TC646BEOA Microchip Technology, TC646BEOA Datasheet - Page 4

• Manufacturer Part Number: TC646BEOA
• Description: IC PWM FAN SPEED CTRLR SD 8-SOIC
• Manufacturer: Microchip Technology
• Type: Controller - PWM Fanr

Specifications of TC646BEOA

• Applications: Fan Controller, Brushless (BLDC)
• Number Of Outputs: 1
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Motor Type: PWM
• No. Of Outputs: 1
• Output Current: 5mA
• Output Voltage: 4.4V
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: SOIC
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Product: Fan / Motor Controllers / Drivers
• Operating Supply Voltage: 6 V
• Supply Current: 400 uA
• Mounting Style: SMD/SMT
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Output: -
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

TC646B/TC648B/TC649B
ELECTRICAL CHARACTERISTICS (CONTINUED)
TEMPERATURE SPECIFICATIONS
DS21755B-page 4
Electrical Specifications: Unless otherwise specified, all limits are specified for -40°C < T
Pulse-Width Modulator
PWM Frequency
SENSE Input (TC646B & TC649B)
SENSE Input Threshold Voltage
with Respect to GND
Blanking time to ignore pulse due
to V
FAULT / OTF Output
Output Low Voltage
Missing Pulse Detector Timer
Start-up Timer
Diagnostic Timer
Note 1:
Electrical Characteristics: Unless otherwise noted, all parameters apply at V
Temperature Ranges
Specified Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Package Resistance, 8-Pin MSOP
Thermal Package Resistance, 8-Pin SOIC
Thermal Package Resistance, 8-Pin PDIP
OUT
2:
turn-on
Parameters
Ensured by design, tested during characterization.
For V
Parameters
DD
< 3.7V, t
STARTUP
V
and t
t
TH(SENSE)
STARTUP
t
BLANK
f
t
Sym
V
PWM
DIAG
t
MP
OL
MP
timers are typically 13/f.
Sym
T
T
T
JA
JA
JA
A
A
A
Min
26
50
—
—
—
—
—
Min
-40
-40
-65
—
—
—
Typ
32/f
32/f
3.0
30
70
3/f
—
Typ
200
155
125
—
—
—
DD
Max
0.3
34
90
—
—
—
—
= 3.0V to 5.5V
+125
+150
Max
+85
—
—
—
A
Units
µsec
mV
sec
sec
sec
Hz
< +85°C, V
V
Units
°C/W
°C/W
°C/W
°C
°C
°C
C
I
TC646B and TC649B, Note 2
Note 2
TC646B and TC649B
OL
2003 Microchip Technology Inc.
F
= 1.0 µF
= 2.5 mA
DD
= 3.0V to 5.5V.
Conditions
Conditions