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U8021 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 U8021
기능 VOLTAGE MODE PWM CONTROLLER
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U8021 데이터시트, 핀배열, 회로
UNISONIC TECHNOLOGIES CO., LTD
U8021
Preliminary
VOLTAGE MODE PWM
CONTROLLER WITH LINEAR
POWER REGULATOR
DESCRIPTION
The UTC U8021 provides the control and protection features
necessary for a synchronous buck converter and a linear
regulator in high performance graphic card applications.
The UTC U8021 is designed to directly drive the high and low
MOSFETs of the buck converter. It allows the converter to
operate with 4V~25V power rail and as low as 0.5V output. The
UTC U8021 is capable to drive a N-type MOSFET in a linear
regulator with as low as 0.5V output.
The UTC U8021 features soft-start, UVLO, and OCP. The
UTC U8021 monitors the output current by using the Rdson of the
low MOSFET in the buck converter that eliminates the need for a
current sensing resistor.
FEATURES
* 4V~25V power rails
* Internal LDO
* 1.5A gate drive current
* Adaptive non-overlapping gate drives provide shoot-through
protection for MOSFETs
* Programmable output voltages
* Internal soft start
* Under voltage lockout
* Short circuit protection
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
U8021L-S14-T
U8021G-S14-T
U8021L-S14-R
U8021G-S14-R
Package
SOP-14
SOP-14
CMOS IC
Packing
Tube
Tape Reel
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-A13.a
Free Datasheet http://www.Datasheet4U.com




U8021 pdf, 반도체, 판매, 대치품
U8021
Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
Exceeding the specifications below may result in permanent damage to the device, or device malfunction. Operation
outside of the parameters specified in the Electrical Characteristics section is not implied.
PARAMETER
SYMBOL
RATINGS
UNIT
Input Supply Voltage
VCC 18 V
BST to GND
BST to PN
VBST
VBST_PN
40
10
V
V
PN to GND
PN to GND Negative Pulse (tpulse<20ns)
VPN
VPN_PULSE
-1~30
-5
V
V
DL to GND
DL to GND Negative Pulse (tpulse<20ns)
VDL
VDL_PULSE
-1~+10
-3
V
V
DH to PN
DH to PN Negative Pulse (tpulse<20ns)
VDH_PN
VDH_PULSE
-1~+10
-3
V
V
DRV to GND
Operating Ambient Temperature Range
VDRV
TA
10
-25~85
V
°C
Operating Junction Temperature
Storage Temperature
TJ
TSTG
-25~125
-65~150
°C
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
THERMAL RESISTANCES
PARAMETER
Junction to Ambient
Junction to Case
SYMBOL
θJA
θJC
RATINGS
100
32
UNIT
°C/W
°C/W
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R502-A13.a
Free Datasheet http://www.Datasheet4U.com

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휴대전화 : 010-3582-2743


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링크 :

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부품번호상세설명 및 기능제조사
U8021

VOLTAGE MODE PWM CONTROLLER

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