LED Driver. HT7L5610 Datasheet

HT7L5610 Driver. Datasheet pdf. Equivalent

HT7L5610 Datasheet
Recommendation HT7L5610 Datasheet
Part HT7L5610
Description Primary Side Regulation Off Line LED Driver
Feature HT7L5610; HT7L5610 Primary Side Regulation Off Line LED Driver with Active PFC Features • Primary-side curre.
Manufacture Holtek Semiconductor
Datasheet
Download HT7L5610 Datasheet




Holtek Semiconductor HT7L5610
HT7L5610
Primary Side Regulation Off Line
LED Driver with Active PFC
Features
• Primary-side current sensing and regulation
without an opto-coupler
• Integrated 650V MOSFET
• Wide AC input range - from 85VAC to 265VAC
• High Power Factor of >0.9 without additional
circuitry
• Accurate constant current (< ±3%)
• Low start-up current which reduces power
dissipation
• Full protection functions for enhanced safety
Gate driver output voltage clamp
VCC over voltage protection - VCC OVP
VCC under-voltage lockout with hysteresis - VCC
UVLO
Output LED string over current protection
Output LED string short / open protection
On-chip over temperature protection - OTP
• 8-pin DIP package
Applications
• General illumination
• E26/27, T5/T8 LED Lamp
• Other LED Lighting Applications
General Description
The HT7L5610 is a single-stage, isolated, primary-
side offline LED lighting controller that has the
benefits of high power factor and a fully integrated
power MOSFET. Control of this power MOSFET is
implemented by regulating a constant LED current
accurately from the primary-side. This can signifi-
cantly simplify the LED lighting system design by
eliminating the secondary-side feedback components
and the usually required opto-coupler. The extremely
low start-up current and quiescent current reduces the
total power consumption to provide a high efficiency
solution for lighting applications.
The device provides several protection functions,
which include VCC Under Voltage Lockout (UVLO),
Over Current Protection (OCP), Output LED String
Open Protection, Output LED String Short Protection,
VCC Over Voltage Protection (OVP) and Leading-
Edge Blanking (LEB) for current sensing. Additional-
ly and to ensure system reliability, the device includes
a fully integrated thermal protection function.
The high level of functional integration minimises the
external component count giving major advantages
in terms of cost and circuit board area. The device is
supplied in an 8-pin DIP package.
Application Circuits
ACIN
VOUT+
VOUT-
SOURCE DRAIN
CS DRAIN
GND
VCC
COMP
ZCD
HT7L5610
Rev. 1.00
1 September 08, 2015



Holtek Semiconductor HT7L5610
Block Diagram
VCC
ZCD
COMP
UVLO
VCC OVP
OTP
OCP
ZCD OVP
ZCD
Comparator
Min
Off Time
PWM
Generator
Starter
Logic
Control
LEB
S&H
EA
0.3V
CS
Reference
& Bias
OTP
OTP
Driver
OCP
OCP
GND
HT7L5610
DRAIN
SOURCE
Pin Assignment
SOURCE
CS
GND
COMP
18
27
36
45
HT7L5610
8 DIP-A
DRAIN
DRAIN
VCC
ZCD
Pin Description
Pin No.
Symbol
1 SOURCE
2 CS
3 GND
4 COMP
5 ZCD
6 VCC
7,8 DRAIN
Description
Internal high voltage power MOSFET source terminal
Current sense pin. A resistor is connected to sense the MOSFET current.
Ground pin
Loop compensation pin. A capacitor is placed between COMP and GND.
Connected to a resistor divider from an auxiliary winding to sense the output voltage.
Power supply pin
Internal high voltage power MOSFET drain terminal
Rev. 1.00
2 September 08, 2015



Holtek Semiconductor HT7L5610
HT7L5610
Absolute Maximum Ratings
Parameter
Internal MOSFET Drain Source Voltage
VCC Supply Voltage
Input Voltage to CS Pin
Output Voltage at COMP Pin
Maximum Current at ZCD Pin
Maximum Operating Junction Temperature
Storage Temperature Range
Range
-0.3V to 650V
-0.3V to 27V
-0.3V to 6V
-0.3V to 6V
3mA (source), 3mA (sink)
150°C
-55°C to 150°C
Recommended Operating Ranges
Parameter
VCC Supply Voltage
Operating Junction Temperature
Output Power
Range
10V~20V
-40°C~125°C
13.8W@240mA, 90~265VAC
21.8W@365mA,180~265VAC
Electrical Characteristics
(VCC=12V, Ta=25°C)
Symbol
Parameter
Power Supply (VCC Pin)
VCCON UVLOON
VCCOFF UVLOOFF
VCCHYS UVLO Hysteresis
VOVP1
VCC OVP Trip Point
ISTART
Start-up Current
IQ Quiescent Current
Error Amplifier
VFB Feedback Reference Voltage
Current Sense Comparator
tLEB
VOCP
VSCP
Leading Edge Blanking Time
Current Limit Threshold
ZCD Pin Short Circuit Protection
Threshold
Zero Current Detector
VZCDH
VZCDL
VZCDA
VZCDT
VOVP2
tB_OVP
Starter
Upper Clamp Voltage
Lower Clamp Voltage
Positive-going Edge
Negative-going Edge
ZCD pin OVP Level
OVP Detection Blanking Time
tSTART
Start Timer Period
tOFF Minimum Off Time
Over Temperature Protection
OTP Over Temperature Trip Point
Power MOSFET
RDS
BVDSS
Power MOSFET Switch ON Resistance
Power MOSFET Drain-Source Voltage
Test Condition
Before turn-on, @VCC=UVLOON-1V
No switching
Ta=25°C
IZCD=2.5mA
IZCD= -2.5mA
@ VGS=10V, IDS=0.5A
@ VGS=0V, IDS<250μA
Min
10
21.5
291
2.88
650
Typ
18
7.5
24.0
10
0.7
300
400
1.55
0.40
6.1
-0.7
150
50
3.20
1
40
6.4
150
4.3
Max
26.5
20
1.0
309
3.52
Unit
V
V
V
V
μA
mA
mV
ns
V
V
V
V
mV
mV
V
μs
μs
μs
°C
Ω
V
Rev. 1.00
3 September 08, 2015







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