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PI2211
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Electrical Specifications (Continued)
Unless otherwise specified: -40 ? C < T J < 125 ? C, BUS = 4.5 to 14 Volts (No Auxiliary Supply at VCC), BUS = 0.9 to 4.5 Volts ( 3.8 V < VCC
< VCC Clamp). R ACC = 20.0k
Parameter
OVLO Threshold (High to Low Transition of VIN)
OVLO Hysteresis
UVLO Blanking Filter
OVLO Blanking Filter
UVLO/OVLO Holdoff Time
OV Current
UV Current
Min
0.650
50
100
5
100
-0.3
-0.3
Typ
0.675
75
10
Max
0.700
100
300
15
300
0.3
0.3
Units
V
mV
us
us
us
uA
uA
Conditions
OVLO De-asserted
Ensures gate is maintained low.
Gate Drive
(V GATE @ GDR pin to GND, V GS @ GDR pin to SRC pin) . Operation is not in Current Limit.
V GATE High
Gate Drive Operating Range (V GS )
V GS Current Limit Disable Threshold
V GS Current Limit Enable Threshold
Gate Current (Sourcing Mode)
V BUS +
4.65
4.65
4.0
0
10
V BUS +
6.5
6.5
4.6
1
40
V
V
V
V
uA
Not to exceed 21V.
Power Good
Start-up
V GS = 0 to 4.6 V
Gate Current (Sinking Mode)
(2)
0.18
0.25
0.33
mA
V GS = 0.3 to Gate Drive Operating
Range.
V DRAIN > Drain Low-Threshold
Gate Current (Sinking Mode)
(2)
4
8
16
mA
V GATE = 14 V.
V DRAIN < Drain High-Threshold
OFF State Gate Discharge Path to GND (Gate Pull
Down)
30
Ohm
@ 50 mA
SRC Pin Current
-2
2.5
uA
@ 14 Volts. Positive Current into pin.
Current Limit & Sense
(CSP to CSN)
Differential Current Limit Sense Voltage
Current Ramp Time to Current Limit Level (GBD)
Current Limit Overshoot (GBD)
CSP Pin Current
CSN Pin Current
21
30
-10
-10
25
27
120
10
10
10
mV
us
%
uA
uA
T A = 25°C
Settling to within 5%
Closed loop, shorted load, MOSFET
transconductance 20 to 200 A / V
Note 2: This current is the gate discharge current for all shutdown conditions except circuit breaker (short circuit). This includes UV,
Disable (UV/EN pin), OV, SOA.
Picor Corporation · picorpower.com
PI2211
Rev 1.0, Page 4 of 26
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