Datasheet
UCC28063
www.ti.com
SLUSAO7 –SEPTEMBER 2011
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 kΩ, 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 CONDITION MIN TYP MAX UNIT
Gate Drive
(2)
GDA, GDB output voltage, high I
GDA
, I
GDB
= −100 mA 11.5 12.4 15 V
GDA, GDB on-resistance, high I
GDA
, I
GDB
= −100 mA 8.8 14 Ω
GDA, GDB output voltage, low I
GDA
, I
GDB
= 100 mA 0.18 0.32 V
GDA, GDB on-resistance, low I
GDA
, I
GDB
= 100 mA 2 3.2 Ω
GDA, GDB output voltage high, VCC = 20 V, I
GDA
, I
GDB
= −5 mA
12 13.5 15
clamped
V
GDA, GDB output voltage high, VCC = 12 V, I
GDA
, I
GDB
= −5 mA
10 10.5 11.5
low VCC
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
GDA, GDB output voltage, VCC = 3.0 V, I
GDA
, I
GDB
= 2.5 mA
100 200 mV
UVLO
Zero Current Detector
ZCDA, ZCDB voltage threshold,
0.8 1.0 1.2
falling
ZCDA, ZCDB voltage threshold,
1.5 1.7 1.9
V
rising
ZCDA, ZCDB clamp, high I
ZCDA
= +2 mA, I
ZCDB
= +2 mA 2.6 3.0 3.4
ZCDA, ZCDB clamp, low I
ZCDA
= −2 mA, I
ZCDB
= −2 mA 0 −0.2 −0.4
ZCDA, ZCDB input bias current ZCDA = 1.4 V, ZCDB = 1.4 V ±0.03 ±0.5 µA
ZCDA, ZCDB delay to GDA, From ZCDx input falling to 1 V to
50 100
GDB outputs
(2)
respective gate drive output rising 10%
ns
ZCDA blanking time
(3)
From GDA rising and GDA falling 100
ZCDB blanking time
(3)
From GDB rising and GDB falling 100
Current Sense
CS input bias current, At rising threshold
−120 −166 −200 µA
dual-phase
CS current-limit rising threshold, PHB = 5 V
−0.180 −0.200 −0.220
dual-phase
CS current-limit rising threshold, PHB = 0 V
−0.149 −0.166 −0.183 V
single-phase
CS current-limit reset falling
−0.003 −0.015 −0.025
threshold
CS current-limit response From CS exceeding threshold−0.05 V to
60 100
time
(2)
GDx dropping 10%
ns
CS blanking time From GDx rising and falling edges 100
(2) Refer to Figure 13, Figure 14, Figure 15, and Figure 16 of the Typical Characteristics for typical gate drive waveforms.
(3) ZCD blanking times are ensured by design.
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