Product Summary

The TMP814PWR is a single-phase bipolar variable speed fan motor predriver that works with an external PWM signal. A highly efficient, quiet and low power consumption motor driver circuit, with a large variable speed, can be implemented by adding a small number of external components. The TMP814PWR is optimal for driving large scale fan motors (with large air volume and large current) such as those used in servers and consumer products.

Parametrics

TMP814PWR absolute maximum ratings: (1)VCC Supply voltage: 18V; (2)VOUT Output voltage OUT1P, OUT1N, OUT2P, OUT2N: 18V; (3)IOUT Continuous output current OUT1P, OUT1N, OUT2P, OUT2N: 50mA; (4)IHB Continuous output current HB: 10mA; (5)VTH Input voltage VTH: 8V; (6)VVRFGD Output voltage RD, FG: 18V; (7)IIRFGD Continuous output current RD, FG: 10mA; (8)qJA Package thermal impedance(2): 83℃/W; (9)Tstg Storage temperature range: –65 to 150℃.

Features

TMP814PWR features: (1)Pre-Driver for Single-Phase Full-Wave Drive; (2)External PWM Input Enabling Variable Speed Control; (3)Compatible with 12-V, 24-V, and 48-V Power Supplies; (4)Current Limiter Circuit Incorporated; (5)Reactive Current Cut Circuit Incorporated; (6)Minimum Speed Setting Pin; (7)Constant-Voltage Output Pin for Hall Bias; (8)Lock Protection and Automatic Reset Functions Incorporated; (9)FG (Rotation Speed Detection) and RD (Lock Detection) Output.

Diagrams

TMP814PWR block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TMP814PWR
TMP814PWR

Texas Instruments

Motor / Motion / Ignition Controllers & Drivers Fan Motor Pre-Driver

Data Sheet

0-1: $0.47
1-25: $0.37
25-100: $0.34
100-250: $0.30
Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
TMP8049PI-6
TMP8049PI-6

Other


Data Sheet

Negotiable 
TMP814PWR
TMP814PWR

Texas Instruments

Motor / Motion / Ignition Controllers & Drivers Fan Motor Pre-Driver

Data Sheet

0-1: $0.47
1-25: $0.37
25-100: $0.34
100-250: $0.30
TMP815PWR
TMP815PWR

Texas Instruments

Motor / Motion / Ignition Controllers & Drivers Sgl-Ph Full-Wave Fan-Motor Pre-Driver

Data Sheet

0-1: $0.47
1-25: $0.37
25-100: $0.34
100-250: $0.30
TMP816PWR
TMP816PWR

Texas Instruments

Motor / Motion / Ignition Controllers & Drivers Sgl-Ph Full-Wave Fan-Motor Pre-Driver

Data Sheet

0-1400: $0.23
1400-2000: $0.21
2000-5000: $0.20
5000-10000: $0.20
TMP821DR
TMP821DR

Texas Instruments

Motor / Motion / Ignition Controllers & Drivers Two-Phase Half-Wave Motor Predriver

Data Sheet

0-1: $0.32
1-25: $0.25
25-100: $0.22
100-250: $0.19
TMP821DRG4
TMP821DRG4

Texas Instruments

Motor / Motion / Ignition Controllers & Drivers Two-Phase Half-Wave Motor Predriver

Data Sheet

0-1: $0.32
1-25: $0.25
25-100: $0.22
100-250: $0.19