ISL9216IRZ Intersil, ISL9216IRZ Datasheet

IC MULTI-CELL LI-ION PROT 32-QFN

ISL9216IRZ

Manufacturer Part Number
ISL9216IRZ
Description
IC MULTI-CELL LI-ION PROT 32-QFN
Manufacturer
Intersil
Datasheet

Specifications of ISL9216IRZ

Function
Battery Monitor
Battery Type
Lithium-Ion (Li-Ion)
Voltage - Supply
9.2 V ~ 31 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ISL9216IRZ
Manufacturer:
BROADCOM
Quantity:
1 000
Part Number:
ISL9216IRZ
Manufacturer:
Intersil
Quantity:
802
Part Number:
ISL9216IRZ
Manufacturer:
INTERSIL
Quantity:
20 000
8 to 12 Cell Li-Ion Battery Overcurrent
Protection and Analog Front End Chip Set
The ISL9216 and ISL9217 chipset provides overcurrent
protection and voltage monitoring for multi-cell li-ion battery
packs consisting of 8 to 12 cells. When used together, these
devices provide integrated overcurrent protection circuitry,
short circuit protection, an internal voltage regulator, internal
cell balancing switches, cell voltage level shifters, and drive
circuitry for external FET devices that control pack charge
and discharge. Level shifting of the analog output voltage
from the upper cells and communication between the chips
is handled automatically.
Overcurrent and short circuit thresholds reside in internal
RAM registers and are selected independently via software
using an I
can be individually varied using internal registers.
Using an internal analog multiplexer, the device provides
monitoring of cell voltage by a separate microcontroller with
A/D converter. Software on this microcontroller implements
all battery control functionality, except for overcurrent and
short circuit shutdown.
Applications
• Power Tools
• Battery Backup Systems
• E-bikes
• Portable Test Equipment
• Medical Systems
• Hybrid Vehicle
• Military Electronics
Ordering Information
ISL9216IRZ*
ISL9217IRZ*
*Add “-T” suffix for tape and reel. Please refer to TB347 for details
on reel specifications.
NOTE: These Intersil Pb-free plastic packaged products employ
special Pb-free material sets; molding compounds/die attach
materials and 100% matte tin plate PLUS ANNEAL - e3 termination
finish, which is RoHS compliant and compatible with both SnPb and
Pb-free soldering operations. Intersil Pb-free products are MSL
classified at Pb-free peak reflow temperatures that meet or exceed
the Pb-free requirements of IPC/JEDEC J STD-020.
PART NUMBER
(Note)
2
C serial interface. Detection and time-out delays
ISL9216 IRZ
921 7IRZ
MARKING
PART
®
1
32 Ld 5x5 QFN
24 Ld 4x4 QFN
Data Sheet
PACKAGE
(Pb-Free)
L32.5x5B
L24.4x4D
DWG. #
PKG.
1-888-INTERSIL or 1-888-468-3774
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
Features
• Software selectable overcurrent protection levels and
• Automatic FET turn-off and cell balance disable on
• Automatic over-ride of cell balance on reaching internal
• Fast short circuit pack shutdown
• Can use current sense resistor, FET r
• Four battery backed software controlled flags
• Allows three different FET controls:
• Chips cascade for packs of 8 to 12 cells
• Integrated charge/discharge FET drive circuitry with
• 10% accurate 3.3V voltage regulator (35mA out with
• Cell voltage monitor accurate to within 25mV
• Monitored cell voltage output stable in 100µs
• Internal cell balancing FETs handle up to 200mA of
• Simple I
• Sleep operation with programmable negative edge or
• <10µA sleep mode
• Pb-free (RoHS compliant)
variable protect detection/release times
- 4 Discharge overcurrent thresholds
- 4 Short circuit thresholds
- 4 Charge overcurrent thresholds
- 8 Overcurrent delay times (Charge)
- 8 Overcurrent delay times (Discharge)
- 2 Short circuit delay times (Discharge)
reaching external (battery) or internal (IC) temperature
limit
(IC) temperature limit
FET for overcurrent detection
- Back-to-back N-Channel FETs for charge and discharge
- Single N-Channel FET for discharge control
- N-Channel FET for discharge, with separate, optional
200µA (typ) turn on current and 150mA (typ) discharge
FET turn off current
external NPN transistor having current gain of 70)
balancing current for each cell (with the number of cells
being balanced limited by the maximum power dissipation
of 400mW)
positive edge wake-up
November 2, 2007
control
(smaller) back-to-back FET for charge
All other trademarks mentioned are the property of their respective owners.
2
|
C host interface
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2007. All Rights Reserved
ISL9216, ISL9217
DS(ON)
FN6488.1
, or Sense

Related parts for ISL9216IRZ

ISL9216IRZ Summary of contents

Page 1

... Military Electronics Ordering Information PART NUMBER PART PACKAGE (Note) MARKING (Pb-Free) ISL9216IRZ* ISL9216 IRZ 32 Ld 5x5 QFN ISL9217IRZ* 921 7IRZ 24 Ld 4x4 QFN *Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets ...

