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3625 の電気的特性と機能

3625のメーカーはAllegro MicroSystemsです、この部品の機能は「POWERHALL SENSOR/DRIVERS FOR BRUSHLESS DC MOTORS」です。


製品の詳細 ( Datasheet PDF )

部品番号 3625
部品説明 POWERHALL SENSOR/DRIVERS FOR BRUSHLESS DC MOTORS
メーカ Allegro MicroSystems
ロゴ Allegro MicroSystems ロゴ 




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3625 Datasheet, 3625 PDF,ピン配置, 機能
3625 AND
3626
CONTACT FACTORY
for availability
and latest information
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VCC . . . . . . . . . . See Table
Output Current, IO . . . . . . . . . . . . See Table
PWM Current Control Voltage,
VADJ . . . . . . . . . . . . . See Applications
Magnetic Flux Density, B . . . . . . Unlimited
Package Power Dissipation,
PD . . . . . . . . . . . . . . . . . . . . See Graph
Operating Temperature Range,
TA . . . . . . . . . . . . . . . . . -20°C to +85°C
Storage Temperature Range,
TS . . . . . . . . . . . . . . . . -65°C to +150°C
VCC(MAX)
IO(CONT)
IO(PEAK)
UDN3625M
14 V
1.0 A
1.6 A
UDN3626M
26 V
0.45 A
0.75 A
Output current rating will be limited by
ambient temperature, supply voltage, and
duty cycle. Under any set of conditions, do
not exceed a junction temperature of
+150°C.
POWERHALL® SENSOR/DRIVERS
FOR BRUSHLESS DC MOTORS
Requiring a minimum of external components, the UDN3625M
and UDN3626M are monolithic ICs that provide single-chip control
and direct drive solutions for many small, single-phase, unipolar
brushless dc motor applications. Integrated into the ICs are a high-
sensitivity Hall-effect sensor, control and commutating logic, a stable
voltage regulator, extensive self and system protective functions, and
two high-current saturated npn outputs. Both ICs include thermal
shutdown, output over-current limiting, and output transient protection/
flyback diodes. The UDN3625M is nominally for 12 V motor applica-
tions while the UDN3626M is better suited to 24 V motors.
Output over-current limiting (relating to startup surge or a locked
rotor condition) and short-circuit protection are provided by an internal
current-sense resistor. The maximum (default) output load current is
typically 1.3 A for the UDN3625M or 600 mA for the UDN3626M,
but may be decreased by user selection of an external low-wattage
resistor.
A separate low-level output provides tachometer capability for
motor speed control or sensing a locked rotor condition. With appro-
priate external logic, pulse-width modulated (PWM) speed control can
be accomplished at the output current adjust pin.
These sensor/drivers are supplied in an 8-pin mini-DlP plastic
package with a copper leadframe for increased package power
handling capability.
FEATURES
s 900 mA /12 V or 400 mA /24 V Operation
s Speed-Control (PWM) Capability
s Locked-Rotor Indication
s Minimum External Components
s Over-Current Protected
s Thermal Protection
s Enhanced Reliability
s Reduced Cost
Always order by complete part number, e.g., UDN3625M .
See Maximum Ratings at left.

1 Page





3625 pdf, ピン配列
3625 AND 3626
POWERHALL®
SENSOR/DRIVERS FOR
BRUSHLESS DC MOTORS
ELECTRICAL CHARACTERISTICS at TA = +25°C, RADJ = , Over Operating Voltage Range
(unless otherwise noted).
Characteristic
UDN3625M
Operating Voltage Range
Output Leakage Current
Output Breakdown Voltage
Output Saturation Voltage
Output Current Limit
Output Clamp Voltage
(Test Fig. 1)
Output Switching Time
Supply Current
(Test Fig. 2)
UDN3626M
Operating Voltage Range
Output Leakage Current
Output Breakdown Voltage
Output Saturation Voltage
Output Current Limit
Output Clamp Voltage
(Test Fig. 1)
Output Switching Time
Supply Current
(Test Fig. 2)
Symbol
VS
IO
V(BR)CEX
VO(SAT)
IO MAX
VCL
tPLH
lCC
VS
lO
V(BR)CEX
VO(SAT)
lOMAX
VCL
tPLH
lCC
Test Conditions
Min.
VCC = VO = 24 V
VCC = 24 V, lO = 10 mA*
IO = 450 mA, VS = 6.5 V
IO = 900 mA, VS = 12 V
RADJ = , VO = 2 V
ICL = 10 mA, VCC = 0
ICL = 450 mA=, VCC = 0
50% VADJ to VO = 3.0 V, lO = 450 mA
RADJ = , VS = 14 V, One Output ON
RADJ = 0 , VS = 14 V, Outputs OFF
6.5
34
1.0
11
13
VCC = VO = 30 V
VCC = 30 V, lO = 10 mA*
lO = 250 mA, VS = 6.5 V
lO = 400 mA, VS = 24 V
RADJ = , VO = 2 V
ICL = 10 mA, VCC = 0
ICL = 250 mA, VCC = 0
50% VADJ to VO = 3.0 V, lO = 250 mA
RADJ = , VS = 26 V, One Output ON
RADJ = 0 , VS = 26 V, Outputs OFF
50
450
17
19
* lO is almost entirely Zener clamp current.
† Pulse test.
‡ Dependent on value of external series Zener diode (see Applications), 6.5 V without a Zener diode.
Limits
Typ. Max.
Units
12
0.25
0.5
1.3
12
14
30
8.0
14
100
0.4
0.8
1.6
13
15
5.0
38
10
V
µA
V
V
V
A
V
V
µs
mA
mA
24
0.15
0.3
600
18
20
8.0
26
100
0.3
0.5
750
20
22
5.0
24
10
V
µA
V
V
V
mA
V
V
µs
mA
mA
Continued next page...


3Pages


3625 電子部品, 半導体
3625 AND 3626
POWERHALL®
SENSOR/DRIVERS FOR
BRUSHLESS DC MOTORS
The external overcurrent adjust and the thermal shutdown are commoned
at the PWM/lO ADJ pin and tieing it to VCC will disable the thermal shut-
down. PWM current/speed control can be performed at the PWM/lO ADJ pin
from a standard totem-pole logic output with a series Schottky diode
(1N5818,1N5819, or equivalent) or by pulling it low through an open-
collector transistor (no pull-up resistor). PWM/lO ADJ input voltages greater
than 0.3 V are not recommended and may create an unstable operating
condition.
TYPICAL FAN APPLICATION
MAGNETIC FIELD
DEFINITIONS
OUTA ON/LOW
S
+B
N
B=0G
+BO P
-B +B
-B O P
Dwg. AP-001-1
OUTB ON/LOW
Dwg. GP-008
By accepted magnetic convention, lines of flux emanate from the north pole of a magnet and enter the south pole.
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000

6 Page



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共有リンク

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部品番号部品説明メーカ
3625

POWERHALL SENSOR/DRIVERS FOR BRUSHLESS DC MOTORS

Allegro MicroSystems
Allegro MicroSystems
3628A

BIPOLAR PROM

Intel Corporation
Intel Corporation


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