- 您现在的位置：买卖IC网 > PDF目录268194 > NE57607GDH-T (NXP SEMICONDUCTORS) 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 PDF资料下载
参数资料
| 型号： | NE57607GDH-T |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 电源管理 |
| 英文描述： | 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封装： | 4.40 MM, PLASTIC, SOT-530-1, VSOP-8 |
| 文件页数： | 8/10页 |
| 文件大小： | 131K |
| 代理商： | NE57607GDH-T |
Philips Semiconductors
Product data
NE57607
Two-cell Lithium-ion battery protection with
overcurrent, over- and under-voltage protection
2001 Oct 03
7
APPLICATION INFORMATION
SL01567
87
NE57607
5
4
3
21
+
6
–
CHARGER
OR
LOAD
Li-ION CELL
1 M
10 k
10 k
47 k
0.1
F
0.1
F
0.1
F
1 k
330
330
Figure 6. Typical application circuit
The NE57607 drives the series N-Channel MOSFETs to states
determined by each of the cell’s voltage and the battery pack load
current. During normal periods of operation, both the discharge and
charge MOSFETs are in the ON state, thus allowing bidirectional
current flow.
If the battery pack is being charged, and either of the cell’s voltage
exceeds the overvoltage threshold, then the charge MOSFET is
turned OFF (FET towards the pack’s external terminal). The cell’s
voltage must fall lower than the overvoltage hysteresis voltage
(VOV(Hyst)) before the charge MOSFET is again turned ON.
If the battery pack is being discharged and the undervoltage
threshold (VUV(Th)) is exceeded, then the discharge MOSFET is
turned OFF. It will not run back ON until a charger is applied to the
pack’s external terminals AND the cell’s voltage rises above the
undervoltage hysteresis voltage (VUV(Hyst)).
When the battery pack is being discharged, the load current causes
the voltage across the discharge MOSFET to increase past the
overcurrent threshold voltage (VOC(Th)), then the discharge MOSFET
is turned OFF after a fixed 7–18 ms delay. If short-circuit is placed
across the pack’s terminals, then the discharge MOSFET is turned
OFF after a 100–300
s time delay to avoid damaging the MOSFETs.
FET STATUS FOR NORMAL AND ABNORMAL
CONDITIONS
Operating Mode and Charging
Condition
Charge
FET (CF)
Discharge
FET (DF)
Normal (charging or discharging)
ON
Overcharge (charging)
OFF
ON
Overcharge (discharging)
ON
Overdischarge (discharging)
OFF
Overdischarge (charging)
ON
Overcurrent (charging or discharging)
OFF
Normal mode:
Overdischarge detection voltage < battery voltage <overcharge
detection voltage
Discharge current < overcurrent detection level
Overcharge mode:
Battery voltage > overcharge detection voltage
Overdischarge mode:
Overdischarge detection voltage > battery voltage
Overcurrent mode:
Discharge current > overcurrent detection level
voltage between VM and GND = discharge current
× FET ON
resistance (discharge or charge FET)
相关PDF资料 |
PDF描述 |
|---|---|
| NJU7707F26A1 | POWER SUPPLY SUPPORT CKT, PDSO5 |
| NSR368-79I | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| NSR368-79LIPC | 1-OUTPUT DC-DC REG PWR SUPPLY MODULE |
| NFC40-24S12-M4E | 1-OUTPUT 40 W DC-DC REG PWR SUPPLY MODULE |
| NFC40-24S05-MX | 1-OUTPUT 40 W DC-DC REG PWR SUPPLY MODULE |
相关代理商/技术参数 |
参数描述 |
|---|---|
| NE57607H | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Two-cell Lithium-ion battery protection with overcurrent, over- and under-voltage protection |
| NE57607HDH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Two-cell Lithium-ion battery protection with overcurrent, over- and under-voltage protection |
| NE57607K | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Two-cell Lithium-ion battery protection with overcurrent, over- and under-voltage protection |
| NE57607KDH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Two-cell Lithium-ion battery protection with overcurrent, over- and under-voltage protection |
| NE57607XDH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:Two-cell Lithium-ion battery protection with overcurrent, over- and under-voltage protection |
发布紧急采购，3分钟左右您将得到回复。