TOP412/414
ABSOLUTE MAXIMUM RATINGS(1)
Operating Junction Temperature(2) ................ -40 to 150 °C
Lead Temperature(3) ................................................ 260 °C
DRAIN Voltage ............................................ -0.3 to 350 V
CONTROL Voltage ..................................... - 0.3 V to 9 V
Storage Temperature ..................................... -65 to 150 °C
Notes:
1. All voltages referenced to SOURCE, TA = 25 °C.
2. Normally limited by internal circuitry.
3. 1/16" from case for 5 seconds.
THERMAL IMPEDANCE
1. Soldered to 1 sq. inch (645 mm2), 2 oz. (610 gm/m2) copper clad.
Thermal Impedance (θJA) ...................................15 °C/W(1)
Thermal Impedance (θJC) ..................................... 11 °C/W
Conditions
(Unless Otherwise Specified)
Specification
Symbol
See Figure 11
Min
Typ
Max
Units
SOURCE = 0 V
TJ = -40 to 125 °C
CONTROL FUNCTIONS
Output
IC = 4 mA, Tj = 25 °C
fOSC
108
64
120
67
132
70
kHz
%
Frequency
Maximum
Duty Cycle
IC = ICD1+ 0.5 mA, See Figure 9
DCMAX
1.0
1.3
1.8
2.1
3.0
3.3
TOP412
TOP414
Minimum
Duty Cycle
IC = 10 mA,
See Figure 9
DCMIN
%
IC = 4 mA, TJ = 25 °C
PWM
Gain
%/mA
%/mA/°C
mA
-21
-16
-0.05
2.5
-11
See Figure 4
PWM Gain
Temperature Drift
See Note A
External
Bias Current
IB
1.5
10
4
See Figure 4
IC = 4 mA, TJ = 25 °C
Dynamic
Impedance
ZC
Ω
15
22
See Figure 10
Dynamic Impedance
Temperature Drift
%/°C
0.18
A
4/99
8
POWERINT [ Power Integrations ]
