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UCC24636DBVT bảng dữ liệu(PDF) 6 Page - Texas Instruments

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tên linh kiện UCC24636DBVT
Giải thích chi tiết về linh kiện  Synchronous Rectifier (SR) Controller
PDF  35 Pages
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nhà sản xuất  TI1 [Texas Instruments]
Trang chủ  http://www.ti.com
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UCC24636DBVT bảng dữ liệu(HTML) 6 Page - Texas Instruments

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UCC24636
SLUSCG2A – MARCH 2016 – REVISED MARCH 2016
www.ti.com
Product Folder Links: UCC24636
Submit Documentation Feedback
Copyright © 2016, Texas Instruments Incorporated
Electrical Characteristics (continued)
over operating free-air temperature, VDD = 12 V, TA = –40°C to 125°C, TA = TJ (unless otherwise noted)
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
(1)
The device exits standby operation as soon as nEN occurs within tEN.
STANDBY OPERATION
nENTO
Number of switching cycles to enter
standby operation during tENTO
64
nEN
Number of switching cycles to exit
standby operation during tEN
(1)
32
OVER TEMPERATURE PROTECTION
T(STOP)
Thermal shutdown temperature
Internal junction temperature
165
°C
(1)
The device exits standby operation as soon as nEN occurs within tEN.
7.6 Timing Requirements
over operating free-air temperature range, VDD = 12 V, TA = –40°C to 125°C, TA = TJ (unless otherwise noted)
PARAMETER
TEST CONDITION
MIN
TYP
MAX
UNIT
DRV
tR
DRV high-side rise time
VVDD = 12 V, CL = 3.3 nF, VDRV = 2 V to 8 V
27
54
ns
VVDD = 5 V, CL = 3.3 nF, VDRV = 1 V to 4 V
50
100
tF
DRV low-side fall time
VVDD = 12 V, CL = 3.3 nF, VDRV = 8 V to 2 V
20
54
ns
VVDD = 5 V, CL = 3.3 nF, VDRV = 4 V to 1 V
15
50
tDRVON
Propagation delay to DRV High
VVPC = 1 V to –0.05 V falling to DRV high,
VVDD = 12 V, VDRV = 0 V to 2 V
80
160
ns
tDRVOFF
Propagation delay to DRV Low
Test mode
65
95
ns
VPC INPUT
tVPC-SPL
VPC sampling time window
81
100
125
ns
tVPC-BLK
Minimum VPC pulse for SR DRV
operation
RTBLK = 5 kΩ
169
203
239
ns
RTBLK = 50 kΩ
0.85
1.01
1.18
µs
SR ON CONTROL
tSRONMIN
SR minimum on time after VPC falling.
300
350
425
ns
tOFF
SR off blanking time from DRV falling.
3.96
4.35
4.75
us
STANDBY OPERATION
tENTO
Time to disable SR operation, enter
standby
Time to disable DRV
11.5
12.8
14.1
ms
tEN
Time to enable SR operation, exit
standby operation
Time to enable DRV(1)
2.3
2.56
2.82
ms



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