Rainbow Electronics 71M6542G - Manual (Page 143)

v1.1 © 2008–2011 Teridian Semiconductor Corporation 143
6.4.6 V3P3D Switch
Table 101: V3P3D Switch Performance Specifications
Parameter Condition Min Typ Max Unit
On resistance – V3P3SYS to V3P3D | I
V3P3D
|
≤ 1 mA
10
Ω
On resistance – VBAT to V3P3D | I
V3P3D
|
≤ 1 mA,
VBAT>2.5V
10
Ω
V3P3D I
OH
, MSN V3P3SYS = 3V
V3P3D = 2.9V
10 mA
V3P3D I
OH
, BRN VBAT = 2.6V
V3P3D = 2.5V
10 mA
6.4.7 Internal Power Fault Comparators
Table 102. Internal Power Fault Comparator Specifications
Parameter Condition Min Typ Max Unit
Overall response time
100mV overdrive, falling
100mV overdrive, rising 20 200
200
µs
µs
Falling Threshold
3.0 V Comparator
2.8 V Comparator
Difference 3.0V and 2.8V Comparators V3P3 falling
2.83
2.75
50
2.93
2.81
136
3.03
2.87
220
V
V
mV
Falling Threshold
2.25 V Comparator
2.0 V Comparator
VDD (@VBAT=3.0V) – 2.25V Comparator
Difference 2.25V and 2.0V Comparators VDD falling
2.2
1.90
0.25
0.15
2.25
2.00
0.35
0.25 2.5
2.20
0.45
0.35
V
V
V
V
Hysteresis,
(Rising Threshold - Falling Threshold)
3.0 V Comparator
2.8 V Comparator
2.25 V Comparator
2.0 V Comparator T
A
= 22 °C
22
25
10
10 45
42
33
28 65
60
60
60 mV
mV
mV
mV
6.4.8 2.5 V Voltage Regulator – System Power
Table 103: 2.5 V Voltage Regulator Performance Specifications
Parameter Condition Min Typ Max Unit
V2P5
V3P3 = 3.0 V - 3.8 V
I
LOAD = 0 mA
2.55 2.65 2.75 V
V2P5 load regulation
VBAT = 3.3 V , V3P3 = 0 V
I
LOAD = 0 mA to 1 mA
40 mV
Voltage overhead V3P3SYS-V2P5
I LOAD = 5 mA,
Reduce V3P3D until V2P5
drops 200 mV 440 mV