LTC4221CGN Linear Technology, LTC4221CGN Datasheet - Page 3

• Manufacturer Part Number: LTC4221CGN
• Description: IC CTRLR HOTSWAP DUAL 16SSOP
• Manufacturer: Linear Technology
• Type: Hot-Swap Controllerr

Specifications of LTC4221CGN

• Applications: General Purpose
• Internal Switch(s): No
• Voltage - Supply: 1 V ~ 13.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
SYMBOL
I
I
I
ΔV
V
I
V
ΔV
ΔV
I
V
ΔV
ΔV
V
I
I
V
ΔV
I
I
I
V
V
I
V
ΔV
V
I
V
t
t
GATE(UP)
GATE(DN)
GATE(FSTDN)
ON(IN)
V
FB(IN)
FILTER(UP)
FILTER(DN)
TMR(UP1)
TMR(UP2)
TMR(FSTDN)
FAULT(UP)
PWRGD(LK)
P(FC-GATE)
P(SC-FAULT)
GATE(OV)
ON(RESET)
FB(UV)
FB(OV)
FILTER(TH)
TMR(H)
TMR(L)
FAULT(TH)
FAULT(OL)
PWRGD(OL)
ON(OFF)
GATE
ON(RESETHYST)
ON(OFFHYST)
FB(UVHYST)
FB(LREG)
FILTER(HYST)
FAULT(HYST)
PARAMETER
ON n Off Threshold Hysteresis
FB n Input Current
FB n Undervoltage Threshold
FB n Undervoltage Threshold Hysteresis
FB n Threshold Line Regulation
FB n Overvoltage Threshold
FILTER Pull-Up Current
FILTER Pull-Down Current
FILTER Threshold
FILTER Threshold Hysteresis
TIMER Pull-Up Current 1
TIMER Pull-Up Current 2
TIMER Pull-Down Current
TIMER High Threshold
TIMER Low Threshold
FAULT Pull-Up Current
FAULT Threshold
FAULT Hysteresis
FAULT Output Low Voltage
PWRGD n Leakage Current
PWRGD n Output Low Voltage
Fast Comparator Trip to GATE n
Discharging
Slow Comparator Trip to FILTER
High and FAULT Latched
GATE n Output Current
GATE n Output Current
GATE n Output Current
External N-Channel Gate Drive
GATE n Overvoltage Lockout Threshold
ON n Pin Input Current
ON1 Reset Threshold
ON1 Reset Threshold Hysteresis
ON n Off Threshold
A
CONDITIONS
V
V
UVLO with V
Latched with V
V
V
V
V
0V ≤ V
V
High to Low, GATE n Turns Off by 100μA
Pull-Down
0V ≤ V
FB n Falling
2.7V ≤ V
FB n Rising
During Current Fault Condition
During Normal Cycle
Latched Off Threshold, FILTER Rising
Initial Timing Cycle
Start-Up Cycle
V
TIMER Rising
TIMER Falling
FAULT Falling
I
V
I
Normal Cycle
V
V
FILTER Open
FAULT
PWRGD n
= 25°C. V
ON1
ON1
GATE n
GATE n
GATE n
GATE n
ON1
TIMER
PWRGD n
SENSE n
SENSE n
= V
= V
Falling
The
= 1.6mA, V
ON n
FB n
– V
– V
– V
– V
= 1.5V, End of Initial Timing Cycle
= V
= V
CC1
ON2
ON2
= 1.6mA, V
= V
≤ V
CC1
CC1
CC1
CC1
≤ V
●
CC n
CC n
CC1
≤ 13.5V
GATE n
= 2V, V
= 0.6V, V
CC1
indicates specifications which apply over the full operating
CC n
CC1
for V
for V
for V
for V
GATE n
to (V
to (V
, V
= 5V, V
CC1
= 3.3V or FAULT
FB n
CC1
CC1
CC1
CC1
CC1
GATE n
CC n
CC n
= 3.3V
= 5V
GATE n
= 0.7V, Normal Cycle
= 2.7V, V
= 3.3V, V
= 5V, V
= 12V, V
= 5V, V
– 200mV) Step
– 50mV) Step.
CC2
= 0V
= 3.3V
= 3.3V, unless otherwise noted.
CC2
FB n
CC2
CC2
CC2
= 3.3V
= 0V,
= 12V
= 1V
= 2.5V
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
0.375
0.796
0.605
0.805
1.172
0.791
1.15
1.18
–1.2
–2.5
MIN
–80
–15
4.5
0.1
–7
75
5
8
7
±0.01
0.821
±0.01
0.617
0.822
1.234
0.816
±0.01
–105
–1.9
–3.8
–9.5
1.24
0.14
0.14
TYP
100
105
–20
0.4
0.4
1.8
0.4
16
25
30
35
15
3
2
9
1
LTC4221
0.425
0.846
0.629
0.838
0.841
MAX
–132
2.45
1.30
–2.6
1.27
–12
125
–25
±10
0.5
0.5
0.4
0.4
1.5
–5
13
16
16
18
±1
±1
35
UNITS
4221fa
3
mA
mV
mV
mV
mV
mV
mA
mV
μA
μA
μA
μA
μA
μA
μA
μA
μA
μA
μs
μs
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V