NCP800SN1T1 [ETC]

Analog IC ; 模拟IC\n


型号：	NCP800SN1T1
厂家：	ETC
描述：	Analog IC 模拟IC\n 模拟IC 光电二极管
文件：	总4页 (文件大小：53K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

NCP800

Product Preview

Lithium Battery Protection

Circuit for One Cell

Battery Packs

The NCP800 resides in a lithium battery pack where the battery cell

continuously powers it. In order to maintain cell operation within

specified limits, this protection 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 NCP800 open circuits the

pack by turning off one of these MOSFET switches, which

disconnects the current path.

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MARKING

DIAGRAM

TSOP–6

SN SUFFIX

CASE 318G

BAEyw

y = Year

w = Week

• Internally Trimmed Precision Charge and Discharge Voltage Limits

• Overvoltage Threshold Accuracy of ± 50 mV

• Discharge Current Limit Detection

PIN CONNECTIONS

• Automatic Reset from Discharge Current Faults

• Low Current Standby State when Cells are Discharged

• Available in a Low Profile Surface Mount Package

P–

Gnd

cell

Typical One Cell Smart Battery Pack

(Top View)

ORDERING INFORMATION

Device

Package

Shipping

NCP800SN1T1

TSOP–6

3000 Units/Rail

NCP800

This document contains information on a product under development. ON Semiconductor

reserves the right to change or discontinue this product without notice.

Semiconductor Components Industries, LLC, 2000

Publication Order Number:

December, 2000 – Rev. 2

NCP800/D

NCP800

Vcell

VD1 VD2 VD3

Standby/Reset

Level

Shift

VD1

VD2

Short

Circuit

Detector

Delay

VD3

Rshort

Gnd

P–

Figure 1. Detailed Block Diagram

PIN FUNCTION DESCRIPTION

Description

Pin Symbol

P–

This output connects to the gate of the discharge MOSFET allowing it to enable or disable battery pack.

This pin monitors cell discharge current. The excess current detector sets when the combined voltage drop of the

charge MOSFET and the discharge MOSFET exceeds the discharge current limit threshold voltage, V(DET3). The

short circuit detector activates when V(P–) is pulled within 0.8 V of the Vcell voltage. The Co driver is level shifted to

the voltage at this pin.

This output connects to the gate of the charge MOSFET switch Q1 allowing it to enable or disable battery pack

charging.

This pin connects to the external capacitor for setting the output delay of the overvoltage detector (VD1).

cell

This input connects to the positive terminal of the cell for voltage monitoring and provides operating bias for the

integrated circuit.

Gnd

This is the ground pin of the IC.

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NCP800

MAXIMUM RATINGS

Ratings

Symbol

Value

Unit

Supply Voltage (Pin 5 to Pin 6)

Input Voltage

–0.3 to 12

Charge Gate Drive Common/Current Limit (Pin 5 to Pin 2)

Overvoltage Delay Capacitor (Pin 4 to Pin 6)

V(pin5) + 0.3 to V(pin 5) – 8

0.3 to 12

P–

Output Voltage

CO Pin Voltage (Pin 3 to Pin 2)

DO Pin Voltage (Pin 1 to Pin 6)

V(pin5) + 0.3 to V(pin 5) – 8

–0.3 to 12

Thermal Resistance, Junction–to–Air

SN Suffix, TSOP–6 Plastic Package, Case 318G

°C/W

–

Operating Junction Temperature

–40 to 85

–55 to 125

°C

Storage Temperature

stg

NOTES: ESD data available upon request.

ELECTRICAL CHARACTERISTICS (T = 25°C, unless otherwise noted.)