Page 2

Pinouts ISL9217 (UPPER) (24 LD 4X4 QFN) TOP VIEW CB7 1 VCELL6 2 CB6 3 VCELL5 4 CB5 5 VCELL4 ISL9216, ISL9217 19 RGO 18 HVI2C SDAI 17 ...

Page 3

Functional Diagram VC7/VCC CB7 VCELL6 CB6 VCELL5 LEVEL CB5 SHIFTERS/ VCELL4 CELL BALANCE CB4 CIRCUITS VCELL3 CB3 VCELL2 CB2 VCELL1 CB1 BACKUP SUPPLY VSS WKUPR VC7/VCC VCELL6 VCELL5 LEVEL CB5 SHIFTERS/ VCELL4 CELL BALANCE CB4 CIRCUITS VCELL3 CB3 VCELL2 CB2 ...

Page 4

Pin Descriptions SYMBOL VC7/VCC Battery Cell 7 Voltage Input/VCC Supply. This pin is used to monitor the voltage of this battery cell externally at pin AO. This pin also provides the operating voltage for the IC circuitry. VCELLN Battery Cell ...

Page 5

Pin Descriptions (Continued) SYMBOL WKUPR Wake-up Upper Device Signal (ISL9216 only). This output wakes up the ISL9217 (upper device) when the output is turned on by the microcontroller. Once the upper device is awake, this output can be turned off. ...

Page 6

... Thermal Resistance (Typical, Notes 1, 2) θ 36. QFN . . . . . . . . . . . . . . . . . . . . . . 24 Ld QFN . . . . . . . . . . . . . . . . . . . . . . Continuous Package Power Dissipation . . . . . . . . . . . . . . . .400mW Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . -55 to +125° 0.5V Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below SS RGO http://www.intersil.com/pbfree/Pb-FreeReflow.asp - 22. 0. <27V Operating Conditions - 0. Operating Temperature . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C Operating Voltage - 0 ...

Page 7

Operating Specifications All Specifications Apply to Both the ISL9216 and ISL9217 Separately Over the Recommended Operating Conditions, Unless Otherwise Specified. (Continued) DESCRIPTION Overcurrent Detection Threshold (Charge) Voltage Relative to DSREF (Default in Boldface) Short Current Detection Threshold (Discharge) Voltage Relative ...

Page 8

Operating Specifications All Specifications Apply to Both the ISL9216 and ISL9217 Separately Over the Recommended Operating Conditions, Unless Otherwise Specified. (Continued) DESCRIPTION OVER-TEMPERATURE PROTECTION SPECIFICATIONS Internal Temperature Shutdown Threshold Internal Temperature Hysteresis Internal Over-Temperature Turn-on Delay Time External Temperature Output ...

Page 9

Operating Specifications All Specifications Apply to Both the ISL9216 and ISL9217 Separately Over the Recommended Operating Conditions, Unless Otherwise Specified. (Continued) DESCRIPTION WAKE-UP/SLEEP SPECIFICATIONS Device WKUP Pin Voltage Threshold (WKUP pin active HIGH rising edge) Device WKUP Pin Hysteresis (WKUP ...

Page 10

Operating Specifications All Specifications Apply to Both the ISL9216 and ISL9217 Separately Over the Recommended Operating Conditions, Unless Otherwise Specified. (Continued) DESCRIPTION Stop Condition Hold Time Data Output Hold Time SDA and SCL Rise Time SDA and SCL Fall Time ...

Page 11

Wake-up Timing (WKPOL = 0) V WKUP2 WKUP PIN t WKUP WKUP BIT Wake-up Timing (WKPOL = 1) <t V WKUP1 WKUP PIN t WKUP WKUP BIT Change in Voltage Source, FET Control SCL BIT SDA 3 AO DFET (ISL9216 ...

Page 12

Automatic Temperature Scan (ISL9216 only) AUTO TEMP CONTROL (INTERNAL ACTIVATION) MONITOR TIME = 5ms TEMP3V PIN EXTERNAL TEMPERATURE OVER-TEMPERATURE TMP3V/13 DELAY TIME = 1ms XOT BIT Discharge Overcurrent/Short Circuit Monitor (ISL9216 only OCD V DSENSE t SCD ...

Page 13

Charge Overcurrent Monitor (ISL9216 only) V CSENSE V OCC ‘0’ COC BIT TEMP3V OUTPUT 12V CFET OUTPUT Serial Interface Timing Diagrams Bus Timing SCL t SU:STA t HD:STA SDA INPUT SDA OUTPUT This timing shows the communication with the ISL9216. ...

Page 14

Registers ADDR REGISTER READ/WRITE 00H Configuration Read only Status 01H Operating Status Read only (Note 9) 02H Cell Balance Read/Write 03H Analog Out Read/Write 04H FET Control Read/Write 05H Discharge Set Read/Write (Write only if DISSETEN bit set) 06H Charge ...

