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TC3827 Datasheet(PDF) 2 Page - Microchip Technology |
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TC3827 Datasheet(HTML) 2 Page - Microchip Technology |
2 / 10 page 2 Lithium-Ion Battery Charger TC3827 TC3827-2 12/12/00 © 2001 Microchip Technology Inc. DS21558A ABSOLUTE MAXIMUM RATINGS* Input Voltage (VIN), VOUT, VSNS, MODE, and IMON ........... .............................................................. –0.3V to 6.0V SHDN ...............................................–0.3V to (VIN + 0.3V) 8-Pin MSOP (derate 4.1mW/ °C above +70°C) .....330mW Operating Ambient Temperature Range .. –20 °C to +85°C Storage Temperature Range ................. –65 °C to +150°C Lead Temperature (Soldering, 10 sec) ................. +300 °C Vapor Phase (60 sec) ........................................... +210 °C Infrared (15 sec) .................................................... +220 °C IIMON (source) ......................................................0.375mA ELECTRICAL CHARACTERISTICS: VIN= [VREG + 1V] , TA = -20°C to +85°C, unless otherwise noted. Typical values at TA = +25°C, RSENSE = 500mΩ, Test Circuit Figure 3. Symbol Parameter Test Conditions Min Typ Max Units IVIN Power Supply Current Shutdown Mode, VSHDN = 0V — 1 15 µA Constant Voltage Mode — 350 560 VIN Power Supply Voltage In 4.5 — 5.5 V Voltage Regulation (Constant Voltage Mode) VREG Battery Regulation Volts 3827- 4.2VUA — 4.2 — V 3827- 4.1VUA — 4.1 — VOUT Output Voltage Accuracy VIN = VREG + 1V to 5.5V, –1 — +1 % LIREG Line Regulation VIN = 4.5V to 5.5V, IOUT = 75mA –10 — +10 mV LDREG Load Regulation IOUT =10mA to 75mA –1 ±0.2 +1 mV IDISCH Output Reverse Leakage VIN = Floating, VOUT = VREG —1 5 µA MOSFET Gate Drive IDRV Gate Drive Current Sink, Constant Voltage Mode (Note 1) — — 1 mA Source, Constant Voltage Mode (Note 1) 0.08 — — VDRV Gate Drive Min Voltage — 1.0 — V Current Sense Amp VGAIN GAIN ( ∆VGS/∆VOUT) — 100 — dB VCS Current Limit Threshold (VIN – VSNS) @ IMAX 40 53 75 mV ISC Short Circuit Current — 46 — mA K KFactor — 0.46 — A/A MODE VTH Mode Threshold — VREG —V VOL Mode Low Voltage ISINK = 10mA, VOUT = 3.5V — — 400 mV ILK Mode Leakage Current VMODE = 5.5V, IO = 0mA, — — +1 µA MODE = Constant Voltage SHDN VIH SHDN High Threshold 40 — — %VDD VIL SHDN Low Threshold – — 25 %VDD ILK SHDN Leakage Current VSHDN = 0V to 5V — — +1 µA IMON ∆VIMON Current Sense Gain VO = 0V to 3.5V,RL > 20kΩ — 26 — V/V ∆(VIN - VSNS) IMODE (sink) .............................................................. 20mA IDRV ............................................................................1mA ESD Rating ................................................................. 2kV *Static-sensitive device. Unused devices must be stored in conductive material. Protect devices from static discharge and static fields. Stresses above those listed under Absolute Maximum Ratings may cause perma- nent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied. Exposure to Absolute Maximum Rating Conditions for extended periods may affect device reliability. Notes: 1. Where VOUT = 1% from Nominal, continuous current. |
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