LTC4370IDE-TRPBF Ver la hoja de datos (PDF) - Linear Technology
Número de pieza
componentes Descripción
Fabricante
LTC4370IDE-TRPBF Datasheet PDF : 20 Pages
| |||
LTC4370
Electrical Characteristics The l denotes those specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN1 = VIN2 = 12V, OUT = VIN, VCC open, unless otherwise noted.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Supplies
VIN
VCC(EXT)
VCC(REG)
IIN
VIN1, VIN2 Operating Range
VCC External Supply Operating Range
VCC Regulated Voltage
VIN1, VIN2 Current
Enabled, Higher Supply
Enabled, Lower Supply
Pull-Up
Disabled
With External VCC Supply
VIN1, VIN2 ≤ VCC
Other VIN = 11.7V, Both EN = 0V
Other VIN = 12.3V, Both EN = 0V
Both VIN = 0V, VCC = 5V, Both EN = 0V
Both EN = 1V
l 2.9
l
0
l 2.9
18
V
VCC
V
6
V
l 4.5
5
5.5
V
l
2.1
3
mA
l
320
450
µA
l
–110 –180
µA
l
80
180
µA
ICC
VCC Current
Enabled
Disabled
VCC = 5V, Both VIN = 1.2V, Both EN = 0V
l
VCC = 5V, Both VIN = 1.2V, Both EN = 1V
l
2
2.8
mA
105
220
µA
VCC(UVLO) VCC Undervoltage Lockout Threshold
VCC Rising
l 2.3
2.55
2.7
V
ΔVCC(HYST) VCC Undervoltage Lockout Hysteresis
l 40
120
300
mV
Load Share
VEA(OS)
gm(EA)
VFR(MIN)
VFR(MAX)
Error Amplifier Input Offset
Error Amplifier Gain (–ΔICOMP /ΔVOUT)
Minimum Forward Regulation Voltage
(VIN – OUT)
Maximum Forward Regulation Voltage
(VIN – OUT)
IRANGE
VRANGE(TH)
Gate Drive
RANGE Pull-Up Current
RANGE Load Share Disable Threshold
VIN = 1.2V, VCC = 5V
VIN = 12V
RRANGE = 4.99k, VIN = 1.2V, VCC = 5V
RRANGE = 4.99k, VIN = 12V
RRANGE = 49.9k, VIN = 1.2V, VCC = 5V
RRANGE = 49.9k, VIN = 12V
RANGE = 0.2V
l
0
±2
mV
150
µS
l
2
12
25
mV
l
2
25
50
mV
l 40
62
82
mV
l 45
75
100
mV
l 425
511
575
mV
l 440
524
590
mV
l –8.8 –10 –11.2
µA
l VCC – 0.5 VCC – 0.3 VCC – 0.1
V
ΔVGATE
MOSFET Gate Drive (GATE – VIN)
VFWD = 0.2V; I = 0, −1μA; Highest VIN = 12V l 10
12
14
V
VFWD = 0.2V; I = 0, −1μA; Highest VIN = 2.9V l 4.5
7
9
V
tON(GATE)
GATE1, GATE2 Turn-On Propagation Delay VFWD (= VIN – OUT) Step: –0.3V 0.3V
l
0.4
1
µs
tOFF(GATE) GATE1, GATE2 Turn-Off Propagation Delay VFWD Step: 0.3V –0.3V
l
0.4
1
µs
IGATE(PK)
GATE1, GATE2 Peak Pull-Up Current
VFWD = 0.4V, ΔVGATE = 0V, CPO = 17V
l –0.9 –1.4 –1.9
A
GATE1, GATE2 Peak Pull-Down Current VFWD = −2V, ΔVGATE = 5V
l 0.9
1.4
1.9
A
IGATE(OFF) GATE1, GATE2 Off Pull-Down Current
Corresponding EN = 1V, ΔVGATE = 2.5V
l 65
110
160
µA
Input/Output Pins
VEN(TH)
ΔVEN(TH)
IEN
IOUT
EN1, EN2 Threshold Voltage
EN1, EN2 Threshold Hysteresis
EN1, EN2 Current
OUT1, OUT2 Current
Enabled
Disabled
EN Falling
At 0.6V
OUTn = 0V, 12V; Both EN = 0V
Both EN = 1V
l 580
600
620
mV
l
2
8
20
mV
l
0
±1
µA
l –70
260
µA
l
16
40
µA
ICPO(UP)
VOL
CPO1, CPO2 Pull-Up Current
FETON1, FETON2 Output Low Voltage
CPO = VIN
I = 1mA
I = 3mA
l –40
–70 –115
µA
l
0.12
0.4
V
l
0.36
1.2
V
VOH
FETON1, FETON2 Output High Voltage
I = −1μA, VFWD = 1V
l VCC – 1.4 VCC – 0.9 VCC – 0.5
V
4370f
3
Share Link: 