R5400N4030FB [RICOH]
Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO5, SOT-23-5, 5 PIN;型号: | R5400N4030FB |
厂家: | RICOH ELECTRONICS DEVICES DIVISION |
描述: | Power Supply Support Circuit, Fixed, 1 Channel, CMOS, PDSO5, SOT-23-5, 5 PIN 光电二极管 |
文件: | 总1页 (文件大小:80K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
R5400N Series
Li-ion/polymer 1Cell Protector
The R5400N Series are high input voltage CMOS-based protection ICs for over-charge/discharge of rechargeable one-cell Lithium-ion
(Li-ion) / Lithium polymer excess load current, further include a short circuit protector for preventing large external short circuit
current and excess discharge-current.
Each of these ICs is composed of three voltage detectors, reference units, a delay circuit, a short circuit detector, an oscillator, a
counter, and a logic circuit. SOT-23-5 package is available.
FEATURES
•
•
•
•
Supply Voltage (VDD
Charger Negative Input Voltage (V-) ··· -35V (Absolute Maximum Rating) discharge-current Detector Threshold Accuracy····· 15mV
Operating Input Voltage Range (VDD ····· 1.5V to 5.0V (VDET Output Delay Time (tVDET3)···· Typ. 12ms
)
···························· 12V (Absolute Maximum Rating)
•
Excess
Detector Threshold Range ···· 0.05V to 0.20V (0.005V steps)
)
3)
Supply Current (IDD
)
····························· Typ. 3.5μA (A Version)
•
Short Protection Voltage (Vshort)······················· Typ. 1.3V
Typ. 4.0μA (B Version)
Output Delay Time (tshort)······ Typ. 300μs
• 0V-battery charge............................................. Selectable (A Version)
•
•
Standby Current (I
s
)
····························· Max. 0.1μA
Over-charge Detector Threshold Range······· 4.0V to 4.5V (0.005V steps) • Package ··························································· SOT-23-5
(VDET1)
Detector Threshold Accuracy··· 25mV (25°C)
30mV (-5 to 55°C)
)······· Typ. 1.1s or 275ms
Over-discharge Detector Threshold Range······· 2.0V to 3.0V (0.1V steps)
(VDET2) Detector Threshold Accuracy··· 2.5%
Output Delay Time (tVDET )······· Typ. 20ms
Output Delay Time (tVDET
1
•
2
BLOCK DIAGRAM
R5400N
VDD
DC Circuit
Oscillator
Counter
Logic
Circuit
Level
Shift
VD1
VD2
Short
Detector
Delay
Logic
Circuit
VD3
VSS
DOUT
COUT
V-
SELECTION GUIDE
Package
Quantity per Reel
Part No.
SOT-23-5
3,000 pcs
R5400N
.
xxx$∗ -TR-FE
.
.
.
xxx: Serial Number for the R5400N Series designating input three threshold for
over-charge, over-discharge, and excess discharge-current detectors.
: Designation of 0V-battery charge option.
∗
.
(
.A.) 0V-charge available
$:
Designation of Output delay time for over-charge.
(
.B.) 0V-charge unavailable
.
.
(
(
.
C
.
) tVDET1=1.1s
.F
..) tVDET1=275ms
PACKAGE (Top View)
SOT-23-5
5
4
1
2
3
4
5
V-
VDD
VSS
DOUT
COUT
1
2
3
APPLICATIONS
• Li-ion / Li polymer protector of over-charge, over-discharge, excess discharge-current, excess charge-current for battery pack
• High precision protectors for cell-phones and any other gadgets using on board Li-ion / Li polymer battery
Li-ion/polymer 1Cell Protector
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