LTC2954ITS8-1#TRPBF Linear Technology, LTC2954ITS8-1#TRPBF Datasheet - Page 4

• Manufacturer Part Number: LTC2954ITS8-1#TRPBF
• Description: IC PB ON/OFF CONTROLLER TSOT23-8
• Manufacturer: Linear Technology

Specifications of LTC2954ITS8-1#TRPBF

• Applications: Push Button, On/Off Controller
• Voltage - Supply: 2.7 V ~ 26.4 V
• Current - Supply: 6µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-8, TSOT-8
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Input: -

LTC2954
ELECTRICAL CHARACTERISTICS
TYPICAL PERFORMANCE CHARACTERISTICS
4
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into pins are positive; all voltages are referenced to
GND unless otherwise noted.
Note 3: The KILL turn-on blanking timer period is the waiting period
immediately after the enable output is asserted. This blanking time allows
sufficient time for the DC/DC converter and the μP to perform power-up
tasks. The KILL and PB inputs are ignored during this period. If KILL
remains low at the end of this time period, the enable output is released,
10000
1000
100
10
10
8
6
4
2
0
–50
1
Supply Current vs Temperature
Turn-On Debounce Time (t
t
ONT
T
V
A
IN
= 25°C
= 3.3V
) vs ONT External Capacitance
ONT EXTERNAL CAPACITANCE (nF)
–25
V
IN
= 26.4V
TEMPERATURE (°C)
10
0
V
IN
= 3.3V
25
100
50
V
IN
DB, ON
= 2.7V
75
2954 G04
2954 G01
1000
+
100
–3.4
–3.2
–3.0
–2.8
–2.6
15
12
9
6
3
0
–50
0
ONT Pull-Up Current
vs Temperature
Supply Current vs Supply Voltage
5
–25
10
TEMPERATURE (°C)
T = 85°C
0
V
15
IN
V
= 2.7V
IN
25
thus turning off system power. This time delay does not include t
or t
Note 4: To manually force an immediate release of the EN/EN pin, the
pushbutton input must be held low for at least t
power-down timer) + t
PDT pin).
Note 5: The enable lockout time is designed to allow an application to
properly power-down such that the next power-up sequence starts from a
consistent powered-down configuration. PB is ignored during this lockout
time. This time delay does not include t
(V)
T = 25°C
20
V
ONT
IN
T = –40°C
50
= 26.4V
.
25
75
30
2954 G02
2954 G05
100
35
PDT
(adjustable by placing external capacitor at
50
40
30
20
10
50
40
30
20
10
0
0
Internal Default Turn-On
Debounce Time (t
0
Turn-Off Debounce Time (t
vs V
0
T
T
A
A
= 25°C
= 25°C
IN
DB,ON
5
5
or t
10
10
PD,MIN
ONT
V
V
IN
IN
.
15
15
DB, ON
(V)
(V)
(internal default
20
20
) vs V
DB, OFF
DB,ON
25
25
IN
2954 G03
2954 G06
2954fb
)
30
30