Datasheet

(V
IN1
= V
IN2
= 12V, C
IN1
= C
IN2
= C
VS
= 1µF, T
A
= -40°C to +125°C. Typical values are at T
A
= +25°C, unless otherwise noted.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
CB Input Open-Current Voltage V
CB_OPEN
Force ±4µA into unconnected CB pin; then
measure voltage on the CB pin
1.0 V
S
- 1 V
CB Low Voltage V
IL
V
CB
rising 0.4 V
CB High Voltage V
IH
V
CB
falling, relative to V
S
V
S
- 0.2 V
CURRENT MONITORING
Current Monitor vs. Undervoltage
Lockout
I
MON_UVLO
V
S
rising 4.1 4.16 4.23
V
Hysteresis 0.1
IMON Offset (Note 3) I
MON_OS
V
CSP
= 12V
T
A
= +25°C -80 +80
µV
T
A
= -40°C to +85°C -200 +200
T
A
= -40°C to +125°C -240 -240
V
CSP
= 4.8V
to 18V
T
A
= -40°C to +125°C -300 +300
IMON Gain (Note 3) G
IM
V
CSP
= 12V
T
A
= +25°C 2.991 3.009
mS
T
A
= -40°C to +125°C 2.9595 3.0405
V
CSP
= 4.8V
to 18V
T
A
= -40°C to +125°C 2.955 3.045
Current Monitoring Total
Accuracy (Note 4)
I
MON_
ACCURACY
V
CSP
= 12V, R
SENSE
= 3mΩ, I
LOAD
= 1A,
(V
CSP
- V
CSN)
= 3mV, T
A
= +25°C,
I
MON_ACCURACY
= ((I
IMON
- 9µA)/9µA) x
100
-3 +3
%
V
CSP
= 12V, R
SENSE
= 3mΩ, I
LOAD
= 5A,
(V
CSP
- V
CSN)
= 15mV, T
A
= +25°C,
I
MON_ACCURACY
= ((I
IMON
- 45µA)/45µA)
x 100
-0.9 +0.9
V
CSP
= 12V, R
SENSE
= 3mΩ, I
LOAD
=
10A, (V
CSP
- V
CSN)
= 30mV, T
A
= +25°C,
I
MON_ACCURACY
= ((I
IMON
- 90µA)/90µA)
x 100
-0.6 +0.6
CMRR (Note 5) I
MON_CMRR
V
CSP
= 4.8V to 18V 102 dB
Input Voltage Range
(V
CSP
- V
CSN
)
MAX
V
CSP
= 4.8V to 18V, -40°C ≤ T
A
≤ +125°C 30 mV
Output Voltage Range VIMON
MAX
V
CSP
= 4.8V to 18V, -40°C ≤ T
A
≤ +125°C 1.8 V
IMON Voltage Clamp V
IMON_CLMP
V
CSP
- V
CSN
≥ 36mV, V
CSP
= 4.8V to 18V,
-40°C ≤ T
A
≤ +125°C
2.25 2.4 2.5 V
Note 2: All devices are 100% production tested at T
A
= +25°C. Limits over temperature are guaranteed by design.
Note 3: Gain and offset are defined as IMON
1
= IMON with Vi
1
= (V
CSP
- V
CSN
) = 3mV, IMON
2
= IMON with Vi
2
= (V
CSP
- V
CSN
)
= 30mV, G
IM
= (IMON
2
- IMON
1
)/(Vi
2
- Vi
1
), I
MON_OS
= IMON
1
- G
IM
x Vi
1
.
Note 4: Accuracy over the entire operating range can be determined combining the specified value of the related offset and gain in
the range.
Note 5: CMRR is calculated as:
I
REF
= IMON with V
CSP
- V
CSN
= 3mV at V
REF
= V
CSP
= 12V
ICM = IMON with V
CSP
- V
CSN
= 3mV at 4.8V < V
CSP
< 18V
CMRR = 20 x LOG(ABS((V
REF
- V
CSP
)/(I
REF
- ICM)) x G
IM
)
where G
IM
is the differential gain defined in the EC table.
MAX15068 Dual ORing, Single Hot-Swap Controller with
Accurate Current Monitoring
www.maximintegrated.com
Maxim Integrated │ 5
Electrical Characteristics (continued)