Datasheet

LTC4217
3
4217fe
elecTrical characTerisTics
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
DD
= 12V unless otherwise noted.
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
DC Characteristics
V
DD
Input Supply Range
l
2.9 26.5 V
I
DD
Input Supply Current MOSFET On, No Load
l
1.6 3 mA
V
DD(UVL)
Input Supply Undervoltage Lockout V
DD
Rising
l
2.65 2.73 2.85 V
V
DD(UVTH)
Input Supply Undervoltage Threshold LTC4217-12, V
DD
Rising
l
9.6 9.88 10.2 V
∆V
DD(UVHYST)
Input Supply Undervoltage Hysteresis LTC4217-12
l
520 640 760 mV
V
DD(OVTH)
Input Supply Overvoltage Threshold LTC4217-12, V
DD
Rising
l
14.7 15.05 15.4 V
∆V
DD(OVHYST)
Input Supply Overvoltage Hysteresis LTC4217-12
l
183 244 305 mV
V
OUT(PGTH)
Output Power Good Threshold LTC4217-12, V
OUT
Rising
l
10.2 10.5 10.8 V
∆V
OUT(PGHYST)
Output Power Good Hysteresis LTC4217-12
l
127 170 213 mV
I
OUT
OUT Pin Leakage Current V
OUT
= V
GATE
= 0V, V
DD
= 26.5V
V
OUT
= V
GATE
= 12V, LTC4217
V
OUT
= V
GATE
= 12V, LTC4217-12
V
OUT
= V
GATE
= 12V, LTC4217H
l
l
l
l
1
50
1
0
2
70
2
±150
4
90
6
µA
µA
µA
µA
∆V
GATE
/∆t GATE Pin Turn-On Ramp Rate
l
0.15 0.3 0.55 V/ms
R
ON
MOSFET + Sense Resistor On-Resistance
(Note 6)
C-Grade, I-Grade
H-Grade
l
l
15
15
33
33
50
60
mΩ
mΩ
I
LIM(TH)
Current Limit Threshold V
FB
= 1.23V 1.9 2 2.1 A
V
FB
= 1.23V
l
1.85 2 2.15 A
V
FB
= 0V
l
0.35 0.5 0.7 A
V
FB
= 1.23V, R
SET
= 20kΩ
l
0.85 1 1.17 A
orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4217CDHC-12#PBF LTC4217CDHC-12#TRPBF 421712 16-Lead (5mm × 3mm) Plastic DFN 0°C to 70°C
LTC4217IDHC-12#PBF LTC4217IDHC-12#TRPBF 421712 16-Lead (5mm × 3mm) Plastic DFN –40°C to 85°C
LTC4217CDHC#PBF LTC4217CDHC#TRPBF 4217 16-Lead (5mm × 3mm) Plastic DFN 0°C to 70°C
LTC4217IDHC#PBF LTC4217IDHC#TRPBF 4217 16-Lead (5mm × 3mm) Plastic DFN –40°C to 85°C
LTC4217CFE#PBF LTC4217CFE#TRPBF LTC4217FE 20-Lead Plastic TSSOP 0°C to 70°C
LTC4217IFE#PBF LTC4217IFE#TRPBF LTC4217FE 20-Lead Plastic TSSOP –40°C to 85°C
LTC4217HFE#PBF LTC4217HFE#TRPBF LTC4217FE 20-Lead Plastic TSSOP –40°C to 125°C
LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC4217CDHC-12 LTC4217CDHC-12#TR 421712 16-Lead (5mm × 3mm) Plastic DFN 0°C to 70°C
LTC4217IDHC-12 LTC4217IDHC-12#TR 421712 16-Lead (5mm × 3mm) Plastic DFN –40°C to 85°C
LTC4217CDHC LTC4217CDHC#TR 4217 16-Lead (5mm × 3mm) Plastic DFN 0°C to 70°C
LTC4217IDHC LTC4217IDHC#TR 4217 16-Lead (5mm × 3mm) Plastic DFN –40°C to 85°C
LTC4217CFE LTC4217CFE#TR LTC4217FE 20-Lead Plastic TSSOP 0°C to 70°C
LTC4217IFE LTC4217IFE#TR LTC4217FE 20-Lead Plastic TSSOP –40°C to 85°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/