参数资料
型号: MAX8731AETI+T
厂商: Maxim Integrated Products
文件页数: 5/32页
文件大小: 0K
描述: IC SMBUS LVL2 BATT CHRGR 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
功能: 充电管理
电池化学: 多化学
电源电压: 8 V ~ 26 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-WFQFN 裸露焊盘
供应商设备封装: 28-TQFN-EP(5x5)
包装: 带卷 (TR)
SMBus Level 2 Battery Charger
with Remote Sense
ELECTRICAL CHARACTERISTICS (continued)
(V DCIN = V LX = V CSSP = V CSSN = 19V, V BST - V LX = 4.5V, V FBSA = V FBSB = V CSIP = V CSIN = 16.8V, BATSEL = GND = PGND = 0,
C LDO = 1μF, V CC = LDO, C REF = 1μF, C DAC = 0.1μF, V DD = 3.3V, ACIN = 2.5V; pins CCI, CCV, and CCS are compensated per
Figure 1; T A = 0 ° C to +85 ° C , unless otherwise noted. Typical values are at T A = +25 ° C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
ERROR AMPLIFIERS
GMV Amplifier Transconductance ChargingVoltage() = 16.8V, V FBS_ = 16.8V
0.0625
0.125
0.2500
mA/V
GMI Amplifier Transconductance
ChargingCurrent() = 3968mA, V CSIP - V CSIN = 39.68mV
0.5
1.0
2.0
mA/V
GMS Amplifier Transconductance InputCurrent() = 3968mA, V CSSP - V CSSN = 79.36mV
0.5
1.0
2.0
mA/V
CCI/CCS/CCV Clamp Voltage
0.25V < V CCI/S/V < 2.0V
120
250
600
mV
LOGIC LEVELS
SDA/SCL Input-Low_Voltage
SDA/SCL Input-High_Voltage
V DD = 2.7V to 5.5V
V DD = 2.7V to 5.5V
2.1
0.8
V
V
SDA/SCL Input Bias Current
V DD = 2.7V to 5.5V
-1
+1
μA
BATSEL Input-Low_Voltage
BATSEL Input-High_Voltage
2.1
0.8
V
V
BATSEL Input Bias Current
-1
+1
μA
SDA, Output Sink Current
V (SDA) = 0.4V
6
mA
SMBus TIMING SPECIFICATIONS (V DD = 2.7V to 5.5V) (see Figures 4 and 5)
PARAMETERS
SMBus Frequency
SYMBOL
f SMB
CONDITIONS
MIN
10
TYP
MAX
100
UNITS
kHz
Bus Free Time
Start Condition Hold Time from
SCL
Start Condition Setup Time from
SCL
Stop Condition Setup Time from
SCL
SDA Hold Time from SCL
SDA Setup Time from SCL
t BUF
t HD:STA
t SU:STA
t SU:STO
t HD:DAT
t SU:DAT
4.7
4
4.7
4
300
250
μs
μs
μs
μs
ns
ns
SCL Low Timeout
SCL Low Period
SCL High Period
t TIMEOUT
T LOW
T HIGH
(Note 1)
25
4.7
4
35
ms
μs
μs
Maximum Charging Period
Without a ChargeVoltage() or
140
175
210
s
ChargeCurrent() Command
_______________________________________________________________________________________
5
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