ncp802san6t1g ON Semiconductor, ncp802san6t1g Datasheet

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ncp802san6t1g

Manufacturer Part Number
ncp802san6t1g
Description
Highly Integrated Lithium Battery Protection Circuit For One Cell Battery Packs
Manufacturer
ON Semiconductor
Datasheet
NCP802
Highly Integrated Lithium
Battery Protection Circuit
for One Cell Battery Packs
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
September, 2004 − Rev. 10
The NCP802 resides in a lithium battery pack where the battery cell
Highly Accurate Overvoltage Detector
Fault Detection Thresholds
Internal Output Delays
Absolute Maximum Rating of 28 V for the Charger Input
Low Quiescent Current
Zero Volt Charging
Available in a Low Profile Surface Mount Package
Pb−Free Package is Available*
Semiconductor Components Industries, LLC, 2004
"25 mV at Room Temperature
"30 mV from −5 to 55 C
Overvoltage Threshold:
Undervoltage Threshold:
Discharge Current Threshold:
Charge Current Threshold: 0.1 V
Overvoltage Output Delay:
Undervoltage Output Delay: 20 ms
Discharge Current Output Delay:
Charge Current Output Delay:
Normal Operating Current: 3.0 mA
Standby Current when Cells are Discharged: 0.1 mA
SN1/SAN1 = 4.35 V, SAN5 = 4.275 V, SAN6 = 4.28 V
SN1/SAN1 = 2.4 V, SAN5/6 = 2.3 V
SN1/SAN1/SAN6 = 0.2 V, SAN5 = 0.1 V
SN1/SAN1/SAN6 = 250 ms, SAN5 = 1 ms
SN1/SAN1/SAN6 = 12 ms, SAN5 = 6 ms
SN1/SAN1/SAN6 = 16 ms, SAN5 = 8 ms
1
See detailed ordering and shipping information in the package
dimensions section on page 20 of this data sheet.
*For additional information on our Pb−Free
6
6
strategy and soldering details, please download
the ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
1
V
Gnd
DO
cell
ORDERING INFORMATION
1
XX = Specific Device Code
xx
DO
CO
P−
PIN CONNECTIONS
http://onsemi.com
1
2
3
= Date Code
1
2
3
SN SUFFIX
CASE 1262
SAN SUFFIX
SOT23−6
CASE 494
(Top View)
(Top View)
SOT23−6
SON−6
SON−6
Publication Order Number:
6
5
4
6
5
4
DIAGRAMS
MARKING
Gnd
V
DS
cell
P−
CO
DS
XXxx
XX
NCP802/D
xx

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ncp802san6t1g Summary of contents

Page 1

... View) ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page 20 of this data sheet. *For additional information on our Pb−Free strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. 1 MARKING DIAGRAMS XXxx ...

Page 2

V NCP802 Gnd DO CO Figure 1. Typical One Cell Lithium Ion Battery Pack NCP802 cell P− http://onsemi.com 2 ...

Page 3

V cell 5 VD1 VD2 6 Gnd Pin # Pin # SOT23−6 SON−6 Symbol This output connects to the gate of the discharge MOSFET allowing it to enable or disable battery pack discharging P− This ...

Page 4

CONNECT CHARGER V DET1 VCELL DET3 −P Gnd V DET4 t DET1 P− CHARGE CURRENT CHARGE/ DISCHARGE 0 CURRENT DISCHARGE CURRENT Figure 3. Overvoltage/Excess Charge Current Timing Chart NCP802 CONNECT CONNECT CONNECT LOAD CHARGER ...

Page 5

CONNECT LOAD VCELL V DET2 short V −P DET3 Gnd V DET4 t DET2 V DD Gnd DO CHARGE CURRENT CHARGE/ DISCHARGE 0 CURRENT DISCHARGE CURRENT Figure 4. Undervoltage/Excess Discharge Current Timing Chart NCP802 CONNECT CONNECT CONNECT ...

Page 6

MAXIMUM RATINGS Rating Supply Voltage (Pin 5 to Pin 6) Input Voltage P− Pin Voltage (Pin 5 to Pin 2) DS Pin Voltage (Pin 4 to Pin 6) Output Voltage CO Pin Voltage (Pin 3 to Pin 2) DO Pin ...

