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LTC3569 数据表(PDF) 6 Page - Linear Technology

部件名 LTC3569
功能描述  7-Channel Confi gurable High Power PMIC
PDF  38 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC3569 数据表(HTML) 6 Page - Linear Technology

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LTC3675
6
3675fa
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IFB6
Feedback Leakage Current
VFB6 = 0.85V
–50
50
nA
DC6BUCK(MAX)
Maximum Buck Duty Cycle
Duty Cycle of PMOS Switch A
l
100
%
DC6BOOST(MAX) Maximum Boost Duty Cycle
Duty Cycle of NMOS Switch C
75
%
RPMOS6
PMOS On-Resistance
Switches A and D
260
mΩ
RNMOS6
NMOS On-Resistance
Switches B and C
275
mΩ
ILEAKP
PMOS Switch Leakage Current
–2
2
μA
ILEAKN
NMOS Switch Leakage Current
–2
2
μA
tSS
Soft-Start Time
500
μs
ROUTPD6
Output Pull-Down Resistance in Shutdown
ENBB = 0
10
kΩ
LED Driver; RLED_FS = 20kΩ
IVIN7
Input Current (MODE0 = MODE1 = 0)
LED_OV = 0.85V (Notes 4, 5)
700
1000
μA
VLED_OV
LED Overvoltage Threshold
Feedback Voltage
Operating in LED Mode
Operating in Boost Mode
l
l
805
770
825
800
845
830
mV
mV
VLED_FS
LED Full-Scale Voltage
l
775
800
825
mV
VLED1,2
LED Pin Regulation Voltage
(Note 7)
300
mV
VLED1,2_CLMP
LED Regulation Voltage Clamp
l
6.0
8.3
V
ILIM7
Maximum Current Limit
(Note 6)
1.6
1.85
2.15
A
ILED_FS
LED Full-Scale Current
l
23.25
25.0
26.75
mA
ILED_2FS
LED Full Current High Current Mode
l
46.5
50
53.5
mA
ILED_MATCH
LED1 and LED2 Current Matching at
Full-Scale
|ILED1 −ILED2 |
ILED1 +ILED2
2
⎛
⎝⎜
⎞
⎠⎟
• 100
l
1%
ILED_LSB
LED Current LSB
98
μA
RNMOS7
NMOS On-Resistance
300
mΩ
ILEAK_NMOS7
NMOS Switch Leakage
VSW7 = 5.5V
–1
1
μA
FLEDOSC
Oscillator Frequency
l
450
562.5
675
kHz
DCMAX7
Maximum Duty Cycle
NMOS Switch
97
%
25mA Always-On LDO
VLDOFB
Feedback Regulation Voltage
l
780
800
820
mV
RDO
Dropout Resistance
12
Ω
I2C Port
DVCC
Input Supply Voltage
l
1.6
5.5
V
IDVCC
Input Supply Current
SCL/SDA= 0kHz
0.3
1
μA
DVCC_UVLO
DVCC UVLO
1V
ADDRESS
LTC3675 I2C Address
l
0001001[R/WB]
VIH
Input High Voltage
SDA/SCL
70
%DVCC
VIL
Input Low Voltage
SDA/SCL
30
%DVCC
IIH
Input High Current
SDA/SCL
–1
0
1
μA
IIL
Input Low Current
SDA/SCL
–1
0
1
μA
VOL_SDA
SDA Output Low Voltage
ISDA = 3mA
0.4
V
fSCL
Clock Operating Frequency
400
kHz



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