Brushless DC (BLDC) Single-Chip Motor Drive IC
The ECN30102 is a fully integrated, single-chip BLDC motor driver that facilitates a rapid design process and low part count solution. The chip integrates BLDC Logic with a 3-Pha Inverter containing six (6) 250V rated IGBTs and a Charge Pump TOP Arm bias. T o reduce motor current loss, a BLDC motor can now be driven directly from rectified 110VAC (up to 185VDC) power lines, or from any DC power bus down to 20VDC. On-Chip Brushless (electronic) commutation logic is fully integrated with analog OSC/PWM functions that permit an analog (VSP) voltage to control motor speed.
Description
• Integrated, Single-Chip Direct BLDC Motor Driver IC
• Integrated 3-Pha BLDC motors operating from a 185VDC (down to 20VDC) voltage bus • Integrated Charge Pump - Creates constant TOP Arm bias independent of motor speed • Integrated 3-
Pha Brushless (Electronic) commutation via external Hall ICs
• Integrated 3-Pha 6-IGBT Motor Bridge with on-chip free-wheeling diodes
• Pinout and Board Layout are compatible with the existing Hitachi ECN3018
• Breakdown, Max rated 250VDC/1.2A
• Latch-Up free monolithic IC built with a high voltage Dielectric Isolation (DI) process
• Available in 3 package types with built-in heat sink (T ab)
Functions and Features
• Simple Variable Speed Control via a single (VSP) analog input
• PWM Speed Control without requiring a MicroController
四级分数怎么算• PWM duty cycle generator provides a 0% to 100% speed control range
• Tachometer - Generates a (RPM/60)x(P/2)x3 Hertz speed signal (FG)
• BOTTOM Arms switch at up to 20kHz via an on-chip OSC/PWM
• On-Chip 7.5VDC regulator (CB) with a guaranteed Min load (25mA)
• Over-Current protection is t by an external Sen Resistor (RS)
• Under-Voltage protection for TOP and BOTTOM IGBT Arms
• Low Stand-By power
• An all output IGBT Shut-OFF function
ECN30102SP ECN30102SPV ECN30102SPR (Package Type:SP-23TA) (Package Type:SP-23TB) (Package Type:SP-23TR)
英语文章下载
ECN30102
1. Maximum Allowable Ratings
General Note: To determine appropriate deratings for the absolute maximum ratings,e pages 13 and 14 (the Appendix) paragraphs 1.1, 1.2, 1.3 and 1.4. Plea refer to the “Precautions for U” on our website.
Note 1: Output I GBTs can handle this peak motor current at up to 25 o C junction operating temperature (e Appendix Figure 7). Motor current transients (during Start & Speed-Up) may require a Soft Start circuit to limit the initial currents. See: Motor Control Tech Tips, Volume 1, Issue 1 (Feb’02), “Motor Soft-Start” on our website. Also e Motor Control T ech Tips, Volume 1, Issue 7 (Aug ‘02), “BLDC Power Bus Under/Over Voltage Protection” on our website.
Note 2: Thermal resistance
1)Between junction and IC ca (Tab): Rj-c = 4 o C/W 2)Between junction and air: Rj-a = 40 o C/W无辜眼妆
Ta = 25 o C NO.Items Symbol Terminals
detentionRatings
Unit Condition 1Output Device
arkeBreakdown Voltage VSM VS1, VS2MU, MV, MW
250V 2Analog Supply voltage VCC VCC 18V 3Input voltage VIN VSP, RS HU, HV, HW -0.5 to VB+0.5V 4Pul IP 1.2
Note 1
5Output current DC
metaIDC MU, MV, MW 0.7
A 6V
B supply current IBMAX CB 50mA 7Junction Operating Temperature
Tjop --20 to +135
o C
Note 2
8
Storage temperature
Tstg
--40 to +150
o
C
ECN30102
1.1 Safe Operating Area (SOA) and Derating The ECN30102 should never be ud outside the SOA shown, where the current and voltage are at the MU, MV and MW pins (motor coils) when the pha is changed (turned-OFF).
Output Pin voltage (V)
SOA region
O u t p u t P i n c u r r e n t (A )
VCC = 15V
Tj = 25
o C
1.2
185
2. Electrical characteristics
Note 1. See Standard Applications in Section 4, page 8 to t the SAW wave frequency.
Note 2. The amplitude of SAW (i.e., VSAWW) is determined by the following equation: VSAWW = VSAWH – VSAWL
Note 3. Internal Pull Up resistors are typically 200 k Ω. The equivalent circuit is shown in Fig. 2.Note 4. Internal Pull Down resistors are typically 200 k Ω. The equivalent circuit is shown in Fig. 3.Note 5. The equivalent circuit is shown in Fig. 4.
平静的英文Note 6. The LVSD (Low Voltage Shut Down) function Detects and Shuts-Down at lower VCC.
ECN30102
o
Figure 2 Equivalent circuit around HU, HV , HW
Figure 3 Equivalent circuit around VSP
Figure 4 Equivalent circuit around FG
ECN30102
3. IGBT Motor Bridge Commutation and Logic Functions 3.1 T ruth table
3.2 Timing chart
Hall signal Input U
V
W
stage
HU HV HW Top arm Bottom arm Top arm Bottom arm Top arm Bottom arm FG Output (1)H L H OFF ON ON
OFF OFF OFF
H (2)H L L OFF ON OFF OFF ON OFF L (3)H H L OFF OFF OFF ON ON OFF H (4)L H L ON OFF OFF ON OFF OFF L (5)L H H ON OFF OFF OFF OFF ON H (6)L L H OFF OFF ON OFF OFF ON L -L L L OFF OFF OFF OFF OFF OFF L -
厦门加拿大留学中介H
H
H
OFF
OFF
OFF
OFF欧拉常数
OFF
OFF
河北教育考试院录取结果查询H
HU
HV HW
MU Output
voltage Hall signal
Input
MV Output voltage MW Output voltage FG Output voltage
Stage
ECN30102
