MIC2310_08 Datasheet, PDF (8/34 Pages) Micrel Semiconductor – Single-FET, Constant Power-Limit Hot Swap Controller

Micrel, Inc.
MIC2310
Symbol
V_CBP
V_CBS
I_VCCSENSE
I_SENSE
V_RETRYH
V_RETRYL
I_RETRYUP
I_RETRYDN
V_PRIL
V_PRIL
I_PRI
∆V_GATE
∆V_CP
I_SLEW
Parameter
Primary OC Circuit Breaker
Threshold Voltage
V_VCCSENSE – V_SENSE
Secondary OC SENSE
Voltage
V_VCCSENSE - V_SENSE
VCCSENSE Pin Input
Current
SENSE Pin Input Current
CRETRY Pin High
Threshold Voltage
CRETRY Pin Low Threshold
Voltage
CRETRY Pin Charging
Current
CRETRY Pin Pull-down
Current
CPRIMARY Pin Low
Threshold Voltage
CPRIMARY Pin Low
Threshold Voltage
CPRIMARY Pin Charging
Current
GATE Output Voltage
V_CSLEW – V_SENSE Differential
Inrush Current slew
Charging current
Condition
(V_LOADSENSE – V_GNDSENSE) = +12V
(V_LOADSENSE – V_GNDSENSE) = +10.8V
(V_LOADSENSE – V_GNDSENSE) = +13.2V
Secondary OC S[1:0] = L, L
Detector Circuit
Breaker Trips,
V_LOADSENSE –
V_GNDSENSE =
10.8V to 13.2V
S[1:0] = L, H
S[1:0] = H, L
S[1:0] = H,H
V_VCCSENSE = V_CC
V_SENSE = V_CC
TIMER ON,
V_RETRY = 0V
TIMER OFF,
V_RETRY = 1.5V
During OC response;
ENABLE = HIGH;
V_CC(SENSE) – V_SENSE > V_CBP
Measured relative to V_REG
During shorted ENABLE = HIGH;
C_PRIMARY
detection;
Measured
relative to V_REG
V_CC(SENSE) – V_SENSE
< V_CBP
ENABLE = LOW
During Primary OC Fault
V_CPRIMARY = V_REG;
ENABLE = HIGH
V_CC(SENSE) – V_SENSE > V_CBP
During nominal and reset operation
V_PRIMARY = V_REG – 1.25V;
ENABLE = HIGH
V_CC(SENSE) – V_SENSE < V_CBP
During disable;
V_CPRIMARY = V_REG – 1.25V
ENABLE = LOW
(V_GATE-V_CC): V_CC > 10.5V
Internally clamped
Charge pump to OFF
V_CSLEW = V_CC – 50mV
Min Typ Max
54.7 57.2 59.7
60.7 63.5 66.3
49.6 51.9 54.2
64 75.5 87
75 87.5 99
100 116.6 130
85 102 116
1
3
1.21 1.25 1.28
0.25 0.3 0.35
-4.25 -3 -1.65
3
-1.3 -1.25 -1.2
-1.3 -1.25 -1.2
2.4
3
3.6
-4.5 -3 -1.5
-4.5 -3 -1.5
8
15
50
5
10
15
Units
mV
mV
mV
mV
mV
mV
mV
µA
µA
V
V
µA
mA
V
V
µA
mA
mA
V
mV
µA
July 2008
8
M9999-070108-A