NCP1239 Ver la hoja de datos (PDF) - ON Semiconductor
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NCP1239 Datasheet PDF : 26 Pages
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NCP1239
Table 4. ELECTRICAL CHARACTERISTICS (continued)
(For typical values TJ = 25°C, for min/max Values TJ = −40°C to +125°C, VHV = 125 V, VCC = 11 V unless otherwise noted)
Parameter
Test Conditions
Symbol
Min
Typ
Max Unit
SUPPLY SECTION
Internal IC Consumption
Internal IC Consumption in Skip Cycle
VFB = 3.2 V, FSW = 100 kHz
and CL = 1 nF
VCC = 12 V, VFB = 0.775 V
Driving 8 A/650 V MOSFET
ICC2
ICC(stb)
−
3.1
4.0
mA
−
500
−
mA
Internal IC Consumption in Fault Mode
Fault or Latch
ICC3
−
400
−
mA
Internal IC Consumption before Start-Up
Internal IC Consumption before Start-Up
DRIVE OUTPUT
VCC(min) < VCC < VCC(on)
VCC < VCC(min)
ICC4
ICC5
−
310
−
mA
−
20
−
mA
Rise Time (10−90%)
Fall Time (90−10%)
Source Resistance
Sink Resistance
Peak Source Current
Peak Sink Current
High State Voltage
(Low VCC Level)
High State Voltage
(High VCC Level)
CURRENT COMPARATOR
VDRV from 10 to 90%
VCC = VCC(off) + 0.2 V,
CL = 1 nF
VDRV from 90 to 10%
VCC = VCC(off) + 0.2 V,
CL = 1 nF
DRV High State,
VDRV = 0 V (Note 1)
VCC = VCC(off) + 0.2 V,
CL = 1 nF
DRV Low State,
VDRV = VCC (Note 1)
VCC = VCC(off) + 0.2 V,
CL = 1 nF
VCC = 9 V, RDRV = 33 kW
DRV High State
tR
tF
ROH
ROL
ISOURCE
−
40
−
ns
−
30
−
ns
−
6
−
W
−
6
−
W
−
500
−
mA
ISINK
−
500
−
mA
VDRV(low)
8.8
−
−
V
VCC = VCC(OVP) – 0.2 V,
VDRV(clamp)
11.0
13.5
16.0
V
DRV High State and Unloaded
Input Pull-Up Current
Maximum Internal Current Setpoint
VCS = 0.7 V
TJ from −40°C to +125°C
(No OPP)
IBIAS
VLIMIT1
−
1
−
mA
0.752 0.800 0.848
V
Abnormal Over-Current Fault Threshold
Default Internal Voltage Set Point for
Frequency Foldback Trip Point
TJ = +25°C (No OPP)
~59% of VLIMIT
VLIMIT2
1.10 1.20 1.30
V
VFOLD(CS)
−
475
−
mV
Internal Peak Current Setpoint Freeze
Propagation Delay from VLIMIT Detection to
Gate Off-State
~31% of VLIMIT
DRV Output Unloaded
VFREEZE(CS)
−
tDEL
−
250
−
mV
50
100
ns
Leading Edge Blanking Duration
Abnormal Over-Current Fault Blanking
Duration for VLIMIT3
Number of Clock Cycles before Fault
Confirmation
tLEB1
tLEB2
tCOUNT
−
300
−
ns
−
120
−
ns
−
4
−
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product
performance may not be indicated by the Electrical Characteristics if operated under different conditions.
1. Guaranteed by design
2. CS pin source current is a sum of IBIAS and IOPP, thus at VHV = 125 V is observed the IBIAS only, because IOPC is switched off.
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