PT6001单节锂电池保护芯片锂电池保护芯片

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 1 PTBP01_DS_Rev EN 0.1

GENERAL DESCRIPTION

The PTBP01 battery protection IC is designed for protecting single cell lithium-ion/polymer battery from being damaged or overall lifetime degrading due to over-charge, over-discharge, and/or over-current condition. The ultra-small package and minimum required external components make it easy to integrate PTBP01 into the limited space available of any battery pack. The accurate ± 20mV overcharging detection voltage ensures safe and full battery capacity charging. The extremely low power-down current resulted in the device only drains insignificant current from the cell in storage stage.

With auto recovery function, the device is more users friendly to applications that encounters fault conditions in common.

APPLICATIONS

⚫ Lithium-ion rechargeable battery packs

⚫ Lithium-ion Polymer rechargeable battery packs

FEATURES

⚫ High-precision Battery Voltage Detection:

➢ Overcharge Detection Voltage:

VOCP = 3.650 ~ 4.475V, Accuracy: ± 20mV ➢ Overcharge Release Voltage:

ΔVOCR = 0.05 ~ 0.25V

➢ Over-discharge Detection Voltage:

VODP = 2.1 ~ 3.3V, Accuracy: ± 80mV ➢ Over-discharge Release Voltage:

ΔVODR = 0 ~ 0.5V

➢ Discharge Overcurrent Detection Voltage:

VODIP = 0.05 ~ 0.25V, Accuracy: ± 10mV ➢ Charge Overcurrent Detection Voltage:

VOCIP = -0.05 ~ -0.25V, Accuracy: ± 20mV ➢ Load Short-circuiting Detection Voltage:

VODIP = 0.25~0.60V, Accuracy: ± 100mV

⚫ High-withstanding-voltage device is used for charger connection pins: 28V

⚫ 0V battery charging function or 0V battery charge

inhibiting function

⚫ Sleep mode enable or disable

⚫ Low current consumption

➢ Operation mode: 3.5μA (typ.), 6μA (max.)

➢ Power-down mode: 0.5μA (max.)

⚫ Wide operating temperature range

⚫ Auto recovery function

⚫ Small package: SOT23-6

TYPICAL APPLICATIONS

PT6001

R 1 : 330 to 470

C1

Bat.

R 2 : 2.7K

BATT+

BATT-

M1

Li-on

M2

Figure1. PTBP01 Typical Application Circuit

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 2 PTBP01_DS_Rev EN 0.1

ORDER INFORMATION

PACKAGE

TEMPERATURE

RANGE

ORDERING PART

NUMBER

TRANSPORT MEDIA MARKING

SOT23-6 -40℃~85℃ PTBP01E23F-XX Tape and Reel 3000 units 6AXX

Note1: XX is showed for optional parameter as table1.

Part Number

[VOCP] (V)

[VOCR] (V)

[VODP] (V)

[VODR] (V)

[VODIP] (mV)

[VSCP] (mV)

[VOCIP] (mV)

[TOCP] (s)

[TODP] (ms)

[TODIP] (ms)

[TSCP] (μs)

[TOCIP] (ms)

PTBP01E23F-BA

PTBP01E23F-AA −80 8

PTBP01E23F-AB −80 8

PTBP01E23F-AC −80 8

PTBP01E23F-AD −80 8

PTBP01E23F-AE −80 8

PTBP01E23F-AF −80 8

PTBP01E23F-AG −80 8

PTBP01E23F-AH −0 8

PTBP01E23F-AI −80 8

PTBP01E23F-AJ −8

PTBP01E23F-AK −80 8

PTBP01E23F-AL −0 8

PTBP01E23F-AM −8

PTBP01E23F-AN −0 8

PTBP01E23F-AO −0 8

Part Number 0V Battery Charge Function Sleep Mode ODIP Release Condition ODIP Release Voltage

