Datasheet

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1 Kit Contents
1. bq2026EVM REVA board
2. Personal computer (PC) interface board EV2300
3. USB cable (type A-B)
2 bq2026-Based Circuit Module
The bq2026-based circuit module is ideal for programming the 1.5K-bit EPROM and the STATUS bytes of
the bq2026 IC. The circuit module includes a SOT23 single socket, a bq2026 IC, a Zener diode for host
protection during EPROM programming, and a programming circuit that generates a 12-V pulse when
used with a power supply and a control signal. In a typical application, only the bq2026 IC and a pullup
resistor is required.
2.1 Test Points
Table 1. Test Points
Test Point Signal Name Description
J1-1 VSS Device ground
J1-2 PROG Input for timing of EPROM programming pulse
J1-3 SDQ SDQ single-wire communication bus
J2-1 12V High voltage for EPROM programming
J2-2 VSS Programming ground
J3 Connect for EPROM programming
3 bq2026EVM Circuit Module Schematic
The schematic shows the circuit for the bq2026 implementation.
Figure 1. bq2026EVM Schematic
2
bq2026 Evaluation Software SLUU763– December 2011
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