TNY288KG Power Integrations, TNY288KG Datasheet - Page 2

• Manufacturer Part Number: TNY288KG
• Description: AC/DC Switching Converters 21.5 W (85-265 VAC) 28 W (230 VAC)
• Manufacturer: Power Integrations
• Type: Off-Line Switcherr

Specifications of TNY288KG

• Rohs: yes
• Output Voltage: 85 V to 265 V
• Input / Supply Voltage (max): 265 V
• Input / Supply Voltage (min): 85 V
• Supply Current: 650 uA
• Mounting Style: SMD/SMT
• Package / Case: eSOP-12B
• Number Of Outputs: 1
• Output Power: 28 W

Figure 3.
Rev. A 09/12
Pin Functional Description
DRAIN (D) Pin:
This pin is the power MOSFET drain connection. It provides
internal operating current for both start-up and steady-state
operation.
BYPASS/MULTI-FUNCTION (BP/M) Pin:
This pin has multiple functions:
•
•
•
MULTI-FUNCTION
It is the connection point for an external bypass capacitor for
the internally generated 5.85 V supply.
It is a mode selector for the current limit value, depending on
the value of the capacitance added. Use of a 0.1 μF capaci-
tor results in the standard current limit value. Use of a 1 μF
capacitor results in the current limit being reduced to that of
the next smaller device size. Use of a 10 μF capacitor results
in the current limit being increased to that of the next larger
device size for TNY285-290.
It provides a shutdown function. When the current into the
bypass pin exceeds ISD, the device latches off until the BP/M
voltage drops below 4.9 V, during a power-down or, when the
UV function is employed with external resistors connected to
the BP/UV pin, by taking the UV/EN pin current below I
minus the reset hysteresis (Typ. 18.75 μA). This can be used
2
VOLTAGE
ENABLE/
115 μA
UNDER-
BYPASS/
(EN/UV)
(BP/M)
Functional Block Diagram.
TNY284-290
ENABLE
1.0 V + V
1.0 V
25 μA
T
6.4 V
LINE UNDER-VOLTAGE
OSCILLATOR
JITTER
LATCH
COUNTER
DC MAX
OVP
RESTART
CLOCK
AUTO-
RESET
PRESENT
FAULT
UV
Figure 4.
EN/UV 1
EN/UV 1
SELECT AND
LIMIT STATE
CAPACITOR
BP/M 2
BP/M 2
CURRENT
MACHINE
BYPASS
Exposed Pad (On Bottom)
Internally Connected to
SOURCE Pin
N/C 3
N/C 4
D 4
D 6
SHUTDOWN
THERMAL
Pin Configuration.
D Package (SO-8C)
S
R
5.85 V
(eSOP-12B)
K Package
4.9 V
Q
Q
+
-
V
I LIMIT
BYPASS PIN
UNDER-VOLTAGE
REGULATOR
EN/UV 1
5.85 V
BP/M 2
8 S
7 S
6 S
5 S
12 S
11 S
10 S
9 S
8 S
7 S
COMPENSATION
CURRENT LIMIT
COMPARATOR
BLANKING
D 4
LEADING
EDGE
LINE
P Package (DIP-8C)
www.powerint.com
+
-
PI-6639-113011
PI-6577-053112
SOURCE
DRAIN
(D)
(S)
7 S
8 S
6 S
5 S