UCC2895-Q1 Datasheet, PDF (3/22 Pages) Texas Instruments – BiCMOS ADVANCED PHASE-SHIFT PWM CONTROLLER

UCC2895-Q1
www.ti.com
SLUS783C – MAY 2008 – REVISED AUGUST 2012
RECOMMENDED OPERATING CONDITIONS⁽¹⁾ (continued)
MIN NOM MAX UNIT
R_{DEL_AB}
R_{DEL_CD}
Delay resistor
T_J
Operating junction temperature⁽⁴⁾
2.5
40 kΩ
–55
125 °C
(4) It is not recommended that the device operate under conditions beyond those specified in this table for extended periods of time.
ELECTRICAL CHARACTERISTICS
V_DD = 12 V, R_T = 82 kΩ, C_T = 220 pF, R_DELAB = 10 kΩ, R_DELCD = 10 kΩ, C_REF = 0.1 μF, C_VDD = 0.1 μF, no load on the outputs,
T_A = T_J = –40°C to 125°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
Undervoltage Lockout (UVLO)
UVLO_(on)
UVLO_(off)
Start-up voltage threshold
Minimum operating voltage after start-
up
10.2
11 11.8 V
8.2
9
9.8 V
UVLO_(hys)
Supply
Hysteresis
1
2
3V
I_START
Start-up current
I_DD
Operating current
V_{DD_CLAMP} VDD clamp voltage
Voltage Reference
V_DD = 8 V
I_DD = 10 mA
150
250 μA
5
6 mA
16.5 17.5 18.5 V
V_REF
Output voltage
I_SC
Short-circuit current
Error Amplifier
T_J = 25°C
10 V < V_DD < V_{DD_CLAMP},
0 mA < I_REF < 5 mA, T_J = –40°C to 125°C
REF = 0 V, T_J = 25°C
4.94
4.85
10
5 5.06
V
5 5.15
20
mA
Common-mode input voltage
–0.1
3.6 V
V_IO
I_BIAS
V_{OH_EAOUT}
V_{OL_EAOUT}
I_SOURCE
I_SINK
A_VOL
GBW
Offset voltage
Input bias current (EAP, EAN)
High-level output voltage
Low-level output voltage
Error amplifier output source current
Error amplifier output sink current
Open-loop dc gain
Unity gain bandwidth⁽¹⁾
EAP – EAN = 500 mV, I_EAOUT = –0.5 mA
EAP – EAN = –500 mV, I_EAOUT = 0.5 mA
EAP – EAN = 500 mV, EAOUT = 2.5 V
EAP – EAN = –500 mV, EAOUT = 2.5 V
–7
7 mV
–1
1 μA
4
4.5
5V
0
0.2
0.4 V
1
1.5
mA
2.5
4.5
mA
75
85
dB
5
7
MHz
Slew rate⁽¹⁾
1 V < EAN < 0 V, EAP = 500 mV,
0.5 V < EAOUT < 3 V
1.5
2.2
V/μs
No-load comparator turn-off threshold
0.45
0.5 0.55 V
No-load comparator turn-on threshold
0.55
0.6 0.69 V
No-load comparator hysteresis
0.035
0.1 0.165 V
Oscillator
f_OSC
Frequency
Frequency total variation⁽¹⁾
T_J = 25°C
Over line and temperature
473
500
2.5%
527 kHz
5%
V_{IH_SYNC}
V_{OH_SYNC}
V_{OL_SYNC}
V_RT
V_CT(peak)
V_CT(valley)
High-level input voltage, SYNC
High-level input voltage, SYNC
Low-level output voltage, SYNC
SYNC output pulse width
Timing resistor voltage
Timing capacitor peak voltage
Timing capacitor valley voltage
I_SYNC = –400 μA, V_CT = 2.6 V
I_SYNC = 100 μA, V_CT = 2.6 V
LOAD_SYNC = 3.9 kΩ and 30 pF in parallel
2.05
2.1
2.4 V
4.1
4.5
5V
0
0.5
1V
85
135 ns
2.9
3
3.1 V
2.25 2.35 2.55 V
0
0.2
0.4 V
(1) Specified by design
Copyright © 2008–2012, Texas Instruments Incorporated
Product Folder Link(s): UCC2895-Q1
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