MA177 MPOWER | Alldatasheet
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Technical content
Single Output Hall Effect Latch GENERAL DESCRIPTION MA177 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device is using HV BCD process includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a Schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. An internal band-gap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range. If a magnetic flux density larger than threshold Bop, OUT is turned on(low). The output state is held until a magnetic flux density reversal falls below Brp causing OUT to be turned off (high). FEATURES - 3.3V to 26V DC operation voltage - Temperature compensation - Wide operating voltage range - Open-Drain pre-driver - 25mA maximum sinking output current. - -40°C to 85°C operating temperature - Low Profile SOT23-3L and SIP-3L Package( Green and Lead Free ) PIN ASSIGNMENT The package of MA177 are SOT23-3L and SIP-3L ; the pin assignment is given by: VDD OUT (Top View) GND VDD GND OUT (Top View)MA177 SIP-3L SOT23-3L Name Description VDD Supply Voltage OUT Output GND Ground.
BLOCK DIAGRAM RDER/MARKING INFORMATION Order Information Top Marking (SIP-3L) Order Information Top Marking (SOT23-3L) A BSOLUTE MAXIMUM RATINGS (at TA=25°C) Characteristics Symbol Rating Unit Supply Voltage VCC 28 V Reverse VCC Polarity Voltage V RCC -28 V Magnetic Flux Density B Unlimited Gauss Output Current Continuous I O 25 mA Power Dissipation PD 550 mW Storage Temperature Range T STG -65 to +150 °C Thermal Resistance from Junction to case θJC 49 °C/W Thermal Resistance from Junction to ambient θJA 227 °C/W Ambient Temperature T A -40 to 85 °C
ELECTRICAL CHARACTERISTICS (VDD = 12V, TA = +25°C, unless otherwise noted.) Characteristics Symbol Conditions Min Typ Max Units Supply Voltage VDD Operating 3.3 - 26 V Supply current I DD Operating - 3.0 4.5 mA Output Leakage Current I OFF V OUT=12V - < 0.1 10 μA Output Saturation Voltage Vds (sat) I OUT=20mA - 0.3 - V M a g n e t i c (1mT=10 Gauss) Operate Point BOP 5 35 60 Gauss Release Point BRP -60 -35 -5 Gauss Hysteresis BHYS - 70 - Gauss Driver output vs. magnetic pole(SIP3) Characteristics Test Conditions DO North pole B < Brp High South pole B > Bop Low Note: The magnetic pole is applied facing the branded side of the SIP3 package BopBrp 0 VOUT B TEST CIRCUIT
PACKAGE OUTLINES (1) SOT-23-3L L e E D b A VIEW C GAUGE PLANE C SEE VIEW C Symbol Dimensions in Millimeters Dimensions in Inches A1 0 0.08 0.15 - - 0.006 e 1.9 BSC 0.075 BSC e1 0.95 BSC 0.037 BSC θ 0o 4 o 8o 0o 4o 8 o JEDEC outline: NA
- SIP-3L Symbol Dimensions in Millimeters Dimensions in Inches A1 0.75 REF. 0.030 REF. e1 1.27 BSC 0.050 BSC