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Specifications
Operating Current:
12mA
Operation Points:
10mT
Release Points:
-10mT
Operating Temperature:
-20℃~+85℃
Voltage - Supply:
3.5V~16V
Mfr. Part #:
AH277AZ4-CG1
Package:
TO-94
Key Attributes
Model Number:
AH277AZ4-CG1
Product Description
Product Overview
The AH277A is an integrated Hall sensor with a complementary open-collector output driver, designed for the electronic commutation of brushless DC motor applications. It features an on-chip Hall sensor, amplifier, Schmitt trigger for noise rejection, and temperature compensation. The device provides two complementary outputs that switch based on magnetic flux density, offering hysteresis for reliable operation. It includes an internal band-gap regulator for stable bias voltage and reversed supply voltage protection.
Product Attributes
- Brand: BCD Semiconductor Manufacturing Limited
- Package Type: TO-94 (SIP-4L)
- Certifications: RoHS compliant (designated with "E1" suffix)
- Green Package Available (designated with "G1" suffix)
Technical Specifications
| Part Number | Circuit Type | Package | Magnetic Characteristics (Grade) | Lead Free/Green | Packing Type |
| AH277AZ4-AE1 | AH277A | Z4: TO-94 (SIP-4L) | A: 10 to 50Gauss | E1: Lead Free | Bulk |
| AH277AZ4-AG1 | AH277A | Z4: TO-94 (SIP-4L) | A: 10 to 50Gauss | G1: Green | Bulk |
| AH277AZ4-BE1 | AH277A | Z4: TO-94 (SIP-4L) | B: 5 to 70Gauss | E1: Lead Free | Bulk |
| AH277AZ4-BG1 | AH277A | Z4: TO-94 (SIP-4L) | B: 5 to 70Gauss | G1: Green | Bulk |
| AH277AZ4-CE1 | AH277A | Z4: TO-94 (SIP-4L) | C: 100Gauss | E1: Lead Free | Bulk |
| AH277AZ4-CG1 | AH277A | Z4: TO-94 (SIP-4L) | C: 100Gauss | G1: Green | Bulk |
| Parameter | Symbol | Value | Unit | Notes |
| Supply Voltage | VCC | 3.5 to 16 | V | Recommended Operating Conditions |
| Reverse Protection Voltage | VRCC | -20 | V | Absolute Maximum Ratings |
| Output Sink Current (avg) | IO | 400 | mA | Absolute Maximum Ratings |
| Output Sink Current (Hold) | IO | 600 | mA | Absolute Maximum Ratings |
| Output Sink Current (Peak start up) | IO | 800 | mA | Absolute Maximum Ratings |
| Power Dissipation | PD | 550 | mW | Absolute Maximum Ratings |
| Storage Temperature | TSTG | -50 to 150 | C | Absolute Maximum Ratings |
| ESD Rating (Machine Model) | 300 | V | Absolute Maximum Ratings | |
| ESD Rating (Human Body Model) | 2000 | V | Absolute Maximum Ratings | |
| Operating Temperature | TA | -20 to 85 | C | Recommended Operating Conditions |
| Output Saturation Voltage | VSAT | 0.35 to 0.6 | V | IO=400mA, TA=25C |
| Output Leakage Current | IOL | 10 | A | VCE=16V |
| Supply Current | ICC | 12 to 16 | mA | VCC=16V, Output Open |
| Output Rise Time | tr | 10 | s | RL=820, CL=20pF |
| Output Fall Time | tf | 1.5 | s | RL=820, CL=20pF |
| Switch Time Differential | t | 10 | s | RL=820, CL=20pF |
| Output Zener Breakdown Voltage | VZ | 55 | V |
Applications
- Dual-Coil Brushless DC Motor
- Dual-Coil Brushless DC Fan
- Revolution Counting
- Speed Measurement
2210281030_DIODES-AH277AZ4-CG1_C526356.pdf
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