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UCC28051PE4 Datasheet(PDF) 5 Page - Texas Instruments

Part # UCC28051PE4
Description  TRANSITION MODE PFC CONTROLLER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

UCC28051PE4 Datasheet(HTML) 5 Page - Texas Instruments

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UCC28050, UCC28051
UCC38050, UCC38051
SLUS515F−SEPTEMBER 2002 − REVISED MARCH 2009
5
www.ti.com
ELECTRICAL CHARACTERISTICS
TA = 0_C to 70_C for the UCC3805x, –40_C to 105_C for the UCC2805x, TA = TJ, VCC = 12 V.
zero power
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Zero power comparator threshold(1)
Measured on VCOMP
2.1
2.3
2.5
V
zero current detect
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Input threshold (rising edge) (1)
1.5
1.7
2.0
V
Hysteresis(1)
250
350
450
mV
Input high clamp
I = 3 mA
5
6
V
Input low clamp
I = −3 mA
0.30
0.65
0.90
V
Restart time delay
200
400
μs
current sense comparator
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Input bias current
CS = 0 V
0.1
1.0
μA
Input offset voltage(1)
−10
10
mV
Delay to output
CS to DRV
300
450
ns
Maximum current sense threshold voltage
1.55
1.70
1.80
V
PFC gate driver
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
GT1 pull up resistance
IOUT = –125 mA
5
12
Ω
GT1 pull down resistance
IOUT = 125 mA
2
10
Ω
GT1 output rise time
CLOAD = 1 nF,
RLOAD = 10 Ω
25
75
ns
GT1 output fall time
CLOAD = 1 nF,
RLOAD = 10 Ω
10
50
ns
(1)
Ensured by design. Not production tested.


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