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Details, datasheet, quote on part number:NCP802SN1T1
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| Part: | NCP802SN1T1 |
| Category: | Power Management => Battery Management => Battery Protection |
| Description: | Highly Integrated Lithium Battery Protection Circuit, Package: SON-6, Pins=6 |
| Company: | ON Semiconductor |
| Datasheet: | Download NCP802SN1T1 datasheet File size : 125 kB |
| Request For quote: | Find where to buy NCP802SN1T1
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Datasheet text preview:
NCP802 Highly Integrated Lithium Battery Protection Circuit for One Cell Battery Packs
The NCP802 resides in a lithium battery pack where the battery cell continuously powers it. This circuit senses cell voltage, charge current, and discharge current, and correspondingly controls the state of two, N-channel MOSFET switches. These switches reside in series with the negative terminal of the cell and the negative terminal of the battery pack. During a fault condition, the NCP802 open circuits the pack by turning off one of these MOSFET switches, which disconnects the current path. Internal delay circuitry minimizes external component count.
Features http://onsemi.com MARKING DIAGRAMS
6 1
ท Highly Accurate Overvoltage Detector ท
SOT23-6 SUFFIX CASE 1262
KNxx
ท
ท ท ท ท
"25 mV at Room Temperature "30 mV from -5 to 55ฐC Internally Trimmed Fault Detection Thresholds Overvoltage Threshold: 4.35 V Undervoltage Threshold: 2.4 V Discharge Current Threshold: 0.200 V Charge Current Threshold: 0.100 V Internal Output Delays Overvoltage Output Delay: 250 ms Undervoltage Output Delay: 20 ms Discharge Current Output Delay: 12 ms Charge Current Output Delay: 16 ms Absolute Maximum Rating of 28 V for the Charger Input Low Quiescent Current Normal Operating Current: 3.0 mA Standby Current when Cells are Discharged: 0.1 mA Allows Optional Zero Volt Charging Available in a Low Profile Surface Mount Package
6 1
SON-6 SAN SUFFIX CASE 494
KN xx
KN = Specific Device Code xx = Date Code
PIN CONNECTIONS
DO 1 P- 2 CO 3 SOT23-6 (Top View) 6 5 4 Gnd Vcell DS
DO
Vcell Gnd
1 2 3 SON-6 (Top View)
6 5 4
P- CO DS
Vcell Gnd
NCP802
DO CO P-
ORDERING INFORMATION
Device Package SOT23-6 SON-6 SON-6 Shipping 3000 Tape & Reel 3000 Tape & Reel 3000 Tape & Reel
Figure 1. Typical One Cell Lithium Ion Battery Pack
NCP802SN1T1 NCP802SAN1T1 NCP802SAN5T1
ฉ Semiconductor Components Industries, LLC, 2003
1
August, 2003 - Rev. 6
Publication Order Number: NCP802/D
NCP802
5 Vcell 4 DS
Oscillator
Counter
Logic Circuit VD1 VD4 Delay
Level Shift Short Detector
Logic Circuit VD2
VD3
6 Gnd
1 DO
3 CO
2 P-
Figure 2. Detailed Block Diagram PIN FUNCTION DESCRIPTION
Pin # SOT23-6 1 2 3 4 5 6 Pin # SON-6 1 6 5 4 2 3 Symbol DO P- Description
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This output connects to the gate of the discharge MOSFET allowing it to enable or disable battery pack discharging. This is the charger negative input pin. It connects to the excess current detectors and serves as the common node for the CO pin during turn-off. This output connects to the gate of the charge MOSFET switch allowing it to enable or disable battery pack charging. This is the delay time reduction pin. CO DS Vcell Gnd This input connects to the positive terminal of the cell for voltage monitoring and provides operating bias for the integrated circuit. This is the ground pin of the IC.
http://onsemi.com
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NCP802
CONNECT CHARGER CONNECT LOAD CONNECT CHARGER CONNECT LOAD EXCESS DISCONNECT CHARGE CHARGER + CURRENT CONNECT LOAD
VDET1
VCELL
t VDD VDET3 Gnd VDET4 t tDET1 VDD tDET1 tDET4
-P
CO
tREL1 tREL1 tREL4
P-
t
CHARGE CURRENT
CHARGE/ DISCHARGE CURRENT
0
t
DISCHARGE CURRENT
Figure 3. Overvoltage/Excess Charge Current Timing Chart
http://onsemi.com
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