Page 7

ELECTRICAL CHARACTERISTICS ( for min/max values T is the operating junction temperature that applies, unless otherwise noted Characteristic VOLTAGE SENSING Cell Charging Cutoff (Pin 5 to Pin 6) Overvoltage Threshold, V Increasing DD (R1 = ...

Page 8

ELECTRICAL CHARACTERISTICS ( for min/max values T is the operating junction temperature that applies, unless otherwise noted Characteristic OUTPUTS Charge Gate Drive Output Low (Pin 3 to Pin 2) (V Charge Gate Drive Output High ...

Page 9

T , AMBIENT TEMPERATURE ( C) A Figure 5. Overvoltage Threshold vs. Temperature −60 −40 − AMBIENT ...

Page 10

T , AMBIENT TEMPERATURE ( C) A Figure 11. Excess Discharge Current Threshold vs. Temperature 1.8 1.6 1.4 1.2 1 0.8 0.6 0.4 0.2 0 −60 −40 −20 0 ...

Page 11

T , AMBIENT TEMPERATURE ( C) A Figure 17. Excess Charge Current Release Time vs. Temperature 700 600 500 400 300 200 100 0 ...

Page 12

T , AMBIENT TEMPERATURE ( C) A Figure 23. CO NCH Driver Output vs. Temperature 0.4 0.3 0.2 0.1 0 −60 −40 − ...

Page 13

V , OPERATING VOLTAGE (V) DD Figure 29. Overvoltage Delay Time vs. Operating Voltage 1.0 1.5 2.0 V ...

Page 14

V , OPERATING VOLTAGE (V) DD Figure 35. Excess Charge Current Delay Time vs. Operating Voltage 700 600 500 400 300 200 100 0 2 2.5 ...

Page 15

NCP802 2 1.8 1.6 V − GND = 0 DD 1.4 1.2 1 0.8 0.6 0.4 0.2 0 − AMBIENT TEMPERATURE ( C) A Figure 41. Minimum Operating Voltage for 0 V Charging vs. Temperature http://onsemi.com ...

Page 16

A VCELL P− GND B VCELL P− CO GND C VCELL P− GND D VCELL P− DO GND NCP802 VCELL P− GND G VCELL P− GND H VCELL P− GND Figure 42. Test ...

Page 17

I VCELL P− GND J A VCELL DO P− GND M V Overvoltage Detection The overvoltage detector (VD1) monitors the VCELL pin voltage. When the VCELL voltage crosses the overvoltage detector threshold (VDET1) from a low value to ...

Page 18

Undervoltage Detection The undervoltage detector (VD2) monitors the VCELL pin voltage. When the VCELL voltage crosses the undervoltage threshold (VDET2) from a high value to a value lower than VDET2, VD2 senses an undervoltage condition, and an external, discharge control, ...

Page 19

Technical Notes R1 and C1 will stabilize a supply voltage to the NCP802. A recommended R1 value is less than 1 larger value of R1 leads to higher detection voltages. There may also be voltage detector errors from ...

Page 20

... Device NCP802SN1T1 NCP802SAN1T1 NCP802SAN1T1G NCP802SAN5T1 NCP802SAN6T1 NCP802SAN6T1G †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D. NCP802 ORDERING INFORMATION Package Marking Code SOT23−6 KN SON−6 KN SON−6 KN (Pb− ...

Page 21

E 0. PIN 1 IDENTIFIER É É É É É q É É É É É NCP802 PACKAGE DIMENSIONS SOT23−6 SN SUFFIX PLASTIC PACKAGE ...

Page 22

0.10 (0.004) J −T− SEATING PLANE 0.15 (0.010 NCP802 PACKAGE DIMENSIONS SON−6 SAN SUFFIX PLASTIC PACKAGE CASE 494−01 ISSUE 0 NOTES: ...

Page 23

... Fax: 480−829−7709 or 800−344−3867 Toll Free USA/Canada Email: orderlit@onsemi.com NCP802 N. American Technical Support: 800−282−9855 Toll Free USA/Canada Japan: ON Semiconductor, Japan Customer Focus Center 2−9−1 Kamimeguro, Meguro−ku, Tokyo, Japan 153−0051 Phone: 81−3−5773−3850 http://onsemi.com 23 ON Semiconductor Website: http://onsemi ...

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