Figure 17-6. lvr (low voltage reset) timing – Samsung S3C8275X User Manual
Page 304
S3C8275X/F8275X/C8278X/F8278X/C8274X/F8274X
ELECTRICAL
DATA
17-9
Table 17-6. Battery Level Detector Electrical Characteristics
(T
A
= 25
°
C, V
DD
= 2.0 V to 3.6 V)
Parameter Symbol
Conditions Min
Typ
Max
Unit
Operating voltage of BLD
V
DDBLD
−
2.0
−
3.6 V
Voltage of BLD
V
BLD
BLDCON.2-.0 = 000b
2.0
2.2
2.4
BLDCON.2-.0 = 101b
2.15
2.4
2.65
BLDCON.2-.0 = 011b
2.5
2.8
3.1
Current consumption
I
BLD
V
DD
= 3.3 V
−
70 120
µA
V
DD
= 2.2 V
−
50 100
Hysteresis voltage of BLD
∆V
BLDCON.2-0 = 000b,
101b, 011b
−
10 100 mV
BLD circuit response time
T
B
Fw = 32.768 kHz
−
−
1 ms
Table 17-7. LVR (Low Voltage Reset) Electrical Characteristics
(T
A
= 25
°
C)
Parameter Symbol
Conditions Min
Typ
Max
Unit
Voltage of LVR
V
LVR
T
A
= 25
°
C
2.0 2.2 2.4 V
V
DD
voltage rising time
t
R
−
10
−
−
µs
V
DD
voltage off time
t
OFF
−
0.5
−
−
s
Hysteresis voltage of LVR
∆V
−
−
10 100 mV
Current consumption
I
DDPR
V
DD
= 3.3 V
−
70 120
µA
NOTES:
1. The current of LVR circuit is consumed when LVR is enabled by "Smart Option"
2. Current consumed when low voltage reset circuit is provided internally.
t
R
t
OFF
0.9 V
DD
0.1 V
DD
V
DD
Figure 17-6. LVR (Low Voltage Reset) Timing