LNK305PN Power Integrations, LNK305PN Datasheet - Page 6

IC OFFLINE SWIT OCP 8DIP

LNK305PN

Manufacturer Part Number
LNK305PN
Description
IC OFFLINE SWIT OCP 8DIP
Manufacturer
Power Integrations
Series
LinkSwitch®-TNr
Type
Off Line Switcherr
Datasheet

Specifications of LNK305PN

Output Isolation
Non-Isolated
Frequency Range
62 ~ 70kHz
Voltage - Output
700V
Power (watts)
12mW
Operating Temperature
-40°C ~ 150°C
Package / Case
8-DIP (0.300", 7.62mm), 7 Leads
Output Voltage
12 V
Input / Supply Voltage (max)
265 VAC
Input / Supply Voltage (min)
85 VAC
Duty Cycle (max)
72 %
Switching Frequency
66 KHz
Supply Current
220 uA
Operating Temperature Range
- 40 C to + 150 C
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
596-1025-5

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Table 2. Common Circuit Confi gurations Using LinkSwitch-TN. (continued on next page)
Rev. I 11/08
High-Side
Buck –
Direct
Feedback
High-Side
Buck –
Optocoupler
Feedback
Low-Side
Buck –
Optocoupler
Feedback
Low-Side
Buck –
Constant
Current LED
Driver
High-Side
Buck Boost –
Direct
Feedback
High-Side
Buck Boost –
Constant
Current LED
Driver
2-6
TOPOLOGY
6
LNK302/304-306
V
+
IN
V
V
V
V
V
+
+
+
+
+
IN
IN
IN
IN
IN
D
LinkSwitch-TN
FB
LinkSwitch-TN
LinkSwitch-TN
BASIC CIRCUIT SCHEMATIC
D
FB
LinkSwitch-TN
D
D
FB
FB
LinkSwitch-TN
LinkSwitch-TN
BP
S
BP
S
S
BP
BP
S
BP
BP
S
S
FB
FB
D
D
2 kΩ
300 Ω
R
10 μF
50 V
SENSE
100 nF
R =
V
R
F
V
I
SENSE
+
O
F
I
O
PI-3755-121003
PI-3753-111903
PI-3751-121003
PI-3752-121003
PI-3754-112103
=
PI-3779-120803
2 V
I
O
I
O
V
V
V
+
V
+
+
+
O
O
O
O
1. Output referenced to input
2. Positive output (V
3. Step down – V
4. Low cost direct feedback (±10% typ.)
1. Output referenced to input
2. Positive output (V
3. Step down – V
4. Optocoupler feedback
5. Minimum no-load consumption
1. Output referenced to input
2. Negative output (V
3. Step down – V
4. Optocoupler feedback
1. Output referenced to input
2. Negative output (V
3. Step up/down – V
4. Low cost direct feedback (±10% typ.)
5. Fail-safe – output is not subjected to input
6. Ideal for driving LEDs – better accuracy
- Accuracy only limited by reference
- Low cost non-safety rated opto
- No pre-load required
- Accuracy only limited by reference
- Low cost non-safety rated opto
- No pre-load required
- Ideal for driving LEDs
voltage if the internal MOSFET fails
and temperature stability than Low-side
Buck constant current LED driver
choice
choice
KEY FEATURES
O
O
O
< V
< V
< V
O
O
O
) with respect to -V
) with respect to -V
O
O
> V
) with respect to +V
) with respect to +V
IN
IN
IN
IN
or V
O
< V
IN
IN
IN
IN
IN

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