LTC4253AIGN-ADJ Linear Technology, LTC4253AIGN-ADJ Datasheet - Page 3

• Manufacturer Part Number: LTC4253AIGN-ADJ
• Description: IC,Power Control/Management,CMOS,SSOP,20PIN,PLASTIC
• Manufacturer: Linear Technology

Specifications of LTC4253AIGN-ADJ

• Family Name: LTC4253A-ADJ
• Package Type: SSOP N
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 3.99mm
• Product Height (mm): 1.5mm
• Mounting: Surface Mount
• Pin Count: 20
• Lead Free Status / Rohs Status: Not Compliant

temperature range, otherwise specifications are at T
SYMBOL
I
V
V
V
V
I
R
V
V
I
V
V
V
V
V
V
V
I
I
V
V
I
∆I
V
V
ELECTRICAL CHARACTERISTICS
V
SEL
SS
GATE
SENSE
INP
TMR
CB
ACL
FCL
SS
OS
ACL
GATE
GATEL
GATEH
UVHI
UVLO
OVHI
OVLO
TMRH
TMRL
SQTMRH
SQTMRL
SS
CB
∆I
TMRACC
V
DRN
+ V
SS
OS
PARAMETER
SEL Input Current
Circuit Breaker Current Limit Voltage
Circuit Breaker Current Limit Voltage
Fast Current Limit Voltage
SS Voltage
SS Pin Current
SS Output Impedance
Analog Current Limit Offset Voltage
Ratio (V
GATE Pin Output Current
External MOSFET Gate Drive
Gate Low Threshold
Gate High Threshold
UV Pin Threshold
UVL Pin Threshold
OV Pin Threshold
OVL Pin Threshold
SENSE Pin Input Current
UV, UVL, OV, OVL Pin Input Current
TIMER Pin Voltage High Threshold
TIMER Pin Voltage Low Threshold
TIMER Pin Current
(I
SQTIMER Pin Voltage High Threshold
SQTIMER Pin Voltage Low Threshold
TMR
Analog Current Limit Voltage x%
at I
ACL
DRN
+ V
= 50µA – I
OS
) to SS Voltage
50µA
TMR
at I
DRN
= 0µA)
CONDITIONS
V
V
V
V
V
After End of SS Timing Cycle
UV = UVL = OV = OVL = 4V,
V
UV = UVL = OV = OVL = 0V,
V
UV = UVL = OV = OVL = 4V, V
V
UV = UVL = OV = OVL = 4V, V
V
UV = UVL = OV = OVL = 4V, V
V
V
(Before Gate Ramp Up)
V
For PWRGD1, PWRGD2, PWRGD3 Status
UV Low to High
UVL High to Low
OV Low to High
OVL High to Low
UV = UVL = OV = OVL = 4V, V
UV = UVL = OV = OVL = 4V
Timer On (Initial Cycle/Latchoff, Sourcing), V
Timer Off (Initial Cycle, Sinking), V
Timer On (Circuit Breaker, Sourcing,
I
Timer On (Circuit Breaker, Sourcing,
I
Timer Off (Circuit Breaker, Sinking), V
Timer On (Circuit Breaker with I
DRN
DRN
A
SEL
SEL
CB
ACL
FCL
SENSE
SENSE
GATE
GATE
GATE
GATE
GATEH
= 25°C. (Note 2)
= (V
= 0µA), V
= 50µA), V
= (V
= 0V (Sourcing)
= V
= (V
= 0V (Sourcing)
= 3V (Sinking)
= 1V (Sinking)
– V
= V
= V
= V
The
SENSE
IN
SENSE
SENSE
EE,
EE,
EE,
IN
●
I
– V
IN
V
V
TMR
– V
denotes the specifications which apply over the full operating
– V
SS
SS
– V
TMR
= 2mA
GATE
EE
= 0V (Sourcing)
= 1V (Sinking)
EE
= 2V
EE
)
= 2V
)
), SS = Open or 1.4V
,
SENSE
SENSE
SENSE
SENSE
DRN
TMR
= 50µA)
= V
– V
– V
= 50mV (Sourcing)
TMR
= 2V
EE
EE
EE
,
= 0.15V,
= 0.3V,
= 2V
TMR
= 2V
LTC4253A-ADJ
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
5.025
1.25
3.05
3.05
5.04
MIN
105
150
120
3.5
0.8
3.5
10
45
16
30
10
3
3
7
±0.1
±0.1
0.05
3.08
3.08
5.09
5.08
0.33
TYP
120
200
190
200
600
1.4
0.5
2.8
20
50
28
28
50
10
50
17
12
15
28
4
1
5
5
8
4
5.135
MAX
1.55
3.11
3.11
5.14
±10
138
300
280
4.5
1.2
4.5
40
55
40
70
30
±1
V
7
7
9
Z
4253a-adjf
UNITS
µA/µA
3
V/V
mV
mV
mA
mV
mA
mA
mA
kΩ
µA
µA
µA
µA
µA
µA
µA
µA
µA
µA
%
V
V
V
V
V
V
V
V
V
V
V
V