LTC4156 データシートの表示（PDF） - Linear Technology
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LTC4156
Linear Technology
LTC4156 Datasheet PDF : 52 Pages
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LTC4156
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the specified operating
junction temperature range, otherwise specifications are at TA ≈ TJ = 25°C (Note 2). VBUS = 5V, BATSNS = 3.3V, DVCC = 3.3V,
RCLPROG1 = RCLPROG2 = 1.21k, RPROG = 499Ω, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
hCLPROG2
Ratio of Measured VBUS Current to 2.5mA IVBUS Mode (USB Suspend)
19
(Note 4)
CLPROG2 Sense Current
100mA IVBUS Mode
79
500mA IVBUS Mode
466
600mA IVBUS Mode
557
700mA IVBUS Mode
657
800mA IVBUS Mode
758
900mA IVBUS Mode
839
1.00A IVBUS Mode
990
1.25A IVBUS Mode
1222
1.50A IVBUS Mode
1494
1.75A IVBUS Mode
1746
2.00A IVBUS Mode
1999
2.25A IVBUS Mode
2175
2.50A IVBUS Mode
2477
2.75A IVBUS Mode
2730
3.00A IVBUS Mode
2956
VCLPROG1
CLPROG1 Servo Voltage in
CLPROG1 IVBUS Mode
1.2
Current Limit
VCLPROG2
fOSC
RPMOS
RNMOS
RCHG
CLPROG2 Servo Voltage in
Current Limit
Switching Frequency
High Side Switch On Resistance
Low Side Switch On Resistance
Battery Charger Current Sense
Resistance
2.5mA IVBUS Mode (USB Suspend)
100mA – 3A IVBUS Modes
103
1.2
2.05 2.25 2.50
0.090
0.080
0.040
IPEAK
Peak Inductor Current Clamp
500mA – 3A IVBUS Modes
6.7
Step-Up Mode PowerPath Switching Regulator (USB On-The-Go)
VBUS
VOUT
IVBUSOTG
IVOUTOTGQ
VCLPROG2
VBATSNSUVLO
Output Voltage
Input Voltage
0mA ≤ IVBUS ≤ 500mA
Output Current Limit
VOUT Quiescent Current
IVBUS = 0mA
Output Current Limit Servo Voltage
VBATSNS Undervoltage Lockout
VBATSNS Falling
Hysteresis
4.75
5.25
2.9
1.4
1.96
1.2
2.65
2.8
2.95
130
tSCFAULT
Short-Circuit Fault Delay
VBUS < 4V
7.2
Overvoltage Protection, Priority Multiplexer and Undervoltage Lockout; USB Input Connected to USBSNS Through 3.6k Resistor; WALL Input
Connected to WALLSNS Through 3.6k Resistor
VUVLO
USB Input, Wall Input
Undervoltage Lockout
Rising Threshold
Falling Threshold
Hysteresis
4.05
4.45
3.90
4.25
100
VDUVLO
USB Input, Wall Input to BATSNS Rising Threshold
Differential Undervoltage Lockout Falling Threshold
Hysteresis
100
425
50
375
70
VOVLO
USB Input, Wall Input Overvoltage Rising Threshold
Protection Threshold
5.75
6.0
6.3
VUSBGTACTV USBGT Output Voltage Active
VWALLGTACTV WALLGT Output Voltage Active
USBSNS < VUSBOVLO
WALLSNS < VWALLOVLO
2 • VUSBSNS
2 • VWALLSNS
UNITS
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
mA/mA
V
mV
V
MHz
Ω
Ω
Ω
A
V
V
A
mA
V
V
mV
ms
V
V
mV
mV
mV
mV
V
V
V
4156f
6
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