Characteristic

Symbol

Min

Typ

Max

Unit

VOLTAGE SENSING

Overvoltage Threshold, V Increasing

4.30

150

4.35

–

4.40

250

DET1

Overvoltage Hysteresis V Decreasing

HYS1

Overvoltage Delay Time

(DET1)

C = 510 pF

–

105

–

C = 0.01 µF

C = 0.047 µF

Undervoltage Threshold, V Decreasing

2.437

7.0

–

2.563

DET2

Undervoltage Delay Time

(DET2)

CURRENT SENSING

Excess Current Threshold (Detect rising edge of P– pin voltage)

170

–

230

DET3

SHORT

(DET1)

Short Protection Voltage (V = 3.0 V)

– 0.5

Current Limit Delay Time (V = 3.0 V)

9.0

–

µs

(SHORT)

Reset Resistance

–

150

SHORT

OUTPUTS

Charge Gate Drive Output Low (Pin 3 to Pin 2)

(V = 4.4 V, Io = 50 µA)

–

0.5

–

ol1

Charge Gate Drive Output High (Pin 5 to Pin 3)

(V = 3.9 V, Io = –50 µA)

oh1

3.4

–

Discharge Gate Drive Output Low (Pin 1 to Pin 6)

(V = 2.4 V, Io = 50 µA)

ol2

0.5

–

Discharge Gate Drive Output High (Pin 5 to Pin 1)

oh2

3.4

(V = 3.9 V, Io = –50 µA)

TOTAL DEVICE

Supply Current

cell

Operating (V = 3.9 V, VP– = 0 V)

3.0

0.3

–

6.0

0.6

µs

Standby (V = 2.0 V)

Operating Voltage

1.5

–

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NCP800

PACKAGE DIMENSIONS

(TSOP–6)

SN SUFFIX

CASE 318G–02

ISSUE G

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. MAXIMUM LEAD THICKNESS INCLUDES LEAD

FINISH THICKNESS. MINIMUM LEAD THICKNESS

IS THE MINIMUM THICKNESS OF BASE

MATERIAL.

MILLIMETERS

DIM MIN MAX

INCHES

MIN MAX

2.90

1.30

0.90

0.25

0.85

0.013

0.10

0.20

1.25

3.10 0.1142 0.1220

1.70 0.0512 0.0669

1.10 0.0354 0.0433

0.50 0.0098 0.0197

1.05 0.0335 0.0413

0.100 0.0005 0.0040

0.26 0.0040 0.0102

0.60 0.0079 0.0236

1.55 0.0493 0.0610

0.05 (0.002)

3.00 0.0985 0.1181

2.50

ON Semiconductor and

are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes

without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular

purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,

including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be

validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.

SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications

intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or

death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold

SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable

attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim

alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.

PUBLICATION ORDERING INFORMATION

NORTH AMERICA Literature Fulfillment:

CENTRAL/SOUTH AMERICA:

Literature Distribution Center for ON Semiconductor

P.O. Box 5163, Denver, Colorado 80217 USA

Spanish Phone: 303–308–7143 (Mon–Fri 8:00am to 5:00pm MST)

Email: ONlit–spanish@hibbertco.com

Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada

Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada

Email: ONlit@hibbertco.com

Toll–Free from Mexico: Dial 01–800–288–2872 for Access –

then Dial 866–297–9322

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Phone: 303–675–2121 (Tue–Fri 9:00am to 1:00pm, Hong Kong Time)

Toll Free from Hong Kong & Singapore:

Fax Response Line: 303–675–2167 or 800–344–3810 Toll Free USA/Canada

N. American Technical Support: 800–282–9855 Toll Free USA/Canada

001–800–4422–3781

EUROPE: LDC for ON Semiconductor – European Support

German Phone: (+1) 303–308–7140 (Mon–Fri 2:30pm to 7:00pm CET)

Email: ONlit–german@hibbertco.com

French Phone: (+1) 303–308–7141 (Mon–Fri 2:00pm to 7:00pm CET)

Email: ONlit–french@hibbertco.com

Email: ONlit–asia@hibbertco.com

JAPAN: ON Semiconductor, Japan Customer Focus Center

4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031

Phone: 81–3–5740–2700

Email: r14525@onsemi.com

English Phone: (+1) 303–308–7142 (Mon–Fri 12:00pm to 5:00pm GMT)

Email: ONlit@hibbertco.com

ON Semiconductor Website: http://onsemi.com

EUROPEAN TOLL–FREE ACCESS*: 00–800–4422–3781

For additional information, please contact your local

Sales Representative.

*Available from Germany, France, Italy, UK, Ireland

NCP800/D

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