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参数资料
型号： LTC4160EUDC#TRPBF
厂商： LINEAR TECHNOLOGY CORP
元件分类： 电源管理
英文描述： POWER SUPPLY MANAGEMENT CKT, PQCC20
封装： 3 X 4 MM, 0.75 MM HEIGHT, LEAD FREE, PLASTIC, QFN-20
文件页数： 23/32页
文件大小： 422K
代理商： LTC4160EUDC#TRPBF
LTC4160/LTC4160-1
3
41601fa
ELECTRICAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IVOUT(POWERPATH) VOUT Current Available Before
Discharging Battery
1x Mode, BAT = 3.3V
5x Mode, BAT = 3.3V
10x Mode, BAT = 3.3V
Suspend Mode
0.26
121
667
1217
0.34
0.43
mA
VCLPROG
CLPROG Servo Voltage in Current Limit Switching Modes
Suspend Mode
1.183
100
V
mV
VUVLO
VBUS Undervoltage Lockout
Rising Threshold
Falling Threshold
3.95
4.3
4
4.35
V
VDUVLO
VBUS To BAT Differential Undervoltage
Lockout
Rising Threshold
Falling Threshold
200
50
mV
VOUT
VOUT Voltage
1x, 5x, 10x Modes, 0V < BAT ≤ 4.2V,
IVOUT = 0mA, Battery Charger Off
USB Suspend Mode, IVOUT = 250A
3.5
4.5
BAT + 0.3
4.6
4.7
V
fOSC
Switching Frequency
1.8
2.25
2.7
MHz
RPMOS_POWERPATH PMOS On-Resistance
0.18
RNMOS_POWERPATH NMOS On-Resistance
0.3
IPEAK_POWERPATH Peak Inductor Current Clamp
1x Mode (Note 5)
5x Mode (Note 5)
10x Mode (Note 5)
1
1.6
3
A
RSUSP
Suspend LDO Output Resistance
Closed Loop
10
PowerPath Switching Regulator – Step-Up Mode (USB On-The-Go)
VBUS
Output Voltage
0 ≤ IVBUS ≤ 500mA, VOUT > 3.2V
4.75
5.25
V
VOUT
Input Voltage
2.9
4.2
V
IVBUS
Output Current Limit
l
550
680
mA
IPEAK
Peak Inductor Current Limit
(Note 5)
1.8
A
IOTGQ
VOUT Quiescent Current
VOUT = 3.8V, IVBUS = 0mA (Note 6)
1.6
mA
VCLPROG
Output Current Limit Servo Voltage
1.15
V
VOUTUVLO
VOUT UVLO – VOUT Falling
VOUT UVLO – VOUT Rising
2.5
2.6
2.8
2.9
V
tSCFAULT
Short Circuit Fault Delay
PMOS Switch Off
7.2
ms
Overvoltage Protection
VOVCUTOFF
Overvoltage Protection Threshold
With 6.2k Series Resistor
6.1
6.42
6.7
V
VOVGATE
OVGATE Output Voltage
VOVSENS < VOVCUTOFF
VOVSENS > VOVCUTOFF
1.88 VOVSENS
0
12
V
tRISE
OVGATE Time To Reach Regulation
OVGATE CLOAD = 1nF
1.25
ms
Battery Charger
VFLOAT
BAT Regulated Output Voltage
LTC4160
l
4.179
4.165
4.2
4.221
4.235
V
LTC4160-1
l
4.079
4.065
4.1
4.121
4.135
V
ICHG
Constant Current Mode Charger Current RPROG = 845Ω, 10x Mode RCLPROG ≤ 2.49k
RPROG = 5k, 5x or 10x Mode
1120
185
1219
206
1320
223
mA
IBAT
Battery Drain Current
VBUS > VUVLO, Suspend Mode,
IVOUT = 0A
3.8
6
A
VBUS = 0V, IVOUT = 0A
(Ideal Diode Mode)
8
12
A
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C (Note 2). VBUS = 5V, BAT = 3.8V, RCLPROG = 3.01k, unless otherwise noted.
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