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参数资料
| 型号： | MAX17015AETP+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/23页 |
| 文件大小： | 0K |
| 描述： | IC BATT CHARGER 1.2MHZ 20TQFN |
| 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： | 20-WFQFN 裸露焊盘 |
| 供应商设备封装： | 20-TQFN-EP（4x4） |
| 包装： | 带卷 (TR) |
1.2MHz, Low-Cost,
High-Performance Chargers
BDIV
OVP
SET POINT + 100mV
CSI
IMAX
11A
CCMP
LVC
IMIN
1A
ZCMP
1A
CSSP
OFF-TIME
COMPUTE
CSIN
Figure 6. DC-DC Converter Functional Diagram
R
S
OFF-TIME
ONE SHOT
Q
Q
DH DRIVER
DL DRIVER
The operation of the DC-to-DC controller is determined
by the following five comparators as shown in the func-
tional diagram in Figures 2 and 6:
? The IMIN comparator triggers a pulse in discontinu-
ous mode when the accumulated error is too high.
IMIN compares the control signal (LVC) against
10mV (referred at V CSIP - V CSIN ). When LVC is less
than this threshold, DHI and DLO are both forced
low. Indirectly, IMIN sets the peak inductor current
in discontinuous mode.
The high-side MOSFET on-time is terminated when
the current-sense signal exceeds 11A. A new cycle
cannot start until the IMAX comparator ’s output
goes low.
? The ZCMP comparator provides zero-crossing detec-
tion during discontinuous conduction. ZCMP com-
pares the current-sense feedback signal to 1A (RS2
= 10m Ω ). When the inductor current is lower than
the 1A threshold, the comparator output is high,
and DLO is turned off.
?
?
The CCMP comparator is used for current-mode
regulation in continuous-conduction mode. CCMP
compares LVC against the inductor current. The
high-side MOSFET on-time is terminated when the
CSI voltage is higher than LVC.
The IMAX comparator provides a secondary cycle-
by-cycle current limit. IMAX compares CSI to
110mV (corresponding to 11A when RS2 = 10m Ω ).
?
The OVP comparator is used to prevent overvoltage
at the output due to battery removal. OVP com-
pares BATT against the VCTL. When BATT is
100mV/cell above the set value, the OVP compara-
tor output goes high, and the high-side MOSFET
on-time is terminated. DHI and DLO remain off until
the OVP condition is removed.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX17015BETP+ | 功能描述:电池管理 1.2MHz High-Perf Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17015BETP+T | 功能描述:电池管理 1.2MHz High-Perf Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17015ETP+ | 功能描述:电池管理 1.2MHz High-Perf Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17015ETP+T | 功能描述:电池管理 1.2MHz High-Perf Charger RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| MAX17015ETP+TG51 | 功能描述:电池管理 RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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