SNAS491C February   2010  – January 2025 LM48580

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics: VDD = 3.6 V #GUID-238D0643-98EF-4676-B2E1-A584A5DF74F7/SNAS491599
    6. 5.6 Typical Performance Characteristics
  7.   Parameter Measurement Information
  8. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Class H Operation
      2. 6.3.2 Properties of Piezoelectric Elements
      3. 6.3.3 Differential Amplifier Explanation
      4. 6.3.4 Thermal Shutdown
      5. 6.3.5 Gain Setting
    4. 6.4 Device Functional Modes
      1. 6.4.1 Shutdown Function
  9. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
        1. 7.2.1.1 Proper Selection of External Components
          1. 7.2.1.1.1 Boost Converter Capacitor Selection
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Boost Converter Output Capacitor Selection
          1. 7.2.2.1.1 Inductor Selection
          2. 7.2.2.1.2 Diode Selection
        2. 7.2.2.2 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Example
  10. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
    2. 8.2 Receiving Notification of Documentation Updates
    3. 8.3 Community Resources
    4. 8.4 Trademarks
  11. 9 Revision History
  12. 10Mechanical, Packaging, and Orderable Information

5.5 Electrical Characteristics: VDD = 3.6 V(1)

The following specifications apply for RL = 6 μF + 10Ω, CBST = 1 μF, CIN = 0.47 μF, AV = 24 dB unless otherwise specified. Limits apply for TA = 25°C.
PARAMETERTEST CONDITIONSMin (3)Typ (2)Max (3)Unit
VDDSupply Voltage Range2.55.5V
IDDQuiescent Power Supply Current,
VIN = 0V, RL = ∞		VDD = 3.6V2.74mA
VDD = 3V3mA
PDPower Consumption
VOUT = 25P-P, f = 200 Hz		VDD = 3.6V800mW
VDD = 3V830mW
ISDShutdown CurrentShutdown Enabled0.52µA
TWUWake-up TimeFrom Shutdown11.41.6ms
VOSDifferential Output Offset VoltageVDD = 3.6 V63360mV
AVGainGAIN = FLOAT17.51818.5dB
GAIN = GND23.52424.5dB
GAIN = VDD29.53030.5dB
RINInput Resistance465258kΩ
RINGain Input Resistanceto GND575kΩ
to VDD131kΩ
VINMaximum Input Voltage RangeAV = 18dB3VP-P
VOUTOutput Voltage
f = 200 Hz, THD+N = 1%		VDD = 3.6 V2530.5VP-P
VDD = 3 V30.5VP-P
Output Voltage
f = 2 kHz, THD+N = 5%		VDD = 3.6 V11VP-P
VDD = 3 V8.5VP-P
THD+NTotal Harmonic Distortion + NoiseVOUT = 25VP-P, f = 200Hz0.16%
PSRRPower Supply Rejection Ratio
VDD = 3.6 V + 200 mVp-p sine, Inputs AC GND		fRIPPLE = 217 Hz,75dB
fRIPPLE = 1 kHz71dB
CMRRCommon Mode Rejection Ratio
VCM = 200mVP-P sine		fRIPPLE = 217 Hz56dB
fRIPPLE = 1 kHz55dB
fSWBoost Converter Switching Frequency2.1MHz
ILIMITBoost Converter Current Limit1100mA
VIHLogic High Input ThresholdSHDN1.2V
VILLogic Low Input ThresholdSHDN0.45V
IINInput Leakage CurrentSHDN0.11μA
(1) The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and are not ensured.
(2) Typical values represent most likely parametric norms at TA = +25°C, and at the Recommended Operation Conditions at the time of product characterization and are not specified.
(3) Datasheet min/max specification limits are specified by design, test, or statistical analysis.