PTBP01E23F-BA Available No Load Removed VODIP

PTBP01E23F-AA Unavailable No Load Removed VODIP

PTBP01E23F-AB Available Yes Load Removed VODIP

PTBP01E23F-AC Available Yes Load Removed VODIP

PTBP01E23F-AD Available Yes Load Removed VODIP

PTBP01E23F-AE Unavailable No Load Removed VODIP

PTBP01E23F-AF Unavailable No Load Removed VODIP

PTBP01E23F-AG Unavailable Yes Load Removed VODIP

PTBP01E23F-AH Available Yes Load Removed VODIP

PTBP01E23F-AI Available Yes Load Removed VODIP

PTBP01E23F-AJ Available Yes Load Removed VODIP

PTBP01E23F-AK Available No Load Removed VODIP

PTBP01E23F-AL Available No Load Removed VODIR

PTBP01E23F-AM Available No Load Removed VODIR

PTBP01E23F-AN Available No Load Removed VODIP

PTBP01E23F-AO Available No Load Removed VODIP

Table.1 Ordering Part Number’s Optional Parameter (待定)

Note2: Please contact our sales office for the products with detection voltage value other than those specified above.

Note3: **** is refer to package information.

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 3 PTBP01_DS_Rev EN 0.1

PIN ASSIGNMENT

PTBP01

1

2

3

6

7

4

VSS

VCC

OD

NC

SOT23-6

CS

OC

Figure2. PTBP01 Pin Configuration of Package

PIN DESCRIPTIONS

PIN NUM

SOT23-6

PIN NAME DESCRIPTIONS

1 OD Output of over-discharge detection

2 CS Pin for charge negative input

3 OC Output of over-charge detection

4 NC No Connection

5 VCC Power supply

6 VSS Ground

ABSOLUTE MAXIMUM RATINGS (NOTE4)

SYMBOL ITEM

Value UNIT Min. Typ. Max.

VCC Input voltage between VCC and GND VGND - 0.3 VGND + 12 V

VCS CS Input voltage VCC - 28 VCC + 0.3 V

VOC OC pin VCS - 0.3 VCC + 0.3 V

VOD OD pin VGND - 0.3 VCC + 0.3 V

PD Power dissipation (SOT23-5) 0.25 W

TOPT Operating temperature -40 85 ℃

TSTG Storage temperature -55 125 ℃

Note4: Exceeding these ratings may damage the device

RECOMMENDED OPERATING RANGE

SYMBOL PARAMETER

VALUE UNIT Min. Typ. Max.

VCC Supply Voltage 2.0 3.7 5.0 V

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 4 PTBP01_DS_Rev EN 0.1

ELECTRICAL CHARACTERISTICS

VCC = 4.2V, Ta = 25°C unless otherwise specified

Symbol Parameter Condition Min. Typ. Max. Unit TC1 TC2

VCC Operating input voltage

Voltage between VCC and GND 1.5 6.0

V

Voltage between VCC and CS 1.5 28

V0CHA 0 V battery starting charger voltage 0 V battery charging function 0 0.7 1.5 V 11 2

V0INH 0 V battery stopping charger voltage 0 V battery charge inhibiting function 0.9 1.2 1.5 V 11 2

