CS8151C Cherry Semiconductor Corporation, CS8151C Datasheet - Page 3

• Manufacturer Part Number: CS8151C
• Description: 5V/ 100mA Low Dropout Linear Regulator with Watchdog/ RESET/ & Wake Up
• Manufacturer: Cherry Semiconductor Corporation

Watchdog Input
Wake Up Output
Threshold
Hysteresis
Input Current
Pulse Width
Wake Up Period
Wake Up Duty Cycle nominal
Rising Delay Time
Wake Up Response
Wake Up Response
Output
Current Limit
RESET
Package Lead #
HIGH
LOW
to Watchdog Input
to
LOW
HIGH
8 L PDIP
PARAMETER
RESET
Electrical Characteristics: T
1
2
3
4
5
7
8
HIGH to Wake Up
Lead Symbol
Wake Up
RESET
Delay
C2 = 47µF (ESR < 8½), C
V
WDI
Gnd
V
OUT
IN
0 < WDI < 6V
50% WDI falling edge to
50% WDI rising edge and
50% WDI rising edge to 50%
WDI falling edge (see Figure 1)
see Figure 1a
see Figure 1c
50%
50% Wake Up edge
(see Figure 1)
50% WDI falling edge to
50% Wake Up falling edge
50%
50% Wake Up falling edge
V
I
I
Wake Up = 5V
Wake Up = 0V
A
OUT
OUT
OUT
= 0¡C to 70¡C, 0¡C ² T
TEST CONDITIONS
= 25µA(sinking)
= 25µA(sourcing)
RESET
RESET
= 5V®4.5V
Package Lead Description
rising edge to
falling edge to
Supply voltage to the IC.
CMOS/TTL compatible input lead. The watchdog function monitors
CMOS/TTL compatible output consisting of a continuously generated
CMOS/TTL compatible output lead
Input lead from timing capacitor for
Ground Connection
Regulated output voltage 5V ± 2%.
the falling edge of the incoming signal.
signal used to Wake Up the microprocessor from sleep mode.
drops by more than 6% from nominal, or during the absence of a cor-
rect watchdog signal.
Delay
= 0.1µF (unless otherwise noted)
3
J
² 125¡C, 6V ² V
0.025
Function
MIN
-10
0.8
3.8
.05
IN
25
30
40
15
5
² 26V, I
RESET
RESET
OUT
1.00
TYP
100
1.4
1.3
0.2
4.2
40
50
20
0
2
2
= 100µA to 100mA,
goes low whenever V
and Wake Up signal.
MAX
7.00
3.50
+10
2.0
0.8
5.1
50
60
25
10
10
UNIT
mA
mA
mV
µA
ms
ms
µs
µs
µs
%
V
V
V
V
OUT