ncv4949a ON Semiconductor, ncv4949a Datasheet - Page 3

• Manufacturer Part Number: ncv4949a
• Description: Ncv4949a 100 Ma, 5.0 V, Low Dropout Voltage Regulator With Reset And Sense
• Manufacturer: ON Semiconductor

ELECTRICAL CHARACTERISTICS
RESET
SENSE
PREREGULATOR
PIN FUNCTION DESCRIPTION
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
Pin
= 25C
= --40 to +125C
1
2
3
4
5
6
7
8
T
= 100 nF, t
T
Symbol
SI
Reset
= 100 nF)
GND
SO
V
V
C
S
V
Decreasing = 1.5 V to 1.0 V)
S
CC
out
O
Z
T
i
Reset
= 5.0 V, V
SI
Z
Characteristic
= 10 mA)
 1.16 V, V
R
= 10 kΩ to V
 100 ms)
Supply Voltage
Input of Sense Comparator
Output of Preregulator
Reset Delay Capacitor
Ground
Output of Reset Comparator
Output of Sense Comparator
Main Regulator Output
Reset
SI
(continued) (V
 1.5 V)
CC
= 5.0 V)
 3.0 V, R
out
, V
CC
CC
 3.0 V)
SO
http://onsemi.com
= 14 V, --40C < T
= 10 kΩ to V
3
out
)
A
< 125C, unless otherwise specified.)
Description
V
V
V
Symbol
Resth,hys
V
CTth, hys
V
SOth,hys
V
V
t
t
I
V
I
ResD
ResR
ResH
Resth
SOH
ResL
CTth
SOth
V
SOL
I
SI
Z
1.16
--1.0
Min
50
50
55
20
--
--
--
--
--
--
--
--
--
1.23
Typ
100
100
100
100
4.5
5.0
2.0
0.1
6.3
--
--
--
--
--
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