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TPS92314DR Fiches technique(PDF) 4 Page - Texas Instruments

No de pièce TPS92314DR
Description  Off-Line Primary Side Sensing Controller with PFC
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

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TPS92314
TPS92314A
SNVS856B – JUNE 2012 – REVISED MAY 2013
www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
VCC = 18V unless otherwise indicated. Typicals and limits appearing in plain type apply for TA = TJ = +25°C. Limits appearing
in boldface type apply over the full Operating Temperature Range. Data sheet minimum and maximum specification limits
are specified by design, test or statistical analysis.
Symbol
Parameter
Conditions
Min
Typ (1)
Max
Units
gmISNS
ISNS error amp trans-conductance
Δ VISNS to Δ ICOMP at VCOMP = 2.5V
96
µmho
DELAY CONTROL (DLY)
VDLY
DLY pin internal reference voltage
1.21
1.24
1.3
V
IDLY-MAX
DLY source current
VDLY= 0V
250
450
µA
CURRENT SENSE (ISNS)
VISNS-OCP
Over Current Limit Detection Threshold
TPS92314
1.07
1.15
1.22
V
VISNS-OCP
Over Current Limit Detection Threshold
TPS92314A
1.90
2.0
2.10
V
IISNS
Current Sense Bias Current
VISNS= 5V
-1
1
µA
TOCP
Over current Limit Detection Propagation
Measure ISNS pin pulse width with VISNS = 5V
256
ns
Delay
GATE DRIVER (GATE)
VGATE-H
GATE low voltage
IGATE = 50mA source
7.6
9.4
V
VGATE-L
GATE high drive voltage
IGATE = 50mA sink
85
125
mV
tGATE-RISE
Rise Time
CLOAD = 1nF
94
ns
tGATE-FALL
Fall Time
CLOAD = 1nF
16
ns
TON-MIN
Minimum ON time
With ZCD signal.
311
500
900
ns
TON-MAX
Maximum ON time
27
43.9
61
µs
TOFF-MIN
Minimum OFF time
1.00
1.50
1.93
µs
TOFF-MAX
Maximum OFF time
ZCD = GND
67
117
151
µs
TOFF-START
Maximum OFF time when start up.
Maximum OFF time at first 511 switching after
44
78
102
µs
UVLO
TOFF-OCP
Maximum OFF time when OCP
OFF time when VISNS =4V.
233
µs
THERMAL SHUTDOWN
TSD
Thermal shutdown temperature
See (2)
165
°C
Thermal Shutdown hysteresis
20
°C
(2)
Internal thermal shutdown circuitry protects the device from permanent damage. Thermal shutdown engages at TJ = 165°C (typ.) and
disengages at TJ = 145°C (typ).
4
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Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: TPS92314 TPS92314A


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