CL220.pdf 데이터시트 (총 13 페이지) - 파일 다운로드 CL220 데이타시트 다운로드

No Preview Available !

CL220
Simple, 220V, 20mA, Temperature-Compensated,
Constant-Current, LED Driver IC
Features
• 5.0 to 220V operating range (VA-B)
• 20mA ±10% at 5.0 - 160V
• 0.01% / °C typical temperature coefficient
• Packages Types:
- TO-252 (D-PAK)
- TO-220
• Can be paralleled for higher current
Applications
• Industrial lamp indicators
• Signage
• Accent lighting
• Constant current source
• Constant current sink
Description
CL220 is a high voltage, temperature-compensated,
20mA constant current regulator. The device operates
at up to 220V, and is accurate to ±10% over a 5 - 160V
range. The device can be used as a two-terminal, con-
stant-current source or a constant-current sink.
A typical application for CL220 is to drive LEDs with a
constant current of 20mA. Multiple CL220s can also be
used in parallel to provide higher currents such as
40mA, 60mA, 80mA, and so on. The device is available
in the TO-252 (D-PAK) and TO-220 packages.
2015 Microchip Technology Inc.
DS20005413A-page 1

No Preview Available !

CL220
Package Type
VB
NC
VA
TO-252 (D-PAK)
See Table 2-1 for pin information
Typical Application Circuit
VB
NC
VA
VB
TO-220
Up to 220V
+ VLED(TOTAL)
10nF
ILED
20mA
VA
CL220
Functional
Circuit Diagram
VA
VB
+
Control Circuit
and Temperature
Compensation
VLED(TOTAL)
VB
Functional Circuit Diagram
VA
Control Circuit
and Temperature
Compensation
VB
Equivalent Block Diagram
VA
20mA
VB
DS20005413A-page 2
2015 Microchip Technology Inc.

No Preview Available !

CL220
1.0 ELECTRICAL CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
Operating voltage, VA-B.................................................................................................................................................................. 240V
Operating junction temperature, TJ.............................................................................................................................. -40°C to +125°C
Storage temperature, TS .............................................................................................................................................. -55°C to +150°C
† Notice: Stresses above those listed under “Maximum Ratings” may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at those or any other conditions above those indicated in the
operational listings of this specification is not implied. Exposure to maximum rating conditions for extended periods
may affect device reliability.
TABLE 1-1: ELECTRICAL CHARACTERISTICS
Electrical Specifications: Unless otherwise specified, for all specifications TJ = +25°C
Symbol Parameter
Min Typ Max Units Conditions
VA-B
Operating voltage
5.0 - 220
IA-B/T IA-B temperature coefficient
- 0.01 -
RA-B
Dynamic resistance
- 300 -
18 20 22
IAB Output current
18 - 25
- - 22
IOS Turn-on overshoot current
- 25 -
tOS Overshoot duration
-1-
tDLY Turn-on delay
- 10 -
tRISE
Turn-on rise time
- 200 -
Note 1: Obtained by Characterization; Not 100% tested in production.
V
%/°C
k
mA
mA
µs
µs
ns
VA-B= 45V, Tj= -40°C to
+100°C (Note 1)
VAB= 4.0 - 160V
VAB= 160 - 220V (Fig. 4)
VAB= 0 - 4.0V
VT= 45V (Fig. 5) (Note 1)
VT= 45V (Fig. 5) (Note 1)
VT= 45V (Fig. 5) (Note 1)
VT= 45V (Fig. 5) (Note 1)
TABLE 1-2: THERMAL RESISTANCE, JUNCTION TO AMBIENT
Package
θja Units
Min Typ Max
Conditions
TO-252 (D-PAK) – 81 – °C/W Soldered to 2.0 cm2 copper area exposed to
TO-220
– 29 – °C/W free air (Note 1)
Note 1: Obtained by Characterization; Not 100% tested in production.
2.0 PIN DESCRIPTION
The locations of the pins are shown in Package Type
and Packaging Information.
TABLE 2-1: PIN DESCRIPTION
Pin # TO-252
Pin # TO-220
Function
1 1 VA
4 2, 4 VB
3 3 NC
Description
Current flows into this pin
Current flows out of this pin
No connection
2015 Microchip Technology Inc.
DS20005413A-page 3

No Preview Available !

CL220
3.0 APPLICATION INFORMATION
Figures 3-1- 3-6 show the characteristics and timing for CL220.
1.02
5V
45V
1.01
90V
1.00
0.99
0.98-55
FIGURE 3-1:
30
-35 -15
5 25
45 65
Junction Temperature (°C)
Temperature Characteristics
85
105 125
145
25
20
15
10
5
0 0 5 10 15
FIGURE 3-2:
Output Characteristics
scale change
20
VA-B (V)
60
100 140 180
220
DS20005413A-page 4
2015 Microchip Technology Inc.

No Preview Available !

CL220
FIGURE 3-3:
VT
VA-B
Turn-on overshoot due to
0V tDLY
start-up characteristics
of internal circuitry
tRISE
tOS
IOS
100%
IA-B
0mA
90%
10%
Inrush spike due to charging
of parasitic capacitances
and dV/dt CDG feed-thru
Timing Diagram
VT
IA-B
CL220
1.0µF film
FIGURE 3-4:
Timing Test Circuit
CL220
VA
CL220
VA
CL220
VA
CL220
VA
Up to 220V
+VLED(TOTAL)
10nF
VB
ILED
20mA
VB
ILED
20mA
VB
ILED
20mA
FIGURE 3-5:
CL220 for Multiple LED Strings
ILED
20mA
VB
+
VLED(TOTAL)
2015 Microchip Technology Inc.
DS20005413A-page 5