CS8140YDW24 CHERRY [Cherry Semiconductor Corporation], CS8140YDW24 Datasheet - Page 3

• Manufacturer Part Number: CS8140YDW24
• Description: 5V, 500mA Linear Regulator with ENABLE, , and Watchdog RESET
• Manufacturer: CHERRY [Cherry Semiconductor Corporation]

* The CS8141 uses a fused lead package. Leads 6-8 and 17-19 are fused together through the lead frame. These leads are
* R
** CS8140 only
To observe safe operating junction temperature, low duty cycle pulse testing is used on tests where applicable.
electrically connected to IC ground and should be connected to system ground for a good thermal connection.
TO-220
Watchdog
7 Lead
Threshold
Threshold Hysteresis(V
Reset Output Leakage
Output Voltage
Delay Times
Input Voltage
Input Current
Threshold Frequency
RESET
P
N/A
is connected to
1
2
3
4
5
6
7
HIGH V
LOW V
Low(V
Low (V
t
t
HIGH
LOW
f
f
RESET
POR
WDI(
WDI LOWER
WDI(UPPER)
PARAMETER
RESET
1,6-11,13-19,22
Package Lead #
L(LOW)
Rpeak
R(LOW)
SOIC Wide
= HIGH
R(HI)
24 Lead *
)
**
12, 20
)
21
23
24
2
3
4
)
5
RESET
RH
and V
)
14 Lead
PDIP
OUT
5-10
V
V
(HIGH - LOW)
V
1V ² V
Rp = 2.7k½*
V
C
WDI ² V
C
12
13
14
11
1
2
3
4
OUT
OUT
OUT
OUT
DELAY
DELAY
.
, Power up, Power down
increasing
decreasing
³ V
OUT
TEST CONDITIONS
= 0.1µF
= 0.1µF
Electrical Characteristics: continued
OUT
R(HI)
Lead Symbol
² V
V
ENABLE
Gnd
Delay
WDI
V
Sense
NC
Package Lead Description
RESET
IN
OUT
R(LOW)
3
Supply voltage to IC, usually direct from the battery.
CMOS compatible logical input. V
ENABLE is LOW and WDI is beyond its preset limits.
CMOS compatible output lead.
V
2µs or WDI signal falls outside itÕs window limits.
Ground connection.
Timing capacitor for Watchdog and
CMOS compatible input lead. The Watchdog function mon-
itors the falling edge of the incoming digital pulse train. The
signal is usually generated by the system microprocessor.
Regulated output voltage, 5V (typ).
Kelvin connection which allows remote sensing of output
voltage for improved regulation.
No connection.
OUT
drops below 4.5% of its typical value for more than
MIN
4.65
4.50
150
30.0
0.5
2.0
64
218
Function
4.90
4.70
200
0.1
0.6
47.5
1.0
0
77
262
TYP
RESET
RESET
OUT
V
OUT
goes low whenever
is disabled when
4.90
250
25
0.4
1.0
65.0
1.5
0.8
10
96
326
MAX
- 0.05
functions.
UNIT
V
V
mV
µA
V
V
ms
ms
V
V
µA
Hz
Hz