参数资料
| 型号： | UBA2037TS/N1,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | IC DVR FULL BRIDGE 28-SSOP |
| 标准包装： | 1,000 |
| 类型： | HID 灯控制器 |
| 频率： | 100kHz |
| 电流 - 电源： | 500µA |
| 电流 - 输出： | 200mA |
| 电源电压： | 10.5 V ~ 13.5 V |
| 工作温度： | -40°C ~ 125°C |
| 封装/外壳： | 28-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 28-SSOP |
| 包装： | 带卷 (TR) |
| 其它名称： | 935284482118 |
NXP Semiconductors
Table 2.
Pin description …continued
UBA2037
Full bridge control IC for HID general lighting
Symbol
Pin
Pin
Description
UBA2037T UBA2037TS
n.c.
19
not connected
GLL
PGND
n.c.
GLR
n.c.
n.c.
SHR
FSR
GHR
17
18
19
20
21
22
23
24
20
21
22
23
24
25
26
27
28
gate driver output for lower left MOSFET
power ground
not connected
gate driver output for lower right MOSFET
not connected
not connected
source upper right MOSFET
?oating supply right
gate driver upper right MOSFET
7. Functional description
7.1 Supply voltage
The UBA2037 is powered by a supply voltage applied to pin HV, e.g. the supply voltage of
the full bridge. The IC generates its own low supply voltage for its internal circuitry.
Therefore an additional low voltage supply is not required. A capacitor has to be
connected to pin VDD to obtain a ripple-free internal supply voltage. The circuit can also
be powered by a low voltage supply directly applied to pin VDD. In this case pin HV should
be connected to pin VDD or pin SGND. The maximum current that the internal series
7.2 Start-up
With an increasing supply voltage the IC enters the start-up state i.e. the upper power
transistors are set in off-state and the lower power transistors are switched on. During the
start-up state the bootstrap capacitors are charged. The start-up state is de?ned until
V VDD = V startup(VDD) or V HV = V startup(HV) . The state of the outputs during the start-up phase
is overruled by the bridge disable function.
7.3 Oscillation state
At the moment the supply voltage on pin VDD exceeds V startup(VDD) or the supply voltage
on pin V HV exceeds V startup(HV) , the output voltage of the full bridge depends on the control
As soon as the supply voltage on pin VDD becomes lower than V UVLO(VDD) or the supply
voltage on pin V HV becomes lower than V UVLO(HV) , the IC enters the start-up state again.
UBA2037_1
? NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 01 — 30 October 2008
4 of 14
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