Datasheet
LTC4259A
2
4259afb
Supply Voltages
V
DD
to DGND .......................................... – 0.3V to 5V
V
EE
to AGND ......................................... 0.3V to –70V
DGND to AGND (Note 2) .................................... ±1V
Digital Pins
SCL, SDAIN, SDAOUT, INT, AUTO, RESET
SHDN
n
, AD
n .................
DGND – 0.3V to DGND + 5V
Analog Pins
GATE
n
(Note 3) ................... V
EE
– 0.3V to V
EE
+ 12V
DETECT
n
Peak Currents (Note 4) .................. ±80mA
SENSE
n .................................
V
EE
– 0.3V to V
EE
+ 1V
OUT
n ....................................
V
EE
– 70V to V
EE
+ 70V
OSCIN .......................... DGND – 0.3V to DGND + 5V
BYP Current .................................................... ±1mA
Operating Ambient Temperature Range
LTC4259AC ............................................. 0°C to 70°C
Junction Temperature (Note 5)............................ 150°C
Storage Temperature Range ................ – 65°C to 150°C
Lead Temperature (Soldering, 10 sec)................. 300°C
ORDER PART
NUMBER
T
JMAX
= 150°C, θ
JA
= 80°C/W
LTC4259ACGW
(Note 1)
ABSOLUTE AXI U RATI GS
WWWU
PACKAGE/ORDER I FOR ATIO
UU
W
Consult LTC Marketing for parts specified with wider operating temperature ranges.
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2
3
4
5
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7
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9
10
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12
13
14
15
16
17
18
TOP VIEW
GW PACKAGE
36-LEAD PLASTIC SSOP
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
RESET
BYP
INT
SCL
SDAOUT
SDAIN
AD3
AD2
AD1
AD0
DETECT1
DETECT2
DETECT3
DETECT4
DGND
V
DD
SHDN1
SHDN2
OSCIN
AUTO
OUT1
GATE1
SENSE1
OUT2
GATE2
SENSE2
V
EE
OUT3
GATE3
SENSE3
OUT4
GATE4
SENSE4
AGND
SHDN4
SHDN3
ELECTRICAL CHARACTERISTICS
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. AGND = DGND = 0V, V
DD
= 3.3V, V
EE
= –48V unless otherwise noted
(Note 6).
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Power Supplies
V
DD
V
DD
Supply Voltage ● 3 3.3 4 V
V
EE
V
EE
Supply Voltage To Maintain IEEE Compliant Output (Note 7) ● –48 –57 V
I
DD
V
DD
Supply Current ● 2.5 5 mA
I
EE
V
EE
Supply Current Normal Operation ● –2 –5 mA
Classification Into a Short (V
DETECT
n
= 0V) (Note 8) ● 100 mA
V
DDMIN
V
DD
UVLO Voltage 2.7 V
V
EEMINON
V
EE
UVLO Voltage (Turning On) V
EE
– AGND –31 V
V
EEMINOFF
V
EE
UVLO Voltage (Turning Off) V
EE
– AGND –28 V
Detection
I
DET
Detection Current First Point, V
DETECT
n
= –10V ● 235 300 µA
Second Point, V
DETECT
n
= –3.5V ● 145 190 µA
V
DET
Detection Voltage Compliance Open Circuit, Measured at DETECT
n
Pin ● –20 –23 V
R
DETMIN
Minimum Valid Signature Resistance ● 15.2 17 19 kΩ
R
DETMAX
Maximum Valid Signature Resistance ● 26.7 29 33 kΩ
Classification
V
CLASS
Classification Voltage 0mA < I
CLASS
< 31mA ● –16.4 –21 V
I
CLASS
Classification Current Compliance Into Short (V
DETECT
= 0V) ● 55 75 mA
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/