Datasheet

UCC28060
www.ti.com .................................................................................................................................................... SLUS767E – MAY 2007 – REVISED NOVEMBER 2008
ELECTRICAL CHARACTERISTICS (continued)
At VCC = 16 V, AGND = PGND = 0 V, VINAC = 3 V, VSENSE = 6 V, HVSEN = 3 V, PHB = 5 V, R
TSET
= 133 k Ω ; all voltages
are with respect to GND, all outputs unloaded, – 40 ° C < T
J
= T
A
< +125 ° C, and currents are positive into and negative out of
the specified terminal, unless otherwise noted.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
GATE DRIVE
(2)
GDA, GDB output voltage high I
GDA
, I
GDB
= – 100 mA 11.5 13 15 V
GDA, GDB output voltage high, clamped VCC = 20 V, I
GDA
, I
GDB
= – 5 mA 12 13.5 15 V
GDA, GDB output voltage high, low VCC VCC = 12 V, I
GDA
, I
GDB
= – 5 mA 10 10.5 11.5 V
GDA, GDB on-resistance high I
GDA
, I
GDB
= – 100 mA 8 14 Ω
GDA, GDB output voltage low I
GDA
, I
GDB
= 100 mA 0.15 0.3 V
GDA, GDB on-resistance low I
GDA
, I
GDB
= 100 mA 2 3 Ω
Rise time 1 V to 9 V, C
LOAD
= 1 nF 18 30 ns
Fall time 9 V to 1 V, C
LOAD
= 1 nF 12 25 ns
GDA, GDB output voltage UV I
GDA
, I
GDB
= 2.5 mA 1.6 2 V
ZERO CURRENT DETECTOR
ZCDA, ZCDB voltage threshold, falling 0.8 1.0 1.2 V
ZCDA, ZCDB voltage threshold, rising 1.5 1.68 1.88 V
ZCDA, ZCDB clamp, high I
ZCDA
= +2 mA, I
ZCDB
= +2 mA 2.6 3.0 3.4 V
ZCDA, ZCDB input bias current ZCDA = 1.4 V, ZCDB = 1.4 V – 0.5 0.5 µ A
ZCDA, ZCDB clamp, low I
ZCDA
= – 2 mA, I
ZCDB
= – 2 mA – 0.4 – 0.2 0 V
Respective gate drive output rising 10%
ZCDA, ZCDB delay to GDA, GDB outputs
(2)
45 100 ns
from zero crossing input falling to 1 V
CURRENT SENSE
CS input bias current At rising threshold – 150 – 250 µ A
CS current limit rising threshold – 0.18 – 0.20 – 0.22 V
CS current limit falling threshold – 0.005 – 0.015 – 0.029 V
From CS exceeding threshold – 0.05 V to
CS current limit response time
(2)
60 100 ns
GDx dropping 10%
MAINS INPUT
VINAC input bias current VINAC = 2 V – 0.5 0.5 µ A
VINAC line range threshold, rising To PWM on-time change 3.25 3.45 3.60 V
VINAC line range threshold, falling 3.05 3.20 3.35 V
VINAC line changes for less than the range
VINAC line falling range change filter time
(2)
18 26 36 ms
change filter time
BROWNOUT
VINAC brownout threshold VINAC falling 1.34 1.39 1.44 V
VINAC brownout current VINAC = 1 V 5 7 9 µ A
VINAC fails to exceed the brownout
VINAC brownout filter time 340 440 540 ms
threshold for the brownout filter time
(2) Refer to Figure 13 , Figure 14 , Figure 15 , and Figure 16 in the Typical Characteristics for typical gate drive waveforms.
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