ltc4242cuhf-trpbf Linear Technology Corporation, ltc4242cuhf-trpbf Datasheet - Page 3

• Manufacturer Part Number: ltc4242cuhf-trpbf
• Description: Dual Slot Hot Swap Controller For Pci Express
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
(Note 2)
SYMBOL
Supplies
V
I
V
ΔV
Current Limit
ΔV
ΔV
I
t
Switch Resistance
R
External Gate Drive
I
I
I
ΔV
Input Pins
V
V
DD
CBAUX
CB
GATE(UP)
GATE(DN)
GATE(FPD)
IN
UVL
PG(TH)
PG(HYST)
AUX
LKO(HYST)
SENSE(CB)
SENSE(ACL)
GATE
PARAMETER
Operating Voltage
Input Supply Current
Supply Undervoltage Lockout
Supply Undervoltage Lockout Hysteresis
Circuit Breaker Trip Sense Voltage
Active Current Limit Sense Voltage
Circuit Breaking Current for AUX Supply
Circuit Breaker Response Time
Internal Switch Resistance
External N-Channel Gate Pull-Up Current
External N-Channel Gate Pull-Down Current
External N-Channel Gate Fast Pull-Down
Current
External N-Channel Gate Drive
Power Good Threshold Voltage
Power Good Hysteresis
V
12V
3V
12V
3V
12V
3V
R
12V
3V
CC
AUX
INn
INn
INn
GATEn
INn
INn
INn
GATEn
= (V
– 3V
– 3V
– 12V
– 12V
– 3V
AUXINn
– 12V
SENSEn
SENSEn
OUTn
SENSEn
SENSEn
OUTn
– V
AUXOUTn
)/I
A
= 25°C. V
CONDITIONS
V
12V
3V
AUXINn
V
V
12V
3V
AUXINn Rising
V
12V
3V
AUXINn
(Note 4)
I = 375mA
Gate Drive On
Gate Drive Off
Fast Turn Off
I
12V
3V
AUXOUTn Falling (Note 5)
12V
3V
AUXOUTn (Note 5)
GATE
AUXONn
CC
CC
CC
V
V
V
V
V
V
INn
INn
INn
OUTn
OUTn
12VGATEn
3VGATEn
12VGATEn
3VGATEn
12VGATEn
3VGATEn
The
INn
INn
INn
OUTn
OUTn
Rising
= 1µA (Note 3)
Rising
Rising
Falling
●
CC
= 2V, V
Falling
denotes the specifi cations which apply over the full operating
= 1V
= 8.3V, V
= 8.3V, V
= V
= 1V
= 17V, V
= 17V, V
AUXINn
ONn
= 2V
3VOUTn
3VOUTn
12VOUTn
12VOUTn
= V
3VINn
= 3.3V
= 3.3V
= 12V
= 12V
= 3.3V, V
12VINn
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
= 12V, unless otherwise noted.
10.08
2.772
2.772
MIN
10.1
9.48
2.57
2.57
385
150
150
2.7
3.0
3.0
2.3
0.5
0.5
4.5
4.5
30
90
20
20
45
45
75
75
10
–5
–5
20
5
5
10.38
2.855
2.855
0.35
2.45
9.78
2.67
2.67
0.25
TYP
100
130
100
100
550
250
250
1.6
0.5
5.5
5.5
35
35
50
50
20
–9
–9
70
20
20
1
1
LTC4242
10.08
10.68
2.937
2.937
MAX
14.4
2.77
2.77
200
170
125
125
715
–13
–13
400
400
110
6.0
6.0
6.0
2.6
0.4
7.9
7.9
50
50
55
55
40
30
30
4
1
1
2
2
UNITS
3
4242f
mA
mA
mA
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
mA
mA
mV
mV
mV
µA
µA
µs
Ω
V
V
V
V
V
V
V
V
V
V
V
V
V