LYT4216E Power Integrations, LYT4216E Datasheet - Page 3

• Manufacturer Part Number: LYT4216E
• Description: LED Lighting Drivers HighPower LED Driver 35W
• Manufacturer: Power Integrations

Specifications of LYT4216E

• Rohs: yes
• Input Voltage: 85 V to 132 V
• Operating Frequency: 124 kHz to 140 kHz
• Maximum Supply Current: 1.2 mA
• Output Current: 2.83 A
• Maximum Operating Temperature: + 150 C
• Mounting Style: Through Hole
• Package / Case: eSIP-7C
• Minimum Operating Temperature: - 40 C

Pin Functional Description
DRAIN (D) Pin:
This pin is the power FET drain connection. It also provides
internal operating current for both start-up and steady-state
operation.
SOURCE (S) Pin:
This pin is the power FET source connection. It is also the
ground reference for the BYPASS, FEEDBACK, REFERENCE
and VOLTAGE MONITOR pins.
BYPASS (BP) Pin:
This is the connection point for an external bypass capacitor for
the internally generated 5.9 V supply. This pin also provides
output power selection through choice of the BYPASS pin
capacitor value.
FEEDBACK (FB) Pin:
The FEEDBACK pin is used for output voltage feedback. The
current into the FEEDBACK pin is directly proportional to the
output voltage. The FEEDBACK pin also includes circuitry to
protect against open load and overload output conditions.
REFERENCE (R) Pin:
This pin is connected to an external precision resistor and is
used to configure for dimming (LYT4311-4318) and non-TRIAC
dimming (LYT4211-4218) modes of operation.
Figure 4.
www.powerint.com
FEEDBACK (FB)
REFERENCE (R)
BYPASS (BP)
MONITOR (V)
VOLTAGE
Functional Block Diagram.
6.4 V
FEEDBACK
SENSE
SENSE
LINE
3-V
V
BG
1 V
T
OV
I
CAPACITOR
LIM
BYPASS
SELECT
LOGIC
STOP
DC
FB
OFF
MAX
M
I
I
I
OSCILLATOR
V
FB
CLOCK
JITTER
REFERENCE
AUTO-RESTART
CONTROL
PFC/CC
BLOCK
SOFT-START
COUNTER
TIMER
+
-
Comparator
M
V
PRESENT
BG
FAULT
I
VOLTAGE MONITOR (V) Pin:
This pin interfaces with an external input line peak detector,
consisting of a rectifier, filter capacitor and resistors. The
applied current is used to control stop logic for overvoltage (OV),
provide feed-forward to control the output current and the
remote ON/OFF function.
Figure 5.
DC
FB
Exposed Pad
(backside) Internally
Connected to
SOURCE Pin (see
eSIP-7C Package
Drawing)
MAX
OFF
E Package (eSIP-7C)
5.9 V
5.0 V
Pin Configuration.
(Top View)
UNDERVOLTAGE
BYPASS PIN
+
-
OCP
REGULATOR
HYSTERETIC
SHUTDOWN
Lead Bend Outward
from Drawing
(Refer to eSIP-7F Package
Outline Drawing)
THERMAL
5.9 V
LYT4211-4218/4311-4318
CURRENT LIMIT
COMPARATOR
7 D
5 S
4 BP
3 FB
2 V
1 R
Driver
Gate
L Package (eSIP-7F)
R
PI-6843-071112
1
SenseFet
+
-
V
2
V
LEB
FB
SENSE
3
BP
Exposed Pad
(Backside) Internally
Connected to
SOURCE Pin
4
I
LIM
I
S
S
5
D
7
PI-5432-082411
SOURCE (S)
DRAIN (D)
Rev. B 02/13
3