Texas Instruments TPS92551EVM Evaluation Module TPS92551EVM/NOPB TPS92551EVM/NOPB Datenbogen
Produktcode
TPS92551EVM/NOPB
SNVS805C – MAY 2012 – REVISED MAY 2013
ELECTRICAL CHARACTERISTICS
Limits in standard type are for T
J
= 25°C unless otherwise stated; limits in boldface type apply over the operating junction
temperature range T
J
of -40°C to 125°C. Minimum and maximum limits are specified through test, design, or statistical
correlation. Typical values represent the most likely parametric norm at T
J
= 25°C, and are provided for reference purposes
only. Unless otherwise stated the following conditions apply: V
IN
=48 V, I
LED
= 350mA. V
IN
is the voltage applied across LED+
and GND. I
IN
is the input current flowing into the LED+ node. I
LED
is a LED current flowing into the LED- pin. V
LED
is the
voltage applied across LED+ and LED-. V
DIM
is the voltage applied across the DIM pin to ground. Resistor R
IADJ
connect from
IADJ pin to ground. Resistor R
VREF
connect from VREF pin to ground.
Symbol
Parameter
Conditions
Min
(1)
Typ
(2)
Max
(1)
Units
SYSTEM PARAMETERS
I
IN
Input Current
V
LED
= 0V, 4.5V
≤
V
IN
≤
60V, V
DIM
= 0V
2.1
2.65
3.0
mA
I
LED
LED Current
V
LED
= 24V , R
IADJ
= 0
Ω
, R
VREF
= open, T
J
= 25°C
340
350
364
mA
V
LED
= 24V, R
IADJ
= 0
Ω
, R
VREF
= open, T
J
= 25°C to 125°C
337
350
364
V
LED
= 24V, R
IADJ
= 0
Ω
, R
VREF
= open,
337
350
371
T
J
= -40°C to 125°C
I
LED–60V
LED Current
V
IN
= 60V, V
LED
= 36V, R
IADJ
= 0
Ω
R
VREF
= open,
342
350
367
mA
at V
IN
= 60V
T
J
= 25°C
V
IN
= 60V, V
LED
= 36V, R
IADJ
= 0
Ω
, R
VREF
= open,
338
350
367
T
J
= 25°C to 125°C
V
IN
= 60V, V
LED
= 36V, R
IADJ
= 0
Ω
, R
VREF
= open,
338
350
374
T
J
= -40°C to 125°C
I
LED-ADJ1
Adjusted LED Current
V
LED
= 24V, R
IADJ
= 0
Ω
, R
VREF
= 10.5k
Ω
, T
J
= 25°C
442
450
471
mA
V
LED
= 24V, R
IADJ
= 0
Ω
, R
VREF
= 10.5k
Ω
,
437
450
471
T
J
= 25°C to 125°C
V
LED
= 24V, R
IADJ
= 0
Ω
, R
VREF
= 10.5k
Ω
,
437
450
483
T
J
= -40°C to 125°C
I
LED-ADJ2
Adjusted LED Current
V
LED
= 24V, R
IADJ
= 500
Ω
, R
VREF
= open, T
J
= 25°C
288
300
309
mA
V
LED
= 24V, R
IADJ
= 500
Ω
, R
VREF
= open,
282
300
309
T
J
= 25°C to 125°C
V
LED
= 24V, R
IADJ
= 500
Ω
, R
VREF
= open,
282
300
316
T
J
= -40°C to 125°C
I
LED-SHORT
LED Short Circuit
V
LED
= 0V, V
IN
= 60V, DIM = open
800
920
1020
mA
Current at V
IN
= 60V
I
LED-LEAK
“LED-” pin leakage
V
LED
= 0V, V
IN
= operating max, DIM = 0V
1.2
µA
current
f
SW
Switching Frequency
V
LED
= 24V, R
IADJ
= 0
Ω
, R
VREF
= open
720
800
920
kHz
V
DIM
DIM Pin Threshold
V
DIM
Increasing
1.0
1.3
V
V
DIM-HYS
DIM Pin Hysteresis
0.25
V
THERMAL CHARACTERISTICS
Thermal Shutdown
T
J
Rising
170
°C
T
SD
Temperature
Thermal Shutdown
T
J
Rising
10
°C
T
SD-HYS
Temp. Hysteresis
Junction to Ambient
(3)
4 Layer JEDEC Printed Circuit Board, 100 vias, No air flow
19.3
°C/W
θ
JA
2 Layer JEDEC PCB, No air flow
21.5
θ
JC
Junction to Case
No air flow
1.9
°C/W
(1)
Min and Max limits are 100% production tested at an ambient temperature (T
A
) of 25°C. Limits over the operating temperature range are
specified through correlation using Statistical Quality Control (SQC) methods. Limits are used to calculate Average Outgoing Quality
Level (AOQL).
Level (AOQL).
(2)
Typical numbers are at 25°C and represent the most likely parametric norm.
(3)
θ
JA
measured on a 1.705” x 3.0” four layer board, with one ounce copper , thirty five 12 mil thermal vias, no air flow, and 1W power
dissipation.
Copyright © 2012–2013, Texas Instruments Incorporated
5
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