IDD Supply current VCC=3.9V, VCS=0V 1.5 4.0 µ A 5 2

ISLP Sleep current VCC=2.0V, VCS=VCC 0.2 0.5 µ A 5 2

VOCP Over-charge threshold Detect rising edge of supply voltage

VOCP

-20mV

VOCP

VOCP

+20mV

V 1 1

VOCR Over-charge release threshold VCS=0V

VOCR

-50mV

VOCR

VOCR

+50mV

V 1 1

TOCP Delay of over charge VCC=3.6V to 5.5V 0.7TOCP TOCP 1.3TOCP s 9 5

TOCR Delay of over charge release VCC=5.5V to 3.6V 2.0 ms 9 5

VODP Over-discharge threshold Detect falling edge of supply voltage

VODP

-80mV

VODP

VODP

+80mV

V 2 2

VODR Over-discharge threshold VCS=0V

VODR -100mV

VODR

VODR +100mV

V 2 2

TODP Delay of over-discharge VCC=3.6V to 2.0V 0.7TODP TODP 1.3TODP ms 9 5

TODR Delay of over-discharge release VCC=2.0V to 3.6V 2.0 ms 9 5

TSLP Delay of sleep mode enter VCC=2.0V, VCS= VCC 16 s 9 5

VODIP Excess current threshold Detect rising edge of CS pin voltage

VODIP

-10mV

VODIP

VODIP

+10mV

V 3 2

VODIR Excess current release threshold

VCC

-1.2V

VCC

-0.8V

VCC

-0.5V

V 3 2

TODIP Delay of excess current VCC=3.6V 0.7TODIP TODIP 1.3TODIP ms 10 5

TODIR Delay of excess current release VCC=3.6V 2.0 ms 10 5

VOCIP Excess charging current threshold Detect falling edge of CS pin voltage

VODIP

-20mV

VODIP

VODIP

+20mV

V 4 2

TOCIP Delay of excess charging current VCC=3.6V 0.7TOCIP TOCIP 1.3TOCIP ms 10 5

TOCIR

Delay of excess charging current release

VCC=3.6V 2.0 ms 10 5

VSCP Short current threshold VCC=3.6V

VSCP -100mV

VSCP

VSCP +100mV

V 3 2

TSCP Delay of short current VCC=3.6V 0.7TSP TSCP 1.3TSCP µ s 10 5

TSCR Delay of short current release VCC=3.6V 2.0 ms 10 5

VOL1 Low voltage of OC VCC= VOCP +V

VOH1 High voltage of OC IOL=50µ A, VCC=3.9V 3.4 3.7 V

VOL2 Low voltage of OD IOL=-50µ A, VCC=2V 0.2 0.5 V

VOH2 High voltage of OD IOL=50µ A, VCC=3.9V 3.4 3.7 V

ROCH OC pin resistance “H” VCC=3.9V, VCS=0V, VOC=3.4V 5 10 20 kΩ 7 4

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 5 PTBP01_DS_Rev EN 0.1

Note1. VOCR = VOCP + ΔVOCR

Note2. VODR = VODP + ΔVODR

ROCL OC pin resistance “L” VCC=4.6V, VCS=0V, VOC=0.5V 5 10 20 kΩ 7 4

RODH OD pin resistance “H” VCC=3.9V, VCS=0V, VOD=3.4V 5 10 20 kΩ 8 4

RODL OD pin resistance “L” VCC=VCS=2.0V, VOD=0.5V 5 10 20 kΩ 8 4

RCSC

Resistance between CS pin and VCC pin

VCC=2.0V, VCS=0V kΩ 6 3

RCSG

Resistance between CS pin and GND pin

VCC=3.6V, VCS=1.0V 10 20 30 kΩ 6 3

VCHGIN Charger detection voltage

VCC=2.0V, fall CS voltage until chip was waken up

0.7 V

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 6 PTBP01_DS_Rev EN 0.1

ELECTRICAL CHARACTERISTICS

VCC = 4.2V, Ta = -20 to 70°C unless otherwise specified (S8261: -40 to 85°C)

Symbol Parameter Condition Min. Typ. Max. Unit TC1 TC2

VCC Operating input voltage

Voltage between VCC and GND 1.5 6.0

V

Voltage between VCC and CS 1.5 28

V0CHA 0 V battery starting charger voltage 0 V battery charging function 0 0.7 1.7 V 11 2

V0INH 0 V battery stopping charger voltage 0 V battery charge inhibiting function 0.7 1.2 1.7 V 11 2

