LTC2952 Linear Technology, LTC2952 Datasheet - Page 9

• Manufacturer Part Number: LTC2952
• Description: Pushbutton PowerPath Controller
• Manufacturer: Linear Technology

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TYPICAL PERFORMANCE CHARACTERISTICS
0.01
0.1
2.0
1.8
1.6
1.4
1.2
10
10
1
8
6
4
2
0
0.01
COMPARATOR OVERDRIVE VOLTAGE (% OF V
–50 –25
EN Pull-Down Current
vs Supply Voltage
Typical Transient Duration
vs Comparator Overdrive
(VM, KILL, PFI, M1 and M2)
0
Watchdog Time Period
vs Temperature at Different
Input Voltages
V1 = V2 = VS = V
5
SUPPLY VOLTAGE - V
0.1
0
TEMPERATURE (°C)
10
V1 = V2 = VS = 2.7V
V1 = V2 = VS = 28V
MAX
25
COMPARATOR TRIPS
ABOVE CURVE
15
1
50
EN AT 150mV
20
MAX
EN AT 50mV
75
10
(V)
25
100
2952 G13
2952 G16
2952 G10
100
TH
125
30
)
10000
0.001
1000
0.01
100
480
440
400
360
320
0.1
5.0
4.0
3.0
2.0
1.0
10
1
0
–50 –25
0
EN Pull-Down Current
vs Supply Voltage
KILL On Blanking, KILL Wait Time,
Enable Lockout Time vs Temperature
at Different Input Voltages
0
G1STAT, PFO, INT and RST Pull-
Down Current vs Supply Voltage
V1 = V2 = VS = V
V1 = V2 = VS = V
0.2
5
SUPPLY VOLTAGE - V
SUPPLY VOLTAGE - V
0.4
0
TEMPERATURE (°C)
10
0.6
MAX
MAX
V1 = V2 = VS = 2.7V
25
V1 = V2 = VS = 28V
0.8
15
50
EN AT 150mV
1
20
EN AT 50mV
MAX
MAX
PIN AT 150mV
75
PIN AT 50mV
1.2
(V)
(V)
25
100
1.4
T
2952 G17
2952 G11
2952 G14
A
= 25°C, unless otherwise noted.
125
1.6
30
260
240
220
200
180
160
140
2.5
2.0
1.5
1.0
0.5
2.5
2.0
1.5
1.0
0.5
0
0
–50 –25
Reset Timeout Period
vs Temperature at Different
Input Voltages
0
0
G1STAT, PFO, INT and RST Voltage
Output Low vs Pull-Down Current
at Different Temperatures
EN Voltage Output Low
vs Pull-Down Current at
Different Temperatures
V1 = V2 = VS = 12V
V1 = V2 = VS = 12V
10
5
PULL DOWN CURRENT (mA)
PULL DOWN CURRENT (mA)
20
0
TEMPERATURE (°C)
10
V1 = V2 = VS = 28V
V1 = V2 = VS = 2.7V
25
30
LTC2952
15
50
40
20
75
50
130°C
–45°C
–60°C
25°C
25
90°C
100
60
130°C
90°C
25°C
–45°C
–60°C
2952 G12
2952 G15
2952 G18
2952fa
9
125
30
70