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The ISL9237 is a buck-boost Narrow Output Voltage DC (NVDC) charger utilizing Intersil’s advanced R3™ Technology to provide high light-load efficiency, fast transient response and seamless DCM/CCM transitions for a variety of mobile and industrial applications.
In Charge mode, the ISL9237 takes input power from a wide range of DC power sources (conventional AC/DC charger adapters, USB PD ports, travel adapters, etc.) and safely charges battery packs with up to 3 cells in a series configuration.
ISL9237 supports On-the-Go (OTG) function for 2- and 3-cell battery applications. When OTG function is enabled, the ISL9237 operates in the reverse Buck mode to provide 5V at the USB port.
As a NVDC topology charger, it also regulates the system output to a narrow DC range for stable system bus voltage. The system power can be provided from the adapter, battery or a combination of both. The ISL9237 can operate with only a battery, only an adapter or both connected. For Intel IMVP8 compliant systems, the ISL9237 includes PSYS functionality, which provides an analog signal representing total platform power. The PSYS output will connect to a wide range of Intersil IMVP8 core regulators to provide an IMVP8 compliant power domain function.
The ISL9237 has serial communication via SMBus/I2C that allows programming of many critical parameters to deliver a customized solution. These programming parameters include, but are not limited to: Adapter current limit, charger current limit, system voltage setting and trickle charging current limit.
ISL88739: Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface. ISL88750: Narrow VDC (NVDC) Battery Charger with SMBus Interface. ISL9237: Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB On-the-Go (OTG). ISL9238: Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB On-the-Go (OTG)
Battery Type = Lithium-Ion
Mounting Type = Surface Mount
Package Type = QFN
Pin Count = 32
Typical Operating Supply Voltage = 3.2 - 23.4 V
Dimensions = 4 x 4 x 0.85mm
Length = 4mm
Height = 0.85mm
Maximum Operating Temperature = +100 °C
Width = 4mm
ISL88739: Hybrid Power Boost (HPB) and Narrow VDC (NVDC) Combo Battery Charger with SMBus Interface. ISL88750: Narrow VDC (NVDC) Battery Charger with SMBus Interface. ISL9237: Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB On-the-Go (OTG). ISL9238: Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB On-the-Go (OTG)
Battery Type = Lithium-Ion
Mounting Type = Surface Mount
Package Type = QFN
Pin Count = 32
Typical Operating Supply Voltage = 3.2 - 23.4 V
Dimensions = 4 x 4 x 0.85mm
Length = 4mm
Height = 0.85mm
Maximum Operating Temperature = +100 °C
Width = 4mm
Delivery on production packaging - Reel. This product is non-returnable.
IC BATT CHG LI-ION 1-3CELL 32QFN
Charger IC Lithium Ion 32-QFN (4x4)
Charger IC Lithium Ion 32-QFN (4x4)
Manufacturer: Intersil
Win Source Part Number: 777483-ISL9237HRZ-T7
Packaging: Reel package
Operating Temperature Range: -10°C ~ 100°C (TA)
Package: 32-VFQFN Exposed Pad
Interface: I2C, USB
Fault Protection: Over Current, Over Temperature, Over Voltage
Battery Chemistry: Lithium-Ion
Number of Cells: 1 ~ 3
Family Name: ISL9237HRZ-T7A
Categories: Integrated Circuits (ICs)
Manufacturer Package: 32-QFN (4x4)
Voltage Supply MAX: 23.4V
ECCN: EAR99
Country of Origin: Taiwan
Estimated EOL Date: 2027
Popularity: Medium
Fake Threat In the Open Market: 51 pct.
Supply and Demand Status: Limited
Quantity per package: 250
IC BATT CHG LI-ION 1-3CELL 32QFN
IC BATT CHG LI-ION 1-3CELL 32QFN
IC BATT CHG LI-ION 1-3CELL 32QFN
IC BATT CHG LI-ION 1-3CELL 32QFN
BUCK-BOOST BATT CHARGER, LI-ION, QFN-32; Battery Type:Li-Ion; Input Voltage:23.4V; Battery Charge Voltage:13.824V; Charge Current Max:-; Battery IC Case Style:QFN; No. of Pins:32Pins; No. of Series Cells:3; Operating Temperature RoHS Compliant: Yes
| Renesas Electronics Corporation | RS Components, Ltd. | Lingto Electronic Limited | Nova Technology(HK) Co.,Ltd | Quarktwin Technology Ltd. | Win Source Electronics | DigiKey | Shenzhen Shengyu Electronics Technology Limited | Newark, An Avnet Company | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs | Battery Charger ICs |
| Product Number | ISL9237HRZ-T7A | 1250809 | ISL9237HRZ-T7A | ISL9237HRZ-T7A | ISL9237HRZ-T7A | 777483-ISL9237HRZ-T7A | ISL9237HRZ-T7ACT-ND | ISL9237HRZ-T7A | 94Y7976 |
| Product Name | Buck-Boost Narrow VDC Battery Charger with SMBus Interface and USB OTG | PMIC - Battery Chargers | PMIC - Battery Chargers | Battery Chargers | PMIC - PMIC - Battery Chargers - ISL9237HRZ-T7A | PMIC - Battery Chargers | Integrated Circuits (ICs) - PMIC - Battery Chargers | Buck-Boost Batt Charger, Li-Ion, Qfn-32; Battery Type Renesas | |
| Package Type | QFNL | QFN | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | 32-VFQFN Exposed Pad | QFN | |||
| Supply Voltage | 3.2 to 23.4 volts | 23.4 volts | 23.4 volts | ||||||
| Charge Current | 64 to 512 mA | ||||||||
| Accuracy | 0.5000 % | ||||||||
| Cell Type | Li-Ion; Lithium-Ion | Li-Ion; Lithium Ion | Li-Ion | Li-Ion; Lithium Ion | Li-Ion; Li-Ion |
