LTC4222 Linear Technology, LTC4222 Datasheet - Page 3

• Manufacturer Part Number: LTC4222
• Description: Dual Hot Swap Controller
• Manufacturer: Linear Technology

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ORDER INFORMATION
LEAD FREE FINISH
TC4222CG#PBF
LTC4222IG#PBF
LTC4222CUH#PBF
LTC4222IUH#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
Consult LTC Marketing for information on non-standard lead based fi nish parts.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
Supplies
V
I
I
V
V
INTV
INTV
INTV
Current Limit and Circuit Breaker (Both Channels)
ΔV
ΔV
t
I
Gate Drive
ΔV
I
I
I
t
V
Comparator Inputs
V
ΔV
ΔV
DD1
DD2
D(OC)
SENSE(IN)
GATE(UP)
GATE(DN)
GATE(LIM)
PHL(SENSE)
DDn
DDn(UVL)
DDn(HYST)
GS(POWERBAD)
INPUT(TH)
CONFIG,EN,ON(HYST)
SENSE(TH)
SENSE
GATE
FB(HYST)
CC
CC(UVL)
CC(HYST)
PARAMETER
Input Supply Range
V
V
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
External N-Channel Gate Drive
(V
External N-Channel Gate Pull-Up Current
External N-Channel Gate Pull-Down Current
Pull-Down Current from GATE to SOURCE
During OC/UVLO
(V
(GATE-SOURCE) Voltage for Power Bad Fault
CONFIG, EN, FB, ON, OV and UV Input
Threshold
CONFIG, EN, ON Hysteresis
FB Power Good Hysteresis
DD1
DD2
GATE
DD
CC
CC
– SENSE) High to GATE Low
Input Supply Current
Input Supply Current
+
– V
Undervoltage Lockout
Undervoltage Lockout Hysteresis
/
TAPE AND REEL
LTC4222CG#TRPBF
LTC4222IG#TRPBF
LTC4222CUH#TRPBF
LTC4222IUH#TRPBF
–
Pin Input Current
SOURCE
) (Note 3)
DD
– V
DD
SENSE
– V
http://www.linear.com/leadfree/
SENSE
)
PART MARKING*
LTC4222CG
LTC4222IG
LTC4222
LTC4222
http://www.linear.com/tapeandreel/
A
)
= 25°C. V
The
CONDITIONS
V
V
V
I
INTV
V
V
Start-Up Timer Expired
ΔV
V
V
Gate On, V
Gate Off, V
V
V
V
V
INTVCC
DD1
DD2
DD
FB
FB
SENSE
DD
GATE
DD
SOURCE
IN
SENSE
l
DD
Rising
= 1.3V
= 0V
Rising
= 2.9V to 29V
– SENSE = 200mV, C
CC
denotes the specifi cations which apply over the full operating
= 12V
= 12V, I
= 15V, (V
= 12V unless otherwise noted.
= 0mA
= 12V
Rising
= 100mV
= 2.9V to 29V
GATE
GATE
INTVCC
DD
= 0V
= 15V
PACKAGE DESCRIPTION
36-Lead Plastic SSOP
36-Lead Plastic SSOP
32-Lead (5mm × 5mm) Plastic QFN
32-Lead (5mm × 5mm) Plastic QFN
– V
= 0mA
SENSE
GATE
)n = 200mV
= 10nF
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
48.75
1.215
2.34
3.15
2.55
47.5
MIN
130
2.9
4.7
0.8
3.8
60
35
46
14
10
–8
80
0
2
TEMPERATURE RANGE
0°C to 70°C
–40°C to 85°C
0°C to 70°C
–40°C to 85°C
1.235
0.85
2.43
2.64
16.6
TYP
150
–12
450
128
3.3
5.9
0.5
4.3
80
50
50
50
50
20
20
3
1
7
LTC4222
51.25
1.255
MAX
2.53
3.45
2.73
52.5
100
165
–18
180
1.2
6.5
1.5
4.7
29
65
54
19
30
40
20
4
1
UNITS
3
4222f
mA
mA
mV
mV
mV
mV
mV
mV
mV
mA
mA
mV
mV
μA
μA
μs
μs
V
V
V
V
V
V
V