ncp1081 ON Semiconductor, ncp1081 Datasheet - Page 10

• Manufacturer Part Number: ncp1081
• Description: Integrated High Power Poe-pd Interface & Dc-dc Converter Controller
• Manufacturer: ON Semiconductor

12. Conditions
13. Conditions
Table 3. Operating Conditions
CURRENT CONSUMPTION
THERMAL SHUTDOWN
THERMAL RATINGS
IvportP
IvportP
TSD
Thyst
Ta
Tj
Symbol
a. No current through the pass−switch
b. DC−DC controller inactive (SS shorted to RTN)
d. VPORTP = 57 V
a. No current through the pass−switch
b. Oscillator frequency = 100 kHz
d. Aux winding not used
e. 2 nF on GATE, DC−DC controller enabled
c. No external load on VDDH and VDDL
c. No external load on VDDH and VDDL
f. VPORTP = 57 V
1
2
VPORTP internal current
consumption (Note 12)
VPORTP internal current
consumption (Note 13)
Thermal shutdown threshold
Thermal hysteresis
Ambient temperature
Junction temperature
Parameter
http://onsemi.com
Min.
150
−40
−
−
−
−
10
Typ.
2.5
4.7
15
−
−
−
Max.
125
150
3.5
6.5
85
−
−
Units
°C Tj
°C Tj
mA
mA
°C
°C
°C
DC−DC controller off
DC−DC controller on
Tj = junction temperature
Tj = junction temperature
Parametric values guaranteed
Max 1000 hours
Conditions