参数资料
型号: TPS40077PWPRG4
厂商: TEXAS INSTRUMENTS INC
元件分类: 稳压器
英文描述: 2 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO16
封装: GREEN, PLASTIC, HTSSOP-16
文件页数: 12/43页
文件大小: 847K
代理商: TPS40077PWPRG4
DESCRIPTION (CONTINUED)
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
ELECTROSTATIC DISCHARGE (ESD) PROTECTION
SLUS714D – JANUARY 2007 – REVISED APRIL 2009 ..................................................................................................................................................... www.ti.com
The TPS40077 drives external N-channel MOSFETs using second-generation, predictive-gate drive to minimize
conduction in the body diode of the low-side FET and maximize efficiency. Pre-biased outputs are supported by
not allowing the low-side FET to turn on until the voltage commanded by the closed-loop soft start is greater than
the pre-bias voltage. Voltage feed-forward provides good response to input transients and provides a constant
PWM gain over a wide input-voltage operating range to ease compensation requirements. Programmable
short-circuit protection provides fault-current limiting and hiccup recovery to minimize power dissipation with a
shorted output. The 16-pin PowerPAD package gives good thermal performance and a compact footprint.
ORDERING INFORMATION
PACKAGE
ORDERABLE PART NUMBER
Plastic HTSSOP (PWP)
Tube
TPS40077PWP
Plastic HTSSOP (PWP)
Tape and reel
TPS40077PWPR
over operating free-air temperature range unless otherwise noted
(1)
TPS40077
UNIT
VDD, ILIM
30
COMP, FB, KFF, PGD, LVBP
–0.3 to 6
VVDD
Input voltage range
V
SW
–0.3 to 40
SW, transient < 50 ns
–2.5
COMP, KFF, RT, SS
–0.3 to 6
VBOOST
50
VOUT
Output voltage range
V
DBP
10.5
LVBP
6
Output current source
LDRV, HDRV
1.5
IOUT
LDRV, HDRV
2
A
Output current sink
KFF
10
RT
1
Output current
mA
LVBP
1.5
TJ
Operating junction temperature range
–40 to 125
Tstg
Storage temperature
–55 to 150
°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds
260
(1)
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
MIN
NOM
MAX
UNIT
VDD
Input voltage
4.5
28
V
TA
Operating free-air temperature
–40
85
°C
UNIT
Human body model (HBM)
2000
V
Charged device model (CDM)
1500
V
2
Copyright 2007–2009, Texas Instruments Incorporated
Product Folder Link(s) :TPS40077
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