lnk501 Power Integrations, Inc., lnk501 Datasheet - Page 12

• Manufacturer Part Number: lnk501
• Description: Energy Ef?cient, Cv/cc Switcher For Very Low Cost Chargers And Adapters
• Manufacturer: Power Integrations, Inc.

12
CONTROL Pin
Charging Current
Control/Supply/
Discharge Current
Auto-Restart
Threshold Voltage
Auto-Restart
Hysteresis Voltage
Auto-Restart Duty
Cycle
Auto-Restart
Frequency
CIRCUIT PROTECTION
Self-Protection
Current Limit
I
Current Limit at
Auto-Restart
Power Up Reset
Threshold Voltage
Leading Edge
Blanking Time
Current Limit Delay
Thermal Shutdown
Temperature
Thermal Shutdown
Hysteresis
SHUTDOWN/AUTO-RESTART
2
f Coefficient
Parameter
LNK501
I
2/05
Symbol
V
V
DC
I
V
C(RESET)
I
C(AR)hyst
LIM(AR)
t
I
I
f
C(CH)
t
I
C(AR)
I
IL(D)
CD1
CD2
(AR)
LEB
LIM
2
(AR)
f
T
T
T
J
J
J
SOURCE = 0 V; T
= 25 °C
= 25 °C Output MOSFET Enabled
= 25 °C Output MOSFET Disabled
C1 = 0.22 µF (See Figure 12)
(Unless Otherwise Specified)
Short Circuit Applied at
Power Supply Output
I
I
C
C
di/dt = 90 mA/µs
di/dt = 90 mA/µs
See Notes C, D
= I
= I
Conditions
See Figure 12
See Note C
T
T
T
CD1
DCT
S2 Open
J
J
J
I
C
= 25 °C
= 25 °C
= 25 °C
, T
, T
= I
V
J
J
J
DCT
C
V
= 25 °C
= 25 °C
= -40 to 125 °C
C
= 5.15 V
= 0 V
2547
Min
0.95
-4.5
-2.3
241
200
125
0.7
1.5
-3.25
2710
Typ
1.06
2.75
-1.3
300
254
158
300
100
135
0.9
5.6
0.9
70
8
Max
2873
1.14
-0.3
267
1.1
4.0
-2
Units
A
mA
mA
mA
mA
Hz
ns
ns
°C
°C
%
2
V
V
V
Hz