參數(shù)資料
型號(hào)： LTC3722-1
廠商： Linear Technology Corporation
英文描述： Synchronous Dual Mode Phase Modulated Full Bridge Controllers
中文描述： 同步相位調(diào)制的雙模式全橋控制器
文件頁(yè)數(shù)： 4/28頁(yè)
文件大小： 319K
代理商： LTC3722-1
LTC3722-1/LTC3722-2
4
372212i
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 9.5V, T
A
= t
MIN
to t
MAX
, unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
Error Amplifier
V
FB
FB Input Voltage
COMP = 2.5V (Note 4)
FBI
FB Input Range
Measured on FB (Note 5)
A
VOL
Open-Loop Gain
COMP = 1V to 3V (Note 4)
IIB
Input Bias Current
COMP = 2.5V (Note 4)
V
OH
Output High
Load on COMP = –100
μ
A
V
OL
Output Low
Load on COMP = 100
μ
A
I
SOURCE
Output Source Current
COMP = 2.5V
I
SINK
Output Sink Current
COMP = 2.5V
Reference
V
REF
Initial Accuracy
T
A
= 25
°
C, Measured on V
REF
REFLD
Load Regulation
Load on V
REF
= 100
μ
A to 5mA
REFLN
Line Regulation
V
CC
= 6.5V to 9.5V
REFTV
Total Variation
Line, Load
REFSC
Short-Circuit Current
V
REF
Shorted to GND
Outputs
OUTH(x)
Output High Voltage
I
OUT(x)
= –50mA
OUTL(x)
Output Low Voltage
I
OUT(x)
= 50mA
R
HI(x)
Pull-Up Resistance
I
OUT(x)
= –50mA to –10mA
R
LO(x)
Pull-Down Resistance
I
OUT(x)
= –50mA to –10mA
t
r(x)
Rise Time
C
OUT(x)
= 50pF
t
f(x)
Fall Time
C
OUT(x)
= 50pF
SDEL
SYNC Driver Turn-0ff Delay
R
SPRG
= 100k
Current Limit and Shutdown
CLPP
Pulse by Pulse Current Limit Threshold
Measured on CS
CLSD
Shutdown Current Limit Threshold
Measured on CS
CLDEL
Current Limit Delay to Output
100mV Overdrive on CS (Notes 3, 7)
SSI
Soft-Start Current
SS = 2.5V
SSR
Soft-Start Reset Threshold
Measured on SS
FLT
Fault Reset Threshold
Measured on SS
The
G
denotes the specifications which apply over the full operating
MIN
TYP
MAX
UNITS
1.172
–0.3
70
1.204
1.236
2.5
V
V
90
5
4.92
0.18
800
5
dB
nA
V
V
μ
A
mA
20
4.7
0.4
400
2
4.925
5.00
2
0.9
5.000
30
5.075
15
10
5.100
45
V
mV
mV
G
4.900
18
V
mA
7.9
8.4
0.6
22
12
5
5
180
V
V
ns
ns
ns
1
30
20
15
15
240
0.55
270
0.65
80
12
0.4
3.9
300
0.73
mV
V
ns
μ
A
V
V
7
17
0.1
3.5
0.7
4.5
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
Sync amplitude = 5V
P-P
, pulse width = 50ns. Verify output (A-F)
frequency = 1/2 sync frequency.
Note 3:
Includes leading edge blanking delay, R
LEB
= 20k.
Note 4:
FB is driven by a servo-loop amplifier to control V
COMP
for these
tests.
Note 5:
Set FB to –0.3V, 2.5V and insure that COMP does not phase
invert.
Note 6:
The LTC3722E-1/LTC3722E-2 are guaranteed to meet
performance specifications from 0
°
C to 85
°
C. Specifications over the
–40
°
C to 85
°
C operating temperature range are assured by design,
characterization and correlation with statistical process controls.
Note 7:
Guaranteed by design, not tested in production.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC3722EGN-1 功能描述:IC REG CTRLR DIV ISO PWM 24SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC3722EGN-1#PBF 功能描述:IC REG CTRLR DIV ISO PWM 24SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- PWM 型:電流模式 輸出數(shù):1 頻率 - 最大:1MHz 占空比:50% 電源電壓:9 V ~ 10 V 降壓:無(wú) 升壓:是 回掃:是 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 85°C 封裝/外殼:8-TSSOP（0.173"，4.40mm 寬） 包裝:帶卷 (TR)
LTC3722EGN-1#TR 功能描述:IC REG CTRLR DIV ISO PWM 24SSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
LTC3722EGN-1#TRPBF 功能描述:IC REG CTRLR DIV ISO PWM 24SSOP RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 切換控制器 系列:- 標(biāo)準(zhǔn)包裝:4,500 系列:PowerWise® PWM 型:控制器 輸出數(shù):1 頻率 - 最大:1MHz 占空比:95% 電源電壓:2.8 V ~ 5.5 V 降壓:是 升壓:無(wú) 回掃:無(wú) 反相:無(wú) 倍增器:無(wú) 除法器:無(wú) Cuk:無(wú) 隔離:無(wú) 工作溫度:-40°C ~ 125°C 封裝/外殼:6-WDFN 裸露焊盤 包裝:帶卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名稱:LM1771SSDX
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