MAX1924V Просмотр технического описания (PDF) - Maxim Integrated
Номер в каталоге
Компоненты Описание
производитель
MAX1924V Datasheet PDF : 16 Pages
| |||
Advanced Li+ Battery-Pack Protectors
ELECTRICAL CHARACTERISTICS
(VSRC = VB4P + 0.1V, each battery cell voltage (VCELL) = 3.6V, VCTL = VSHDN = VPKN, TA = -40°C to +85°C, unless otherwise noted.)
PARAMETER
SRC Input Current
Supply Current (Note 1)
Shutdown Supply Current
Charge-Mode Detection
Threshold
Overvoltage Threshold (Note 4)
Undervoltage Threshold (Note 4)
PKN to BN Discharge-Current
Fault Threshold
PKN to BN Charge-Current
Fault Threshold
PKN to BN Discharge-Current
Fault Threshold, Pack Short
Condition
Discharge- or Charge-Current
Fault to DSO, CGO, TKO
Transition Delay Time
Discharge-Current Fault to DSO
Transition Time Delay for Pack
Short Condition
Charge-Voltage Comparator
Threshold for Resetting
Discharge-Current Fault Latch
Discharge-Voltage Comparator
Threshold for Resetting Charge-
Current Fault Latch
DSO, CGO, and TKO Sink
Current
DSO, CGO, and TKO
Source Current
Under/Overvoltage to DSO,
CGO, TKO Transition Delay
SHDN, CTL Input High (Note 6)
SHDN, CTL Input Low (Note 6)
SYMBOL
ISUP
ISHDN
CONDITIONS
VSRC - VB_P = 1V
No faults
Undervoltage without charge source
VSRC - VB4P
VOV_TH
VUV_TH
MAX1894X cell voltage rising
MAX1924X, MAX1924V cell voltage rising
Cell voltage falling
VOD_TH
VOC_TH
VPS_TH
tI-DELAY
tP-DELAY
VSRC - VB4P
VB4P - VSRC
VSRC = 12V, VPIN = 5V (Note 5)
VSRC = 12V, VPIN = 10V
VCTL = 3V (Note 5)
tV-DELAY
Rising edge
Falling edge
MIN TYP MAX UNITS
40
µA
50
µA
2
µA
25
100
mV
4.21
4.29
V
4.32
4.38
2.24
2.36
V
120
170
mV
-130
-70
mV
345
465
mV
2
4
ms
370
480
µs
25
100
mV
25
100
mV
100
µA
3.5
mA
270
370
ms
2.4
V
1.2
V
Note 1: Average current from the top of the battery pack. Measured at VCC.
Note 2: Typical supply current for the top cell during the 0.5ms sampling period.
Note 3: Input bias current for this measurement is valid when all cell voltages are equal and the measurement is made over a time
greater than 3 seconds.
Note 4: Each cell voltage is sampled individually and a differential measurement is made (VB4P - VB3P, VB3P - VB2P, VB2P - VB1P,
and VB1P - BN).
Note 5: VPIN represents VDSO, VCGO, or VTKO.
Note 6: Inputs to SHDN and CTL pins are referred to PKN.
Note 7: Measurements are with respect to VSRC.
4 _______________________________________________________________________________________
Share Link: 