参数资料
型号: MAX8934CETI+T
厂商: Maxim Integrated Products
文件页数: 6/32页
文件大小: 0K
描述: IC BATTERY CHARGER DUAL 28TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: Smart Power Selector™
功能: 充电管理
电池化学: 锂离子(Li-Ion)、锂聚合物(Li-Pol)
电源电压: 4.1 V ~ 6.6 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(4x4)
包装: 带卷 (TR)
MAX8934A–MAX8934E
Dual-Input Linear Chargers, Smart Power Selector
with Advanced Battery Temperature Monitoring
ELECTRICAL CHARACTERISTICS (continued)
(V DC = V PEN1 = V PEN2 = 5V, CEN = USUS = THMEN = GND, V BATT = 4V, V THM = 1.65V, USB, THMSW, CHG , DONE , OT , DOK ,
UOK , FLT are unconnected, C CT = 0.068 F F, T A = -40 N C to +85 N C, unless otherwise noted. Typical values are at T A = +25 N C.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Prequal Time
Maximum Fast-Charge Time
Maximum Top-Off Time
Timer Accuracy
Timer Extend Threshold
Timer Suspend Threshold
From CEN falling to end of prequal charge, V BATT = 2.5V
From CEN falling to FL T falling
MAX8934A/MAX8934C/MAX8934E
MAX8934B/MAX8934D
Percentage of fast-charge current below where the timer
clock operates at half-speed
Percentage of fast-charge current below where timer
clock pauses
-20
30
300
15
60
50
20
+20
min
min
s
min
%
%
%
THERMISTOR MONITOR (Beta = 3477) (Note 2)
THM Cold No-Charge Threshold
(T1)
THM Cold Threshold (T2)
THM Hot Threshold (T3)
THM Hot No-Charge Threshold
(T4)
THM Hot Overtemperature
Threshold (T OT )
I CHG = 0A, when charging is suspended, 2 N C hysteresis
I CHG reduced (safety region 1 only), V BATT_REG
reduced (safety region 2 only), 2 N C hysteresis
V BATT_REG reduced (safety region 1), 2.5 N C hysteresis
I CHG = 0mA, when charging is suspended, 3 N C
hysteresis
OT asserts low, 5 N C hysteresis
-2.2
73.9
8
64.5
42.8
32.1
57
22.4
71
15.5
0
74.4
10
65
45
32.4
60
22.7
75
15.8
+2.4
75.1
12
65.5
47.5
32.8
63.5
23
80
16
N C
% of
THMSW
N C
% of
THMSW
N C
% of
THMSW
N C
% of
THMSW
N C
% of
THMSW
THERMISTOR MONITOR (Beta = 3964) (Note 3)
THM Cold No-Charge Threshold
(T1)
THM Cold Threshold (T2)
I CHG = 0A, when charging is suspended, 2 N C hysteresis
I CHG reduced (safety region 1 only), V BATT_REG
reduced (safety region 2), 2 N C hysteresis
-2.1
76.4
8.2
66.2
0
77.2
10
67
+2.4
77.9
12
67.6
N C
% of
THMSW
N C
% of
THMSW
6
Maxim Integrated
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