TPS65217A_12 Datasheet, PDF (1/86 Pages) Texas Instruments – SINGLE-CHIP PMIC FOR BATTERY-POWERED SYSTEMS

TPS65217A, TPS65217B, TPS65217C
www.ti.com
SLVSB64E – NOVEMBER 2011 – REVISED JULY 2012
SINGLE-CHIP PMIC FOR BATTERY-POWERED SYSTEMS
Check for Samples: TPS65217A, TPS65217B, TPS65217C
FEATURES
1
234CHARGER/POWER PATH
• 2-A Output Current on Power Path
• Linear Charger; 700-mA Maximum Charge
Current
• 20-V Tolerant USB and AC Inputs
• 100-mA, 500-mA, 1300-mA or 1800-mA Current
Limit on USB Input
• Thermal Regulation, Safety Timers
• Temperature Sense Input
STEP-DOWN CONVERTER (DCDC1, 2, 3)
• Three Step-Down Converter With Integrated
Switching FETs
– 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
• 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
LDOs (LDO1, 2)
• Two Adjustable LDOs
– LDO1: 1.0 V – 3.3 V (1.8-V Default)
at 100 mA
– 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
LOAD SWITCHES (LDO3, 4)
• Two Independent Load Switches That Can Be
Configured as LDOs
• Configured as Switches:
– VIN Range: 1.8 V – 5.8 V
– Switch Impedance 300 mΩ (Typical)
– 200-mA Current Limit
– Passive Discharge to Ground When
Disabled
• Configured as LDOs:
– LDO Output Voltage Range: 1.5 V – 3.3 V
– VIN Range: 2.7 V – 5.8 V
– 200-mA Current Limit (TPS65217A, B)
– 400-mA Current Limit (TPS65217C)
– Passive Discharge to Ground When
Disabled
WLED DRIVER
• Internally Generated PWM for Dimming
Control
• 38-V Open LED Protection
• Supports Two Strings of Up To 10 LEDs at
25 mA Each
• Internal Low-Side Current Sinks
PROTECTION
• Undervoltage Lockout and Battery Fault
Comparator
• Always-On Push-Button Monitor
• Hardware Reset Pin
• Password Protected I²C^® Registers
INTERFACE
• I²C Interface (Address 0x24)
• Password Protected I²C Registers
PACKAGE
• Available in 6-mm × 6-mm, 48-Pin QFN
APPLICATIONS
• AM335x ARM^® Cortex™-A8 Microprocessors
• Portable Navigation Systems
• Tablet Computing
• 5-V Industrial Equipment
1
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.
Cortex is a trademark of ARM Ltd or its subsidiaries.
2
ARM is a registered trademark of ARM Ltd or its subsidiaries.
3
I²C is a registered trademark of Philips Semiconductors Corporation.
4
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 © 2011–2012, Texas Instruments Incorporated