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BQ24071RHLT Datasheet(PDF) 2 Page - Texas Instruments |
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BQ24071RHLT Datasheet(HTML) 2 Page - Texas Instruments |
2 / 26 page www.ti.com DESCRIPTION (CONTINUED) bq24070 bq24071 SLUS694B – MARCH 2006 – REVISED AUGUST 2006 These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOSFET gates. The MODE pin selects the priority of the input sources. If an input source is not available, then the battery is selected as the source. With the MODE pin high, the bq24070/1 attempts to charge from the input at the charge rate set by ISET1 pin. With the MODE pin low, the bq24070/1 defaults to USB charging at the charge rate. This feature allows the use of a single connector (mini-USB cable), where the host programs the MODE pin according to the source that is connected (AC adaptor or USB port). Table 1 summarizes the MODE pin function. Table 1. Power Source Selection Function Summary MODE STATE AC MAXIMUM SYSTEM USB BOOT-UP ADAPTER CHARGE RATE(1) POWER FEATURE SOURCE Low Present ISET2 USB Enabled Absent N/A Battery Disabled High Present ISET1 AC Disabled Absent N/A Battery Disabled (1) Battery charge rate is always set by ISET1, but may be reduced by a limited input source (ISET2 USB mode) and IOUT system load. ORDERING INFORMATION(1) BATTERY PART PACKAGE TA OUT PIN STATUS VOLTAGE (V) NUMBER(2)(3) MARKING 4.2 Regulated to 4.4 V(4) bq24070RHLR Production BRQ 4.2 Regulated to 4.4 V(4) bq24070RHLT Production BRQ –40°C to 125°C 4.2 Regulated to 6.0 V bq24071RHLR Production BTR 4.2 Regulated to 6.0 V bq24071RHLT Production BTR (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI Web site at www.ti.com. (2) The RHL package is available in the following options: R - taped and reeled in quantities of 3,000 devices per reel. T - taped and reeled in quantities of 250 devices per reel. (3) This product is RoHS compatible, including a lead concentration that does not exceed 0.1% of total product weight, and is suitable for use in specified lead-free soldering processes. In addition, this product uses package materials that do not contain halogens, including bromine (Br) or antimony (Sb) above 0.1% of total product weight. (4) If AC < VO(OUT-REG), the AC is connected to the OUT pin by a P-FET, (Q1). 2 Submit Documentation Feedback |
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