Electrical characteristics (continued) – Rainbow Electronics MAX769 User Manual
Page 4
V
MAX769
2 or 3-Cell, Step-Up/Down,
Two-Way Pager System IC
4
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ELECTRICAL CHARACTERISTICS (continued)
(OUT = 3.0V, BATT = 3.6V, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
10mV overdrive
REG3 Output Voltage
µs
I
REG3
= 0 to 2mA
0.96
1.0
1.04
V
I
REG2
= 0 to 24mA, OUT = 3.0V, R
OFS
= 15k
Ω
mV
120
155
190
REG2 Voltage Drop
3.2
3.3
3.4
15
50
LBO/RSO Response Time
(Note 16)
OUT = 3.0V, I
REG1
= 65mA
f = 268.8kHz, C
REG1
= 10µF ceramic
Falling input
CONDITIONS
V
f = 268.8kHz, C
REG1
= 10µF, ceramic, R
OFS
= 15k
Ω
,
C
OFS
= 0.1µF, I
REG2
= 15mA
dB
30
40
REG2 Supply Rejection
(Note 16)
f = 268.8kHz, C
REG1
= 1µF ceramic
dB
40
50
REG3 Supply Rejection (Note 16)
0.58
0.60
0.63
LBI/RSIN Input Threshold
At thresholds of 200mV, 800mV, and 1270mV
%
-2.0
2.0
- 15mV
+ 15mV
CH0 Error
At thresholds of 1200mV, 3200mV, and 5080mV
%
-3.0
3.0
- 60mV
+ 60mV
mV
10
CH0 Threshold Resolution
(Note 16)
V
0.2
1.27
CH0 Threshold Range (Note 16)
Measures NICD
V
1.2
5.08
CH1 Threshold Range (Note 16)
Measures BATT
V
CH1 Error
I
REG2
= 0.1mA to 24mA
mV
nA
-50
-3
50
LBI/RSIN Input Current
1.2
5.08
I
OUT
= 1mA
CH2 Threshold Range (Note 16)
Measures BATT
mV
mV
40
CH2 Threshold Resolution
(Note 16)
30
400
LBO/RSO Output Low
Measures NICD
mV
Output = 5.5V
nA
1
250
LBO/RSO Output Leakage
40
CH1 Threshold Resolution
(Note 16)
Ω
1.5
3.1
REG1 PMOS On-Resistance
dB
15
25
mV
REG1 Supply Rejection (Note 16)
7.5
16
30
LBI/RSIN Input Hysteresis
(Note 16)
9
REG2 Load Regulation
UNITS
MIN
TYP
MAX
PARAMETER
I
OUT
= 1mA, OUT = 4.9V
V
3.15
3.45
REG1 Clamp Voltage
T
A
= +25°C
T
A
= -40°C to +85°C
At thresholds of 1200mV, 3200mV, and 5080mV
%
-3.0
3.0
- 60mV
+ 60mV
CH2 Error
mV
1
2
4
CH0 Input Hysteresis (Note 16)
LINEAR REGULATORS
DATA-ACQUISITION AND VOLTAGE MONITORS
CH1 Input Hysteresis (Note 16)
4
8
16
mV