LM5116
www.ti.com
SNVS499G –FEBRUARY 2007–REVISED MARCH 2013
Electrical Characteristics
Limits in standard type are for TJ = 25°C only; limits in boldface type apply over the junction temperature range of -40°C to
+125°C and are provided for reference only. Unless otherwise specified, the following conditions apply: VIN = 48V, VCC =
7.4V, VCCX = 0V, EN = 5V, RT = 16 kΩ, no load on LO and HO.
Symbol
VIN Supply
Parameter
Conditions
Min
Typ
Max
Units
IBIAS
IBIASX
ISTDBY
VIN Operating Current
VIN Operating Current
VIN Shutdown Current
VCCX = 0V, VIN = 48V
VCCX = 0V, VIN = 100V
VCCX = 5V, VIN = 48V
VCCX = 5V, VIN = 100V
EN = 0V, VIN = 48V
5
5.9
1.2
1.6
1
7
mA
mA
mA
mA
µA
8
1.7
2.3
10
EN = 0V, VIN = 100V
1
µA
VCC Regulator
VCC(REG)
VCC Regulation
7.1
7.4
10.6
5.9
7.7
6.0
4.7
6.2
V
V
VCC LDO Mode Turn-off
VCC Regulation
VIN = 6V
5.0
15
V
VCC Sourcing Current Limit
VCCX Switch Threshold
VCCX Switch Hysteresis
VCCX Switch RDS(ON)
VCCX Leakage
VCC = 0V
VCCX Rising
26
mA
V
4.3
4.5
0.25
3.8
V
ICCX = 10 mA
VCCX = 0V
VCCX = 3V
VCC Rising
Ω
-200
100
4.5
nA
kΩ
V
VCCX Pull- down Resistance
VCC Under-voltage Threshold
VCC Under-voltage Hysteresis
HB DC Bias Current
4.3
4.7
200
0.5
0.2
V
HB - SW = 15V
125
µA
EN Input
VIL max
VIH min
EN Input Low Threshold
EN Input High Threshold
EN Input Bias Current
EN Input Bias Current
EN Input Bias Current
V
3.3
-7.5
-1
V
VEN = 3V
-3
0
1
1
µA
µA
µA
VEN = 0.5V
VEN = 100V
20
90
UVLO Thresholds
UVLO Standby Threshold
UVLO Threshold Hysteresis
UVLO Pull-up Current Source
UVLO Pull-down RDS(ON)
UVLO Rising
UVLO = 0V
1.170
1.215
0.1
1.262
V
V
5.4
µA
Ω
80
210
14
Soft Start
SS Current Source
SS = 0V
8
11
3
µA
V
SS Diode Emulation Ramp Disable
Threshold
SS Rising
SS to FB Offset
FB = 1.25V
160
45
mV
mV
SS Output Low Voltage
Sinking 100 µA, UVLO = 0V
Error Amplifier
Measured at FB pin, FB =
COMP
VREF
FB Reference Voltage
1.195
3
1.215
15
1.231
500
V
FB Input Bias Current
COMP Sink/Source Current
DC Gain
FB = 2V
nA
mA
dB
AOL
fBW
80
3
Unity Gain Bandwidth
MHz
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