Page 15

Status Registers TABLE 2. CONFIGURATION STATUS REGISTER (ADDR: 00H) BIT FUNCTION 7 CU Indicates the device is an ISL9217. This bit is set in hardware and cannot be changed. Cascade Indicates the device is an ISL9216. This ...

Page 16

Control Registers TABLE 4. CELL BALANCE CONTROL REGISTER (ADDR: 02H) CONTROL REGISTER BITS BIT 6 BIT 7 CB6ON BIT 5 CB7ON WKUPR CB5ON ...

Page 17

TABLE 5. ANALOG OUT CONTROL REGISTER (ADDR: 03H) BITS FUNCTION 7 UFLG1 General purpose flag usable by microcontroller software. This bit is battery backed up, even when RGO turns off. User Flag 1 6 UFLG0 General purpose flag usable by ...

Page 18

Configuration Registers The device is configured for specific application requirements using the Configuration Registers. The configuration register consists of SRAM memory. This memory is powered by the RGO output sleep condition, an internal switch powers the contents of ...

Page 19

TABLE 8. CHARGE/TIME SCALE CONFIGURATION REGISTER (ADDR: 06H) SETTING Bit 7 DENOCC Turn off automatic OCC control (ISL9216 only) Bit 6 Bit 5 OCCV1 OCCV0 Bit 4 SCLONG Short circuit long delay ...

Page 20

BIT FUNCTION 7 FSETEN Enable discharge set writes 6 CHSETEN Enable charge set writes (ISL9216 only) 5 DISSETEN Enable discharge set writes (ISL9216 only) 4 UFLG3 User Flag 3 3 UFLG2 User Flag 3 2 RESERVED 1 RESERVED 0 ...

Page 21

Device Description Design Theory Instructed by the microcontroller, the ISL9216 and ISL9217 chip set performs cell voltage monitoring and cell balancing operations. The ISL9216 has automatic overcurrent and short circuit monitoring, and shut-down with built-in selectable time delays. The ISL9216 ...

Page 22

OVERCURRENT SAFETY FUNCTIONS The ISL9216 continually monitors the discharge current by monitoring the voltage at the CSENSE and DSENSE pins. If that voltage exceeds a selected value for a time exceeding a selected delay, then the device enters an overcurrent ...

Page 23

The load monitor circuit can be turned on or off by the microcontroller normally turned off to minimize current consumption. It must be activated by the external microcontroller for it to operate. The circuit works by internally connecting ...

Page 24

In the event of an automatic over-temperature condition, cell balancing is prevented and FETs are held off until the temperature drops back below the temperature recovery threshold. During this temperature shutdown period, the microcontroller can monitor the internal temperature through ...

Page 25

DEFINITION OF CELL BALANCING Cell balancing is defined as the application of differential currents to individual cells (or combinations of cells series string. Normally, of course, cells in a series string receive identical currents. A battery pack requires ...

Page 26

User Flags The ISL9216 and ISL9217 each contain four flags in the register area that the microcontroller can use for general purpose indicators. These bits are designated UFLG3, UFLG2, UFLG1, and UFLG0. The microcontroller can set or reset these bits ...

Page 27

SLAVE REGISTER R BYTE ADDRESS T SDA BUS ISL9216 [SLAVE BYTE = 50H] ISL9217 [SLAVE BYTE = 52H] FIGURE 12. ...

Page 28

When data is clocked into the ISL9216 through the I is immediately transferred to the serial cascade port, so both the ISL9216 and ISL9217 see the slave byte at the same time. After the 8th slave bit, the device that ...

Page 29

Applications Circuits The following application circuits are ideas to consider when developing a battery pack implementation. There are many more ways that the pack can be designed. VC7/VCC CB7 VCELL6 CB6 VCELL5 CB5 VCELL4 CB4 VCELL3 CB3 VCELL2 CB2 4.7µF ...

Page 30

ISL9217 VC7/VCC CB7 VCELL6 SCL CB6 SDAI VCELL5 SDAO CB5 WKUP VCELL4 RGC CB4 VCELL3 RGO CB3 VCELL2 CB2 4.7µF VCELL1 CB1 VSS2 ISL9216 SDAIHV VC7/VCC HVI2C SDAOHV VCELL6 SCLHVL SCL WKUPR SDA VCELL5 WKUP CB5 RGC ...

Page 31

ISL9217 VC7/VCC CB7 VCELL6 CB6 VCELL5 CB5 VCELL4 CB4 VCELL3 CB3 VCELL2 CB2 4.7µF VCELL1 CB1 VSS2 ISL9216 SDAIHV VC7/VCC SDAOHV VCELL6 WKUPR VCELL5 CB5 VCELL4 CB4 TEMP3V VCELL3 CB3 VCELL2 CB2 4.7µF VCELL1 CB1 V SS ...

Page 32

Package Outline Drawing L24.4x4D 24 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 2, 10/06 4.00 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 32 ISL9216, ...

Page 33

... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...

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