFSTOP
CTR
CTR
OL
OL
OVP
OVP
3.4V
3.4V
DIS
DIS
2V
2V
0.75V
0.75V
EOLR
EOLR
RELAMP
RELAMP
4.63V
4.63V
May 2007
Combo IC for PFC and ballast control
Applications
Electronic ballast
PFCS
PFCS
Vcc
Vcc
LEB
LEB
1.7V
1.7V
17V
17V
_
_
+
+
_
_
DETECTION
DETECTION
PWM
PWM
COMP.
COMP.
CHOKE
CHOKE
SAT.
SAT.
S
S
R
R
Q
Q
LATCH
LATCH
OVP
OVP
PFSTOP
PFSTOP
WINDOW
WINDOW
DIS
DIS
COMPARATOR
COMPARATOR
EOL
EOL
& REF.
& REF.
1.9V
1.9V
2V
2V
VCO
VCO
EOLP
EOLP
RF
RF
OSC
OSC
EOI
EOI
Rev 5
L6585D
SO-20
HVG
HVG
UV
UV
DRIVER
DRIVER
SYNCHRONOUS
SYNCHRONOUS
BOOTSTRAP DIODE
BOOTSTRAP DIODE
DEAD
DEAD
LEVEL
LEVEL
TIME
TIME
SHIFTER
SHIFTER
DRIVING
DRIVING
LVG DRIVER
LVG DRIVER
LOGIC
LOGIC
CONTROL
CONTROL
1.6V
1.6V
HB STOP
HB STOP
LOGIC
LOGIC
TIMING
TIMING
MANAGEMENT
MANAGEMENT
4.6
4.6
1.5
1.5
BOOT
BOOT
HSD
HSD
OUT
OUT
Vcc
Vcc
LSD
LSD
GND
GND
HBCS
HBCS
0.9V
0.9V
Vcc
Vcc
Tch
Tch
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www.st.com
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L6585D Summary of contents

  • Page 1

    ... COMPARATOR COMPARATOR EOL EOL & REF. & REF. 1.9V 1. VCO VCO EOLP EOLP RF RF OSC OSC EOI EOI Rev 5 L6585D SO-20 HVG HVG UV UV DRIVER DRIVER SYNCHRONOUS SYNCHRONOUS BOOTSTRAP DIODE BOOTSTRAP DIODE DEAD DEAD LEVEL LEVEL TIME TIME SHIFTER SHIFTER DRIVING ...

  • Page 2

    ... End of life – window comparator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 7 Half-bridge current control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 8 CTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 9 Re–lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 10 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 11 Order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 12 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2/25 Pre-heating (time interval A Figure Ignition (time interval B Figure Run mode (time interval C Figure L6585D ...

  • Page 3

    ... L6585D 1 Device description Designed in High-voltage BCD Off-line technology, the L6585D embeds a PFC controller, a half-bridge controller, the relevant drivers and the logic necessary to build an electronic ballast. The advanced and precise logic circuitry, combined with the programmability of the End-of- Life windows comparator threshold, makes the L6585D compliant with either "lamp-to- ground" ...

  • Page 4

    ... OSC OSC RF RF EOI EOI TCH TCH EOLP EOLP EOL-R EOL-R CTR CTR MULT MULT COMP COMP INV INV L6585D BOOT BOOT HSD HSD OUT OUT VCC VCC LSD LSD GND GND HBCS HBCS PFG PFG PFCS PFCS ZCD ZCD ...

  • Page 5

    ... L6585D 2.2 Functions Table 1. Pin functions Pin num. Name 1 OSC EOI 4 Tch 5 EOLP 6 EOL-R 7 CTR 8 MULT An external capacitor to GND fixes the half-bridge switching frequency with a ±3% precision. Voltage reference able to source up to 240µA; the current sunk from this pin fixes the switching frequency of the half-bridge for each operating state ...

  • Page 6

    ... L6585D latches to avoid MOSFETs damaging, Ground. Current return for both the signal part of the IC and the gate driver. ...

  • Page 7

    ... L6585D 3 Electrical data 3.1 Maximum ratings Table 2. Absolute maximum ratings Symbol Pin V 20 BOOT V 18 OUT dV /dt 18 OUT 10 EOLP F OSC(MAX) P TOT 1. The device has an internal Clamping Zener between GND and the VCC pin, it must not be supplied by a Low Impedance Voltage Source. ...

  • Page 8

    ... CTR > 3.4 = 47K, unless otherwise specified RUN Min Typ Max 11 13.6 14.3 9.6 10.3 16.2 17.2 17.7 250 370 7 370 0. 0.52 COMP 2.45 2.5 2. 2.4 V -2.6 INV = 2 INV 4.2 2.25 1.2 2.1 2.25 2.4 L6585D Unit µA mA µA -1 µA V V/V 1 µA dB MHz ...

