tny256 Power Integrations, Inc., tny256 Datasheet - Page 11

• Manufacturer Part Number: tny256
• Description: Energy Efficient, Low Power Off-line Switcher
• Manufacturer: Power Integrations, Inc.

NOTES:
A. For a threshold with a negative value, negative hysteresis is a decrease in magnitude of the corresponding threshold.
B. Total current consumption is the sum of I
C. Since the output MOSFET is switching, it is difficult to isolate the switching current from the supply current at the
D. BYPASS pin is not intended for sourcing supply current to external circuitry.
E. See typical performance characteristics section for BYPASS pin start-up charging waveform.
F. For current limit at other di/dt values, refer to current limit vs. di/dt curve under typical performance
G. This parameter is derived from characterization.
H. This parameter is derived from the change in current limit measured at 5X and 10X of the di/dt shown in the I
I. Auto-restart on time has the same temperature characteristics as the oscillator (inversely proportional to
Auto-Restart
ON-Time
Auto-Restart
Duty Cycle
DRAIN Supply
Voltage
Output EN/UV
Delay
Output Disable
Setup Time
OUTPUT (cont.)
and the sum of I
DRAIN. An alternative is to measure the BYPASS pin current at 6.2 V.
characteristics.
specification.
frequency).
Parameter
S2
and I
Symbol
DSS
t
DC
EN/UV
t
DST
t
AR
when EN/UV pin is open (MOSFET switching).
AR
SOURCE = 0 V; T
(Unless Otherwise Specified)
S1
and I
Conditions
See Figure 14
See Note H
See Note I
T
DSS
j
= 25 C
when EN/UV pin is shorted to ground (MOSFET not switching)
J
= -40 to 125 C
Min
28.9
50
16
Typ
32.0
0.5
20
Max
35.2
10
24
TNY256
Units
7/01
ms
%
C
V
s
s
LIMIT
11