LTC4210 Ver la hoja de datos (PDF) - Linear Technology
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LTC4210 Datasheet PDF : 20 Pages
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LTC4210-1/LTC4210-2
ELECTRICAL CHARACTERISTICS The q denotes specifications which apply over the full operating
temperature range, otherwise specifications are TA = 25°C. VCC = 5V, unless otherwise noted. (Note 2)
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
tOFF(TMRHIGH) Turn-Off Time (TIMER Rise to GATE Fall) VTIMER = 0V to 2V Step, VCC = VON = 5V
1
tOFF(ONLOW) Turn-Off Time (ON Fall to GATE Fall)
VON = 5V to 0V Step, VCC = 5V
30
tOFF(VCCLOW) Turn-Off Time (VCC Fall to IC Reset)
VCC = 5V to 2V Step, VON = 5V
30
UNITS
µs
µs
µs
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into device pins are positive; all currents out of device
pins are negative. All voltages are referenced to ground unless otherwise
specified.
Note 3: An internal Zener on the GATE pin clamps the charge pump
voltage to a typical maximum voltage of 26V. External overdrive of the
GATE pin beyond the internal Zener voltage may damage the device.
Without a limiting resistor, the GATE capacitance must be <0.15µF at
maximum VCC. If a lower GATE pin clamp voltage is desired, an external
Zener diode may be used.
TYPICAL PERFOR A CE CHARACTERISTICS
Supply Current vs Supply Voltage
4.0
TA = 25°C
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0 2 4 6 8 10 12 14 16 18 20
SUPPLY VOLTAGE (V)
4210 G01
Supply Current vs Temperature
4.0
3.5
3.0
2.5
2.0
VCC = 15V
1.5
VCC = 12V
1.0
VCC = 5V
0.5
VCC = 3V
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4210 G02
Undervoltage Lockout Threshold
vs Temperature
2.65
2.60
2.55
VCC RISING
2.50
2.45
VCC FALLING
2.40
2.35
2.30
2.25
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4210 G03
VGATE vs Supply Voltage
40
TA = 25°C
35
30
25
20
15
10
5
0
0 2 4 6 8 10 12 14 16 18 20
SUPPLY VOLTAGE (V)
4210 G04
VGATE vs Temperature
40
35
30
VCC = 15V
25
20
VCC = 12V
15
VCC = 5V
10
VCC = 3V
5
0
–75 –50 –25 0 25 50 75 100 125 150
TEMPERATURE (°C)
4210 G05
IGATEUP vs Supply Voltage
–8.0
TA = 25°C
–8.5
–9.0
–9.5
–10.0
–10.5
–11.0
–11.5
–12.0
0 2 4 6 8 10 12 14 16 18 20
SUPPLY VOLTAGE (V)
4210 G06
421012f
3
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