  • Page 9

    ... L6585D Table 4. Electrical characteristics (continued) Symbol Pin CTR pin Disable threshold DIS CTR Hysteresys Dynamic PFC overvoltage PFOV CTR Hysteresys Available range as tracking reference CTR PFC section – current sense comparator ICS PFCS Input bias current tLEB PFCS Leading edge blanking ...

  • Page 10

    ... CTR = 27K 2.5 = 91K = 270K or 220 = 91K 720 = 27K L6585D Unit µ 0.1 µA Ω µA Ω µ µ µs 62 KHz KHz µ ...

  • Page 11

    ... L6585D Table 4. Electrical characteristics (continued) Symbol Pin EOL-R Sink/source capability Relamp comparator EOL-R hysteresys Half bridge section – Half-bridge current sense Frequency increase HBCSH HBCS threshold HBCSL HBCS HBCS Latched threshold Half bridge section – Low side gate driver LSD Output low voltage ...

  • Page 12

    ... I CH are shown in Figure 4 and RUN RUN PRE PRE C C IGN IGN EOI EOI Tch Tch OSC OSC C C OSC OSC and R Figure 4: PRE || ) R RUN PRE 4.63 ⋅ ⋅ ---------- - D D 1.52 is typically 34 µ MAX MAX V V REF REF LOGIC LOGIC L6585D ...

  • Page 13

    ... HBCSH threshold (see the “Half-Bridge current control” paragraph). Figure 5, centre and right, shows the L6585D behavior as the lamp gets older doesn’t ignite for a time longer than the pre-heating one (counted by a cycle charge/discharge of the T ...

  • Page 14

    ... Application information 5.1.3 Run mode (time interval C As the voltage at EOI exceeds 1.9V and the lamp has ignited, the L6585D enters Run mode and remains in this condition unless one of the protections (all enabled in this mode) is trigged. The switching frequency reaches the F Equation 4 Figure 5 ...

  • Page 15

    ... L6585D 6 End of life – window comparator To detect the ageing of the lamp with particular attention to the effect appearing as asymmetric rectification, a programmable window comparator has been introduced (centered around “V higher than V REF By means of the resistor connected to the EOLP pin possible to select: 1. the sensing mode: – ...

  • Page 16

    ... W – W/2 – V – are the V values (equal in absolute value) that trigger the window DOWN K Half–window amplitude ± 720mV ± 220mV ± 220mV ± 720mV and R and R and R must (Figure up to 4.63V and then D L6585D 6, right). ...

  • Page 17

    ... Half-bridge current control The information about the lamp current can be obtained by reading the voltage across a sense resistor placed in series to the source of the half-bridge low side MOS. This circuitry is enabled at the end of the pre-heating phase and it enriches the L6585D with two features: ● ...

  • Page 18

    ... IC supply voltage is above the UVLO threshold; ● Reference for EOL in case of tracking reading. ● Disable: by forcing the pin below 0.75V an immediate unlatched shut-down is activated; it can be also used as re-lamp in fact after the pin voltage is above 0.8V a pre- heating/ignition sequence is repeated. 18/25 L6585D ...

  • Page 19

    ... L6585D 9 Re–lamp A second comparator has been introduced on the pin EOL-R; a voltage higher than the internal threshold is read as lamp absence so the chip suddenly stops switching, enters idle mode (low consumption) and is ready for a new pre-heating/ignition sequence as soon as a new lamp is inserted. ...

  • Page 20

    ... IC low consumption (V clamped) cc – Drivers stopped – IC low consumption (V clamped) cc – PFC driver stopped – Drivers stopped – IC low consumption (V clamped) cc L6585D Action required Lamp replacement (EOL-R below 4.63V) (2) Re-lamp cycle (2) Re-lamp cycle (2) Re-lamp cycle (2) Re-lamp cycle When the CTR voltage returns above 0 ...

  • Page 21

    ... L6585D 10 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label ...

  • Page 22

    ... Min. Typ. 0.004 0.014 0.009 0.020 45° (typ.) 0.496 0.393 0.050 0.450 0.291 0.020 8° (max.) L6585D Max. 0.104 0.008 0.096 0.019 0.012 0.512 0.419 0.300 0.050 0.029 ...

  • Page 23

    ... L6585D 11 Order codes Table 9. Order codes Part Number L6585D L6585DTR Package Packaging SO-20 SO-20 Tape and Reel Order codes Tube 23/25 ...

  • Page 24

    ... Revision history 12 Revision history Table 10. Revision history Date 12-Jan-2006 25-Oct-2006 21-Dec-2006 12-Apr-2007 23-May-2007 24/25 Revision 1 Initial release 2 Final datasheet Updated f value on RUN 3 page 8 4 Updated electrical values on 5 Updated Figure 1: Block diagram on page 1 L6585D Changes Table 4: Electrical characteristics on Table 4 and Eq.1 and 4 ...

  • Page 25

    ... L6585D Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...