IDD Supply current VCC=3.9V, VCS=0V 1.5 5.0 µ A 5 2

ISLP Sleep current VCC=2.0V, VCS=VCC 0.2 1.0 µ A 5 2

VOCP Over-charge threshold Detect rising edge of supply voltage

VOCP

-50mV

VOCP

VOCP

+50mV

V 1 1

VOCR Over-charge release threshold VCS=0V

VOCR

-80mV

VOCR

VOCR

+80mV

V 1 1

TOCP Delay of over charge VCC=3.6V to 5.5V 0.5TOCP TOCP 2.5TOCP s 9 5

VODP Over-discharge threshold Detect falling edge of supply voltage

VODP -100mV

VODP

VODP +100mV

V 2 2

VODR Over-discharge threshold VCS=0V

VODR -120mV

VODR

VODR +120mV

V 2 2

TODP Delay of over-discharge VCC=3.6V to 2.0V 0.5TODP TODP 2.5TODP ms 9 5

VODIP Excess current threshold Detect rising edge of CS pin voltage

VODIP

-10mV

VODIP

VODIP

+10mV

V 3 2

VODIR Excess current release threshold

VCC

-1.4V

VCC

-0.8V

VCC

-0.3V

V 3 2

TODIP Delay of excess current VCC=3.6V 0.5TODIP TODIP 2.5TODIP ms 10 5

VOCIP Excess charging current threshold Detect falling edge of CS pin voltage

VODIP

-20mV

VODIP

VODIP

+20mV

V 4 2

TOCIP Delay of excess charging current VCC=3.6V 0.5TOCIP TOCIP 2.5TOCIP ms 10 5

VSCP Short current threshold VCC=3.6V

VSCP -100mV

VSCP

VSCP +100mV

V 3 2

TSCP Delay of short current VCC=3.6V 0.5TSP TSCP 2.5TSCP µ s 10 5

ROCH OC pin resistance “H” VCC=3.9V, VCS=0V, VOC=3.4V 2.5 10 30 kΩ 7 4

ROCL OC pin resistance “L” VCC=4.6V, VCS=0V, VOC=0.5V 2.5 10 30 kΩ 7 4

RODH OD pin resistance “H” VCC=3.9V, VCS=0V, VOD=3.4V 2.5 10 30 kΩ 8 4

RODL OD pin resistance “L” VCC=VCS=2.0V, VOD=0.5V 2.5 10 30 kΩ 8 4

RCSC

Resistance between CS pin and VCC pin

VCC=2.0V, VCS=0V kΩ 6 3

RCSG

Resistance between CS pin and GND pin

VCC=3.6V, VCS=1.0V 7.5 20 40 kΩ 6 3

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 7 PTBP01_DS_Rev EN 0.1

SIMPLIFIED BLOCK DIAGRAM

Level Shift

Delay

Short

Protection

OD CS

VCC OC

GND

Figure3. PTBP01 Simplified Block Diagram

Test Description

Caution: Unless otherwise specified, the output voltage levels “H” and “L” at OC pin (VOC) and OD pin (VOD) are judged by the

threshold voltage (1.0 V) of the N-channel MOSFET. Judge the OC pin level with respect to VCS and the OD pin level with respect to GND.

1) Overcharge Detection Voltage, Overcharge Release Voltage

(Test Condition 1, Test Circuit 1)

Overcharge detection voltage (VOCP) is defined as the voltage between the VCC pin and GND pin at which VOC goes from “H” to “L” when the voltage V1 is gradually increased from the starting condition of V1 = 3.6 V. Overcharge release voltage (VOCR) is defined as the voltage between the VCC pin and GND pin at which VOC goes from “L” to “H” when the voltage V1 is then gradually decreased. Overcharge hysteresis voltage (VHC) is defined as the difference between overcharge detection voltage (VOCP) and overcharge release voltage (VOCR).

2) Over-discharge Detection Voltage, Over-discharge Release Voltage

(Test Condition 2, Test Circuit 2)

Over-discharge detection voltage (VODP) is defined as the voltage between the VCC pin and GND pin at which VOD goes from “H” to “L” when the voltage V1 is gradually decreased from the starting condition of V1 = 3.6 V, V2 = 0 V. Over-discharge release voltage (VODR) is defined as the voltage between the VCC pin and GND pin at which VOD goes from “L” to “H” when the voltage V1 is then gradually increased. Over-discharge hysteresis voltage (VHD) is defined as the difference between over-discharge release voltage (VODP) and over-discharge detection voltage (VODR).

PT6001

Single Cell Li-ion/Polymer Battery Protection IC

CR POWTECH (SHANGHAI) CO., LTD. WWW.CRPOWTECH.COM Page 8 PTBP01_DS_Rev EN 0.1

3) Discharge Overcurrent Detection Voltage

(Test Condition 3, Test Circuit 2)

Discharge overcurrent detection voltage (VODIP) is defined as the voltage between the CS pin and GND pin whose delay time for changing VOD from “H” to “L” lies between the minimum and the maximum value of discharge overcurrent delay time when the voltage V2 is increased rapidly (within 10 μs) from the starting condition of V1 = 3.6 V, V2 = 0 V.