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LM25115 데이터시트(PDF) 4 Page - Texas Instruments

부품명 LM25115
상세설명  LM25115 Secondary Side Post Regulator Controller
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제조업체  TI [Texas Instruments]
홈페이지  http://www.ti.com
Logo TI - Texas Instruments

LM25115 데이터시트(HTML) 4 Page - Texas Instruments

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LM25115
SNVS418A – NOVEMBER 2005 – REVISED APRIL 2013
www.ti.com
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
ABSOLUTE MAXIMUM RATINGS
(1) (2)
VBIAS to GND
–0.3V to 32V
VCC to GND
–0.3V to 9V
HS to GND
–1V to 45V
VOUT, CS to GND
– 0.3V to 15V
All other inputs to GND
−0.3V to 7.0V
Storage Temperature Range
–55°C to +150°C
Junction Temperature
+150°C
ESD Rating
HBM (3)
2 kV
(1)
Absolute Maximum Ratings indicate limits beyond which damage to the component may occur. Operating Ratings are conditions under
which operation of the device is specified. Operating Ratings do not imply ensured performance limits. For ensured performance limits
and associated test conditions, see the Electrical Characteristics tables.
(2)
If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3)
The human body model is a 100 pF capacitor discharged through a 1.5k
Ω resistor into each pin.
OPERATING RATINGS
VBIAS supply voltage
5V to 30V
VCC supply voltage
5V to 7.5V
HS voltage
0V to 42V
HB voltage
VCC + HS
Operating Junction Temperature
–40°C to +125°C
TYPICAL OPERATING CONDITIONS
Parameter
Min
Typ
Max
Units
Supply Voltage, VBIAS
4.5
30
V
Supply Voltage, VCC
4.5
7
V
Supply voltage bypass, CVBIAS
0.1
1
µF
Reference bypass capacitor, CVCC
0.1
1
10
µF
HB-HS bootstrap capacitor
0.047
µF
SYNC Current Range (VCC = 4.5V)
50
150
µA
RAMP Saw Tooth Amplitude
1
1.75
V
VOUT regulation voltage (VBIAS min = 3V + VOUT)
0.75
13.5
V
ELECTRICAL CHARACTERISTICS
Unless otherwise specified, TJ = –40°C to +125°C, VBIAS = 12V, No Load on LO or HO.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
VBIAS SUPPLY
Ibias
VBIAS Supply Current
FSYNC = 200kHz
4
mA
VCC LOW DROPOUT BIAS REGULATOR
VccReg
VCC Regulation
VCC open circuit. Outputs not switching
6.65
7
7.15
V
VCC Current Limit
((1))
40
mA
VCC Under-voltage Lockout Voltage
Positive going VCC
4
4.5
V
VCC Under-voltage Hysteresis
0.2
0.25
0.3
V
(1)
Device thermal limitations may limit usable range.
4
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Copyright © 2005–2013, Texas Instruments Incorporated
Product Folder Links: LM25115


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