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U9751B PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 U9751B
기능 DOUBLE CHANNELS PWM CONTROLLER
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U9751B 데이터시트, 핀배열, 회로
UNISONIC TECHNOLOGIES CO., LTD
U9751B
LINEAR INTEGRATED CIRCUIT
DOUBLE CHANNELS PWM
CONTROLLER
DESCRIPTION
The UTC U9751B consists of two PWM control circuits. Two
PWM controllers is independent each other. It is low cost in many
applications.
FEATURES
* Switch frequency: 400KHz
* ISINK =400mA
* Wide work voltage
* Programmable dead-time control
* UVLO protection
* SCP protection
* Lower static supply current
SOP -16
DIP-16
SSOP-16(150mil)
*Pb-free plating product number: U9751BL
APPLICATION
* DC/DC converters for video cameras backlight inwvwewr.DteatarShaenet4dU.com
notebook computers etc.
ORDER INFORMATION
Order Number
Normal
Lead Free Plating
U9751B-D16-T
U9751BL-D16-T
U9751B-S16-R
U9751BL-S16-R
U9751B-S16-T
U9751BL-S16-T
U9751B-R16-R
U9751BL-R16-R
U9751B-R16-T
U9751BL-R16-T
Package
DIP-16
SOP-16
SOP-16
SSOP-16
SSOP-16
Packing
Tube
Tape Reel
Tube
Tape Reel
Tube
U9751BL-D16-R
(1)Packing Type
(2)Package Type
(3)Lead Plating
(1) R: Tape Reel, T: Tube
(2) D16: DIP-16, S16: SOP-16, R16: SSOP-16
(3) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
1 of 6
QW-R103-034,A




U9751B pdf, 반도체, 판매, 대치품
U9751B
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC +38
V
Differential Input Voltage
Output Voltage
VI(DIFF)
VOUT
+20
+38
V
V
Output Current
Maximum Junction Temperature
IOUT +450 mA
TJ +150
Operating Temperature
TOPR
-20 ~ +85
Storage Temperature
TSTG
-55 ~ +150
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.
DC ELECTRONIC CHARACTERISTICS
VCC=6V, f=200kHz (unless otherwise specified)
PARAMETER
SYMBOL
Reference section
Internal Reference Voltage
VREF Regulation with VCC
VREF Regulation with IO(REF)
VREF
VREF
VREF
VREF Regulation with Temperature
Short-Circuit Output Current
Undervoltage Lockout Section
threshold Voltage(VCC)
Short-Circuit Protection Control Section
SCP Input Threshold Voltage
SCP Comparator Threshold Voltage
SCP Standby Voltage
SCP Latched Input voltage
Input (Source) Current
Oscillator Section
Frequency
Deviation of Frequency
Frequency Regulation with Voltage
IO(SC)
VTHR
VI(THR)
VCOM(THR)
VSTN-BY
VI(LTH)
II(SOURCE)
f
f
f/ V
Frequency Regulation with Temperature
f/ T
Dead-time control section
Latched Input Voltage
Input Threshold Voltage at f=10kHZ
Input Bias Current
Latch Mode (Source) Current
Error-Amplifier Section
Input Offset Voltage
Common-Mode Input Voltage Range
Positive Output Voltage Swing
Negative Output Voltage Swing
Input Offset Current
VI(LTH)
VI(THR)
II(BIAS)
ISOURCE
VI(OFF)
VI(CM)
VO(POS)
VO(NEG)
II(OFF)
TEST CONDITIONS
IOUT =1mA
VCC =3.6V ~ 40V
IOUT = 0.1mA to 1mA
TA=-20 ~ 25
TA=25 ~ 85
VOUT =0
IO(REF) = 0.1mA,TA=25
TA= 25
No pull-up
No pull-up
VIN=0.7V, TA=25
CT=220pF, RT=10K
CT=220pF, RT=10K
VCC=3.6V to 40V
TA=-20 25
TA=25 85
IOUR DTC =40µA
Zero duty cycle
Maximum duty cycle
TA=25
VO(FB)=1.25V
VCC=3.6V to 40 V
VO(FB)=1.25V
MIN TYP MAX
2.40 2.46 2.53
3.5
2
-0.1% ±1%
-0.2% ±1%
18 22 30
2.5 2.8 3.2
1.2 1.3 1.5
1.26
110 220
77 200
-1.5 -2.0 -2.5
400
10%
1%
-0.4%
-0.2%
±2%
±2%
1.9
1.75 1.95 2.15
1.3 1.45 1.7
0.2 1
-620
0.3
VREF-0.2
±6
1.6
1
±100
UNIT
V
mV
mV
mA
V
V
V
mV
mV
µA
KHZ
V
V
µA
µA
mV
V
V
V
nA
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 6
QW-R103-034,A

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부품번호상세설명 및 기능제조사
U9751B

DOUBLE CHANNELS PWM CONTROLLER

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