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PRODUCT SPECIFICATION
RC5053
5
P
The denotes specifications which apply over the full operating temperature range.
Notes:
1.
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
2.
When I
FB
is taken below GND, it will be clamped by an internal diode. This pin can handle input currents greater than 100mA
below GND without latchup. In the positive direction, it is not clamped to V
CC
nor PV
CC
.
3.
All currents into device pins are positive; all currents out of the device pins are negative. All voltages are referenced to ground
unless otherwise specified.
4.
The RC5053 goes into the shutdown mode if VID0 to VID4 are floating. Due to the internal pull-up resistors, there will be an
additional 0.25mA/pin if any of the VID0 to VID4 pins are pulled low.
5.
Supply current in normal operation is dominated by the current needed to charge and discharge the external FET gates. This
will vary with the RC5053 operating frequency, supply voltage and the external FETs used.
6.
The current limiting amplifier can sink but cannot source current. Under normal (not current limited) operation, the output
current will be zero.
7.
Under typical soft current limit, the net soft start discharge current will be 60
μ
A (I
SSIL
) + [-10
μ
A(I
SS
)] = 50
μ
A. The soft start
sink-to-source current ratio is designed to be 6:1.
8.
When VID0 to VID4 are all HIGH, the RC5053 will be forced to shut down internally. The OUTEN trip voltages are
guaranteed by design for all other input codes.
BW
ERR
Error Amplifier -3dB Bandwidth COMP = Open
I
IMAX
I
MAX
Sink Current
I
SS
Soft Start Source Current
I
SSIL
Maximum Soft Start Sink
Current Under Current Limit
I
SSHIL
Soft Start Sink Current Under
Hard Current Limit
t
SSHIL
Hard Current Limit Hold Time
400
180
-10
60
kHz
μ
A
μ
A
μ
A
V
IMAX
= V
CC
V
SS
= 0.4V, V
IMAX
= 0V, V
IFB
= V
CC
V
SENSE
= V
OUT
, V
IMAX
= V
CC
,
V
IFB
= 0V
6, 7
, V
SS
= V
CC
V
SENSE
= 0V, V
IMAX
= V
CC
,
V
IFB
= 0V, V
SS
= V
CC
V
SENSE
= 0V, V
IMAX
= 4V, V
IFB
↓
from 5V
150
-13
30
220
-7
150
20
45
mA
500
μ
s
t
PWRGD
Power Good Response Time
↑
V
SENSE
↑
from 0V to Rated V
OUT
t
PWRBAD
Power Good Response Time
↓
V
SENSE
↓
from Rated V
OUT
to 0V
t
FAULT
FAULT Response Time
t
OT
OT Response Time
V
OT
Over-Temperature Trip Point
V
OTDD
Over-Temperature Driver
Disable
V
SHDN
Shutdown
t
r
, t
f
Driver Rise and Fall Time
t
NOL
Driver Nonoverlap Time
DC
MAX
Maximum G1 Duty Cycle
V
IH
VID0 to VID4 = 1 Input High
Voltage
V
IL
VID0 to VID4 = 0 Input Low
Voltage
R
IN
VID0 to VID4 = 0 Internal
Pull-Up Resistance
I
SINK
Digital Output Sink Current
0.5
200
200
15
1.9
1.6
1
2
ms
μ
s
μ
s
μ
s
V
V
500
500
40
2
1.7
1000
1000
60
2.12
1.8
V
SENSE
↑
from Rated V
OUT
to V
CC
OUTEN
↓
, VID0 to VID4 = 0 (Fig. 3)
8
OUTEN
↓
, VID0 to VID4 = 0 (Fig. 3)
8
OUTEN
↓
, VID0 to VID4 = 0 (Fig. 3)
8
OUTEN
↓
, VID0 to VID4 = 0 (Fig. 3)
8
(Figure 4)
(Figure 4)
(Figure 4)
0.8
1.2
90
100
82
1.5
150
V
ns
ns
%
V
30
77
2
88
0.8
V
10
20
k
10
mA
Electrical Characteristics
(V
CC
= 5V, PV
CC
= 12V, T
A
= 25
°
C, unless otherwise noted.)
3
(continued)
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units