HVLED807PF
Offline LED driver with primary-sensing and
high power factor up to 7 W
Datasheet
−
production data
Features
■
■
■
■
■
■
■
■
■
High power factor capability (> 0.9)
800 V, avalanche rugged internal 11
Ω
power
MOSFET
Internal high-voltage startup
Primary sensing regulation (PSR)
+/- 5% accuracy on constant LED output
current
Quasi-resonant (QR) operation
Optocoupler not needed
Open or short LED string management
Automatic self supply
Table 1.
Device summary
Package
SO16N
Tape & Reel
Packaging
Tube
Order code
SO16N
Applications
■
■
AC-DC LED driver bulb replacement lamps up
to 7 W, with high power factor
AC-DC LED drivers up to 7 W
HVLED807PF
HVLED807PF
TR
Description
The HVLED807PF is a high-voltage primary
switcher intended for operating directly from the
rectified mains with minimum external parts and
enabling high power factor (> 0.90) to provide an
efficient, compact and cost effective solution for
LED driving. It combines a high-performance low-
voltage PWM controller chip and an 800 V,
avalanche-rugged Power MOSFET, in the same
package. There is no need for the optocoupler
thanks to the patented primary sensing regulation
(PSR) technique. The device assures protection
against LED string fault (open or short).
February 2013
This is information on a product in full production.
Doc ID 023464 Rev 5
1/36
www.st.com
36
Contents
HVLED807PF
Contents
1
Principle application circuit and block diagram . . . . . . . . . . . . . . . . . . . 4
1.1
1.2
Principle application circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2
Pin description and connection diagrams . . . . . . . . . . . . . . . . . . . . . . . 7
2.1
2.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3
Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
3.2
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4
Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
Application information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Power section and gate driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
High voltage startup generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Secondary side demagnetization detection and triggering block . . . . . . . 18
Constant current operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Constant voltage operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Voltage feed-forward block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Burst-mode operation at no load or very light load . . . . . . . . . . . . . . . . . . 25
Soft-start and starter block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Hiccup mode OCP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
High Power Factor implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Layout recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
5
6
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
2/36
Doc ID 023464 Rev 5
HVLED807PF
List of figures
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
Figure 14.
Figure 15.
Figure 16.
Figure 17.
Figure 18.
Figure 19.
Figure 20.
Figure 21.
Figure 22.
Figure 23.
Figure 24.
Figure 25.
Figure 26.
Application circuit for high power factor LED driver - single range input. . . . . . . . . . . . . . . . 4
Application circuit for standard LED driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Pin connection (top view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
OFF-state drain and source current test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
COSS output capacitance variation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Startup current test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Quiescent current test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Operating supply current test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Quiescent current during fault test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Multi-mode operation of HVLED807PF (constant voltage operation) . . . . . . . . . . . . . . . . . 16
High-voltage start-up generator: internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Timing diagram: normal power-up and power-down sequences . . . . . . . . . . . . . . . . . . . . 18
DMG block, triggering block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Drain ringing cycle skipping as the load is progressively reduced . . . . . . . . . . . . . . . . . . . 19
Current control principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Constant current operation: switching cycle waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Voltage control principle: internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Feed-forward compensation: internal schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Load-dependent operating modes: timing diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Hiccup-mode OCP: timing diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
High power factor implementation connection - single range input . . . . . . . . . . . . . . . . . . 28
Suggested routing for the led driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
SO16N mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
SO16N drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
SO16N recommended footprint (dimensions are in mm) . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Doc ID 023464 Rev 5
3/36
1
1.1
Figure 1.
Principle application circuit and block diagram
Principle application circuit
Application circuit for high power factor LED driver - single range input
3
Cin
Rsnubber
Bridge Diode
2
Cin
Csnubber
J4
CON1
Lf
Rf
U1
HVLED8xxPF
1
R1 (500 - 1.5k)CS 2
220pF-1nF
RB
C_Vcc (10uF MIN)
COS Filter (1uF)
ROS
CS
C_ILED (10uF)
Rf b
Rf (8k-15k)
VCC 3
4
5
DMG 6
Cf (330nF-680nF)
7
VCC
GND
ILED
DMG
COMP
N.A.
SOURCE
DRAIN
CS
DRAIN
DRAIN
DRAIN
16
15
14
13
4
S nubber D iode
4/36
Doc ID 023464 Rev 5
Principle application circuit and block diagram
Lin
VIN
1
2
3
4
T1
10
9
8
7
O u tp o u t D i o d e
Vout
J1
CON1
R12
C12
C13
Minimum Load
Cout SMD
J3
CON1
EMI FILTER
Rf
J2
CON1
F1
1A_DIP
Lf
+
1
Cout Bulk
5
6
-
Cf
Cf
TRANSFORMER
C10
VIN
D5
RA
Rsense
Rsense
Y 1 - SAFETY
CS
DMG
RPF
D4
Rdmg
VCC
NA 8
Cp (1n-10nF)
D2
1N 4148
R-VCC (10-100ohm)
C_VCC (470nF)
HVLED807PF
AM13207v1
HVLED807PF
Figure 2.
Application circuit for standard LED driver
VIN
1
2
T2
10
9
8
7
O u tp o u t D i o d e 1
Vout
J5
CON1
R18
EMI FILTER
Rf
J7
CON1
F2
1A_DIP
Lf
Csnubber
Bridge Diode
2
3
+
1
Rsnubber
3
4
C16
Cout Bulk
C27
Minimum Load
Cout SMD
J6
CON1
Cin
5
6
-
Cf
Cf
Lf
Rf
U2
HVLED8xxPF
1
2
SOURCE
DRAIN
CS
DRAIN
C_Vcc (10uF)
VCC 3
4
5
DMG 6
Cf (330nF/680nF)
7
VCC
GND
ILED
DMG
COMP
N.A.
DMG
Rdmg
DRAIN
DRAIN
16
15
14
13
J8
CON1
4
TRANSFORMER
Doc ID 023464 Rev 5
5/36
S nubber D iode
C23
Rsense
Rsense
Y 1 - SAFETY
Principle application circuit and block diagram
C_ILED (10uF)
Rf b
Rf (8.2k-15k)
VCC
NA 8
Cp (1nF/10nF)
D8
1N 4148
R-VCC (10ohm)
C_VCC (470nF)
AM13208v1
嵌入式系统
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