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What is TD8203?

This electronic component, produced by the manufacturer "Techcode", performs the same function as "White LED Step-up Converter".


TD8203 Datasheet PDF - Techcode

Part Number TD8203
Description White LED Step-up Converter
Manufacturers Techcode 
Logo Techcode Logo 


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Total 14 Pages



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Techcode®
White LED Step-up Converter
DATASHEET
TD8203
General Description
Features
The TD8203 is a current-mode and fixed frequency boost
converter with an integrated N-FET to drive white LEDs.
The series connection allows the LED current to be
identical for uniform brightness. Its low on-resistance of
NFET and low feedback voltage reduce power loss and
achieve high efficiency. Fast switching frequency(1.5MHz
typical) allows using small-size inductor and both of input
and output capacitors. An over voltage protection
function,which monitors the output voltage via OVP pin,
stops switching of the IC if the OVP voltage exceeds the
over voltage threshold. An internal soft-start circuit
eliminates the inrush current during start-up.
The TD8203 also integrates under-voltage lockout,
overtemperature protection, and current limit circuits to
protect the IC in abnormal conditions. The TD8203 is
available in a SOT-23-6A
Wide Input Voltage from 2.7V to 6V
Fixed 1.5MHz Switching Frequency
Reference Voltage : 0.2V
PWM Brightness Control with Wide Frequency
Range of 100Hz to 100kHz
Build-In Power MOSFET : 0.2Ω
Open-LED Protection
Under-Voltage Lockout Protection
Over-Temperature Protection
<1mA Quiescent Current during Shutdown
SOT-23-6A
Halogen and Lead Free Available
RoHS Compliant
Applications
White LED Display Backlighting
Cell Phone and Smart Phone
PDA, PMP, MP3
Digital Camera
December, 20, 2011
Techcode Semiconductor Limited
1
www.techcodesemi.com

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TD8203 equivalent
Techcode®
White LED Step-up Converter
Electrical Characteristics
The following specifications apply for VIN =3.6V TA=25 oC, unless specified otherwise.
DATASHEET
TD8203
Symbol Parameter
VIN
IDD1
IDD2
ISD
VREF
Input Voltage
Input DC Bias Current
UVLO Threshold Voltage
UVLO Hysteresis Voltage
Regulated Feedback Voltage
IFB
FSW
RON
ILIM
DMAX
FB Input Current
Switching Frequency
Power Switch On Resistance
Power Switch Current Limit
LX Leakage Current
LX Maximum Duty Cycle
Over Voltage Threshold
TOTP
Over Voltage Hysteresis
OVP Leakage
Enable Voltage Threshold
Shutdown Voltage Threshold
EN Leakage Current
EN Minimum On Pluse Width
Over-Temperature Protection
Over-Temperature Protection
Test Conditions
VFB=0.4V,no switching
TD8203
Min. Typ.
2.5
- 300
VFB=0V, switching
EN=GND
VIN Rising
VIN Falling
VIN=2.7V~6V, TA = 25 oC
VIN=2.7V~6V, TA = -40 ~ 85 oC
-
-
2.0
50
0.185
0.18
-50
1.25
VEN = 0V, VLX = 0V or 6V, VIN = 6V
-1
92
VOUT Rising
TD8203A
TD8203B
22
14.5
VOVP Falling
-
VOVP =20V
-
VEN Rising
1
VEN Falling
-
VEN = 0 ~ 6V, VIN = 6V
-2
VEN = 0 ~ 6V, VIN = 6V, PWM-
DTJimRimsinimgg
FTrJeFqaulleinngcy=100Hz to 100kHz
2
-
2.2
100
0.2
1.5
0.2
2
95
24
16
3
50
-
-
-
800
150
40
Max.
6
-
5
1
2.4
150
0.215
0.22
50
1.75
1
98
27.5
20
-
-
-
0.4
2
-
Unit
V
uA
mA
µA
V
mV
V
nA
MHz
A
uA
%
V
V
nA
V
V
uA
ns
oC
oC
December, 20, 2011
Techcode Semiconductor Limited
5
www.techcodesemi.com


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Part Details

On this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for TD8203 electronic component.


Information Total 14 Pages
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