Brushless DC-Flat Motors Series 1509 ... B

4 Pole Technology

Key Features

Nominal voltage:

6 ... 12 V

Rated torque up to:

0.45 mNm

No-load speed up to:

15000 min⁻¹

Stall torque up to:

0.953 mNm

Diameter:

15 mm

Length:

8.8 mm

Advantages

Extremely flat design. Lengths ranging from 9 mm to 22 mm

4-pole design

Electronic commutation using three digital Hall sensors

Integrated spur gearheads of minimal length with high gear ratio are available

Precise speed control

Variants:

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	6 V
Terminal resistance, phase-phase	R	22 Ω
Efficiency, max.	η_max.	54 %
No-load speed	n₀	15000 min⁻¹
No-load current	I₀	0.019 A
Stall torque	M_H	0.953 mNm
Friction torque, static	C₀	0.019 mNm
Friction torque, dynamic	C_V	3.42 ·10⁻⁶ mNm/min⁻¹
Speed constant	k_n	2682 min⁻¹/V
Back-EMF constant	k_E	0.373 mV/min⁻¹
Torque constant	k_M	3.56 mNm/A
Current constant	k_I	0.281 A/mNm
Slope of n-M curve	Δn/ΔM	16577 min⁻¹/mNm
Terminal inductance, phase-phase	L	570 µH
Mechanical time constant	τ_m	120 ms
Rotor inertia	J	0.69 gcm²
Angular acceleration	α_max.	14 ·10³rad/s²
Thermal resistance	R_th1/R_th2	65 / 45 K/W
Thermal time constant	τ_w1/τ_w2	12 / 133 s
Operating temperature range		-25 ... 80 °C
Winding temperature, max.		80 °C
Housing material		plastic
Mass		6.9 g
Direction of rotation		electronically reversible
Speed up to	n_max.	40000 min⁻¹
Number of pole pairs		2
Hall sensors		digital
Magnet material		NdFeB

Values at 22° and nominal voltage		Value
Nominal voltage	U_N	12 V
Terminal resistance, phase-phase	R	92.7 Ω
Efficiency, max.	η_max.	53 %
No-load speed	n₀	14900 min⁻¹
No-load current	I₀	0.009 A
Stall torque	M_H	0.904 mNm
Friction torque, static	C₀	0.019 mNm
Friction torque, dynamic	C_V	3.42 ·10⁻⁶ mNm/min⁻¹
Speed constant	k_n	1339 min⁻¹/V
Back-EMF constant	k_E	0.747 mV/min⁻¹
Torque constant	k_M	7.13 mNm/A
Current constant	k_I	0.14 A/mNm
Slope of n-M curve	Δn/ΔM	17423 min⁻¹/mNm
Terminal inductance, phase-phase	L	2282 µH
Mechanical time constant	τ_m	126 ms
Rotor inertia	J	0.69 gcm²
Angular acceleration	α_max.	13 ·10³rad/s²
Thermal resistance	R_th1/R_th2	65 / 45 K/W
Thermal time constant	τ_w1/τ_w2	12 / 133 s
Operating temperature range		-25 ... 80 °C
Winding temperature, max.		80 °C
Housing material		plastic
Mass		6.9 g
Direction of rotation		electronically reversible
Speed up to	n_max.	40000 min⁻¹
Number of pole pairs		2
Hall sensors		digital
Magnet material		NdFeB

Operating Area

Recommended operation areas at nominal voltage 6 V

The diagram indicates the recommended speed in relation to the available torque at the output shaft for a given ambient temperature of 22°C.

The diagram shows the motor in a completely insulated as well as thermally coupled condition (R_th2 50% reduced).

The nominal voltage (U_N) curve shows the operating point at nominal voltage in the insulated and thermally coupled condition. Any points of operation above the curve at nominal voltage will require a higher operating voltage. Any points below the nominal voltage curve will require less voltage.

Characteristic curves of motor