TOP242-249
Conditions
(Unless Otherwise Specified)
See Figure 53
Parameter
Symbol
Min
Typ Max
Units
SOURCE = 0 V; TJ = -40 to 125 °C
CONTROL FUNCTIONS (cont.)
PWM Gain
DCreg
IC = 4 mA; TJ = 25 °C
-28
-23
-18
%/mA
PWM Gain
Temperature Drift
%/mA/°C
-0.01
See Note A
1.2
1.6
2.0
2.6
3.0
4.0
TOP242-245
External Bias
Current
lB
lC(OFF)
ZC
mA
See Figure 7
TOP246-249
TOP242-245
TOP246-249
6.0
6.6
7.0
8.0
CONTROL
Current at 0%
Duty Cycle
TJ = 25 °C
mA
Ω
Dynamic
Impedance
IC = 4 mA; TJ = 25 °C
See Figure 51
10
15
22
Dynamic
0.18
Impedance
%/°C
kHz
Temperature Drift
Control Pin
Internal Filter Pole
7
SHUTDOWN/AUTO-RESTART
VC = 0 V
VC = 5 V
-5.0
-3.0
-3.5
-1.8
-2.0
-0.6
Control Pin
lC (CH)
mA
TJ = 25 °C
Charging Current
Charging Current
Temperature Drift
0.5
5.8
See Note A
%/°C
Auto-restart Upper
VC(AR)U
V
V
V
Threshold Voltage
Auto-restart Lower
Threshold Voltage
VC(AR)L
4.5
0.8
4.8
1.0
5.1
Auto-restart
VC(AR)hyst
Hysteresis Voltage
Auto-restart Duty
DC(AR)
4
8
%
Cycle
Auto-restart
f(AR)
1.0
Hz
Frequency
E
7/01
August 8, 2000
35
POWERINT [ Power Integrations ]
