TS TS19702CX6 Schematic [ru]
TS19702
High Power Factor Corrector LED Driver
1/9 Version: A12
SOT-26
Description
The TS19702 is a h ig hly-integrated, lo w startup curr e n t , average current mode, one cycle control PFC and fixed
switching frequency PWM controller. These fun c tio n s enable the LED driver to easily meet the accuracy
average LE D current and high power factor requirements. The integrated functions also include the LED short
protection, open protection, and internal over temperature protection. The COMP pin controls the duty by
connected an RC compensation network to ground and formi ng the closed loop feedback control. To protect the
external power MOSFET from being damaged by supply over voltage, the TS19702 Output pin voltage is
clamped to about 15V.
Features
● High Power Factor by One Cycle Control
● Accuracy Constant Current
● Low BOM Cost
● Linear Dimming on DIM Pin
● Average Current / Fixed Frequency Control
● Gate Output Voltage Clamp
● LED Open Protection (OVP)
● LED Short Protection (SCP)
● Over Current Protection (OCP)
● Internal OTP Protection
● 300mA Driving Capability for Output Pin
● Application voltage range: 80V
AC
~ 308VAC
Application
● E27, T5, T8 LED lighting
● LED Lighting Applications
Ordering Information
Part No.
Package
Packing
TS19702CX6 RFG
SOT-26
3kpcs / 7” Reel
Note: “G” denote for Halogen Free Product
Absolute Maximum Ratings (Ta = 25
o
C unless otherwise noted)
Parameter
Symbol
Limit
Unit
Supply Voltage
VCC
30
V
Compensation Voltage
V
COMP
-0.3 ~ 7
V
Dimming Pin
V
DIM
-0.3 ~ 7
V
Current Sense Pin
V
CS
-0.3 ~ 7
V
Output Pin
V
OUT
15
V
Power Dissipation @ TA=85ºC
PD
250
mW
Operating Ambient Temperature
T
OPR
-20 ~ +85
o
C
Junction Temperature
TJ
+150
o
C
Storage Temperature Range
T
STG
-65 ~ +150
o
C
Thermal Resistance - Junction to Ambient
RӨJA
250
o
C/W
ESD Voltage Protection
HBM
2
KV
MM
200
V
Pin Definition:
1. VCC
2. Ground
3. Output
4. Dimming
5. Compensation
6. Current Sense
TS19702
High Power Factor Corrector LED Driver
2/9 Version: A12
Electrical Characteristics (V
CC
=15 , TA=25℃, unless otherw is e s p ecified.)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Supply Voltage
Startup Current (VCC=UVLO on - 1V)
I
START
-- 8 15
µA
Operating Current (with 1nF load on OUT pin),
Vcomp = 2.5V
I
OPR
-- 2 3
mA
Operating Current (with 1nF load on OUT pin),
Protection Tripped (OCP, OVP, SCP, OTP)
I
OPR
--
0.7 1 mA
UVLO(off)
UVLO
OFF
7 8 9
V
UVLO(on)
UVLOON
14
15
16
V
OVP Level on VCC Pin
V
OVP
26.5
28
29.5
V
OVP De-Bounce Time
T
OVP
--
40
--
µs
Voltage Feedback
Feedback Reference Voltage
VFB
0.196
0.200
0.204
V
Tran-Conductance
--
120
--
µs
Output Sink Current
I
SINK
--
12
--
µA
Output Source Current
I
SOURCE
--
12
--
µA
Current Sensing
Input Over Voltage Protection
V
IN-PROTECT
0.7
0.80
0.9
V
Open Loop Voltage, CS Pin Open
VCS
-- 5 --
V
Leading-Edge Blanking Time
TLE
--
410
--
ns
Delay to Output
T
O-DELAY
--
100
220
ns
Switching Frequency
Switching Frequency
FSW
42
45
48
KHz
Maximum Duty
D
(MAX)
90
--
--
%
Frequency Jitter Range
--
+/-4
--
%
Temp. Stability (-40°C ~ 125°C)
TEMP
STB
--
--
6
%
Voltage Stability (VCC = 11V~25V)
V
STB
--
--
1
%
GATE DRIVER OUTPUT
Rising Time, Load Capacitance =1000pF
T
RISING
--
160
320
ns
Falling Time, Load Capacitance =1000pF
T
FALLING
--
80
160
ns
VGATE-Clamp (VCC= 25V)
V
GATE
--
13.5
15
V
DIM INPUT SECTION
Saturation Threshold Voltage
SATTH
3.0
--
--
V
Linear Dimming Range
DIM
0.3
--
3.0
V
LED Current off Threshold Voltage
IOFFTH
--
--
0.3
V
Current Source
CS
290
300
310
µA
OTP SECTION
OTP Trip Point
OTPTP
140
150
160 oC
OTP Release Point
OTPRP
120
130
140 oC
OTP Threshold Level
OTPTH
--
20
-- oC
OTP De-Bounce Time
OTP
DBT
40
80
120
µs
Note 1: OCP, SCP, OTP: Auto Recovery Type
Note 2: OVP, Auto Recovery Type (Latch off type optional)
TS19702
High Power Factor Corrector LED Driver
3/9 Version: A12
Function Block
Pin Description
Pin No.
Name
Function
1
VCC
Power supply pin
2
GND
Ground pin
3
OUT
The output driver for driving the external MOSFET
4
DIM
Dimming control pin by input a DC voltage
5
COMP
Feedback compensation network
6
CS
Current sense pin, connect to sense the MOSFET current
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