MAX9928F Maxim, MAX9928F Datasheet - Page 4

• Manufacturer Part Number: MAX9928F
• Description: The MAX9928F/MAX9929F low-cost, uni-/bidirectional, high-side, current-sense amplifiers are ideal for monitoring battery charge and discharge currents in notebooks, cell phones, and other portable equipment
• Manufacturer: Maxim

-0.1V to +28V Input Range, Micropower,
Uni-/Bidirectional, Current-Sense Amplifiers
ELECTRICAL CHARACTERISTICS (continued)
(V
wise noted. Typical values are at T
4
Note 1: All devices are 100% production tested at T
Note 2: V
Note 3: Guaranteed by common-mode rejection ratio. Extrapolated V
Note 4: Includes input bias current of SIGN comparator.
Note 5: Leakage in to RS+ or RS- when V
Note 6: Output voltage should be 650mV below V
Note 7: I
Note 8: V
Note 9: Discharge to charge trip point is functionally tested at V
Note 10: Guaranteed by PSRR test. Extrapolated V
AC ELECTRICAL CHARACTERISTICS
-3dB Bandwidth
OUT Settling to 1% of Final Value
SIGN Comparator Propagation
Delay (Low to High)
SIGN Comparator Propagation
Delay (High to Low)
Power-Up Time to 1% of Final
Value
Saturation Recovery Time
RS+
_______________________________________________________________________________________
= -0.1V to +28V, V
+5mV and V
transconductance, and gain. These V
in the opposite direction (V
3.6V. See the Detailed Description for more information.
rejection ratio.
add to the bias current.
V
V
OL
PARAMETER
OS
SENSE
SENSE
SENSE
is the minimum output current in the V
is extrapolated from two point transconductance and gain accuracy tests. Measurements are made at V
- V
voltage required to switch comparator.
has to be such that the output voltage is 650mV below V
OUT
SENSE
CC
transfer characteristic.
= 3.3V, V
= +50mV for MAX992_F. These measurements are also used to test the full-scale sense voltage,
A
= +25°C.) (Note 1)
RS-
SYMBOL
t
t
PROP_LH
PROP_HL
SENSE
t
BW
SET
> V
CC
RS+
= (V
= 0V. Includes input leakage current of SIGN comparator. This specification does not
OS
), V
MAX992_F, V
V
C
R
MAX9928F
Overdrive = 1mV
Overdrive = 5mV
Overdrive = 1mV
Overdrive = 5mV
V
100mV ≤ V
V
RS+
V
RS+
OUT
SENSE
RS+
LOAD
RS+
specifications are for the trimmed direction only (V
OS
CC
OS
SENSE
- V
A
is ±1mV (max) at +25°C and ±1.8mV (max) over temperature, when V
= 3.6V,
= 3.6V, C
= 10kΩ for
as described in Note 2 is used to calculate the power-supply rejection ratio.
to achieve full accuracy.
= 3.6V, C
= +25°C. All temperature limits are guaranteed by design.
= 10pF,
RS-
= 50mV for MAX992_F,
- I
) = 0V, R
SENSE
OUT
SENSE
LOAD
CONDITIONS
LOAD
transfer characteristics. V
CM
≤ 50mV for MAX992_F,
MAX992_F, V
5mV to 50mV step
MAX992_F, V
50mV to 5mV step
OUT
= 50mV
= -0.1V, +3.6V, and +28V.
= 10pF
= 10pF
OS
= 10kΩ for MAX9928F, T
as described in Note 2 is used to calculate common-mode
CC
to achieve full accuracy.
SENSE
SENSE
=
=
OL
is the minimum output voltage in the
MIN
A
= -40°C to +125°C, unless other-
RS+
> V
TYP
150
15
80
30
50
13
50
6
4
RS-
). For current flowing
MAX
SENSE
RS+
UNITS
=
kHz
ms
µs
µs
µs
µs
is at