LTC1540IS8#PBF Linear Technology, LTC1540IS8#PBF Datasheet - Page 9

• Manufacturer Part Number: LTC1540IS8#PBF
• Description: IC COMP NANOPOWER W/REF 8-SOIC
• Manufacturer: Linear Technology
• Type: with Voltage Referencer

Specifications of LTC1540IS8#PBF

• Number Of Elements: 1
• Output Type: CMOS, TTL
• Voltage - Supply: 2 V ~ 11 V, ±1 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Comparator Type: General Purpose
• No. Of Comparators: 1
• Response Time: 50µs
• Ic Output Type: CMOS, MOS, Open-Collector / Drain, TTL
• Supply Current: 300nA
• Supply Voltage Range: ± 1V To ± 5.5V
• Rohs Compliant: Yes
• Output Compatibility: CMOS, TTL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

TYPICAL APPLICATIONS
Low-Battery Detect
Figure 9 shows how to use the LTC1540 for a low-battery
detect, drawing only 1.4µA at V
powered by a 2-cell NiCd battery. The V
low as 1.6V when the batteries are completely depleted.
The electrical specifications of the LTC1540 guarantee
BAT
U
= 2V. The circuit is
Figure 9. Low-Battery Detect Works Down to 1.6V
R1
3M
R2
1.1M
BAT
pin could be as
R3
40k
R4
1.2M
R5
1M
3
4
6
5
IN
IN
REF
HYST
+
–
–
+
V
2
–
V
+
7
operation down to a supply voltage of 2V, but it is still
functional with the supply as low as 1.6V. Some param-
eters, such as V
supply voltages. The input voltage range extends from
0.9V below the positive supply to the negative supply.
GND
V
BAT
LTC1540
1
= ~1.6V TO 2.5V
OUT
1540 F09
8
LBO
REF
2-CELL
NiCd
and V
OS
, will be degraded on lower
LTC1540
sn1540 1540fas
9