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參數(shù)資料
| 型號： | MAX1894 |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | Fixed-Point Digital Signal Processor 256-BGA |
| 中文描述： | 高級Li+電池組保護器 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 308K |
| 代理商： | MAX1894 |
M
Advanced Li+ Battery-Pack Protectors
4
_______________________________________________________________________________________
Note 1:
Average current from the top of the battery pack. Measured at V
CC
.
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 (V
B4P
- V
B3P
, V
B3P
- V
B2P
, V
B2P
- V
B1P
,
and V
B1P
- BN).
Note 5:
V
PIN
represents V
DSO
, V
CGO
, or V
TKO
.
Note 6:
Inputs to SHDN and CTL pins are referred to PKN.
Note 7:
Measurements are with respect to V
SRC
.
ELECTRICAL CHARACTERISTICS
(V
SRC
= V
B4P
+ 0.1V, each battery cell voltage (V
CELL
) = 3.6V, V
CTL
= V
SHDN
= V
PKN
,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
40
50
2
UNITS
μA
μA
μA
SRC Input Current
Supply Current (Note 1)
Shutdown Supply Current
Charge-Mode Detection
Threshold
V
SRC
- V
B_P
= 1V
No faults
Undervoltage without charge source
I
SUP
I
SHDN
V
SRC
- V
B4P
25
100
mV
MAX1894X cell voltage rising
MAX1924X, MAX1924V cell voltage rising
Cell voltage falling
4.21
4.32
2.24
4.29
4.38
2.36
Overvoltage Threshold (Note 4)
V
OV_TH
V
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)
V
UV_TH
V
V
OD_TH
120
170
mV
V
OC_TH
-130
-70
mV
V
PS_TH
345
465
mV
t
I-DELAY
2
4
ms
t
P-DELAY
370
480
μs
V
SRC
- V
B4P
25
100
mV
V
B4P
- V
SRC
25
100
mV
V
SRC
= 12V, V
PIN
= 5V (Note 5)
100
μA
V
SRC
= 12V, V
PIN
= 10V
V
CTL
= 3V (Note 5)
3.5
mA
t
V-DELAY
270
370
ms
Rising edge
Falling edge
2.4
V
V
1.2
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| MAX1925 | Fixed-Point Digital Signal Processor 548-FCBGA |
| MAX1926 | Switch-Mode 1-Cell Li+ Chargers |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1894EVKIT | 功能描述:電源管理IC開發(fā)工具 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V |
| MAX1894XEEE | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1894XEEE-T | 功能描述:電池管理 RoHS:否 制造商:Texas Instruments 電池類型:Li-Ion 輸出電壓:5 V 輸出電流:4.5 A 工作電源電壓:3.9 V to 17 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:VQFN-24 封裝:Reel |
| MAX1895EGI | 功能描述:顯示驅動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
| MAX1895EGI-T | 功能描述:顯示驅動器和控制器 RoHS:否 制造商:Panasonic Electronic Components 工作電源電壓:2.7 V to 5.5 V 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Reel |
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