UC2625-EP
SLUS802–MARCH 2008 .................................................................................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply for: TA = 25°C; Pwr VCC = VCC = 12 V; ROSC = 20 kΩ to VREF; COSC = 2 nF;
RTACH = 33 kΩ; CTACH = 10 nF; and all outputs unloaded. TA = TJ.
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Overall
Supply current
14.5
8.95
8.05
30.0
9.55
8.55
mA
V
VCC turn-on threshold
VCC turn-off threshold
-55°C to 125°C
8.65
7.75
Overvoltage/Coast
OV-COAST inhibit threshold
1.65
1.535
0.05
1.75
1.65
0.10
–1
1.85
1.75
0.155
10
OV-COAST restart threshold
OV-COAST hysteresis
V
-55°C to 125°C
-55°C to 125°C
OV-COAST input current
–10
µA
Logic Inputs
H1, H2, H3 low threshold
H1, H2, H3 high threshold
H1, H2, H3 input current
QUAD SEL, dir thresholds
QUAD SEL hysteresis
DIR hysteresis
0.8
1.6
1.0
1.9
–250
1.4
70
1.25
2.0
V
-55°C to 125°C, to 0 V
-55°C to 125°C
–400
0.8
–120
3.0
µA
V
mV
V
0.6
50
QUAD SEL input current
DIR input current
–30
–30
150
30
µA
–1
PWM Amp/Comparator
E/A IN(+), E/A IN(–) input current
PWM IN input current
Error amp input offset
Error amp voltage gain
E/A OUT range
To 2.5 V
–5.0
0
–0.1
3
5.0
30
10
µA
To 2.5 V
0 V < VCOMMON-MODE < 3 V
–10
70
mV
dB
90
0.25
0.25
-16
3.50
4.55
–5
V
-55°C to 125°C
To 0 V
Pullup current
–10
µA
To 0 V , -55°C to 125°C
To 2.5 V
–17.5
0.1
-5
SSTART
Discharge current
Restart threshold
0.4
0.2
3.0
0.3
mA
V
0.1
Current Amp
Gain
ISENSE1 = 0.3 V, ISENSE2 = 0.5 V to 0.7 V
ISENSE1 = 0.3 V, ISENSE2 = 0.3 V
1.75
2.4
1.95
2.5
2.15
2.65
0.26
0.36
0
V/V
V
Level shift
Peak current threshold
Over current threshold
ISENSE1, ISENSE2 input current
ISENSE1, ISENSE2 offset current
Range ISENSE1, ISENSE2
0.14
0.26
–850
0.20
0.30
–320
±2
ISENSE1 = 0 V, force ISENSE2
To 0 V
µA
±12
2
–1
4.7
V
Tachometer/Brake
TACH-OUT high level
TACH-OUT low level
On time
5
5.3
0.2
-55°C to 125°C, 10 kΩ to 2.5 V
V
170
220
0.1%
–1.9
1.0
280
µs
On time change with temp
RC-BRAKE input current
Threshold to brake, RC-brake
Brake hysteresis, RC-brake
-55°C to 125°C
To 0 V
–4.0
0.8
mA
V
-55°C to 125°C
1.2
0.09
4
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