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TPS65217A_13

更新时间： 2024-09-29 12:03:43
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德州仪器 - TI 电池集成电源管理电路
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86页 1596K
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SINGLE-CHIP PMIC FOR BATTERY-POWERED SYSTEMS

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TPS65217A_13 数据手册

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TPS65217A, TPS65217B, TPS65217C, TPS65217D  
www.ti.com  
SLVSB64F –NOVEMBER 2011–REVISED APRIL 2013  
SINGLE-CHIP PMIC FOR BATTERY-POWERED SYSTEMS  
Check for Samples: TPS65217A, TPS65217B, TPS65217C, TPS65217D  
1
FEATURES  
234  
CHARGER/POWER PATH  
–
–
–
Switch Impedance 300 mΩ (Typical)  
200-mA Current Limit  
•
•
2-A Output Current on Power Path  
Passive Discharge to Ground When  
Disabled  
Linear Charger; 700-mA Maximum Charge  
Current  
•
Configured as LDOs:  
•
•
20-V Tolerant USB and AC Inputs  
–
–
–
–
–
LDO Output Voltage Range: 1.5 V – 3.3 V  
VIN Range: 2.7 V – 5.8 V  
100-mA, 500-mA, 1300-mA or 1800-mA Current  
Limit on USB Input  
•
•
Thermal Regulation, Safety Timers  
Temperature Sense Input  
200-mA Current Limit (TPS65217A, B)  
400-mA Current Limit (TPS65217C, D)  
Passive Discharge to Ground When  
Disabled  
STEP-DOWN CONVERTER (DCDC1, 2, 3)  
•
Three Step-Down Converter With Integrated  
Switching FETs  
WLED DRIVER  
–
–
–
DCDC1: 0.9 V – 1.8 V at 1.2 A  
DCDC2: 0.9 V – 3.3 V at 1.2 A  
DCDC3: 0.9 V – 1.5 V at 1.2 A  
•
Internally Generated PWM for Dimming  
Control  
•
•
38-V Open LED Protection  
Supports Two Strings of Up To 10 LEDs at  
25 mA Each  
•
•
•
•
•
•
•
VIN Range: 2.7 V – 5.8 V  
2.25-MHz Fixed Frequency Operation  
Power Save Mode at Light Load Current  
Output Voltage Accuracy in PWM Mode ±2.0%  
100% Duty Cycle for Lowest Dropout  
Typical 15-µA Quiescent per Converter  
Passive Discharge to Ground When Disabled  
•
•
Internal Low-Side Current Sinks  
PROTECTION  
Undervoltage Lockout and Battery Fault  
Comparator  
•
•
•
Always-On Push-Button Monitor  
Hardware Reset Pin  
Password Protected I2C® Registers  
LDOs (LDO1, 2)  
•
Two Adjustable LDOs  
–
LDO1: 1.0 V – 3.3 V (1.8-V Default)  
at 100 mA  
INTERFACE  
•
•
I2C Interface (Address 0x24)  
Password Protected I2C Registers  
PACKAGE  
–
LDO2: 0.9V – 3.3 V (3.3-V Default) at 100 mA  
•
•
•
VIN Range: 1.8 V – 5.8 V  
LDO2 Can Be Configured to Track DCDC3  
Typical 15-µA Quiescent Current  
•
Available in 6-mm × 6-mm, 48-Pin QFN  
APPLICATIONS  
LOAD SWITCHES (LDO3, 4)  
•
•
•
•
AM335x ARM® Cortex™-A8 Microprocessors  
Portable Navigation Systems  
Tablet Computing  
•
•
1
Two Independent Load Switches That Can Be  
Configured as LDOs  
Configured as Switches:  
5-V Industrial Equipment  
–
VIN Range: 1.8 V – 5.8 V  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
2
3
4
Cortex is a trademark of ARM Ltd or its subsidiaries.  
ARM is a registered trademark of ARM Ltd or its subsidiaries.  
I2C is a registered trademark of Philips Semiconductors Corporation.  
PRODUCTION DATA information is current as of publication date.  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
Copyright © 2011–2013, Texas Instruments Incorporated  
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