UCM101

UNISONIC TECHNOLOGIES CO., LTD UCM101 Preliminary BIDIRECTIONAL PRECISION HIGH-SIDE CURRENT MONITOR  DESCRIPTION The UTC UCM101 is a bidirectional precision high-side current sense monitor. It uses UTC’s advanced technology to provide customers with a minimum operating current, high accuracy, high side voltage and a fixed gain of 10, etc. The UTC UCM101’s output voltage is proportional to the differential input voltage. Direction of current flow is indicated by the Flag pin. The UTC UCM101 is suitable for widely voltage range applications and portable battery equipment. LINEAR INTEGRATED CIRCUIT 4 5 3 12 SOT-25  FEATURES * Low operating current * High side voltage (2.7~20V) * A fixed gain of 10 * High accuracy (typ=1%)  ORDERING INFORMATION Ordering Number UCM101G-AF5-R Package SOT-25 Packing Tape Reel  MARKING www.unisonic.com.tw Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 4 QW-R502-933.b UCM101  PIN CONFIGURATION Preliminary S- S+ 5 4 LINEAR INTEGRATED CIRCUIT 1 2 3 Flag GND OUT  PIN DESCRIPTION PIN NO. 1 2 3 4 5 PIN NAME Flag GND OUT S+ S- DESCRIPTION This is the current direction pin. It is open collector and allows the logic high level to be set independent of VS+ voltage. Low indicates VS+ is greater than VSGround pin Output voltage pin This is the positive input of the current monitor. It also acts as the supply voltage pin providing current for internal circuitry. The current through this pin varies with differential sense vol...