LTC4215 Linear Technology, LTC4215 Datasheet - Page 3

• Manufacturer Part Number: LTC4215
• Description: Hot Swap Controller
• Manufacturer: Linear Technology

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temperature range, otherwise specifi cations are at T
SYMBOL
Supplies
V
V
I
V
V
INTV
INTV
INTV
Current Limit and Circuit Breaker
ΔV
ΔV
t
I
Gate Drive
ΔV
I
I
I
t
V
Comparator Inputs
V
ΔV
I
V
ΔV
I
V
ΔV
I
V
ΔV
I
V
ΔV
V
ELECTRICAL CHARACTERISTICS
DD
D(OC)
SENSE(IN)
GATE(UP)
GATE(DN)SLOW
GATE(DN)FAST
PHL(SENSE)
ON(IN)
⎯ E ⎯ N
OV(IN)
UV(IN)
DD
OV(VDD)
DD(UVL)
DD(HYST)
GS(POWERBAD)
ON(TH)
⎯ E ⎯ N (TH)
OV(TH)
UV(TH)
UV(RTH)
FB
SENSE(TH)
SENSE
GATE
ON(HYST)
⎯ E ⎯ N (HYST)
OV(HYST)
UV(HYST)
UV(RHYST)
CC
CC(UVL)
CC(HYST)
PARAMETER
Input Supply Range
Input Supply Overvoltage Threshold
Input Supply Current
Input Supply Undervoltage Lockout
Input Supply Undervoltage Lockout Hysteresis
Internal Regulator Voltage
INTV
INTV
Circuit Breaker Threshold (V
Current Limit Voltage (V
OC Fault Filter
SENSE Pin Input Current
External N-Channel Gate Drive (V
(Note 3)
External N-Channel Gate Pull-Up Current
External N-Channel Gate Pulldown Current
Pulldown Current From GATE to SOURCE
During OC/UVLO
(V
Gate-Source Voltage for Power Bad Fault
ON Pin Threshold Voltage
ON Pin Hysteresis
ON Pin Input Current
⎯ E ⎯ N Input Threshold
⎯ E ⎯ N Hysteresis
⎯ E ⎯ N Pin Input Current
OV Pin Threshold Voltage
OV Pin Hysteresis
OV Pin Input Current
UV Pin Threshold Voltage
UV Pin Hysteresis
UV Pin Input Current
UV Pin Reset Threshold Voltage
UV Pin Reset Threshold Hysteresis
Foldback Pin Power Good Threshold
DD
CC
CC
– SENSE) High to GATE Low
Undervoltage Lockout
Undervoltage Lockout Hysteresis
DD
– V
DD
SENSE
– V
GATE
SENSE
)
– V
)
SOURCE
A
= 25°C. V
)
The
CONDITIONS
V
V
INTV
V
V
Start-Up Timer Expired
ΔV
V
V
Gate On, V
Gate Off, V
V
V
V
V
V
V
⎯ E ⎯ N = 3.5V
V
V
V
V
V
FB Rising
DD
DD
FB
FB
SENSE
DD
DD
DD
SOURCE
ON
ON
⎯ E ⎯ N
OV
OV
UV
UV
UV
SENSE
●
DD
= 1.3V
= 0V
= Rising
Rising
= 1.8V
Rising
= 1.8V
Falling
Rising
≥ 3.3V
= 2.9V to 15V
– SENSE = 100mV, V
– SENSE = 100mV, C
Rising
= 1.2V
CC
denotes the specifi cations which apply over the full operating
= 12V unless otherwise noted.
= 12V
Rising
= 2.9V – 15V
= 50mV
GATE
GATE
= 0V
= 15V
GS
GS
= 4V
= 10nF
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
1.210
1.215
1.215
1.215
1.215
MIN
2.75
2.55
22.5
0.33
–15
300
2.9
2.9
6.5
4.7
0.8
3.8
15
75
20
22
65
15
10
60
50
10
60
60
1.235
1.235
1.235
1.235
1.235
15.6
2.84
2.64
TYP
100
–20
450
128
128
125
3.1
5.9
0.5
4.3
0.4
55
25
25
10
75
20
20
30
80
3
1
0
0
0
0
LTC4215
1.255
1.255
1.255
1.255
MAX
16.5
2.89
2.79
27.5
1.26
0.47
125
–30
700
180
200
100
210
3.4
6.5
1.6
4.7
15
75
29
13
90
30
35
±1
±1
40
±1
±1
5
1
UNITS
4215fb
3
mA
mV
mV
mV
mV
mV
mV
mA
mA
mV
mV
mV
mV
mV
µA
µA
µA
µA
µA
µA
µs
µs
V
V
V
V
V
V
V
V
V
V
V
V
V