l4949dw ON Semiconductor, l4949dw Datasheet - Page 3

• Manufacturer Part Number: l4949dw
• Description: 5v / 100ma Ldo W/ Reset, Delay Reset And Early Warning
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
RESET
SENSE
PREREGULATOR
PIN FUNCTION DESCRIPTION
SOIC-8 EP, PDIP-8
Reset Threshold Voltage
Reset Threshold Hysteresis
Reset Pulse Delay (C
Reset Reaction Time (C
Reset Output Low Voltage (R
Reset Output High Leakage Current (V
Delay Comparator Threshold
Delay Comparator Threshold Hysteresis
Sense Low Threshold (V
Sense Threshold Hysteresis
Sense Output Low Voltage (V
Sense Output Leakage (V
Sense Input Current
Preregulator Output Voltage (I
@ T
@ T
A
A
= 25°C
= -40 to +125°C
Pin
1
2
3
4
5
6
7
8
-
T
= 100 nF, t
T
4 - 7, 14 - 17
3, 8, 9, 13, 18
SI
= 100 nF)
SOIC-20W
SO
Decreasing = 1.5 V to 1.0 V)
Reset
= 5.0 V, V
SI
Pin
Z
19
20
10
12
11
1
2
Characteristic
= 10 mA)
≤ 1.16 V, V
R
= 10 kW to V
≥ 100 ms)
Reset
SI
(continued) (V
≥ 1.5 V)
CC
= 5.0 V)
Symbol
≥ 3.0 V, R
out
Reset
GND
V
V
NC
S
V
C
S
CC
out
, V
O
Z
T
i
CC
L4949, NCV4949
≥ 3.0 V)
CC
SO
http://onsemi.com
= 14 V, -40°C < T
= 10 kW to V
Supply Voltage
Input of Sense Comparator
Output of Preregulator
Reset Delay Capacitor
Ground
Output of Reset Comparator
Output of Sense Comparator
Main Regulator Output
No Connect
3
out
)
A
< 125°C, unless otherwise specified.)
V
V
V
Symbol
Resth,hys
CTth, hys
V
SOth,hys
V
V
V
t
t
I
V
I
ResD
ResR
ResH
SOH
Resth
ResL
SOth
CTth
I
V
SOL
SI
Z
Description
1.16
-1.0
Min
50
50
55
20
-
-
-
-
-
-
-
-
-
V
out
1.23
Typ
100
100
100
100
5.0
2.0
0.1
6.3
-
-
-
-
-
- 0.5
Max
1.35
200
300
180
200
0.4
1.0
0.4
1.0
1.0
30
-
-
-
-
Unit
mV
mV
mV
ms
mA
mA
mA
ms
V
V
V
V
V
V