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NXP Semiconductors Electronic Components Datasheet

MC33772B Datasheet

Battery cell controller

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MC33772B
Battery cell controller IC
Rev. 6.0 — 2 April 2020
Short data sheet: technical data
1 General description
The 33772 is a SMARTMOS lithium-ion battery cell controller IC designed for automotive
applications, such as hybrid electric (HEV) and electric vehicles (EV) along with industrial
applications, such as energy storage systems (ESS) and uninterruptible power supply
(UPS) systems.
The device performs ADC conversions of the differential cell voltages and current, as well
as battery coulomb counting and battery temperature measurements. The information is
digitally transmitted through the Serial Peripheral Interface (SPI) or Transformer Isolation
(TPL) to a microcontroller for processing.
2 Features
5.0 V ≤ VPWR ≤ 30 V operation, 40 V transient
3 to 6 cells management
0.8 mV total cell voltage measurement error
Isolated 2.0 Mbps differential communication or 4.0 Mbps SPI
Addressable on initialization
Synchronized cell voltage/current measurement with coulomb count
Total stack voltage measurement
Seven GPIO/temperature sensor inputs
5.0 V reference supply output with 5 mA capability
Automatic over/undervoltage and temperature detection routable to fault pin
Integrated sleep mode over/undervoltage and temperature monitoring
Onboard 300 mA passive cell balancing with diagnostics
Hot plug capable
Detection of internal and external faults, as open lines, shorts, and leakages
Designed to support ISO 26262 up to ASIL D safety system
Fully compatible with the MC33771 for a maximum of 14 cells
Qualified in compliance with AEC-Q100


NXP Semiconductors Electronic Components Datasheet

MC33772B Datasheet

Battery cell controller

No Preview Available !

NXP Semiconductors
MC33772B
Battery cell controller IC
3 Simplified application diagram
6 cell
voltage
measure
current
measure
VPWR1
VPWR2
CT6
CB6
+
CB6:5_C
CT5
CTn
CBn
CT1
CB2:1_C
+
CB1
CTREF
battery
reference
GNDSUB
GNDFLG
ISENSE+
ISENSE-
MC33772
RDTX_OUT+
RDTX_OUT-
VCOM
VCOM
CGND
VPRE
VANA
AGND
DGND
battery
reference
battery
reference
SDA
SCL
SPI_COM_EN
VCP
GNDCP
FAULT
EEPROM
(OPTIONAL)
VPRE
battery
reference
GPIOy
RESET
GPIOx
CSB
CSB
SO
MISO
SI/RDTX_IN+
MOSI
SCLK/RDTX_IN-
SCLK
MCU
GPIO0
GPIO1
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6
VCOM
Figure 1. Simplified application diagram, SPI use case
battery
reference
aaa-029758
MC33772B_SDS
Short data sheet: technical data
All information provided in this document is subject to legal disclaimers.
Rev. 6.0 — 2 April 2020
© NXP B.V. 2020. All rights reserved.
2 / 27


Part Number MC33772B
Description Battery cell controller
Maker NXP
Total Page 3 Pages
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