LTC1643L Datasheet, PDF (2/16 Pages) Linear Technology – PCI-Bus Hot Swap Controller

LTC1643L/LTC1643L-1/LTC1643H
ABSOLUTE MAXIMUM RATINGS
(Note 1)
Supply Voltages
12V_IN ................................................................ 13.2V
V_EEIN .............................................................. –13.2V
Input Voltage (Pin 5) ................ – 0.3V to (12V_IN + 0.3V)
Output Voltages (Pins 6, 7) ...... – 0.3V to (12V_IN + 0.3V)
Analog Voltages
(Pins 3, 4, 9, 10 to 14) ........ – 0.3V to (12V_IN + 0.3V)
V_EEOUT ............................................ –13.2V to + 0.3V
12V_OUT .............................................. – 0.3V to 13.2V
Operating Temperature Range
Commercial ............................................. 0°C to 70°C
Industrial ........................................... – 40°C to 85°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
PACKAGE/ORDER INFORMATION
TOP VIEW
12V_IN 1
V_EEIN 2
3V_OUT 3
TIMER 4
ON/ON* 5
FAULT 6
PWRGD 7
GND 8
16 12V_OUT
15 V_EEOUT
14 5V_OUT
13 5V_IN
12 5V_SENSE
11 GATE
10 3V_SENSE
9 3V_IN
GN PACKAGE
16-LEAD NARROW PLASTIC SSOP
* ON FOR LTC1643H, ON FOR LTC1643L
T_JMAX = 150°C, θ_JA = 135°C/ W
ORDER PART
NUMBER
LTC1643HCGN
LTC1643LCGN
LTC1643L-1CGN
LTC1643HIGN
LTC1643LIGN
Consult factory for Military grade parts.
DC ELECTRICAL CHARACTERISTICS
The q denotes specifications which apply over the full operating temperature range, otherwise specifications are TA = 25°C.
V_12VIN = 12V, V_EE = – 12V, V_3VIN = 3.3V, V_5VIN = 5V. (Note 2)
SYMBOL
I_DD
V_LKO
PARAMETER
V_12VIN Supply Current
Undervoltage Lockout
V_FB
Foldback Current Limit Voltage
t_CB
Circuit Breaker Trip Filter Time
I_CP
GATE Pin Output Current
∆V_GATE
V_DROP
External Gate Voltage
Internal Switch Voltage Drop
I_CL
Current Foldback
T_TS
Thermal Shutdown Temperature
V_TH
Power-Good Threshold Voltage
CONDITIONS
MIN TYP MAX
ON = 3V, ON = GND
q
3.5
8
12V_IN
3V_IN
5V_IN
V_FB = (V_5VIN – V_5VSENSE), V_5VOUT = 0V
V_FB = (V_5VIN – V_5VSENSE), V_5VOUT > 4V
V_FB = (V_3VIN – V_3VSENSE), V_3VOUT = 0V
V_FB = (V_3VIN – V_3VSENSE), V_3VOUT > 2V
q
7
9.5
10.8
q 2.25
2.5
2.75
q 2.25
2.5
2.75
q
4
7.5
12
q 40
53
65
q
4
7.5
12
q 40
53
65
14.6
Charge Pump On, V_GATE = GND, FAULT = High q – 20
Charge Pump Off, V_GATE = 5V, FAULT = High
Charge Pump Off, V_GATE = 2V, FAULT = Low
q
3
(V_12VIN – V_GATE)
(V_12VIN – V_12VOUT), I_12VOUT = 500mA C Grade
q
I Grade
q
– 50 – 100
200
10
20
100 200
250 600
250 750
(V_EEOUT – V_EEIN), I_VEEIN = 100mA
12V_IN = 12V, 12V_OUT = 0V
12V_IN, 12V_OUT = 12V
V_EEIN = –12V, V_EEOUT = 0V
V_EEIN, V_EEOUT = – 12V
q
q 50
q 525
q 100
q 225
120 250
250 500
850 1500
160 215
450 800
150
V_12VOUT
LTC1643H/LTC1643L Only
C Grade q 10.8 11.1 11.4
I Grade
q 10.4 11.1 11.4
V_EEOUT
LTC1643H/LTC1643L Only
C Grade
I Grade
q – 10.2 – 10.5 – 10.8
q – 10.0 – 10.5 – 10.8
UNITS
mA
V
V
V
mV
mV
mV
mV
µs
µA
µA
mA
mV
mV
mV
mV
mA
mA
mA
mA
°C
V
V
V
V
2